feat(relay): watch a reserve cell and flip it back on the first step 5 stop rule (#28698)

* feat(relay): watch a reserve cell and flip it back on the first step 5 stop rule

A manual, inert-until-dispatched workflow samples one reserve cell every minute for up to
300 minutes against the step 5 §9 stop rules, logs one JSON line per sample, and on the
first trip (or N unreadable samples in a row) runs the flag tool's own admitMode=db write
under the flag workflow's concurrency group. dry-run logs the flag tool's plan instead.

Claude-Session: f2fe8cb5-4467-4a25-8aab-98598b70791f

* fix(relay): keep the reserve watch's flip back out of the flag group, and baseline 503s before the flip

- The flip back holds no concurrency group: GitHub keeps one pending run per group and a
  newer one cancels it. The flag tool's CAS orders it instead; a generation conflict is
  re-read and retried (5 tries, backoff) while the switch file still says reserve.
- The 503 background comes from the 10 minutes before a required flipped-at, or an explicit
  value; neither is refused.
- A failed or cancelled write-mode watch flips back too. An unreachable cell fails with the
  exact break-glass inputs.
- Missing 503 data (empty series, unpublished minute, unparseable time) is unverifiable.
- Seat-behind-row key adds the director instance and cell; six segments share one command.

Claude-Session: f2fe8cb5-4467-4a25-8aab-98598b70791f

* fix(relay): read the reserve watch's 503 publishing front from every response code

A quiet fleet has no 503 series, so the watch read it as unverifiable and flipped a healthy
cell back within minutes. The 503 read now groups request_count by response code in one
query; the newest minute any code has a point for is how far the series is published, so a
503 minute at or before it with no point is zero and minutes past it are left out.

Also: the flip-back job's steps run on always(), flipped-at ages against the watch's start
in later segments, a pending pre-flip background no longer adds to the unverifiable streak,
the flip back retries runtime-status before calling for break glass, and the concurrency
rationale lives once in the docs.

Claude-Session: f2fe8cb5-4467-4a25-8aab-98598b70791f

* docs(relay): state what a cancel during the flip-back lease wait can leave, and the 503 publish-skew assumption

Claude-Session: f2fe8cb5-4467-4a25-8aab-98598b70791f

* fix(relay): fail a segment closed on a corrupt watch state file, and keep no checkout token on disk

Claude-Session: f2fe8cb5-4467-4a25-8aab-98598b70791f

* fix(relay): alarm on a failed flip back, refuse a watch under a rollout lease, wait for reserve to apply, and control the duplicate read

- A flip back whose write or plan never finished (no ID token, a failed login, a silent cell)
  raises an ::error:: annotation and a FLIP BACK FAILED summary, as the clock-skew monitor does.
- The first segment reads the Cloud SQL rollout lease through the lease action's own reader and
  refuses to start while any run holds it, or when it cannot be read.
- A cell not yet reporting reserve is waited on for up to 10 minutes, judging nothing, before the
  watch ends refused without a write.
- The duplicate-seat read takes the per-minute ledger summary in the same query and window; with
  no fresh summary in it the sample is unverifiable, not zero duplicates.

Claude-Session: f2fe8cb5-4467-4a25-8aab-98598b70791f

* fix(relay): page on a refused reserve watch or a failed flip back

A refused watch can leave a cell in reserve and unwatched, the same as a flip back that did not
land. Both now raise an escaped ::error:: annotation through one `alarm` command, and in write
mode write orca_relay_reserve_watch_alarm with gcloud logging write. A new log-based metric and
alert policy page on any such line, per cell, through relay_alert_notification_channels, and the
deploy identity gets roles/logging.logWriter in production to write it.

Claude-Session: f2fe8cb5-4467-4a25-8aab-98598b70791f

* fix(relay): name the log-writer risk, check the alarm's project, and say a failed login cannot page

Claude-Session: f2fe8cb5-4467-4a25-8aab-98598b70791f

* docs(relay): note a force-cancel can skip the reserve-watch flip-back write
This commit is contained in:
Jinwoo Hong
2026-10-14 20:42:27 -04:00
committed by GitHub
parent 48c1d4d86e
commit 6e46d5ef33
15 changed files with 2358 additions and 22 deletions
+12 -7
View File
@@ -244,7 +244,7 @@ function objectUrl(request, suffix = '') {
}
// One transient 5xx or network failure is retried once, as every relay admin step does.
async function readRuntime(fetchImpl, request, idToken, wait) {
export async function readRuntime(fetchImpl, request, idToken, wait) {
const response = await fetchAdminOnceMore(
fetchImpl,
`${request.cellOrigin}/v1/admin/runtime-status`,
@@ -262,7 +262,7 @@ async function readRuntime(fetchImpl, request, idToken, wait) {
return await response.json()
}
async function readCurrentObject(fetchImpl, request, accessToken) {
export async function readCurrentObject(fetchImpl, request, accessToken) {
const headers = { authorization: `Bearer ${accessToken}` }
const metadata = await fetchImpl(objectUrl(request), { headers })
if (metadata.status === 404) {
@@ -278,6 +278,12 @@ async function readCurrentObject(fetchImpl, request, accessToken) {
return { generation: String(generation), object: await media.json().catch(() => null) }
}
function generationConflict(current, expected) {
return Object.assign(new Error(`current generation is ${current}, not expected ${expected}`), {
generationConflict: true
})
}
async function writeObject(fetchImpl, request, object, accessToken, audit) {
const boundary = `relay-cell-flags-${Date.now()}`
const metadata = {
@@ -315,7 +321,8 @@ async function writeObject(fetchImpl, request, object, accessToken, audit) {
if (response.status === 412) {
await response.body?.cancel().catch(() => undefined)
throw Object.assign(new Error('the object changed since expected-generation; re-read and retry'), {
notWritten: true
notWritten: true,
generationConflict: true
})
}
if (!response.ok) {
@@ -409,7 +416,7 @@ async function breakGlassToDatabase(request, dependencies, { fetchImpl, log, sle
}
const current = await readCurrentObject(fetchImpl, request, accessToken)
if (current.generation !== request.expectedGeneration) {
throw new Error(`current generation is ${current.generation}, not expected ${request.expectedGeneration}`)
throw generationConflict(current.generation, request.expectedGeneration)
}
const object = desiredObject(request, current.object)
const generation = await writeObject(fetchImpl, request, object, accessToken, audit)
@@ -459,9 +466,7 @@ export async function operateCellFlags(request, dependencies) {
// Before the generation check, so a dry run always shows the generation to pass next.
log(JSON.stringify(plan))
if (current.generation !== request.expectedGeneration) {
throw new Error(
`current generation is ${current.generation}, not expected ${request.expectedGeneration}`
)
throw generationConflict(current.generation, request.expectedGeneration)
}
// The cell applies every readable write; a generation it did not apply was voided there. A
// write of an object this image accepts whole (checked above) repairs it.
@@ -33,6 +33,7 @@ test('no workflow names the retired generic production deploy identity', async (
'operate-relay-asia-admission.yml',
'operate-relay-production-cell-flags.yml',
'operate-relay-production-rehome-job.yml',
'operate-relay-production-reserve-watch.yml',
'publish-relay-production.yml'
].map((name) => relayWorkflowFile(name)).sort())
})
@@ -20,7 +20,7 @@ const UNGATED = relayWorkflowFile('verify.yml')
const relayWorkflows = () => workflowFiles().filter((file) => file !== UNGATED)
test('the copy carries every relay workflow', () => {
assert.equal(relayWorkflows().length, 27)
assert.equal(relayWorkflows().length, 28)
})
// Why: workflow_run chains match by display name, not filename. Renaming a file is safe; renaming
@@ -12,6 +12,8 @@ const deadMan = read('../../apps/relay/src/cell-reserve-dead-man.ts')
const registry = read('../../apps/relay/src/host-session-registry.ts')
const server = read('../../apps/relay/src/relay-server.ts')
const poller = read('../../apps/relay/src/shadow-seat-directory.ts')
const watch = read('./watch-relay-reserve-cell.mjs')
const githubActions = read('../../infra/terraform/relay-github-actions.tf')
const block = (kind, name) => {
const body = new RegExp(`resource "${kind}" "${name}" \\{([\\s\\S]*?)\\n\\}`).exec(terraform)?.[1]
@@ -84,3 +86,24 @@ test('the withheld dead-cell verdict alert counts every director withheld line,
assert.match(read('../../infra/terraform/variables.tf'), /variable "relay_dead_cell_verdict_alert" \{[\s\S]*?default = false/)
assert.match(read('../../infra/terraform/environments/staging.tfvars'), /relay_dead_cell_verdict_alert\s+= true/)
})
test('the reserve watch alarm pages on any line the watch runner writes, per cell', () => {
// The runner writes a global-resource entry under its own log name.
assert.match(watch, /export const ALARM_EVENT = 'orca_relay_reserve_watch_alarm'/)
assert.match(watch, /export const ALARM_LOG_NAME = 'orca-relay-reserve-watch'/)
assert.match(watch, /JSON\.stringify\(\{ event: ALARM_EVENT, cellId, kind, reason \}\)/)
const metric = block('google_logging_metric', 'relay_reserve_watch_alarm')
assert.ok(
metric.includes(
'resource.type=\\"global\\" AND logName=\\"projects/${var.project_id}/logs/orca-relay-reserve-watch\\" AND jsonPayload.event=\\"orca_relay_reserve_watch_alarm\\"'
)
)
assert.ok(metric.includes('cell_id = "EXTRACT(jsonPayload.cellId)"'))
notifyingOnAnyLine('relay_reserve_watch_alarm', 'orca_relay_reserve_watch_alarm', 'global', 'cell_id')
// The deploy identity the workflow runs as can write that line, and only in production.
const grant = /resource "google_project_iam_member" "github_log_writer" \{([\s\S]*?)\n\}/.exec(githubActions)?.[1]
assert.ok(grant, 'github_log_writer grant not found')
assert.match(grant, /count = local\.relay_create_production_ops_identity \? 1 : 0/)
assert.match(grant, /role = "roles\/logging\.logWriter"/)
assert.match(grant, /member = google_service_account\.github_deploy\[0\]\.member/)
})
@@ -0,0 +1,258 @@
// Stop rules for a cell watched in reserve mode (step 5 design §9, "Auto-abort per flip"). Pure:
// it takes one already-read sample and the watch state, and returns the next state and whether
// to flip the cell back. The reader lives in watch-relay-reserve-cell.mjs.
import { backgroundOf, SHADOW_GATE_THRESHOLDS } from './relay-same-cap-shadow-gate-verdict.mjs'
const MINUTE_MS = 60_000
export const RESERVE_WATCH_RULES = {
// The roll ladder's warn line: max(1.5x, background + 20), so a zero background is not tripped
// by one 503. Three complete minutes in a row, not two. The read spans more minutes than that so
// a late publishing front still leaves three published minutes to judge.
director503: {
multiple: SHADOW_GATE_THRESHOLDS.nonDrain503Budget.warnMultiple,
marginPerMinute: SHADOW_GATE_THRESHOLDS.nonDrain503Budget.warnMarginPerMinute,
consecutiveMinutes: 3,
readMinutes: 10,
// Cloud Run publishes a minute's request count up to 3 minutes late.
publishDelayMs: 3 * MINUTE_MS
},
// The cell closes a demoted seat after 60 s (DEMOTION_CLOSE_MS); 30 s more covers a director's
// map still holding the closed seat.
duplicateSeat: { graceMs: 60_000 + 30_000, lookbackMs: 15 * MINUTE_MS },
// The floor keeps an almost empty cell's ordinary churn from reading as a 5% drop.
hostDrop: { share: 0.05, windowMs: 5 * MINUTE_MS, minHosts: 10 },
ledgerDrift: { share: 0.005, sustainMs: 2 * MINUTE_MS },
// A placing director logs its ledger summary every 60 s; none in this long is no evidence.
ledgerSummaryMaxAgeMs: 150_000,
// A watch dispatched before the reserve write applies waits this long for the cell to report it.
reserveApplyWaitMs: 10 * MINUTE_MS
}
// Precedence: the first tripped rule names the verdict, so exact signals come before proxies. The
// sample line's `rules` keys follow this order too.
export const RULE_NAMES = ['deadMan', 'overrun', 'director503', 'duplicateSeat', 'hostDrop', 'ledgerDrift']
export function initialWatchState({ cellId, startedAt, durationMinutes, background503PerMinute, flippedAt }) {
return {
v: 1,
cellId,
startedAt,
deadlineAt: startedAt + durationMinutes * MINUTE_MS,
state: 'watching',
verdict: null,
samples: 0,
unverifiableStreak: 0,
// The background is measured in the minutes before the flip, unless the operator supplied it.
flippedAt: flippedAt ?? null,
background:
background503PerMinute === null ? null : { medianPerMinute: background503PerMinute, source: 'input' },
hosts: [],
reserveSeenAt: null,
ledgerAboveSince: null,
seatBehindRowFirstSeen: {}
}
}
// The background from the per-minute 503 counts before the flip. `publishedThrough` is the newest
// minute any response code has a point for: a 503 minute at or before it with no point had none,
// and the background waits (null) until it covers the last minute.
export function measuredBackground(perMinute, minutes, publishedThrough) {
if (minutes.length === 0 || publishedThrough === null || publishedThrough < minutes.at(-1)) return null
const background = backgroundOf({ minutes, series: minutes.map((minute) => perMinute[minute] ?? 0), unverified: false })
return { medianPerMinute: background.medianPerMinute, minutes: background.minutes, source: 'measured' }
}
const pass = (detail = {}) => ({ status: 'pass', ...detail })
const trip = (reason, detail = {}) => ({ status: 'trip', reason, ...detail })
const unverifiable = (reason) => ({ status: 'unverifiable', reason })
// Not readable yet by design, so it does not count toward the unverifiable streak.
const pending = (reason) => ({ status: 'pending', reason })
function judgeDeadMan(cell) {
if (!cell.ok) return unverifiable(cell.error)
if (cell.admitModeEffective !== 'db' && cell.admitModeEffective !== 'reserve') {
return unverifiable('runtime-status reports no admitModeEffective')
}
if (cell.admitModeEffective === 'db') {
return trip('the cell tripped its dead-man (reserve configured, db effective); Postgres still records reserve')
}
return pass()
}
// The cell ledger's total (seats, bookings, in-flight and phone units) against its hard cap. The
// ledger refuses past the cap, so this is an invariant check: it trips only if that refusal broke.
function judgeOverrun(cell) {
if (!cell.ok) return unverifiable(cell.error)
if (!Number.isInteger(cell.hardCap) || !Number.isInteger(cell.enforcedUnits)) {
return unverifiable('runtime-status reports no hard cap or ledger units')
}
if (cell.enforcedUnits > cell.hardCap) {
return trip(`ledger units ${cell.enforcedUnits} over hard cap ${cell.hardCap}`, {
enforcedUnits: cell.enforcedUnits,
hardCap: cell.hardCap
})
}
return pass({ enforcedUnits: cell.enforcedUnits, hardCap: cell.hardCap })
}
// Fleet-wide director 503s: no existing signal attributes a 503 to the cell a host was bound for,
// so a problem local to one cell can stay under the fleet's line. This proxy can miss.
function judgeDirector503(read, state, at) {
const { multiple, marginPerMinute, consecutiveMinutes, publishDelayMs } = RESERVE_WATCH_RULES.director503
const { background } = state
if (!background) {
const publishesAt = state.flippedAt === null ? null : Math.floor(state.flippedAt / MINUTE_MS) * MINUTE_MS + publishDelayMs
if (publishesAt !== null && at < publishesAt) return pending('the 503 background before the flip is not published yet')
return unverifiable('no 503 background yet')
}
if (!read.ok) return unverifiable(read.error)
const perMinute = background.medianPerMinute
const above = Math.max(perMinute * multiple, perMinute + marginPerMinute)
// Minute keys sort as time. Only minutes the publishing front has reached are judged: a 503
// minute there with no point had none, one past it is not published yet and is left out.
if (read.publishedThrough === null) return unverifiable('the director request series is empty')
const recent = read.minutes.filter((minute) => minute <= read.publishedThrough).slice(-consecutiveMinutes)
if (recent.length < consecutiveMinutes) {
return unverifiable(`director requests are published only through ${read.publishedThrough}`)
}
const counts = recent.map((minute) => read.perMinute[minute] ?? 0)
const detail = { backgroundPerMinute: perMinute, above, recent: Object.fromEntries(recent.map((m, i) => [m, counts[i]])) }
if (counts.every((count) => count > above)) {
return trip(`director 503s above ${above}/min for ${consecutiveMinutes} min (${counts.join(', ')})`, detail)
}
return pass(detail)
}
// A seat the ledger reconcile found behind its row and found again after the demotion should
// have closed it. The line names no host, so (director instance, cell, epoch, rowEpoch) stands in
// for one: a proxy that can only over-count, when two hosts share that key.
function judgeDuplicateSeat(read, firstSeen, at) {
if (!read.ok) return { verdict: unverifiable(read.error), firstSeen }
const { graceMs, lookbackMs } = RESERVE_WATCH_RULES.duplicateSeat
const next = Object.fromEntries(
Object.entries(firstSeen).filter(([, seenAt]) => seenAt >= at - 2 * lookbackMs)
)
for (const report of [...read.reports].sort((left, right) => left.at - right.at)) {
next[report.key] = Math.min(next[report.key] ?? report.at, report.at)
}
for (const report of read.reports) {
const ageMs = report.at - next[report.key]
if (ageMs > graceMs) {
return {
verdict: trip(`a seat behind its ledger row (${report.key}) is still seated ${Math.round(ageMs / 1000)} s after first report`),
firstSeen: next
}
}
}
return { verdict: pass({ reportsInLookback: read.reports.length }), firstSeen: next }
}
function judgeHostDrop(hosts) {
const { share, minHosts, windowMs } = RESERVE_WATCH_RULES.hostDrop
const current = hosts.at(-1)
if (!current) return unverifiable('no host count')
if (hosts.some((entry) => entry.draining)) return pass({ controls: current.controls, draining: true })
const peak = Math.max(...hosts.map((entry) => entry.controls))
const drop = peak - current.controls
const detail = { controls: current.controls, peakInWindow: peak }
if (peak > 0 && drop >= minHosts && drop / peak > share) {
return trip(`connected hosts fell ${peak} -> ${current.controls} within ${windowMs / MINUTE_MS} min outside a drain`, detail)
}
return pass(detail)
}
// Rows the placing directors have not written (queued) or gave up on (dropped), per seat. The
// summaries are fleet-wide: exact while this is the only reserve cell, an over-count otherwise.
function judgeLedgerDrift(cell, ledger, aboveSince, at) {
if (!cell.ok) return { verdict: unverifiable(cell.error), aboveSince }
if (!ledger.ok) return { verdict: unverifiable(ledger.error), aboveSince }
const { share, sustainMs } = RESERVE_WATCH_RULES.ledgerDrift
const ratio = ledger.unwrittenRows / Math.max(cell.controls, 1)
const detail = { unwrittenRows: ledger.unwrittenRows, directors: ledger.directors, ratio }
if (ratio <= share) return { verdict: pass(detail), aboveSince: null }
const since = aboveSince ?? at
if (at - since >= sustainMs) {
return {
verdict: trip(`ledger drift ${(ratio * 100).toFixed(2)}% for ${Math.round((at - since) / 1000)} s`, detail),
aboveSince: since
}
}
return { verdict: pass({ ...detail, aboveForMs: at - since }), aboveSince: since }
}
/**
* One sample. `sample.cell` is the cell's runtime-status, `director503` the complete minutes of
* director 503s with the request series' publishing front (`publishedThrough`), `ledger` the placing directors' newest ledger summaries, `seatBehindRow` this
* cell's reconcile reports in the lookback. Each is `{ ok: false, error }` when it could not be read.
*/
export function evaluateWatchSample(state, sample, { unverifiableLimit }) {
const at = sample.at
const next = { ...state, samples: state.samples + 1 }
const { cell } = sample
if (cell.ok && cell.admitModeConfigured !== 'reserve') {
const seen = state.reserveSeenAt !== null
if (!seen && at < state.startedAt + RESERVE_WATCH_RULES.reserveApplyWaitMs) {
// Not judged, and the streak holds: the reserve write may not have applied yet.
const rules = { reserve: pending(`switch file says ${cell.admitModeConfigured}; waiting for reserve to apply`) }
return { state: next, rules, line: sampleLine(next, sample, rules) }
}
// Someone else flipped it back (or it never became reserve): nothing left to watch.
next.state = seen ? 'stopped' : 'refused'
next.verdict = seen
? `${state.cellId} is not in reserve mode (switch file says ${cell.admitModeConfigured})`
: `${state.cellId} did not report reserve mode within ${RESERVE_WATCH_RULES.reserveApplyWaitMs / MINUTE_MS} min (switch file says ${cell.admitModeConfigured})`
return { state: next, rules: {}, line: sampleLine(next, sample, {}) }
}
if (cell.ok) {
next.reserveSeenAt = state.reserveSeenAt ?? at
next.hosts = [...state.hosts, { at, controls: cell.controls, draining: cell.draining }].filter(
(entry) => entry.at > at - RESERVE_WATCH_RULES.hostDrop.windowMs
)
}
const duplicate = judgeDuplicateSeat(sample.seatBehindRow, state.seatBehindRowFirstSeen, at)
next.seatBehindRowFirstSeen = duplicate.firstSeen
const ledger = judgeLedgerDrift(cell, sample.ledger, state.ledgerAboveSince, at)
next.ledgerAboveSince = ledger.aboveSince
const rules = {
deadMan: judgeDeadMan(cell),
overrun: judgeOverrun(cell),
director503: judgeDirector503(sample.director503, state, at),
duplicateSeat: duplicate.verdict,
hostDrop: cell.ok ? judgeHostDrop(next.hosts) : unverifiable(cell.error),
ledgerDrift: ledger.verdict
}
const tripped = RULE_NAMES.find((name) => rules[name].status === 'trip')
if (tripped) {
next.state = 'tripped'
next.verdict = `flip back ${state.cellId}: ${tripped}: ${rules[tripped].reason}`
return { state: next, rules, line: sampleLine(next, sample, rules) }
}
const missing = RULE_NAMES.filter((name) => rules[name].status === 'unverifiable')
const waiting = RULE_NAMES.some((name) => rules[name].status === 'pending')
// A pending rule holds the streak where it was: neither evidence of health nor a gap.
next.unverifiableStreak = missing.length > 0 ? state.unverifiableStreak + 1 : waiting ? state.unverifiableStreak : 0
if (next.unverifiableStreak >= unverifiableLimit) {
next.state = 'tripped'
next.verdict =
`flip back ${state.cellId}: unverifiable: ${next.unverifiableStreak} samples in a row could not ` +
`read ${missing.join(', ')}`
} else if (at >= state.deadlineAt) {
next.state = 'completed'
next.verdict = `${state.cellId} stayed healthy in reserve mode for the whole watch`
}
return { state: next, rules, line: sampleLine(next, sample, rules) }
}
function sampleLine(state, sample, rules) {
return JSON.stringify({
event: 'orca_relay_reserve_watch_sample',
cellId: state.cellId,
at: new Date(sample.at).toISOString(),
sample: state.samples,
state: state.state,
unverifiableStreak: state.unverifiableStreak,
rules,
...(state.verdict ? { verdict: state.verdict } : {})
})
}
@@ -122,7 +122,7 @@ async function retryingRead(reader, read) {
return { failed: true, error: String(lastError?.message ?? lastError) }
}
async function readLogEntries(reader, { filter, projection, limit = ENTRY_LIMIT }) {
export async function readLogEntries(reader, { filter, projection, limit = ENTRY_LIMIT }) {
const args = [
'logging', 'read', filter,
'--project', reader.projectId,
@@ -154,21 +154,22 @@ async function readTimestampsOverWindow(reader, { filter, window }) {
// Cloud Run's own request counter, aligned per minute server-side: a brownout's tens of thousands
// of 503s are counted, where a log read of them stops at its entry limit (10-01 c29).
async function readDirector503PerMinute(reader, { config, span }) {
async function readDirectorRequestCountSeries(reader, { config, span, filters = [], groupByFields }) {
const url = new URL(`https://monitoring.googleapis.com/v3/projects/${config.projectId}/timeSeries`)
url.searchParams.set('filter', [
'metric.type="run.googleapis.com/request_count"',
'resource.type="cloud_run_revision"',
`resource.label."service_name"="${config.directorService}"`,
'metric.label."response_code"="503"'
...filters
].join(' AND '))
url.searchParams.set('interval.startTime', span.startedAt.toISOString())
url.searchParams.set('interval.endTime', span.endedAt.toISOString())
url.searchParams.set('aggregation.alignmentPeriod', '60s')
url.searchParams.set('aggregation.perSeriesAligner', 'ALIGN_DELTA')
url.searchParams.set('aggregation.crossSeriesReducer', 'REDUCE_SUM')
if (groupByFields) url.searchParams.set('aggregation.groupByFields', groupByFields)
url.searchParams.set('pageSize', '1000')
const read = await retryingRead(reader, async (timeoutMs) => {
return await retryingRead(reader, async (timeoutMs) => {
const { stdout } = await reader.runGcloud(['auth', 'print-access-token'], { timeoutMs })
const response = await reader.fetch(url, {
headers: { authorization: `Bearer ${stdout.trim()}` },
@@ -179,17 +180,44 @@ async function readDirector503PerMinute(reader, { config, span }) {
if (body.nextPageToken) throw new Error('Cloud Monitoring pagination is incomplete')
return { timeSeries: body.timeSeries ?? [] }
})
const perMinute = {}
for (const series of read.timeSeries ?? []) {
for (const point of series.points ?? []) {
// A delta point covers the minute that ends at its end time; a minute with no point had none.
const minute = minuteKey(Date.parse(point.interval.endTime) - 60_000)
perMinute[minute] = (perMinute[minute] ?? 0) + Number(point.value.int64Value ?? 0)
}
}
function addPointsPerMinute(perMinute, series) {
for (const point of series.points ?? []) {
// A delta point covers the minute that ends at its end time; a minute with no point had none.
const minute = minuteKey(Date.parse(point.interval.endTime) - 60_000)
perMinute[minute] = (perMinute[minute] ?? 0) + Number(point.value.int64Value ?? 0)
}
return perMinute
}
export async function readDirector503PerMinute(reader, { config, span }) {
const read = await readDirectorRequestCountSeries(reader, {
config,
span,
filters: ['metric.label."response_code"="503"']
})
const perMinute = {}
for (const series of read.timeSeries ?? []) addPointsPerMinute(perMinute, series)
return { perMinute, failed: read.failed }
}
// Every response code in one read, so a minute missing from the 503 series can be told apart from
// one not published yet: the other codes' series carry the same publishing front.
export async function readDirectorRequestsByCodePerMinute(reader, { config, span }) {
const read = await readDirectorRequestCountSeries(reader, {
config,
span,
groupByFields: 'metric.label."response_code"'
})
const byCode = {}
for (const series of read.timeSeries ?? []) {
const code = series.metric?.labels?.response_code ?? 'unknown'
byCode[code] = addPointsPerMinute(byCode[code] ?? {}, series)
}
return { byCode, failed: read.failed }
}
// Cells log through the COS container agent, so the text lives in jsonPayload.message; a
// textPayload filter matches nothing here and returns zero without saying so.
const CELL_LOG_SCOPE = 'resource.type="gce_instance" AND logName:"cos_containers"'
@@ -0,0 +1,581 @@
#!/usr/bin/env node
// Watches one cell already in reserve mode and, on the first stop rule it trips, flips it back to
// db through the flag tool's own write (CAS, read-back, re-registration wait). Step 5 design §9.
//
// watch: one segment of the watch (the workflow re-authenticates between segments, since an
// ID token lasts an hour). State carries over in --state-file. Writes nothing.
// outcome: the job's state and verdict, from the state file.
// flip-back: the flag tool's admitMode=db write (or its dry run), then exits non-zero with the
// watch's verdict. Why it holds no flag-workflow group: docs/relay-workflows.md.
// alarm: a refused watch or a flip back that did not land: an error annotation, and in write
// mode a log line the reserve-watch alert pages on.
import { execFile } from 'node:child_process'
import { appendFile, readFile, writeFile } from 'node:fs/promises'
import { parseArgs, promisify } from 'node:util'
import { pathToFileURL } from 'node:url'
import {
BREAK_GLASS_CONFIRMATION,
operateCellFlags,
parseCellFlagsRequest,
readCurrentObject,
readRuntime,
WRITE_CONFIRMATION
} from './operate-relay-cell-flags.mjs'
import { readDirectorRequestsByCodePerMinute, readLogEntries } from './relay-same-cap-shadow-gate.mjs'
import { minutesOf } from './relay-same-cap-shadow-gate-verdict.mjs'
import { PRODUCTION_LEASE } from './cloud-sql-rollout-lock-census.mjs'
import { RELAY_REPOSITORY_ROOT } from './relay-repository.mjs'
import {
evaluateWatchSample,
initialWatchState,
measuredBackground,
RESERVE_WATCH_RULES
} from './relay-reserve-watch-rules.mjs'
const execFileAsync = promisify(execFile)
const MINUTE_MS = 60_000
export const SAMPLE_INTERVAL_MS = MINUTE_MS
export const MAX_WATCH_MINUTES = 300
// Below the hour an ID token lasts, with room for the segment's last sample.
export const MAX_SEGMENT_MINUTES = 55
const METRIC_DELAY_MS = RESERVE_WATCH_RULES.director503.publishDelayMs
const BACKGROUND_MINUTES = 10
// A flipped-at older than this is a typo or a stale dispatch, not this flip.
const MAX_FLIPPED_AT_AGE_MS = 24 * 60 * MINUTE_MS
export const FLIP_BACK_ATTEMPTS = 5
const FLIP_BACK_BACKOFF_MS = 2_000
// One slow runtime-status reply is not a dead cell: retried this often before break glass.
export const FLIP_BACK_RUNTIME_ATTEMPTS = 4
const SAMPLE_READ_BUDGET_MS = 40_000
const LOG_ENTRY_LIMIT = 1_000
function integerIn(name, raw, min, max) {
const value = Number(raw)
if (!/^[0-9]+$/.test(raw ?? '') || value < min || value > max) {
throw new Error(`--${name} must be an integer from ${min} to ${max}`)
}
return value
}
// The flip back's request. Its generation is a placeholder: the flip back re-reads the current one.
export function dbFlipRequest(values) {
return parseCellFlagsRequest({ ...values, set: 'admitMode=db', 'expected-generation': '0' })
}
// `now` is the watch's start: a later segment of a long watch must not age flipped-at out.
function parseFlippedAt(raw, now) {
if (raw === '') return null
const at = Date.parse(raw)
if (!/^\d{4}-\d{2}-\d{2}T\d{2}:\d{2}(:\d{2}(\.\d{1,3})?)?(Z|[+-]\d{2}:\d{2})$/.test(raw) || !Number.isFinite(at)) {
throw new Error('--flipped-at must be an ISO time with a zone, e.g. 2026-10-14T12:00:00Z')
}
if (at > now) throw new Error('--flipped-at is in the future')
if (at < now - MAX_FLIPPED_AT_AGE_MS) throw new Error('--flipped-at is more than 24 hours ago')
return at
}
export function parseWatchArguments(values, now = Date.now()) {
// The flag tool's own checks, so the watch is of exactly the cell the flip back would write;
// a write-mode watch refuses a missing confirmation now, not hours later.
const request = dbFlipRequest(values)
if (!/^[a-z][a-z0-9-]{0,62}$/.test(values['director-service'] ?? '')) {
throw new Error('--director-service is not a Cloud Run service name')
}
const background = values['background-503-per-minute'] ?? ''
if (background !== '' && !/^(0|[1-9][0-9]{0,6})(\.[0-9]+)?$/.test(background)) {
throw new Error('--background-503-per-minute must be empty (measure it) or a non-negative number')
}
// The background must predate the flip: a watch starts after it, so its own past is not one.
const flippedAt = parseFlippedAt(values['flipped-at'] ?? '', now)
if (background === '' && flippedAt === null) {
throw new Error('--flipped-at (the background is the 10 minutes before it) or --background-503-per-minute is required')
}
if (!values['state-file']) throw new Error('--state-file is required')
return {
request,
directorService: values['director-service'],
durationMinutes: integerIn('duration-minutes', values['duration-minutes'], 5, MAX_WATCH_MINUTES),
segmentMinutes: integerIn('segment-minutes', values['segment-minutes'], 1, MAX_SEGMENT_MINUTES),
unverifiableLimit: integerIn('unverifiable-limit', values['unverifiable-limit'], 1, 30),
background503PerMinute: background === '' ? null : Number(background),
flippedAt,
stateFile: values['state-file'],
githubOutput: values['github-output'] || null
}
}
const failedRead = (error) => ({ ok: false, error: error instanceof Error ? error.message : String(error) })
export async function readCellSample(fetchImpl, request, idToken, wait) {
try {
const runtime = await readRuntime(fetchImpl, request, idToken, wait)
if (runtime.role !== 'cell' || runtime.cellId !== request.cellId) {
return failedRead(`origin answers as ${runtime.role}/${runtime.cellId}`)
}
if (!runtime.flagsApplied) return failedRead('runtime-status reports no flagsApplied')
const controls = runtime.runtime?.controls
if (!Number.isInteger(controls)) return failedRead('runtime-status reports no control count')
return {
ok: true,
admitModeConfigured: runtime.flagsApplied.flags?.admitMode ?? 'db',
admitModeEffective: runtime.admitModeEffective,
draining: runtime.draining === true,
controls,
enforcedUnits: runtime.runtime?.enforcedConnectionUnits,
hardCap: runtime.connectionCapacity?.hardCap
}
} catch (error) {
return failedRead(error)
}
}
const minuteFloor = (at) => Math.floor(at / MINUTE_MS) * MINUTE_MS
const failed503Read = (error) => ({ ok: false, error, perMinute: {}, minutes: [], publishedThrough: null })
// The `minutes` whole minutes that end at the minute boundary `endedAt`: the 503 counts, and the
// newest minute any response code has a point for. The director always serves something, so that
// front is how far the 503 series is published; no front at all is no evidence. A code publishing
// late only delays a trip: a later read sees its points.
export async function readDirector503Minutes(reader, { projectId, directorService, endedAt, minutes }) {
const span = { startedAt: new Date(endedAt - minutes * MINUTE_MS), endedAt: new Date(endedAt) }
let read
try {
read = await readDirectorRequestsByCodePerMinute(reader, { config: { projectId, directorService }, span })
} catch (error) {
// A point with an unparseable end time has no minute.
return failed503Read(`director 503 metric unreadable: ${error instanceof Error ? error.message : error}`)
}
if (read.failed) return failed503Read('director 503 metric read failed')
const published = Object.values(read.byCode).flatMap((perMinute) => Object.keys(perMinute)).sort()
return {
ok: true,
perMinute: read.byCode['503'] ?? {},
minutes: minutesOf(span),
publishedThrough: published.at(-1) ?? null
}
}
const LEDGER_SUMMARY_EVENT = 'orca_relay_reserve_ledger_summary'
const SEAT_BEHIND_ROW_EVENT = 'orca_relay_reserve_ledger_seat_behind_row'
function directorLogFilter(directorService, eventClause, sinceAt) {
return [
'resource.type="cloud_run_revision"',
`resource.labels.service_name="${directorService}"`,
eventClause,
`timestamp>="${new Date(sinceAt).toISOString()}"`
].join(' AND ')
}
// Newest summary per director instance; queued plus dropped rows are the ones not in Postgres.
export async function readLedgerSample(reader, { directorService, at }) {
const read = await readLogEntries(reader, {
filter: directorLogFilter(directorService, `jsonPayload.event="${LEDGER_SUMMARY_EVENT}"`, at - RESERVE_WATCH_RULES.ledgerSummaryMaxAgeMs),
projection: 'json(timestamp,labels.instanceId,jsonPayload.pending,jsonPayload.dropped)',
limit: LOG_ENTRY_LIMIT
})
if (read.failed) return failedRead(read.error)
if (read.entries.length >= LOG_ENTRY_LIMIT) return failedRead('ledger summary read truncated')
if (read.entries.length === 0) return failedRead('no placing director logged a ledger summary')
if (read.entries.some((entry) => !Number.isFinite(Date.parse(entry.timestamp)))) {
return failedRead('ledger summary with an unparseable timestamp')
}
const newest = new Map()
for (const entry of read.entries) {
const instance = entry.labels?.instanceId ?? 'unknown'
const previous = newest.get(instance)
if (!previous || Date.parse(entry.timestamp) > Date.parse(previous.timestamp)) newest.set(instance, entry)
}
let unwrittenRows = 0
for (const entry of newest.values()) {
const pending = Number(entry.jsonPayload?.pending)
const dropped = Number(entry.jsonPayload?.dropped)
if (!Number.isFinite(pending) || !Number.isFinite(dropped)) return failedRead('ledger summary without counts')
unwrittenRows += pending + dropped
}
return { ok: true, unwrittenRows, directors: newest.size }
}
// The same read also takes the ledger summary every placing director logs each minute, as a
// positive control: with no fresh summary in it, no seat-behind-row line is blindness, not zero.
export async function readSeatBehindRowSample(reader, { directorService, cellId, at }) {
const read = await readLogEntries(reader, {
filter: directorLogFilter(
directorService,
`((jsonPayload.event="${SEAT_BEHIND_ROW_EVENT}" AND jsonPayload.cellId="${cellId}") OR jsonPayload.event="${LEDGER_SUMMARY_EVENT}")`,
at - RESERVE_WATCH_RULES.duplicateSeat.lookbackMs
),
projection: 'json(timestamp,labels.instanceId,jsonPayload.event,jsonPayload.epoch,jsonPayload.rowEpoch)',
limit: LOG_ENTRY_LIMIT
})
if (read.failed) return failedRead(read.error)
if (read.entries.length >= LOG_ENTRY_LIMIT) return failedRead('seat-behind-row read truncated')
const reports = []
let controlSeen = false
for (const entry of read.entries) {
const reportedAt = Date.parse(entry.timestamp)
if (!Number.isFinite(reportedAt)) return failedRead('seat-behind-row line with an unparseable timestamp')
if (entry.jsonPayload?.event === LEDGER_SUMMARY_EVENT) {
controlSeen ||= reportedAt >= at - RESERVE_WATCH_RULES.ledgerSummaryMaxAgeMs
continue
}
const { epoch, rowEpoch } = entry.jsonPayload ?? {}
if (epoch === undefined || rowEpoch === undefined) return failedRead('seat-behind-row line without epochs')
// Everything the line carries but its time, which differs on every report of one seat. A
// proxy for the host: two hosts sharing it read as one seat, so it can only over-count.
reports.push({ at: reportedAt, key: `${entry.labels?.instanceId ?? 'unknown'}/${cellId}/${epoch}:${rowEpoch}` })
}
if (!controlSeen) return failedRead('seat-behind-row read holds no fresh ledger summary (positive control)')
return { ok: true, reports }
}
function createReader(dependencies, projectId) {
const now = dependencies.now
return {
runGcloud: dependencies.runGcloud,
fetch: dependencies.fetchImpl,
retryDelayMs: dependencies.retryDelayMs ?? 5_000,
readTimeoutMs: 20_000,
now,
// Every sample gets its own budget, so a slow read costs one sample, not the watch.
deadlineAt: now() + SAMPLE_READ_BUDGET_MS,
projectId
}
}
/**
* Same-cap and capacity rolls hold the Cloud SQL rollout lease for the whole run; it names no
* cell, so any live holder refuses the watch's start. Read only: holding it for hours would block
* every rollout. An unreadable lease refuses too (fail closed, as the lease action does).
*/
export async function rolloutLeaseRefusal(readRolloutLease, now) {
try {
const existing = await readRolloutLease()
if (!existing || existing.record.expires_at <= now) return null
return (
`a rollout holds the Cloud SQL rollout lease until ${new Date(existing.record.expires_at).toISOString()} ` +
`(${existing.holder}); start the watch after it ends`
)
} catch (error) {
return `the Cloud SQL rollout lease is unreadable (${error instanceof Error ? error.message : error}); refusing to start`
}
}
// The lease action's own reader, resolved from the repository root because this tree's depth
// differs between the two repositories' copies.
async function readProductionRolloutLease() {
const action = new URL('.github/actions/cloud-sql-rollout-lease/', RELAY_REPOSITORY_ROOT)
const [{ CloudSqlRolloutLease, describeHolder }, { createAccessTokenSource }] = await Promise.all([
import(new URL('storage-lease.mjs', action).href),
import(new URL('gcloud-access-token.mjs', action).href)
])
const lease = new CloudSqlRolloutLease({
bucket: PRODUCTION_LEASE.bucket,
objectName: PRODUCTION_LEASE.object,
accessToken: createAccessTokenSource()
})
const existing = await lease.read()
return existing && { record: existing.record, holder: describeHolder(existing.record) }
}
// Only a missing file is a fresh watch. Anything else that is not a state fails the segment, which
// the outcome step reads as failed and flips back: a corrupt file must not restart or refuse the watch.
export async function loadState(path) {
const text = await readFile(path, 'utf8').catch((error) => (error?.code === 'ENOENT' ? null : Promise.reject(error)))
if (text === null) return null
const state = JSON.parse(text)
const isObject = state !== null && typeof state === 'object' && !Array.isArray(state)
if (!isObject || typeof state.state !== 'string') throw new Error(`state file ${path} holds no watch state`)
if (state.state === 'watching' && (typeof state.cellId !== 'string' || !Number.isFinite(state.startedAt))) {
throw new Error(`state file ${path} has no cell or start`)
}
return state
}
// A segment's config. Later segments check flipped-at against the watch's start; bad inputs before
// the first sample are refused, so no flip back follows a typo.
export async function parseWatchSegment(values, now = Date.now()) {
const existing = values['state-file'] ? await loadState(values['state-file']) : null
try {
return parseWatchArguments(values, Number.isFinite(existing?.startedAt) ? existing.startedAt : now)
} catch (error) {
if (values['state-file'] && existing === null) {
await writeFile(values['state-file'], JSON.stringify({ state: 'refused', verdict: error.message }))
}
throw error
}
}
export async function watchSegment(config, dependencies) {
const now = dependencies.now ?? Date.now
const sleep = dependencies.sleep ?? ((ms) => new Promise((resolve) => setTimeout(resolve, ms)))
const log = dependencies.log ?? console.log
const deps = { ...dependencies, now, sleep, fetchImpl: dependencies.fetchImpl ?? fetch }
const { request, directorService } = config
let state = await loadState(config.stateFile)
if (state === null) {
const refusal = await rolloutLeaseRefusal(dependencies.readRolloutLease, now())
if (refusal) {
state = { state: 'refused', verdict: refusal }
await writeFile(config.stateFile, JSON.stringify(state))
if (config.githubOutput) await writeOutcome(config.githubOutput, state)
return state
}
state = initialWatchState({
cellId: request.cellId,
startedAt: now(),
durationMinutes: config.durationMinutes,
background503PerMinute: config.background503PerMinute,
flippedAt: config.flippedAt
})
}
if (state.cellId !== request.cellId) throw new Error(`state file is for ${state.cellId}, not ${request.cellId}`)
const segmentEndsAt = now() + config.segmentMinutes * MINUTE_MS
while (state.state === 'watching' && now() < segmentEndsAt) {
const at = now()
const baselineEndsAt = state.flippedAt === null ? null : minuteFloor(state.flippedAt)
if (!state.background && baselineEndsAt !== null && at >= baselineEndsAt + METRIC_DELAY_MS) {
// The minutes just before the flip, once published; retried every sample until one reads.
const read = await readDirector503Minutes(createReader(deps, request.projectId), {
projectId: request.projectId,
directorService,
endedAt: baselineEndsAt,
minutes: BACKGROUND_MINUTES
})
state = { ...state, background: read.ok ? measuredBackground(read.perMinute, read.minutes, read.publishedThrough) : null }
}
const reader = createReader(deps, request.projectId)
// Serialised: concurrent Logging reads are what earn a 429.
const sample = {
at,
cell: await readCellSample(deps.fetchImpl, request, dependencies.idToken, sleep),
director503: await readDirector503Minutes(reader, {
projectId: request.projectId,
directorService,
// Complete minutes only, held back past the publishing delay.
endedAt: minuteFloor(at - METRIC_DELAY_MS),
minutes: RESERVE_WATCH_RULES.director503.readMinutes
}),
ledger: await readLedgerSample(reader, { directorService, at }),
seatBehindRow: await readSeatBehindRowSample(reader, { directorService, cellId: request.cellId, at })
}
const result = evaluateWatchSample(state, sample, { unverifiableLimit: config.unverifiableLimit })
state = result.state
log(result.line)
await writeFile(config.stateFile, JSON.stringify(state))
if (state.state !== 'watching') break
await sleep(Math.max(0, at + SAMPLE_INTERVAL_MS - now()))
}
if (config.githubOutput) await writeOutcome(config.githubOutput, state)
return state
}
function writeOutcome(githubOutput, { state, verdict }) {
return appendFile(githubOutput, `state=${state}\nverdict=${(verdict ?? '').replace(/[\r\n]+/g, ' ')}\n`)
}
// The job's outcome. A watch that ended mid-segment (a crash, a timeout) records failed, which the
// workflow flips back in write mode: missing data is never healthy.
export async function recordOutcome(stateFile, githubOutput) {
const state = await loadState(stateFile).catch(() => null)
const outcome =
state && state.state !== 'watching' ? state : { state: 'failed', verdict: 'the watch stopped before a verdict' }
await writeOutcome(githubOutput, outcome)
return outcome
}
function breakGlassInputs(request, generation) {
return {
mode: 'write',
'cell-id': request.cellId,
set: 'admitMode=default',
'break-glass': `${BREAK_GLASS_CONFIRMATION} ${request.cellId}`,
'expected-generation': generation,
confirmation: `${WRITE_CONFIRMATION} ${request.cellId}`
}
}
async function readRuntimeRetrying(fetchImpl, request, idToken, sleep, log) {
for (let attempt = 1; ; attempt += 1) {
try {
return await readRuntime(fetchImpl, request, idToken, sleep)
} catch (error) {
if (attempt >= FLIP_BACK_RUNTIME_ATTEMPTS) throw error
log(JSON.stringify({ event: 'orca_relay_reserve_watch_runtime_retry', cellId: request.cellId, attempt, message: error instanceof Error ? error.message : String(error) }))
await sleep(FLIP_BACK_BACKOFF_MS * 2 ** (attempt - 1))
}
}
}
/**
* The flag tool's admitMode=db write at the generation read just now. A generation conflict (some
* other write landed first) is re-read and retried while the switch file still says reserve; a
* file that already says db is done. A cell that still does not answer after the runtime retries
* needs break glass, which only an operator may type.
*/
export async function flipBack(values, dependencies) {
const log = dependencies.log ?? console.log
const fetchImpl = dependencies.fetchImpl ?? fetch
const sleep = dependencies.sleep ?? ((ms) => new Promise((resolve) => setTimeout(resolve, ms)))
const base = dbFlipRequest(values)
const record = (result) =>
log(
JSON.stringify({
event: 'orca_relay_reserve_watch_flip_back',
mode: base.mode,
cellId: base.cellId,
written: result.written,
generation: result.generation ?? null,
...(result.alreadyDb ? { alreadyDb: true } : {})
})
)
for (let attempt = 1; ; attempt += 1) {
const current = await readCurrentObject(fetchImpl, base, dependencies.accessToken)
if ((current.object?.flags?.admitMode ?? 'db') !== 'reserve') {
const result = { written: false, alreadyDb: true, generation: current.generation }
record(result)
return result
}
try {
await readRuntimeRetrying(fetchImpl, base, dependencies.idToken, sleep, log)
} catch (error) {
const inputs = breakGlassInputs(base, current.generation)
log(JSON.stringify({ event: 'orca_relay_reserve_watch_break_glass_required', cellId: base.cellId, inputs }))
throw new Error(
`${base.cellId} does not answer runtime-status (${error instanceof Error ? error.message : error}), so ` +
'the flag tool cannot flip it back. Run Operate Relay Production Cell Flags with break glass: ' +
Object.entries(inputs).map(([key, value]) => `${key}=${value}`).join(', ')
)
}
try {
const result = await operateCellFlags(
{ ...base, expectedGeneration: current.generation },
{ ...dependencies, fetchImpl, log, sleep }
)
record(result)
return result
} catch (error) {
if (!error?.generationConflict || attempt >= FLIP_BACK_ATTEMPTS) throw error
log(JSON.stringify({ event: 'orca_relay_reserve_watch_flip_back_conflict', cellId: base.cellId, attempt, message: error.message }))
await sleep(FLIP_BACK_BACKOFF_MS * 2 ** (attempt - 1))
}
}
}
export const ALARM_EVENT = 'orca_relay_reserve_watch_alarm'
export const ALARM_LOG_NAME = 'orca-relay-reserve-watch'
export const ALARM_KINDS = ['refused', 'flip-back-failed']
// GitHub's workflow-command escaping, so a verdict cannot end the annotation or start another.
export const escapeWorkflowCommand = (text) => text.replace(/%/g, '%25').replace(/\r/g, '%0D').replace(/\n/g, '%0A')
const escapeWorkflowProperty = (text) => escapeWorkflowCommand(text).replace(/:/g, '%3A').replace(/,/g, '%2C')
/**
* Both kinds can leave the cell in reserve with nothing watching it. Only write mode pages: a
* dry-run watch never flips back, so its refusal or failure changes nothing for the cell.
*/
export async function raiseAlarm({ mode, cellId, projectId, kind, reason }, { runGcloud, log = console.log }) {
if (!ALARM_KINDS.includes(kind)) throw new Error(`--kind must be one of ${ALARM_KINDS.join(', ')}`)
const message =
kind === 'refused'
? `${cellId} may be in reserve mode and unwatched: the watch was refused (${reason}). Rerun it, or flip the cell to db with Operate Relay Production Cell Flags.`
: `${cellId} may still be in reserve mode with no watch: the flip back did not land (${reason}). Flip it to db by hand with Operate Relay Production Cell Flags (set=admitMode=db), or with the break-glass inputs logged above if the cell does not answer.`
log(`::error title=${escapeWorkflowProperty(`Reserve watch ${kind} for ${cellId}`)}::${escapeWorkflowCommand(message)}`)
if (mode !== 'write') return { paged: false }
const entry = JSON.stringify({ event: ALARM_EVENT, cellId, kind, reason })
try {
// The flag tool's project check: a missing --project-id must not reach gcloud as "undefined".
if (!/^[a-z][a-z0-9-]{4,62}$/.test(projectId ?? '')) throw new Error('--project-id is not a GCP project id')
await runGcloud(
['logging', 'write', ALARM_LOG_NAME, entry, '--payload-type=json', '--severity=ERROR', '--project', projectId],
{ timeoutMs: 30_000 }
)
} catch (error) {
log(`::error title=Reserve watch page failed::${escapeWorkflowCommand(`the alarm log line was not written, so nothing pages: ${error instanceof Error ? error.message : error}`)}`)
return { paged: false }
}
return { paged: true }
}
if (import.meta.url === pathToFileURL(process.argv[1] ?? '').href) {
const [command, ...rest] = process.argv.slice(2)
const { values } = parseArgs({
args: rest,
options: Object.fromEntries(
[
'mode',
'cell-id',
'cell-origin',
'project-id',
'director-origin',
'director-service',
'confirmation',
'duration-minutes',
'segment-minutes',
'unverifiable-limit',
'background-503-per-minute',
'flipped-at',
'state-file',
'github-output',
'verdict',
'kind'
].map((name) => [name, { type: 'string' }])
)
})
const idToken = process.env.ORCA_RELAY_ADMIN_ID_TOKEN
const runGcloud = (args, { timeoutMs }) =>
execFileAsync('gcloud', args, { maxBuffer: 64 * 1024 * 1024, timeout: timeoutMs, killSignal: 'SIGKILL' })
try {
if (command === 'alarm') {
await raiseAlarm(
{ mode: values.mode, cellId: values['cell-id'] ?? '', projectId: values['project-id'], kind: values.kind, reason: values.verdict ?? '' },
{ runGcloud }
)
// The alarm step is red, whatever the page did.
process.exitCode = 1
} else if (command === 'outcome') {
if (!values['state-file'] || !values['github-output']) throw new Error('--state-file and --github-output are required')
console.log(JSON.stringify({ event: 'orca_relay_reserve_watch_outcome', ...(await recordOutcome(values['state-file'], values['github-output'])) }))
} else if (!idToken) {
throw new Error('ORCA_RELAY_ADMIN_ID_TOKEN is required')
} else if (command === 'watch') {
const config = await parseWatchSegment(values)
const state = await watchSegment(config, {
idToken,
readRolloutLease: readProductionRolloutLease,
runGcloud
})
// A cell that was never reserve is the operator's mistake; one flipped back by hand is not.
if (state.state === 'refused') {
console.log(JSON.stringify({ event: 'orca_relay_reserve_watch_refused', verdict: state.verdict }))
process.exitCode = 1
}
} else if (command === 'flip-back') {
const accessToken = process.env.ORCA_RELAY_CONTROL_ACCESS_TOKEN
if (!accessToken) throw new Error('ORCA_RELAY_CONTROL_ACCESS_TOKEN is required')
if (!values.verdict) throw new Error('--verdict is required')
await flipBack(values, {
accessToken,
idToken,
audit: {
writtenBy: `reserve-watch/${process.env.GITHUB_TRIGGERING_ACTOR ?? process.env.GITHUB_ACTOR ?? 'unknown'}`,
runId: process.env.GITHUB_RUN_ID ?? 'local',
runAttempt: process.env.GITHUB_RUN_ATTEMPT ?? '0'
}
})
// A trip is a failed watch even once the cell is safely back on db.
console.log(JSON.stringify({ event: 'orca_relay_reserve_watch_verdict', mode: values.mode, verdict: values.verdict }))
process.exitCode = 1
} else {
throw new Error('command must be watch, outcome, flip-back or alarm')
}
} catch (error) {
console.log(
JSON.stringify({
event: 'orca_relay_reserve_watch_failed',
message: error instanceof Error ? error.message : String(error)
})
)
process.exitCode = 1
}
}
@@ -0,0 +1,958 @@
import assert from 'node:assert/strict'
import { readFileSync } from 'node:fs'
import { mkdtemp, readFile, rm, writeFile } from 'node:fs/promises'
import { tmpdir } from 'node:os'
import { join } from 'node:path'
import { test } from 'node:test'
import {
evaluateWatchSample,
initialWatchState,
measuredBackground
} from './relay-reserve-watch-rules.mjs'
import {
ALARM_EVENT,
ALARM_LOG_NAME,
FLIP_BACK_ATTEMPTS,
FLIP_BACK_RUNTIME_ATTEMPTS,
flipBack,
parseWatchArguments,
parseWatchSegment,
raiseAlarm,
readDirector503Minutes,
readSeatBehindRowSample,
recordOutcome,
rolloutLeaseRefusal,
watchSegment
} from './watch-relay-reserve-cell.mjs'
import { readRelayWorkflow } from './relay-repository.mjs'
const CELL = 'production-gce-c26'
const START = Date.parse('2026-10-14T12:00:00Z')
const MINUTE = 60_000
const LIMIT = { unverifiableLimit: 3 }
const healthyCell = (overrides = {}) => ({
ok: true,
admitModeConfigured: 'reserve',
admitModeEffective: 'reserve',
draining: false,
controls: 1_000,
enforcedUnits: 1_100,
hardCap: 2_000,
...overrides
})
const minutesBefore = (at, count) =>
Array.from({ length: count }, (_, index) =>
new Date(Math.floor(at / MINUTE) * MINUTE - (count + 3 - index) * MINUTE).toISOString().slice(0, 16)
)
const quiet503 = (at, perMinute = 10) => {
const minutes = minutesBefore(at, 3)
return { ok: true, minutes, perMinute: Object.fromEntries(minutes.map((minute) => [minute, perMinute])), publishedThrough: minutes.at(-1) }
}
const sampleAt = (at, overrides = {}) => ({
at,
cell: healthyCell(),
director503: quiet503(at),
ledger: { ok: true, unwrittenRows: 0, directors: 5 },
seatBehindRow: { ok: true, reports: [] },
...overrides
})
const freshState = (overrides = {}) => ({
...initialWatchState({ cellId: CELL, startedAt: START, durationMinutes: 60, background503PerMinute: 10 }),
...overrides
})
// Runs samples one minute apart; returns every result.
function run(samples, state = freshState()) {
const results = []
for (const sample of samples) {
const result = evaluateWatchSample(state, sample, LIMIT)
results.push(result)
state = result.state
if (state.state !== 'watching') break
}
return results
}
test('a healthy cell keeps watching and completes at the deadline', () => {
const results = run(Array.from({ length: 61 }, (_, minute) => sampleAt(START + minute * MINUTE)))
assert.equal(results.length, 61)
assert.ok(results.slice(0, 60).every((result) => result.state.state === 'watching'))
assert.equal(results.at(-1).state.state, 'completed')
const line = JSON.parse(results[0].line)
assert.equal(line.event, 'orca_relay_reserve_watch_sample')
assert.deepEqual(Object.keys(line.rules), ['deadMan', 'overrun', 'director503', 'duplicateSeat', 'hostDrop', 'ledgerDrift'])
})
test('503s trip only after three complete minutes over max(1.5x background, background + 20)', () => {
// Background 100: the line is 150. Two minutes over and one under is not a trip.
const state = freshState({ background: { medianPerMinute: 100, source: 'input' } })
const series = (counts) => {
const minutes = minutesBefore(START, 3)
return {
ok: true,
minutes,
perMinute: Object.fromEntries(minutes.map((minute, index) => [minute, counts[index]])),
publishedThrough: minutes.at(-1)
}
}
const twoOver = evaluateWatchSample(state, sampleAt(START, { director503: series([151, 140, 200]) }), LIMIT)
assert.equal(twoOver.state.state, 'watching')
const atLine = evaluateWatchSample(state, sampleAt(START, { director503: series([150, 150, 150]) }), LIMIT)
assert.equal(atLine.state.state, 'watching')
const threeOver = evaluateWatchSample(state, sampleAt(START, { director503: series([151, 160, 170]) }), LIMIT)
assert.equal(threeOver.state.state, 'tripped')
assert.match(threeOver.state.verdict, /^flip back production-gce-c26: director503: /)
// A zero background still needs 20 a minute, not one 503.
const zero = freshState({ background: { medianPerMinute: 0, source: 'input' } })
assert.equal(evaluateWatchSample(zero, sampleAt(START, { director503: series([5, 5, 5]) }), LIMIT).state.state, 'watching')
assert.equal(evaluateWatchSample(zero, sampleAt(START, { director503: series([21, 21, 21]) }), LIMIT).state.state, 'tripped')
// A published minute with no 503 point had none.
const gap = series([151, 160, 170])
delete gap.perMinute[gap.minutes[1]]
assert.equal(evaluateWatchSample(state, sampleAt(START, { director503: gap }), LIMIT).state.state, 'watching')
})
test('a quiet fleet with no 503 series at all reads zero, not unverifiable', () => {
const minutes = minutesBefore(START, 10)
const quiet = { ok: true, minutes, perMinute: {}, publishedThrough: minutes.at(-1) }
const [result] = run([sampleAt(START, { director503: quiet })], freshState({ background: { medianPerMinute: 0, source: 'measured' } }))
assert.equal(result.rules.director503.status, 'pass')
assert.deepEqual(Object.values(result.rules.director503.recent), [0, 0, 0])
assert.equal(result.state.unverifiableStreak, 0)
assert.deepEqual(measuredBackground({}, minutes, minutes.at(-1)), { medianPerMinute: 0, minutes: 10, source: 'measured' })
})
test('503 minutes past the publishing front are left out, and only no front at all is unverifiable', () => {
const state = freshState({ background: { medianPerMinute: 100, source: 'input' } })
const minutes = minutesBefore(START, 10)
const judge = (director503) => evaluateWatchSample(state, sampleAt(START, { director503 }), LIMIT)
// The front is two minutes behind: the three minutes before it are judged, the two after are not.
const over = Object.fromEntries(minutes.map((minute) => [minute, 500]))
const behind = judge({ ok: true, minutes, perMinute: over, publishedThrough: minutes[7] })
assert.equal(behind.rules.director503.status, 'trip')
assert.deepEqual(Object.keys(behind.rules.director503.recent), minutes.slice(5, 8))
// A sparse 503 series: minutes after its last point but within the front are zero, not late.
const sparse = judge({ ok: true, minutes, perMinute: { [minutes[2]]: 500 }, publishedThrough: minutes.at(-1) })
assert.equal(sparse.rules.director503.status, 'pass')
assert.equal(sparse.state.unverifiableStreak, 0)
// No request series at all.
const empty = judge({ ok: true, minutes, perMinute: {}, publishedThrough: null })
assert.equal(empty.rules.director503.status, 'unverifiable')
assert.match(empty.rules.director503.reason, /request series is empty/)
assert.equal(empty.state.unverifiableStreak, 1)
// A front too far behind to leave three published minutes in the read.
const stale = judge({ ok: true, minutes, perMinute: {}, publishedThrough: minutes[1] })
assert.equal(stale.rules.director503.status, 'unverifiable')
assert.match(stale.rules.director503.reason, new RegExp(`published only through ${minutes[1]}`))
})
const SEAT_EVENT = 'orca_relay_reserve_ledger_seat_behind_row'
const SUMMARY_EVENT = 'orca_relay_reserve_ledger_summary'
const summaryLine = (at, instanceId = 'a') => ({
timestamp: new Date(at).toISOString(),
labels: { instanceId },
jsonPayload: { event: SUMMARY_EVENT, pending: 0, dropped: 0 }
})
// A Cloud Monitoring or Cloud Logging reader over fakes, as the watch builds one.
const fakeReader = ({ fetch: fetchImpl = async () => new Response('{}'), runGcloud = async () => ({ stdout: 'token' }) } = {}) => ({
fetch: fetchImpl,
runGcloud,
retryDelayMs: 0,
readTimeoutMs: 1_000,
now: () => START,
deadlineAt: START + 10_000,
projectId: 'onorca-cloud'
})
test('an unparseable timestamp makes the read unverifiable', async () => {
const badPoint = {
timeSeries: [{ points: [{ interval: { endTime: 'not a time' }, value: { int64Value: '3' } }] }]
}
const read503 = await readDirector503Minutes(
fakeReader({ fetch: async () => new Response(JSON.stringify(badPoint)) }),
{ projectId: 'onorca-cloud', directorService: 'orca-cloud-relay', endedAt: START, minutes: 3 }
)
assert.equal(read503.ok, false)
assert.match(read503.error, /unreadable/)
const seats = await readSeatBehindRowSample(
fakeReader({ runGcloud: async () => ({ stdout: JSON.stringify([summaryLine(START), { timestamp: 'garbage', jsonPayload: { epoch: 1, rowEpoch: 2 } }]) }) }),
{ directorService: 'orca-cloud-relay', cellId: CELL, at: START }
)
assert.equal(seats.ok, false)
assert.match(seats.error, /unparseable timestamp/)
})
test('a seat-behind-row key carries the director instance and cell beside the epochs', async () => {
const entry = (instanceId) => ({ timestamp: new Date(START).toISOString(), labels: { instanceId }, jsonPayload: { event: SEAT_EVENT, epoch: 7, rowEpoch: 8 } })
const read = await readSeatBehindRowSample(
fakeReader({ runGcloud: async () => ({ stdout: JSON.stringify([entry('a'), summaryLine(START), entry('b')]) }) }),
{ directorService: 'orca-cloud-relay', cellId: CELL, at: START }
)
assert.deepEqual(read.reports.map((report) => report.key), [`a/${CELL}/7:8`, `b/${CELL}/7:8`])
})
test('the duplicate read carries a positive control: no fresh ledger summary in it is unverifiable, not zero', async () => {
const filters = []
const readWith = (entries) =>
readSeatBehindRowSample(
fakeReader({ runGcloud: async (args) => (filters.push(args[2]), { stdout: JSON.stringify(entries) }) }),
{ directorService: 'orca-cloud-relay', cellId: CELL, at: START }
)
// One read, one window: the control rides the same filter as the seat lines.
assert.deepEqual(await readWith([summaryLine(START - 30_000)]), { ok: true, reports: [] })
assert.match(filters[0], new RegExp(`\\(\\(jsonPayload\\.event="${SEAT_EVENT}" AND jsonPayload\\.cellId="${CELL}"\\) OR jsonPayload\\.event="${SUMMARY_EVENT}"\\)`))
assert.match(filters[0], /resource\.labels\.service_name="orca-cloud-relay"/)
for (const entries of [[], [summaryLine(START - 10 * MINUTE)]]) {
const blind = await readWith(entries)
assert.equal(blind.ok, false)
assert.match(blind.error, /no fresh ledger summary \(positive control\)/)
}
// Blind is a gap in the sample, which counts toward the unverifiable streak.
const [gap] = run([sampleAt(START, { seatBehindRow: await readWith([]) })])
assert.equal(gap.rules.duplicateSeat.status, 'unverifiable')
assert.equal(gap.state.unverifiableStreak, 1)
})
test('the measured background is the median of the minutes before the flip, published gaps as zero', () => {
const minutes = ['2026-10-14T11:47', '2026-10-14T11:48', '2026-10-14T11:49']
const front = minutes[2]
assert.equal(measuredBackground({ '2026-10-14T11:48': 30 }, minutes, front).medianPerMinute, 0)
assert.equal(measuredBackground({ [minutes[0]]: 10, [minutes[1]]: 30, [minutes[2]]: 20 }, minutes, front).medianPerMinute, 20)
assert.equal(measuredBackground({}, minutes, '2026-10-14T11:52').medianPerMinute, 0)
// Not published through the last minute yet, or no request series: no background yet.
assert.equal(measuredBackground({ [minutes[0]]: 10 }, minutes, minutes[1]), null)
assert.equal(measuredBackground({}, minutes, null), null)
assert.equal(measuredBackground({}, [], front), null)
})
test('any overrun trips at once', () => {
const [result] = run([sampleAt(START, { cell: healthyCell({ enforcedUnits: 2_001 }) })])
assert.equal(result.state.state, 'tripped')
assert.match(result.state.verdict, /overrun: ledger units 2001 over hard cap 2000/)
const [atCap] = run([sampleAt(START, { cell: healthyCell({ enforcedUnits: 2_000 }) })])
assert.equal(atCap.state.state, 'watching')
})
test('a seat reported behind its row again past the grace trips; inside the grace it does not', () => {
const report = (at) => ({ at, key: '7:8' })
const within = run([
sampleAt(START, { seatBehindRow: { ok: true, reports: [report(START - 30_000)] } }),
sampleAt(START + MINUTE, { seatBehindRow: { ok: true, reports: [report(START - 30_000), report(START + 50_000)] } })
])
assert.equal(within.at(-1).state.state, 'watching')
// Carried across samples: the second read no longer holds the first report.
const past = run([
sampleAt(START, { seatBehindRow: { ok: true, reports: [report(START - 30_000)] } }),
sampleAt(START + 2 * MINUTE, { seatBehindRow: { ok: true, reports: [report(START + 70_000)] } })
])
assert.equal(past.at(-1).state.state, 'tripped')
assert.match(past.at(-1).state.verdict, /duplicateSeat: a seat behind its ledger row \(7:8\)/)
// Another seat's report is not the same seat.
const other = run([
sampleAt(START, { seatBehindRow: { ok: true, reports: [report(START - 30_000)] } }),
sampleAt(START + 2 * MINUTE, { seatBehindRow: { ok: true, reports: [{ at: START + 70_000, key: '3:4' }] } })
])
assert.equal(other.at(-1).state.state, 'watching')
})
test('a host drop over 5% in 5 minutes trips outside a drain only', () => {
const controls = [1_000, 990, 980, 960, 949]
const samples = (draining) =>
controls.map((count, minute) =>
sampleAt(START + minute * MINUTE, { cell: healthyCell({ controls: count, draining: draining && minute === 2 }) })
)
assert.equal(run(samples(false)).at(-1).state.state, 'tripped')
assert.match(run(samples(false)).at(-1).state.verdict, /hostDrop: connected hosts fell 1000 -> 949/)
assert.equal(run(samples(true)).at(-1).state.state, 'watching')
// A drop spread over more than 5 minutes is not one.
const slow = [1_000, 990, 980, 970, 960, 955, 950].map((count, minute) =>
sampleAt(START + minute * MINUTE, { cell: healthyCell({ controls: count }) })
)
assert.equal(run(slow).at(-1).state.state, 'watching')
// Under the floor on a nearly empty cell: 100 -> 92 is 8%, but only 8 hosts.
const small = [100, 92].map((count, minute) => sampleAt(START + minute * MINUTE, { cell: healthyCell({ controls: count }) }))
assert.equal(run(small).at(-1).state.state, 'watching')
})
test('ledger drift over 0.5% trips once it has lasted 2 minutes', () => {
const drift = (rows) => ({ ok: true, unwrittenRows: rows, directors: 5 })
const brief = run([6, 6, 0, 6].map((rows, minute) => sampleAt(START + minute * MINUTE, { ledger: drift(rows) })))
assert.equal(brief.at(-1).state.state, 'watching')
const sustained = run([6, 6, 6].map((rows, minute) => sampleAt(START + minute * MINUTE, { ledger: drift(rows) })))
assert.equal(sustained.length, 3)
assert.equal(sustained.at(-1).state.state, 'tripped')
assert.match(sustained.at(-1).state.verdict, /ledgerDrift: ledger drift 0\.60% for 120 s/)
const atLine = run([5, 5, 5, 5].map((rows, minute) => sampleAt(START + minute * MINUTE, { ledger: drift(rows) })))
assert.equal(atLine.at(-1).state.state, 'watching')
})
test('a tripped dead-man is a trip: Postgres still records reserve until a db write', () => {
const [result] = run([sampleAt(START, { cell: healthyCell({ admitModeEffective: 'db' }) })])
assert.equal(result.state.state, 'tripped')
assert.match(result.state.verdict, /deadMan: the cell tripped its dead-man/)
})
test('unreadable data is never healthy: N samples in a row with any gap trip', () => {
const unreadable = { ok: false, error: 'cell runtime status returned 502' }
const gaps = [
{ cell: unreadable },
{ ledger: { ok: false, error: 'no placing director logged a ledger summary' } },
{ director503: { ok: false, error: 'director 503 metric read failed', perMinute: {}, minutes: [], publishedThrough: null } }
]
const results = run(gaps.map((gap, minute) => sampleAt(START + minute * MINUTE, gap)))
assert.deepEqual(results.map((result) => result.state.unverifiableStreak), [1, 2, 3])
assert.equal(results.at(-1).state.state, 'tripped')
assert.match(results.at(-1).state.verdict, /unverifiable: 3 samples in a row could not read director503/)
// One whole sample resets the streak.
const reset = run(
[gaps[0], {}, gaps[0], gaps[0]].map((gap, minute) => sampleAt(START + minute * MINUTE, gap))
)
assert.deepEqual(reset.map((result) => result.state.unverifiableStreak), [1, 0, 1, 2])
assert.equal(reset.at(-1).state.state, 'watching')
// No background yet is a gap too.
const noBackground = freshState({ background: null })
assert.equal(evaluateWatchSample(noBackground, sampleAt(START), LIMIT).state.unverifiableStreak, 1)
// A measured trip still wins over a gap elsewhere.
const [both] = run([sampleAt(START, { cell: healthyCell({ enforcedUnits: 2_500 }), ledger: gaps[1].ledger })])
assert.equal(both.state.state, 'tripped')
assert.match(both.state.verdict, /overrun/)
})
test('a cell no longer in reserve stops the watch without a write; one never in reserve is refused', () => {
const dbCell = healthyCell({ admitModeConfigured: 'db', admitModeEffective: 'reserve' })
const later = run([sampleAt(START), sampleAt(START + MINUTE, { cell: dbCell })])
assert.equal(later.at(-1).state.state, 'stopped')
assert.match(later.at(-1).state.verdict, /is not in reserve mode \(switch file says db\)/)
// Never reserve within the wait: refused, which the workflow does not flip back.
const never = run(Array.from({ length: 12 }, (_, minute) => sampleAt(START + minute * MINUTE, { cell: dbCell })))
assert.equal(never.at(-1).state.state, 'refused')
assert.equal(never.length, 11)
assert.match(never.at(-1).state.verdict, /did not report reserve mode within 10 min \(switch file says db\)/)
})
test('a watch dispatched before the reserve write applied waits for it, then judges as usual', () => {
const dbCell = healthyCell({ admitModeConfigured: 'db', admitModeEffective: 'db' })
const results = run([
sampleAt(START, { cell: dbCell, ledger: { ok: false, error: 'not yet' } }),
sampleAt(START + MINUTE, { cell: dbCell }),
sampleAt(START + 2 * MINUTE),
sampleAt(START + 3 * MINUTE, { cell: healthyCell({ enforcedUnits: 2_500 }) })
])
// Waiting samples judge nothing: not a dead-man trip on a db cell, not a gap.
assert.deepEqual(results.slice(0, 2).map((result) => result.state.state), ['watching', 'watching'])
assert.equal(results[0].rules.reserve.status, 'pending')
assert.deepEqual(Object.keys(results[0].rules), ['reserve'])
assert.deepEqual(results.map((result) => result.state.unverifiableStreak), [0, 0, 0, 0])
assert.equal(results[2].state.reserveSeenAt, START + 2 * MINUTE)
assert.equal(results[2].rules.overrun.status, 'pass')
assert.equal(results[3].state.state, 'tripped')
// Once seen in reserve, a later db reads as a hand flip back, not a refusal.
const after = run([sampleAt(START + 2 * MINUTE), sampleAt(START + 3 * MINUTE, { cell: dbCell })], results[0].state)
assert.equal(after.at(-1).state.state, 'stopped')
})
const watchValues = (overrides = {}) => ({
mode: 'dry-run',
'cell-id': CELL,
'cell-origin': 'https://c26.relay.onorca.dev',
'project-id': 'onorca-cloud',
'director-origin': 'https://relay.onorca.dev',
'director-service': 'orca-cloud-relay',
'duration-minutes': '120',
'segment-minutes': '55',
'unverifiable-limit': '3',
'background-503-per-minute': '',
'flipped-at': new Date(START - 5 * MINUTE).toISOString(),
'state-file': '/unused',
...overrides
})
const parseAt = (values) => parseWatchArguments(values, START)
test('watch arguments reuse the flag tool checks, so a write watch needs its confirmation up front', () => {
assert.equal(parseAt(watchValues()).background503PerMinute, null)
assert.equal(parseAt(watchValues()).flippedAt, START - 5 * MINUTE)
assert.equal(parseAt(watchValues({ 'background-503-per-minute': '12.5', 'flipped-at': '' })).background503PerMinute, 12.5)
assert.throws(() => parseAt(watchValues({ mode: 'write' })), /WRITE_RELAY_CELL_FLAGS production-gce-c26/)
assert.doesNotThrow(() => parseAt(watchValues({ mode: 'write', confirmation: `WRITE_RELAY_CELL_FLAGS ${CELL}` })))
assert.throws(() => parseAt(watchValues({ 'cell-origin': 'https://c27.relay.onorca.dev' })), /names another cell/)
assert.throws(() => parseAt(watchValues({ 'duration-minutes': '301' })), /duration-minutes/)
assert.throws(() => parseAt(watchValues({ 'segment-minutes': '56' })), /segment-minutes/)
assert.throws(() => parseAt(watchValues({ 'background-503-per-minute': '-1' })), /background/)
})
test('the 503 background needs flipped-at or an explicit value; flipped-at must be a recent zoned time', () => {
assert.throws(() => parseAt(watchValues({ 'flipped-at': '' })), /--flipped-at .* or --background-503-per-minute is required/)
assert.throws(() => parseAt(watchValues({ 'flipped-at': '2026-10-14T11:55:00' })), /ISO time with a zone/)
assert.throws(() => parseAt(watchValues({ 'flipped-at': '2026-10-14T12:01:00Z' })), /in the future/)
assert.throws(() => parseAt(watchValues({ 'flipped-at': '2026-10-13T11:00:00Z' })), /more than 24 hours/)
assert.equal(parseAt(watchValues({ 'flipped-at': '2026-10-14T07:55:00-04:00' })).flippedAt, START - 5 * MINUTE)
})
// A cell, Cloud Monitoring and Cloud Logging, answering from `script` per sample.
function fakeSources({
cell = () => ({}),
// Logged at each sample's minute, so it stays fresh for the positive control.
ledger = (sample) => [{ timestamp: new Date(START + (sample - 1) * MINUTE).toISOString(), labels: { instanceId: 'a' }, jsonPayload: { pending: 0, dropped: 0 } }],
per503 = () => 10,
// Requests of every other code per minute; zero is a minute with no traffic at all.
perOther = () => 1_000,
seatControl = true,
rolloutLease = null
} = {}) {
let samples = 0
const monitoringSpans = []
const fetchImpl = async (url) => {
const text = String(url)
if (text.endsWith('/v1/admin/runtime-status')) {
samples += 1
const overrides = cell(samples)
return new Response(
JSON.stringify({
role: 'cell',
cellId: CELL,
draining: false,
flagsApplied: { generation: 4, flags: { admitMode: 'reserve', readinessLocal: true } },
admitModeEffective: 'reserve',
connectionCapacity: { hardCap: 2_000 },
runtime: { controls: 1_000, enforcedConnectionUnits: 1_100 },
...overrides
})
)
}
if (text.startsWith('https://monitoring.googleapis.com/')) {
const params = new URL(text).searchParams
const span = { startedAt: Date.parse(params.get('interval.startTime')), endedAt: Date.parse(params.get('interval.endTime')) }
monitoringSpans.push(span)
assert.equal(params.get('aggregation.groupByFields'), 'metric.label."response_code"')
assert.doesNotMatch(params.get('filter'), /response_code/)
// Cloud Monitoring returns no point for a minute with no requests of that code.
const seriesOf = (code, count) => {
const points = []
for (let minute = span.startedAt; minute < span.endedAt; minute += MINUTE) {
if (count(minute) > 0) {
points.push({ interval: { endTime: new Date(minute + MINUTE).toISOString() }, value: { int64Value: String(count(minute)) } })
}
}
return points.length === 0 ? [] : [{ metric: { labels: { response_code: code } }, points }]
}
return new Response(JSON.stringify({ timeSeries: [...seriesOf('200', perOther), ...seriesOf('503', per503)] }))
}
throw new Error(`unexpected fetch ${text}`)
}
const runGcloud = async (args) => {
if (args[0] === 'auth') return { stdout: 'token' }
const filter = args[2]
const summaries = ledger(samples).map((entry) => ({ ...entry, jsonPayload: { ...entry.jsonPayload, event: SUMMARY_EVENT } }))
if (filter.includes(SEAT_EVENT)) return { stdout: JSON.stringify(seatControl ? summaries : []) }
if (filter.includes(SUMMARY_EVENT)) return { stdout: JSON.stringify(ledger(samples)) }
return { stdout: '[]' }
}
return { fetchImpl, runGcloud, monitoringSpans, readRolloutLease: async () => rolloutLease }
}
test('a segment samples once a minute, carries state to the next segment, and stops on a trip', async () => {
const directory = await mkdtemp(join(tmpdir(), 'relay-reserve-watch-'))
try {
let clock = START
const lines = []
const config = parseAt(
watchValues({ 'state-file': join(directory, 'state.json'), 'github-output': join(directory, 'out'), 'segment-minutes': '3' })
)
const sources = fakeSources({ cell: (sample) => (sample === 5 ? { runtime: { controls: 1_000, enforcedConnectionUnits: 2_001 } } : {}) })
const dependencies = {
...sources,
idToken: 'id',
retryDelayMs: 0,
now: () => clock,
sleep: async (ms) => { clock += ms },
log: (line) => lines.push(JSON.parse(line))
}
const first = await watchSegment(config, dependencies)
assert.equal(first.state, 'watching')
assert.equal(lines.length, 3)
assert.equal(first.background.source, 'measured')
assert.equal(await readFile(join(directory, 'out'), 'utf8'), 'state=watching\nverdict=\n')
const second = await watchSegment(config, dependencies)
assert.equal(second.state, 'tripped')
assert.equal(second.samples, 5)
assert.deepEqual(lines.map((line) => line.sample), [1, 2, 3, 4, 5])
assert.equal(lines.at(-1).rules.overrun.status, 'trip')
assert.match(await readFile(join(directory, 'out'), 'utf8'), /state=tripped\nverdict=flip back production-gce-c26: overrun: /)
} finally {
await rm(directory, { recursive: true, force: true })
}
})
test('a sample that cannot read its sources counts as unverifiable rather than crashing the watch', async () => {
const directory = await mkdtemp(join(tmpdir(), 'relay-reserve-watch-'))
try {
let clock = START
const config = parseAt(watchValues({ 'state-file': join(directory, 'state.json'), 'segment-minutes': '10' }))
const sources = fakeSources({ ledger: () => [] })
const state = await watchSegment(config, {
...sources,
idToken: 'id',
retryDelayMs: 0,
now: () => clock,
sleep: async (ms) => { clock += ms },
log: () => {}
})
assert.equal(state.state, 'tripped')
assert.equal(state.samples, 3)
// No summary also blinds the duplicate rule, whose positive control it is.
assert.match(state.verdict, /unverifiable: 3 samples in a row could not read duplicateSeat, ledgerDrift/)
} finally {
await rm(directory, { recursive: true, force: true })
}
})
test('a watch that ended without a verdict records failed, which the workflow flips back', async () => {
const directory = await mkdtemp(join(tmpdir(), 'relay-reserve-watch-'))
try {
const output = join(directory, 'out')
assert.equal((await recordOutcome(join(directory, 'missing.json'), output)).state, 'failed')
await writeFile(join(directory, 'watching.json'), JSON.stringify(freshState()))
assert.equal((await recordOutcome(join(directory, 'watching.json'), output)).state, 'failed')
await writeFile(join(directory, 'tripped.json'), JSON.stringify(freshState({ state: 'tripped', verdict: 'flip back x:\ny' })))
assert.equal((await recordOutcome(join(directory, 'tripped.json'), output)).state, 'tripped')
assert.match(await readFile(output, 'utf8'), /state=tripped\nverdict=flip back x: y\n$/)
} finally {
await rm(directory, { recursive: true, force: true })
}
})
// Google Storage and the director, as far as the flag tool's flip back reaches them. `onUpload`
// returns 'conflict' to play another writer landing first, optionally with its own admitMode.
function fakeFlipBack({ generation = '7', onUpload = () => 'ok', cellAnswers = true } = {}) {
const calls = []
let uploads = 0
let object = { generation: Number(generation), flags: { admitMode: 'reserve', readinessLocal: true } }
let applied = object
const fetchImpl = async (url, init = {}) => {
const text = String(url)
calls.push({ url: text, method: init.method ?? 'GET', body: init.body })
if (text.includes('/upload/storage/v1/')) {
uploads += 1
assert.match(text, new RegExp(`ifGenerationMatch=${object.generation}$`))
const outcome = onUpload(uploads)
if (outcome !== 'ok') {
object = { generation: object.generation + 1, flags: { ...object.flags, admitMode: outcome.admitMode ?? 'reserve' } }
applied = object
return new Response('', { status: 412 })
}
object = { generation: object.generation + 1, flags: JSON.parse(init.body.split('\r\n')[7]).flags }
applied = object
return new Response(JSON.stringify({ generation: String(object.generation) }))
}
if (text.includes('?alt=media')) {
return new Response(JSON.stringify({ v: 1, cellId: CELL, flags: object.flags }))
}
if (text.includes('/storage/v1/b/')) return new Response(JSON.stringify({ generation: String(object.generation) }))
if (text.endsWith('/v1/admin/runtime-status')) {
if (!cellAnswers) return new Response('', { status: 502 })
return new Response(
JSON.stringify({
role: 'cell',
cellId: CELL,
flagsApplied: applied,
supportedFlags: {
admitMode: { type: 'enum', values: ['db', 'reserve'] },
readinessLocal: { type: 'boolean' }
},
admitModeEffective: applied.flags.admitMode,
runtime: { controls: 10 }
})
)
}
if (text.endsWith('/v1/admin/cell-admit-mode')) {
const admitMode = JSON.parse(init.body).admitMode
return new Response(JSON.stringify({ v: 1, cellId: CELL, admitMode: admitMode ?? 'reserve', heartbeatFresh: true }))
}
throw new Error(`unexpected fetch ${text}`)
}
return { fetchImpl, calls, uploads: () => uploads }
}
const flipDependencies = (fetchImpl, lines, sleeps = []) => {
let clock = START
return {
fetchImpl,
accessToken: 'access',
idToken: 'id',
audit: { writtenBy: 'reserve-watch/test', runId: '1', runAttempt: '1' },
now: () => clock,
sleep: async (ms) => { sleeps.push(ms); clock += ms },
log: (line) => lines.push(JSON.parse(line))
}
}
const flipValues = (overrides = {}) => ({
mode: 'write',
'cell-id': CELL,
'cell-origin': 'https://c26.relay.onorca.dev',
'project-id': 'onorca-cloud',
'director-origin': 'https://relay.onorca.dev',
confirmation: `WRITE_RELAY_CELL_FLAGS ${CELL}`,
...overrides
})
test('the flip back is the flag tool write: admitMode=db at the generation just read, then Postgres db', async () => {
const { fetchImpl, calls } = fakeFlipBack()
const lines = []
const result = await flipBack(flipValues(), flipDependencies(fetchImpl, lines))
assert.equal(result.written, true)
const upload = calls.find((call) => call.url.includes('/upload/storage/v1/'))
assert.match(upload.body, /"flags":\{"admitMode":"db","readinessLocal":true\}/)
assert.ok(calls.some((call) => call.url.endsWith('/v1/admin/cell-admit-mode') && JSON.parse(call.body).admitMode === 'db'))
assert.deepEqual(lines.at(-1), {
event: 'orca_relay_reserve_watch_flip_back',
mode: 'write',
cellId: CELL,
written: true,
generation: '8'
})
})
test('a dry-run flip back plans the write and writes nothing', async () => {
const { fetchImpl, calls } = fakeFlipBack()
const lines = []
const result = await flipBack(flipValues({ mode: 'dry-run', confirmation: '' }), {
fetchImpl,
accessToken: 'access',
idToken: 'id',
audit: {},
sleep: async () => {},
log: (line) => lines.push(JSON.parse(line))
})
assert.equal(result.written, false)
assert.ok(!calls.some((call) => call.url.includes('/upload/')))
assert.ok(!calls.some((call) => call.url.endsWith('/v1/admin/cell-admit-mode') && JSON.parse(call.body).admitMode))
assert.equal(lines.find((line) => line.event === 'orca_relay_cell_flags_plan').desired.flags.admitMode, 'db')
})
test('a write flip back without the typed confirmation is refused before any read', async () => {
const { fetchImpl, calls } = fakeFlipBack()
await assert.rejects(
flipBack(flipValues({ confirmation: '' }), { fetchImpl, accessToken: 'a', idToken: 'i', audit: {}, log: () => {} }),
/WRITE_RELAY_CELL_FLAGS production-gce-c26/
)
assert.equal(calls.length, 0)
})
test('a generation conflict is re-read and retried while the switch file still says reserve', async () => {
const { fetchImpl, uploads } = fakeFlipBack({ onUpload: (n) => (n < 3 ? { admitMode: 'reserve' } : 'ok') })
const lines = []
const sleeps = []
const result = await flipBack(flipValues(), flipDependencies(fetchImpl, lines, sleeps))
assert.equal(result.written, true)
assert.equal(uploads(), 3)
assert.deepEqual(lines.filter((line) => line.event === 'orca_relay_reserve_watch_flip_back_conflict').map((line) => line.attempt), [1, 2])
assert.deepEqual(sleeps.slice(0, 1), [2_000])
assert.equal(lines.at(-1).generation, '10')
})
test('a conflict whose writer already flipped the cell to db ends the flip back without a write', async () => {
const { fetchImpl, uploads } = fakeFlipBack({ onUpload: () => ({ admitMode: 'db' }) })
const lines = []
const result = await flipBack(flipValues(), flipDependencies(fetchImpl, lines))
assert.equal(uploads(), 1)
assert.equal(result.written, false)
assert.equal(result.alreadyDb, true)
assert.deepEqual(lines.at(-1), { event: 'orca_relay_reserve_watch_flip_back', mode: 'write', cellId: CELL, written: false, generation: '8', alreadyDb: true })
})
test('conflicts past the retry bound fail the flip back', async () => {
const { fetchImpl, uploads } = fakeFlipBack({ onUpload: () => ({ admitMode: 'reserve' }) })
await assert.rejects(flipBack(flipValues(), flipDependencies(fetchImpl, [])), /object changed since expected-generation/)
assert.equal(uploads(), FLIP_BACK_ATTEMPTS)
})
test('an unreachable cell fails with the exact break-glass inputs and writes nothing', async () => {
const { fetchImpl, uploads } = fakeFlipBack({ cellAnswers: false })
const lines = []
await assert.rejects(
flipBack(flipValues(), flipDependencies(fetchImpl, lines)),
(error) => {
assert.match(error.message, /production-gce-c26 does not answer runtime-status \(cell runtime status returned 502\)/)
assert.match(error.message, /set=admitMode=default, break-glass=BREAK GLASS production-gce-c26, expected-generation=7/)
return true
}
)
assert.equal(uploads(), 0)
assert.deepEqual(lines.at(-1).inputs, {
mode: 'write',
'cell-id': CELL,
set: 'admitMode=default',
'break-glass': `BREAK GLASS ${CELL}`,
'expected-generation': '7',
confirmation: `WRITE_RELAY_CELL_FLAGS ${CELL}`
})
})
test('the 503 background is the 10 minutes before flipped-at, read once they are published', async () => {
const directory = await mkdtemp(join(tmpdir(), 'relay-reserve-watch-'))
try {
let clock = START
// Flipped one minute ago: the minutes before it are not published until 3 minutes after it.
const flippedAt = START - MINUTE + 20_000
const config = parseAt(
watchValues({ 'state-file': join(directory, 'state.json'), 'segment-minutes': '3', 'flipped-at': new Date(flippedAt).toISOString() })
)
const sources = fakeSources({ per503: (minute) => (minute < START - MINUTE ? 4 : 40) })
const lines = []
const state = await watchSegment(config, {
...sources,
idToken: 'id',
retryDelayMs: 0,
now: () => clock,
sleep: async (ms) => { clock += ms },
log: (line) => lines.push(JSON.parse(line))
})
// Pending until then, and pending is not a gap: the streak stays at zero.
assert.deepEqual(lines.map((line) => line.rules.director503.status), ['pending', 'pending', 'pass'])
assert.match(lines[0].rules.director503.reason, /background before the flip is not published yet/)
assert.deepEqual(lines.map((line) => line.unverifiableStreak), [0, 0, 0])
const baseline = sources.monitoringSpans.find((span) => span.endedAt === START - MINUTE)
assert.equal(baseline.startedAt, START - 11 * MINUTE)
assert.deepEqual(state.background, { medianPerMinute: 4, minutes: 10, source: 'measured' })
// An explicit value overrides the measurement.
const explicit = initialWatchState({ cellId: CELL, startedAt: START, durationMinutes: 60, background503PerMinute: 9, flippedAt })
assert.deepEqual(explicit.background, { medianPerMinute: 9, source: 'input' })
} finally {
await rm(directory, { recursive: true, force: true })
}
})
test('a quiet fleet with zero director 503s watches on and never trips', async () => {
const directory = await mkdtemp(join(tmpdir(), 'relay-reserve-watch-'))
try {
let clock = START
const config = parseAt(
watchValues({
'state-file': join(directory, 'state.json'),
'segment-minutes': '20',
'flipped-at': new Date(START - 2 * MINUTE).toISOString()
})
)
const lines = []
const state = await watchSegment(config, {
...fakeSources({ per503: () => 0 }),
idToken: 'id',
retryDelayMs: 0,
now: () => clock,
sleep: async (ms) => { clock += ms },
log: (line) => lines.push(JSON.parse(line))
})
assert.equal(state.state, 'watching')
assert.equal(lines.length, 20)
assert.deepEqual(state.background, { medianPerMinute: 0, minutes: 10, source: 'measured' })
assert.ok(lines.slice(1).every((line) => line.rules.director503.status === 'pass'))
assert.ok(lines.every((line) => line.unverifiableStreak === 0))
} finally {
await rm(directory, { recursive: true, force: true })
}
})
test('no request series at all is unverifiable and trips at the limit', async () => {
const directory = await mkdtemp(join(tmpdir(), 'relay-reserve-watch-'))
try {
let clock = START
const config = parseAt(watchValues({ 'state-file': join(directory, 'state.json'), 'segment-minutes': '10', 'background-503-per-minute': '0', 'flipped-at': '' }))
const state = await watchSegment(config, {
...fakeSources({ per503: () => 0, perOther: () => 0 }),
idToken: 'id',
retryDelayMs: 0,
now: () => clock,
sleep: async (ms) => { clock += ms },
log: () => {}
})
assert.equal(state.state, 'tripped')
assert.match(state.verdict, /unverifiable: 3 samples in a row could not read director503/)
} finally {
await rm(directory, { recursive: true, force: true })
}
})
test('a later segment judges flipped-at against the watch start, so a long watch does not age it out', async () => {
const directory = await mkdtemp(join(tmpdir(), 'relay-reserve-watch-'))
try {
const stateFile = join(directory, 'state.json')
const values = watchValues({ 'state-file': stateFile, 'flipped-at': new Date(START - 23 * 60 * MINUTE).toISOString() })
const later = START + 4 * 60 * MINUTE
await writeFile(stateFile, JSON.stringify(freshState()))
assert.equal((await parseWatchSegment(values, later)).flippedAt, START - 23 * 60 * MINUTE)
// The first segment (no state file yet) still refuses it, and records refused.
await rm(stateFile)
await assert.rejects(parseWatchSegment(values, later), /more than 24 hours/)
assert.equal(JSON.parse(await readFile(stateFile, 'utf8')).state, 'refused')
} finally {
await rm(directory, { recursive: true, force: true })
}
})
test('a corrupt state file fails the segment, never refuses or restarts it, and the outcome reads failed', async () => {
const directory = await mkdtemp(join(tmpdir(), 'relay-reserve-watch-'))
try {
const stateFile = join(directory, 'state.json')
const output = join(directory, 'out')
const values = watchValues({ 'state-file': stateFile })
for (const corrupt of ['null', '[]', '7', JSON.stringify({ state: 'watching', cellId: 'c7' })]) {
await writeFile(stateFile, corrupt)
await assert.rejects(parseWatchSegment(values, START), /state file/)
assert.equal(await readFile(stateFile, 'utf8'), corrupt)
assert.equal((await recordOutcome(stateFile, output)).state, 'failed')
}
} finally {
await rm(directory, { recursive: true, force: true })
}
})
test('a slow runtime-status reply is retried before the flip back calls for break glass', async () => {
const { fetchImpl: answering, uploads } = fakeFlipBack()
let runtimeCalls = 0
// fetchAdminOnceMore makes two tries per read; the first read's two both fail.
const fetchImpl = async (url, init) => {
if (String(url).endsWith('/v1/admin/runtime-status') && (runtimeCalls += 1) <= 2) return new Response('', { status: 503 })
return answering(url, init)
}
const lines = []
const sleeps = []
const result = await flipBack(flipValues(), flipDependencies(fetchImpl, lines, sleeps))
assert.equal(result.written, true)
assert.equal(uploads(), 1)
assert.deepEqual(lines.filter((line) => line.event === 'orca_relay_reserve_watch_runtime_retry').map((line) => line.attempt), [1])
assert.ok(!lines.some((line) => line.event === 'orca_relay_reserve_watch_break_glass_required'))
assert.ok(sleeps.includes(2_000))
assert.ok(FLIP_BACK_RUNTIME_ATTEMPTS > 1)
})
const watchWorkflow = readRelayWorkflow('operate-relay-production-reserve-watch.yml')
const jobOf = (name) => {
const start = watchWorkflow.indexOf(`\n ${name}:\n`)
assert.notEqual(start, -1, `job ${name} is missing`)
const next = watchWorkflow.slice(start + 1).search(/\n [a-z-]+:\n/)
return watchWorkflow.slice(start, next === -1 ? undefined : start + 1 + next)
}
test('workflow: neither job takes the flag workflow group, which would let a newer run cancel a pending flip back', () => {
assert.doesNotMatch(watchWorkflow, /group: relay-production-cell-flags/)
assert.doesNotMatch(jobOf('flip-back'), /^\s+concurrency:/m)
assert.doesNotMatch(jobOf('watch'), /^\s+concurrency:/m)
})
test('workflow: a watch that failed or was cancelled without a verdict flips back too', () => {
const flip = jobOf('flip-back')
// A cancel re-evaluates each step: every flip-back step must run on always() too.
const steps = flip.slice(flip.indexOf('\n steps:\n')).split(/\n - /).slice(1)
assert.equal(steps.length, 7)
for (const step of steps) assert.match(step, /\n\s+if: \$\{\{ always\(\) \}\}/, step.split('\n')[0])
assert.match(flip, /if: \$\{\{ always\(\) && vars\.ORCA_CLOUD_OPERATIONS_ENABLED == 'true' && needs\.watch\.result != 'skipped'/)
assert.match(flip, /!contains\(fromJSON\('\["completed","stopped","refused"\]'\), needs\.watch\.outputs\.state\)/)
// Every segment checks its ID token's shape, and runs the one shared command.
const segments = watchWorkflow.match(/run: bash -c "\$\{WATCH_SEGMENT\}"/g) ?? []
assert.equal(segments.length, 6)
assert.match(jobOf('watch'), /process\.env\.ORCA_RELAY_ADMIN_ID_TOKEN/)
})
test('a live rollout lease refuses the watch before its first sample; an expired one does not', async () => {
const directory = await mkdtemp(join(tmpdir(), 'relay-reserve-watch-'))
try {
const stateFile = join(directory, 'state.json')
const output = join(directory, 'out')
const config = parseAt(watchValues({ 'state-file': stateFile, 'github-output': output, 'segment-minutes': '1' }))
const lease = (expiresAt) => ({ record: { expires_at: expiresAt }, holder: 'Deploy Relay Production Same-Cap (run 9)' })
let clock = START
const dependencies = (rolloutLease) => ({
...fakeSources({ rolloutLease }),
idToken: 'id',
retryDelayMs: 0,
now: () => clock,
sleep: async (ms) => { clock += ms },
log: () => {}
})
const held = await watchSegment(config, dependencies(lease(START + MINUTE)))
assert.equal(held.state, 'refused')
assert.match(held.verdict, /a rollout holds the Cloud SQL rollout lease until .*Same-Cap \(run 9\)/)
assert.equal(JSON.parse(await readFile(stateFile, 'utf8')).state, 'refused')
assert.match(await readFile(output, 'utf8'), /^state=refused\n/)
await rm(stateFile)
assert.equal((await watchSegment(config, dependencies(lease(START - 1)))).state, 'watching')
// Only the first segment checks: a later one carries on from its state file.
assert.equal((await watchSegment(config, dependencies(lease(clock + MINUTE)))).state, 'watching')
// A lease it cannot read refuses too, as the lease action fails closed.
assert.match(await rolloutLeaseRefusal(async () => { throw new Error('403') }, START), /lease is unreadable \(403\)/)
assert.equal(await rolloutLeaseRefusal(async () => null, START), null)
} finally {
await rm(directory, { recursive: true, force: true })
}
})
const stepOf = (job, name) => {
const text = jobOf(job)
const start = text.indexOf(`- name: ${name}\n`)
assert.notEqual(start, -1, `step ${name} is missing`)
const end = text.indexOf('\n - ', start + 1)
return text.slice(start, end === -1 ? undefined : end)
}
const ALARM_COMMAND = /node dev\/scripts\/watch-relay-reserve-cell\.mjs alarm --kind KIND \\\n\s+--mode "\$\{MODE\}" --cell-id "\$\{CELL_ID\}" --project-id "\$\{GCP_PROJECT_ID\}" --verdict "\$\{VERDICT_VAR\}"/
const alarmCommand = (kind, verdict) => new RegExp(ALARM_COMMAND.source.replace('KIND', kind).replace('VERDICT_VAR', verdict))
test('workflow: a flip back that did not land and a refused watch both raise the alarm', () => {
const alarm = stepOf('flip-back', 'Alarm when the flip back did not land')
assert.match(alarm, /if: \$\{\{ always\(\) \}\}/)
assert.match(alarm, /grep -qs '"event":"orca_relay_reserve_watch_flip_back"' "\$\{RUNNER_TEMP\}\/relay-reserve-flip-back\.jsonl"/)
assert.match(alarm, alarmCommand('flip-back-failed', 'VERDICT'))
const refused = stepOf('watch', 'Alarm on a refused watch')
assert.match(refused, /if: \$\{\{ always\(\) && steps\.outcome\.outputs\.state == 'refused' \}\}/)
assert.match(refused, /WATCH_VERDICT: \$\{\{ steps\.outcome\.outputs\.verdict \}\}/)
assert.match(refused, alarmCommand('refused', 'WATCH_VERDICT'))
// After the outcome step, so it reads the recorded state.
assert.ok(jobOf('watch').indexOf('- name: Alarm on a refused watch') > jobOf('watch').indexOf('- id: outcome'))
// The flip-back line names only the write's own event, never its conflict retries.
assert.match(readFileSync(new URL('./watch-relay-reserve-cell.mjs', import.meta.url), 'utf8'), /event: 'orca_relay_reserve_watch_flip_back',\n/)
})
test('an alarm is an escaped error annotation everywhere, and in write mode a paging log line', async () => {
const calls = []
const lines = []
const runGcloud = async (args, options) => (calls.push({ args, options }), { stdout: '' })
const alarm = (overrides) =>
raiseAlarm(
{ mode: 'write', cellId: CELL, projectId: 'onorca-cloud', kind: 'refused', reason: '50%\r\nlease held', ...overrides },
{ runGcloud, log: (line) => lines.push(line) }
)
assert.deepEqual(await alarm(), { paged: true })
assert.equal(
lines[0],
`::error title=Reserve watch refused for ${CELL}::${CELL} may be in reserve mode and unwatched: the watch was refused (50%25%0D%0Alease held). ` +
'Rerun it, or flip the cell to db with Operate Relay Production Cell Flags.'
)
assert.deepEqual(calls[0].args, [
'logging', 'write', ALARM_LOG_NAME,
JSON.stringify({ event: ALARM_EVENT, cellId: CELL, kind: 'refused', reason: '50%\r\nlease held' }),
'--payload-type=json', '--severity=ERROR', '--project', 'onorca-cloud'
])
// A dry run never flips back, so its alarm annotates but does not page.
assert.deepEqual(await alarm({ mode: 'dry-run', kind: 'flip-back-failed' }), { paged: false })
assert.equal(calls.length, 1)
assert.match(lines[1], /^::error title=Reserve watch flip-back-failed for production-gce-c26::.*did not land/)
// A title property escapes its own separators too.
await alarm({ mode: 'dry-run', cellId: 'a:b,c' })
assert.match(lines[2], /^::error title=Reserve watch refused for a%3Ab%2Cc::/)
// A failed log write is named, never swallowed silently.
const failed = await raiseAlarm(
{ mode: 'write', cellId: CELL, projectId: 'onorca-cloud', kind: 'flip-back-failed', reason: 'x' },
{ runGcloud: async () => { throw new Error('PERMISSION_DENIED') }, log: (line) => lines.push(line) }
)
assert.deepEqual(failed, { paged: false })
assert.match(lines.at(-1), /^::error title=Reserve watch page failed::.*nothing pages: PERMISSION_DENIED/)
await assert.rejects(alarm({ kind: 'other' }), /--kind must be one of/)
// A missing project still annotates, then names the page it could not send.
const before = calls.length
assert.deepEqual(await alarm({ projectId: undefined }), { paged: false })
assert.equal(calls.length, before)
assert.match(lines.at(-2), /^::error title=Reserve watch refused for /)
assert.match(lines.at(-1), /nothing pages: --project-id is not a GCP project id/)
})
@@ -34,7 +34,7 @@ const EXPECTED_CONDITIONS = {
"assertion.repository == 'stablyai/orca' && assertion.repository_id == '1183888342' && assertion.repository_owner_id == '127256420' && assertion.ref == 'refs/heads/main' && assertion.environment == 'production' && assertion.event_name == 'workflow_dispatch' && assertion.workflow_ref == 'stablyai/orca/.github/workflows/cloud-push-deploy.yml@refs/heads/main' && assertion.job_workflow_ref == 'stablyai/orca/.github/workflows/cloud-push-deploy.yml@refs/heads/main'",
github:
"assertion.repository == 'stablyai/orca' && assertion.repository_id == '1183888342' && assertion.repository_owner_id == '127256420' && assertion.ref == 'refs/heads/main' && assertion.environment == 'production' && ((assertion.workflow_ref == 'stablyai/orca/.github/workflows/cloud-deploy-relay-fence-broker.yml@refs/heads/main' || assertion.workflow_ref == 'stablyai/orca/.github/workflows/cloud-deploy-relay-production-capacity.yml@refs/heads/main' || assertion.workflow_ref == 'stablyai/orca/.github/workflows/cloud-deploy-relay-production-director.yml@refs/heads/main' || assertion.workflow_ref == 'stablyai/orca/.github/workflows/cloud-deploy-relay-production-multi-target.yml@refs/heads/main' || assertion.workflow_ref == 'stablyai/orca/.github/workflows/cloud-deploy-relay-production.yml@refs/heads/main' || assertion.workflow_ref == 'stablyai/orca/.github/workflows/cloud-operate-relay-asia-admission.yml@refs/heads/main' || assertion.workflow_ref == 'stablyai/orca/.github/workflows/cloud-operate-relay-production-cell-flags.yml@refs/heads/main' || assertion.workflow_ref == 'stablyai/orca/.github/workflows/cloud-publish-relay-production.yml@refs/heads/main') || (assertion.workflow_ref == 'stablyai/orca/.github/workflows/cloud-operate-relay-production-rehome.yml@refs/heads/main' && assertion.job_workflow_ref == 'stablyai/orca/.github/workflows/cloud-operate-relay-production-rehome-job.yml@refs/heads/main') || (assertion.workflow_ref == 'stablyai/orca/.github/workflows/cloud-deploy-relay-production-same-cap.yml@refs/heads/main' && (assertion.job_workflow_ref == 'stablyai/orca/.github/workflows/cloud-deploy-relay-production-same-cap-job.yml@refs/heads/main' || assertion.job_workflow_ref == 'stablyai/orca/.github/workflows/cloud-deploy-relay-production-same-cap.yml@refs/heads/main')))",
"assertion.repository == 'stablyai/orca' && assertion.repository_id == '1183888342' && assertion.repository_owner_id == '127256420' && assertion.ref == 'refs/heads/main' && assertion.environment == 'production' && ((assertion.workflow_ref == 'stablyai/orca/.github/workflows/cloud-deploy-relay-fence-broker.yml@refs/heads/main' || assertion.workflow_ref == 'stablyai/orca/.github/workflows/cloud-deploy-relay-production-capacity.yml@refs/heads/main' || assertion.workflow_ref == 'stablyai/orca/.github/workflows/cloud-deploy-relay-production-director.yml@refs/heads/main' || assertion.workflow_ref == 'stablyai/orca/.github/workflows/cloud-deploy-relay-production-multi-target.yml@refs/heads/main' || assertion.workflow_ref == 'stablyai/orca/.github/workflows/cloud-deploy-relay-production.yml@refs/heads/main' || assertion.workflow_ref == 'stablyai/orca/.github/workflows/cloud-operate-relay-asia-admission.yml@refs/heads/main' || assertion.workflow_ref == 'stablyai/orca/.github/workflows/cloud-operate-relay-production-cell-flags.yml@refs/heads/main' || assertion.workflow_ref == 'stablyai/orca/.github/workflows/cloud-operate-relay-production-reserve-watch.yml@refs/heads/main' || assertion.workflow_ref == 'stablyai/orca/.github/workflows/cloud-publish-relay-production.yml@refs/heads/main') || (assertion.workflow_ref == 'stablyai/orca/.github/workflows/cloud-operate-relay-production-rehome.yml@refs/heads/main' && assertion.job_workflow_ref == 'stablyai/orca/.github/workflows/cloud-operate-relay-production-rehome-job.yml@refs/heads/main') || (assertion.workflow_ref == 'stablyai/orca/.github/workflows/cloud-deploy-relay-production-same-cap.yml@refs/heads/main' && (assertion.job_workflow_ref == 'stablyai/orca/.github/workflows/cloud-deploy-relay-production-same-cap-job.yml@refs/heads/main' || assertion.job_workflow_ref == 'stablyai/orca/.github/workflows/cloud-deploy-relay-production-same-cap.yml@refs/heads/main')))",
github_monitor:
"assertion.repository == 'stablyai/orca' && assertion.repository_id == '1183888342' && assertion.repository_owner_id == '127256420' && assertion.ref == 'refs/heads/main' && assertion.environment == 'production' && assertion.workflow_ref == 'stablyai/orca/.github/workflows/cloud-monitor-relay-production.yml@refs/heads/main' && assertion.job_workflow_ref == 'stablyai/orca/.github/workflows/cloud-monitor-relay-production-job.yml@refs/heads/main'",
github_fence: