Merge remote-tracking branch 'origin/main' into problame/infallible-timeline-activate/3-funnel-storage-broker-client

2026-05-20 06:30:43 +00:00 · 2023-05-24 16:58:25 +02:00
parent b54431bbd3 afc48e2cd9
commit 732f60317b
19 changed files with 493 additions and 188 deletions
--- a/.github/actions/allure-report-generate/action.yml
+++ b/.github/actions/allure-report-generate/action.yml
@@ -57,14 +57,14 @@ runs:
        if ! which allure; then
          ALLURE_ZIP=allure-${ALLURE_VERSION}.zip
          wget -q https://github.com/allure-framework/allure2/releases/download/${ALLURE_VERSION}/${ALLURE_ZIP}
-          echo "${ALLURE_ZIP_MD5}  ${ALLURE_ZIP}" | md5sum -c
+          echo "${ALLURE_ZIP_SHA256} ${ALLURE_ZIP}" | sha256sum --check
          unzip -q ${ALLURE_ZIP}
          echo "$(pwd)/allure-${ALLURE_VERSION}/bin" >> $GITHUB_PATH
          rm -f ${ALLURE_ZIP}
        fi
      env:
-        ALLURE_VERSION: 2.22.0
-        ALLURE_ZIP_MD5: d5c9f0989b896482536956340a7d5ec9
+        ALLURE_VERSION: 2.22.1
+        ALLURE_ZIP_SHA256: fdc7a62d94b14c5e0bf25198ae1feded6b005fdbed864b4d3cb4e5e901720b0b

    # Potentially we could have several running build for the same key (for example, for the main branch), so we use improvised lock for this
    - name: Acquire lock
--- a/libs/pageserver_api/src/models.rs
+++ b/libs/pageserver_api/src/models.rs
@@ -234,6 +234,28 @@ impl TenantConfigRequest {
    }
 }

+#[derive(Debug, Serialize, Deserialize)]
+pub struct TenantAttachRequest {
+    pub config: TenantAttachConfig,
+}
+
+/// Newtype to enforce deny_unknown_fields on TenantConfig for
+/// its usage inside `TenantAttachRequest`.
+#[derive(Debug, Serialize, Deserialize)]
+#[serde(deny_unknown_fields)]
+pub struct TenantAttachConfig {
+    #[serde(flatten)]
+    allowing_unknown_fields: TenantConfig,
+}
+
+impl std::ops::Deref for TenantAttachConfig {
+    type Target = TenantConfig;
+
+    fn deref(&self) -> &Self::Target {
+        &self.allowing_unknown_fields
+    }
+}
+
 /// See [`TenantState::attachment_status`] and the OpenAPI docs for context.
 #[derive(Serialize, Deserialize, Clone)]
 #[serde(rename_all = "snake_case")]
@@ -796,5 +818,17 @@ mod tests {
            "expect unknown field `unknown_field` error, got: {}",
            err
        );
+
+        let attach_request = json!({
+            "config": {
+                "unknown_field": "unknown_value".to_string(),
+            },
+        });
+        let err = serde_json::from_value::<TenantAttachRequest>(attach_request).unwrap_err();
+        assert!(
+            err.to_string().contains("unknown field `unknown_field`"),
+            "expect unknown field `unknown_field` error, got: {}",
+            err
+        );
    }
 }
--- a/libs/utils/src/http/json.rs
+++ b/libs/utils/src/http/json.rs
@@ -8,12 +8,26 @@ use super::error::ApiError;
 pub async fn json_request<T: for<'de> Deserialize<'de>>(
    request: &mut Request<Body>,
 ) -> Result<T, ApiError> {
-    let whole_body = hyper::body::aggregate(request.body_mut())
+    json_request_or_empty_body(request)
+        .await?
+        .context("missing request body")
+        .map_err(ApiError::BadRequest)
+}
+
+/// Will be removed as part of https://github.com/neondatabase/neon/issues/4282
+pub async fn json_request_or_empty_body<T: for<'de> Deserialize<'de>>(
+    request: &mut Request<Body>,
+) -> Result<Option<T>, ApiError> {
+    let body = hyper::body::aggregate(request.body_mut())
        .await
        .context("Failed to read request body")
        .map_err(ApiError::BadRequest)?;
-    serde_json::from_reader(whole_body.reader())
+    if body.remaining() == 0 {
+        return Ok(None);
+    }
+    serde_json::from_reader(body.reader())
        .context("Failed to parse json request")
+        .map(Some)
        .map_err(ApiError::BadRequest)
 }

--- a/pageserver/src/http/openapi_spec.yml
+++ b/pageserver/src/http/openapi_spec.yml
@@ -363,11 +363,29 @@ paths:
        * MUST NOT ASSUME that the request has been lost, based on the observation
          that a subsequent tenant status request returns 404. The request may
          still be in flight. It must be retried.
+
+        The client SHOULD supply a `TenantConfig` for the tenant in the request body.
+        Settings specified in the config override the pageserver's defaults.
+        It is guaranteed that the config settings are applied before the pageserver
+        starts operating on the tenant. E.g., if the config specifies a specific
+        PITR interval for a tenant, then that setting will be in effect before the
+        pageserver starts the garbage collection loop. This enables a client to
+        guarantee a specific PITR setting across detach/attach cycles.
+        The pageserver will reject the request if it cannot parse the config, or
+        if there are any unknown fields in it.
+
+        If the client does not supply a config, the pageserver will use its defaults.
+        This behavior is deprecated: https://github.com/neondatabase/neon/issues/4282
+      requestBody:
+        required: false
+        content:
+          application/json:
+            schema:
+              $ref: "#/components/schemas/TenantAttachRequest"
      responses:
        "202":
          description: Tenant attaching scheduled
        "400":
-          description: Error when no tenant id found in path parameters
          content:
            application/json:
              schema:
@@ -922,6 +940,13 @@ components:
            new_tenant_id:
              type: string
              format: hex
+    TenantAttachRequest:
+      type: object
+      required:
+        - config
+      properties:
+        config:
+          $ref: '#/components/schemas/TenantConfig'
    TenantConfigRequest:
      allOf:
        - $ref: '#/components/schemas/TenantConfig'
--- a/pageserver/src/http/routes.rs
+++ b/pageserver/src/http/routes.rs
@@ -5,13 +5,14 @@ use anyhow::{anyhow, Context, Result};
 use hyper::StatusCode;
 use hyper::{Body, Request, Response, Uri};
 use metrics::launch_timestamp::LaunchTimestamp;
-use pageserver_api::models::DownloadRemoteLayersTaskSpawnRequest;
+use pageserver_api::models::{DownloadRemoteLayersTaskSpawnRequest, TenantAttachRequest};
 use remote_storage::GenericRemoteStorage;
 use storage_broker::BrokerClientChannel;
 use tenant_size_model::{SizeResult, StorageModel};
 use tokio_util::sync::CancellationToken;
 use tracing::*;
 use utils::http::endpoint::RequestSpan;
+use utils::http::json::json_request_or_empty_body;
 use utils::http::request::{get_request_param, must_get_query_param, parse_query_param};

 use super::models::{
@@ -393,11 +394,16 @@ async fn get_lsn_by_timestamp_handler(request: Request<Body>) -> Result<Response
    json_response(StatusCode::OK, result)
 }

-// TODO makes sense to provide tenant config right away the same way as it handled in tenant_create
-async fn tenant_attach_handler(request: Request<Body>) -> Result<Response<Body>, ApiError> {
+async fn tenant_attach_handler(mut request: Request<Body>) -> Result<Response<Body>, ApiError> {
    let tenant_id: TenantId = parse_request_param(&request, "tenant_id")?;
    check_permission(&request, Some(tenant_id))?;

+    let maybe_body: Option<TenantAttachRequest> = json_request_or_empty_body(&mut request).await?;
+    let tenant_conf = match maybe_body {
+        Some(request) => TenantConfOpt::try_from(&*request.config).map_err(ApiError::BadRequest)?,
+        None => TenantConfOpt::default(),
+    };
+
    let ctx = RequestContext::new(TaskKind::MgmtRequest, DownloadBehavior::Warn);

    info!("Handling tenant attach {tenant_id}");
@@ -408,9 +414,7 @@ async fn tenant_attach_handler(request: Request<Body>) -> Result<Response<Body>,
        mgr::attach_tenant(
            state.conf,
            tenant_id,
-            // XXX: Attach should provide the config, especially during tenant migration.
-            //      See https://github.com/neondatabase/neon/issues/1555
-            TenantConfOpt::default(),
+            tenant_conf,
            state.broker_client.clone(),
            remote_storage.clone(),
            &ctx,
--- a/poetry.lock
+++ b/poetry.lock
@@ -1,4 +1,4 @@
-# This file is automatically @generated by Poetry and should not be changed by hand.
+# This file is automatically @generated by Poetry 1.4.2 and should not be changed by hand.

 [[package]]
 name = "aiohttp"
@@ -79,30 +79,30 @@ sa = ["sqlalchemy[postgresql-psycopg2binary] (>=1.3,<1.5)"]

 [[package]]
 name = "allure-pytest"
-version = "2.13.1"
+version = "2.13.2"
 description = "Allure pytest integration"
 category = "main"
 optional = false
 python-versions = "*"
 files = [
-    {file = "allure-pytest-2.13.1.tar.gz", hash = "sha256:68d69456eeb65af4061ec06a80bc941163b0616e8216554d36b070a6bf070e08"},
-    {file = "allure_pytest-2.13.1-py3-none-any.whl", hash = "sha256:a8de2fc3b3effe2d8f98801646920de3f055b779710f4c806dbee7c613c24633"},
+    {file = "allure-pytest-2.13.2.tar.gz", hash = "sha256:22243159e8ec81ce2b5254b4013802198821b1b42f118f69d4a289396607c7b3"},
+    {file = "allure_pytest-2.13.2-py3-none-any.whl", hash = "sha256:17de9dbee7f61c8e66a5b5e818b00e419dbcea44cb55c24319401ba813220690"},
 ]

 [package.dependencies]
-allure-python-commons = "2.13.1"
+allure-python-commons = "2.13.2"
 pytest = ">=4.5.0"

 [[package]]
 name = "allure-python-commons"
-version = "2.13.1"
+version = "2.13.2"
 description = "Common module for integrate allure with python-based frameworks"
 category = "main"
 optional = false
 python-versions = ">=3.6"
 files = [
-    {file = "allure-python-commons-2.13.1.tar.gz", hash = "sha256:3fc13e1da8ebb23f9ab5c9c72ad04595023cdd5078dbb8604939997faebed5cb"},
-    {file = "allure_python_commons-2.13.1-py3-none-any.whl", hash = "sha256:d08e04867bddf44fef55def3d67f4bc25af58a1bf9fcffcf4ec3331f7f2ef0d0"},
+    {file = "allure-python-commons-2.13.2.tar.gz", hash = "sha256:8a03681330231b1deadd86b97ff68841c6591320114ae638570f1ed60d7a2033"},
+    {file = "allure_python_commons-2.13.2-py3-none-any.whl", hash = "sha256:2bb3646ec3fbf5b36d178a5e735002bc130ae9f9ba80f080af97d368ba375051"},
 ]

 [package.dependencies]
@@ -172,17 +172,6 @@ dev = ["Cython (>=0.29.24,<0.30.0)", "Sphinx (>=4.1.2,<4.2.0)", "flake8 (>=5.0.4
 docs = ["Sphinx (>=4.1.2,<4.2.0)", "sphinx-rtd-theme (>=0.5.2,<0.6.0)", "sphinxcontrib-asyncio (>=0.3.0,<0.4.0)"]
 test = ["flake8 (>=5.0.4,<5.1.0)", "uvloop (>=0.15.3)"]

-[[package]]
-name = "atomicwrites"
-version = "1.4.1"
-description = "Atomic file writes."
-category = "main"
-optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-files = [
-    {file = "atomicwrites-1.4.1.tar.gz", hash = "sha256:81b2c9071a49367a7f770170e5eec8cb66567cfbbc8c73d20ce5ca4a8d71cf11"},
-]
-
 [[package]]
 name = "attrs"
 version = "21.4.0"
@@ -239,49 +228,49 @@ wrapt = "*"

 [[package]]
 name = "backoff"
-version = "1.11.1"
+version = "2.2.1"
 description = "Function decoration for backoff and retry"
 category = "main"
 optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
+python-versions = ">=3.7,<4.0"
 files = [
-    {file = "backoff-1.11.1-py2.py3-none-any.whl", hash = "sha256:61928f8fa48d52e4faa81875eecf308eccfb1016b018bb6bd21e05b5d90a96c5"},
-    {file = "backoff-1.11.1.tar.gz", hash = "sha256:ccb962a2378418c667b3c979b504fdeb7d9e0d29c0579e3b13b86467177728cb"},
+    {file = "backoff-2.2.1-py3-none-any.whl", hash = "sha256:63579f9a0628e06278f7e47b7d7d5b6ce20dc65c5e96a6f3ca99a6adca0396e8"},
+    {file = "backoff-2.2.1.tar.gz", hash = "sha256:03f829f5bb1923180821643f8753b0502c3b682293992485b0eef2807afa5cba"},
 ]

 [[package]]
 name = "black"
-version = "23.1.0"
+version = "23.3.0"
 description = "The uncompromising code formatter."
 category = "dev"
 optional = false
 python-versions = ">=3.7"
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+version = "7.3.1"
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-py = ">=1.8.2"
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 [package.extras]
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 [package.dependencies]
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 [[package]]
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+version = "1.1.0"
 description = "pytest plugin to run your tests in a specific order"
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 python-versions = ">=3.6"
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 [[package]]
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 ]

 [package.dependencies]
@@ -2148,29 +2139,29 @@ pyasn1 = ">=0.1.3"

 [[package]]
 name = "ruff"
-version = "0.0.255"
+version = "0.0.269"
 description = "An extremely fast Python linter, written in Rust."
 category = "dev"
 optional = false
 python-versions = ">=3.7"
 files = [
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+    {file = "ruff-0.0.269-py3-none-win_amd64.whl", hash = "sha256:f3b59ccff57b21ef0967ea8021fd187ec14c528ec65507d8bcbe035912050776"},
+    {file = "ruff-0.0.269-py3-none-win_arm64.whl", hash = "sha256:bbeb857b1e508a4487bdb02ca1e6d41dd8d5ac5335a5246e25de8a3dff38c1ff"},
+    {file = "ruff-0.0.269.tar.gz", hash = "sha256:11ddcfbab32cf5c420ea9dd5531170ace5a3e59c16d9251c7bd2581f7b16f602"},
 ]

 [[package]]
@@ -2271,7 +2262,7 @@ files = [
 name = "tomli"
 version = "2.0.1"
 description = "A lil' TOML parser"
-category = "dev"
+category = "main"
 optional = false
 python-versions = ">=3.7"
 files = [
@@ -2281,42 +2272,54 @@ files = [

 [[package]]
 name = "types-psutil"
-version = "5.9.5.4"
+version = "5.9.5.12"
 description = "Typing stubs for psutil"
 category = "main"
 optional = false
 python-versions = "*"
 files = [
-    {file = "types-psutil-5.9.5.4.tar.gz", hash = "sha256:aa09102b80c65a3b4573216614372398dab78972d650488eaff1ff05482cc18f"},
-    {file = "types_psutil-5.9.5.4-py3-none-any.whl", hash = "sha256:28e59764630187e462d43788efa16d59d5e77b510115f9e25901b2d4007fca62"},
+    {file = "types-psutil-5.9.5.12.tar.gz", hash = "sha256:61a91679d3fe737250013b624dca09375e7cc3ad77dcc734553746c429c02aca"},
+    {file = "types_psutil-5.9.5.12-py3-none-any.whl", hash = "sha256:e9a147b8561235c6afcce5aa1adb973fad9ab2c50cf89820697687f53510358f"},
 ]

 [[package]]
 name = "types-psycopg2"
-version = "2.9.18"
+version = "2.9.21.10"
 description = "Typing stubs for psycopg2"
 category = "main"
 optional = false
 python-versions = "*"
 files = [
-    {file = "types-psycopg2-2.9.18.tar.gz", hash = "sha256:9b0e9e1f097b15cd9fa8aad2596a9e3082fd72f8d9cfe52b190cfa709105b6c0"},
-    {file = "types_psycopg2-2.9.18-py3-none-any.whl", hash = "sha256:14c779dcab18c31453fa1cad3cf4b1601d33540a344adead3c47a6b8091cd2fa"},
+    {file = "types-psycopg2-2.9.21.10.tar.gz", hash = "sha256:c2600892312ae1c34e12f145749795d93dc4eac3ef7dbf8a9c1bfd45385e80d7"},
+    {file = "types_psycopg2-2.9.21.10-py3-none-any.whl", hash = "sha256:918224a0731a3650832e46633e720703b5beef7693a064e777d9748654fcf5e5"},
+]
+
+[[package]]
+name = "types-pytest-lazy-fixture"
+version = "0.6.3.3"
+description = "Typing stubs for pytest-lazy-fixture"
+category = "main"
+optional = false
+python-versions = "*"
+files = [
+    {file = "types-pytest-lazy-fixture-0.6.3.3.tar.gz", hash = "sha256:2ef79d66bcde0e50acdac8dc55074b9ae0d4cfaeabdd638f5522f4cac7c8a2c7"},
+    {file = "types_pytest_lazy_fixture-0.6.3.3-py3-none-any.whl", hash = "sha256:a56a55649147ff960ff79d4b2c781a4f769351abc1876873f3116d0bd0c96353"},
 ]

 [[package]]
 name = "types-requests"
-version = "2.28.5"
+version = "2.31.0.0"
 description = "Typing stubs for requests"
 category = "main"
 optional = false
 python-versions = "*"
 files = [
-    {file = "types-requests-2.28.5.tar.gz", hash = "sha256:ac618bfefcb3742eaf97c961e13e9e5a226e545eda4a3dbe293b898d40933ad1"},
-    {file = "types_requests-2.28.5-py3-none-any.whl", hash = "sha256:98ab647ae88b5e2c41d6d20cfcb5117da1bea561110000b6fdeeea07b3e89877"},
+    {file = "types-requests-2.31.0.0.tar.gz", hash = "sha256:c1c29d20ab8d84dff468d7febfe8e0cb0b4664543221b386605e14672b44ea25"},
+    {file = "types_requests-2.31.0.0-py3-none-any.whl", hash = "sha256:7c5cea7940f8e92ec560bbc468f65bf684aa3dcf0554a6f8c4710f5f708dc598"},
 ]

 [package.dependencies]
-types-urllib3 = "<1.27"
+types-urllib3 = "*"

 [[package]]
 name = "types-s3transfer"
@@ -2332,14 +2335,14 @@ files = [

 [[package]]
 name = "types-toml"
-version = "0.10.8"
+version = "0.10.8.6"
 description = "Typing stubs for toml"
 category = "main"
 optional = false
 python-versions = "*"
 files = [
-    {file = "types-toml-0.10.8.tar.gz", hash = "sha256:b7e7ea572308b1030dc86c3ba825c5210814c2825612ec679eb7814f8dd9295a"},
-    {file = "types_toml-0.10.8-py3-none-any.whl", hash = "sha256:8300fd093e5829eb9c1fba69cee38130347d4b74ddf32d0a7df650ae55c2b599"},
+    {file = "types-toml-0.10.8.6.tar.gz", hash = "sha256:6d3ac79e36c9ee593c5d4fb33a50cca0e3adceb6ef5cff8b8e5aef67b4c4aaf2"},
+    {file = "types_toml-0.10.8.6-py3-none-any.whl", hash = "sha256:de7b2bb1831d6f7a4b554671ffe5875e729753496961b3e9b202745e4955dafa"},
 ]

 [[package]]
@@ -2356,14 +2359,14 @@ files = [

 [[package]]
 name = "typing-extensions"
-version = "4.3.0"
+version = "4.6.1"
 description = "Backported and Experimental Type Hints for Python 3.7+"
 category = "main"
 optional = false
 python-versions = ">=3.7"
 files = [
-    {file = "typing_extensions-4.3.0-py3-none-any.whl", hash = "sha256:25642c956049920a5aa49edcdd6ab1e06d7e5d467fc00e0506c44ac86fbfca02"},
-    {file = "typing_extensions-4.3.0.tar.gz", hash = "sha256:e6d2677a32f47fc7eb2795db1dd15c1f34eff616bcaf2cfb5e997f854fa1c4a6"},
+    {file = "typing_extensions-4.6.1-py3-none-any.whl", hash = "sha256:6bac751f4789b135c43228e72de18637e9a6c29d12777023a703fd1a6858469f"},
+    {file = "typing_extensions-4.6.1.tar.gz", hash = "sha256:558bc0c4145f01e6405f4a5fdbd82050bd221b119f4bf72a961a1cfd471349d6"},
 ]

 [[package]]
@@ -2611,4 +2614,4 @@ testing = ["func-timeout", "jaraco.itertools", "pytest (>=6)", "pytest-black (>=
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.9"
-content-hash = "a0bd73376a3e9479f2379265ccec8dd6ac9df2e525909d12b77d918d590fba55"
+content-hash = "c6c217033f50430c31b0979b74db222e6bab2301abd8b9f0cce5a9d5bccc578f"
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -6,40 +6,41 @@ authors = []

 [tool.poetry.dependencies]
 python = "^3.9"
-pytest = "^6.2.5"
+pytest = "^7.3.1"
 psycopg2-binary = "^2.9.1"
-typing-extensions = "^4.1.0"
+typing-extensions = "^4.6.1"
 PyJWT = {version = "^2.1.0", extras = ["crypto"]}
 requests = "^2.31.0"
-pytest-xdist = "^3.0.2"
+pytest-xdist = "^3.3.1"
 asyncpg = "^0.27.0"
 aiopg = "^1.3.1"
 Jinja2 = "^3.0.2"
-types-requests = "^2.28.5"
-types-psycopg2 = "^2.9.18"
+types-requests = "^2.31.0.0"
+types-psycopg2 = "^2.9.21.10"
 boto3 = "^1.26.16"
 boto3-stubs = {extras = ["s3"], version = "^1.26.16"}
 moto = {extras = ["server"], version = "^4.1.2"}
-backoff = "^1.11.1"
+backoff = "^2.2.1"
 pytest-lazy-fixture = "^0.6.3"
 prometheus-client = "^0.14.1"
 pytest-timeout = "^2.1.0"
 Werkzeug = "^2.2.3"
-pytest-order = "^1.0.1"
-allure-pytest = "^2.13.1"
-pytest-asyncio = "^0.19.0"
+pytest-order = "^1.1.0"
+allure-pytest = "^2.13.2"
+pytest-asyncio = "^0.21.0"
 toml = "^0.10.2"
 psutil = "^5.9.4"
-types-psutil = "^5.9.5.4"
-types-toml = "^0.10.8"
-pytest-httpserver = "^1.0.6"
+types-psutil = "^5.9.5.12"
+types-toml = "^0.10.8.6"
+pytest-httpserver = "^1.0.8"
 aiohttp = "3.7.4"
 pytest-rerunfailures = "^11.1.2"
+types-pytest-lazy-fixture = "^0.6.3.3"

 [tool.poetry.group.dev.dependencies]
-black = "^23.1.0"
-mypy = "==1.1.1"
-ruff = "^0.0.255"
+black = "^23.3.0"
+mypy = "==1.3.0"
+ruff = "^0.0.269"

 [build-system]
 requires = ["poetry-core>=1.0.0"]
--- a/scripts/export_import_between_pageservers.py
+++ b/scripts/export_import_between_pageservers.py
@@ -162,7 +162,7 @@ class PgProtocol:
        Returns psycopg2's connection object.
        This method passes all extra params to connstr.
        """
-        conn = psycopg2.connect(**self.conn_options(**kwargs))
+        conn: PgConnection = psycopg2.connect(**self.conn_options(**kwargs))

        # WARNING: this setting affects *all* tests!
        conn.autocommit = autocommit
--- a/scripts/ingest_perf_test_result.py
+++ b/scripts/ingest_perf_test_result.py
@@ -35,7 +35,7 @@ def get_connection_cursor():
    connstr = os.getenv("DATABASE_URL")
    if not connstr:
        err("DATABASE_URL environment variable is not set")
-    with psycopg2.connect(connstr) as conn:
+    with psycopg2.connect(connstr, connect_timeout=30) as conn:
        with conn.cursor() as cur:
            yield cur

--- a/test_runner/fixtures/compare_fixtures.py
+++ b/test_runner/fixtures/compare_fixtures.py
@@ -312,6 +312,6 @@ def neon_with_baseline(request: FixtureRequest) -> PgCompare:
    implementation-specific logic is widely useful across multiple tests, it might
    make sense to add methods to the PgCompare class.
    """
-    fixture = request.getfixturevalue(request.param)  # type: ignore
+    fixture = request.getfixturevalue(request.param)
    assert isinstance(fixture, PgCompare), f"test error: fixture {fixture} is not PgCompare"
    return fixture
--- a/test_runner/fixtures/neon_fixtures.py
+++ b/test_runner/fixtures/neon_fixtures.py
@@ -26,7 +26,7 @@ from typing import Any, Dict, Iterator, List, Optional, Tuple, Type, Union, cast
 from urllib.parse import urlparse

 import asyncpg
-import backoff  # type: ignore
+import backoff
 import boto3
 import jwt
 import psycopg2
@@ -354,7 +354,7 @@ class PgProtocol:
        Returns psycopg2's connection object.
        This method passes all extra params to connstr.
        """
-        conn = psycopg2.connect(**self.conn_options(**kwargs))
+        conn: PgConnection = psycopg2.connect(**self.conn_options(**kwargs))

        # WARNING: this setting affects *all* tests!
        conn.autocommit = autocommit
--- a/test_runner/fixtures/pageserver/http.py
+++ b/test_runner/fixtures/pageserver/http.py
@@ -1,5 +1,6 @@
 from __future__ import annotations

+import json
 import time
 from collections import defaultdict
 from dataclasses import dataclass
@@ -109,6 +110,10 @@ class PageserverHttpClient(requests.Session):
        if auth_token is not None:
            self.headers["Authorization"] = f"Bearer {auth_token}"

+    @property
+    def base_url(self) -> str:
+        return f"http://localhost:{self.port}"
+
    def verbose_error(self, res: requests.Response):
        try:
            res.raise_for_status()
@@ -168,8 +173,22 @@ class PageserverHttpClient(requests.Session):
        assert isinstance(new_tenant_id, str)
        return TenantId(new_tenant_id)

-    def tenant_attach(self, tenant_id: TenantId):
-        res = self.post(f"http://localhost:{self.port}/v1/tenant/{tenant_id}/attach")
+    def tenant_attach(
+        self, tenant_id: TenantId, config: None | Dict[str, Any] = None, config_null: bool = False
+    ):
+        if config_null:
+            assert config is None
+            body = "null"
+        else:
+            # null-config is prohibited by the API
+            if config is None:
+                config = {}
+            body = json.dumps({"config": config})
+        res = self.post(
+            f"http://localhost:{self.port}/v1/tenant/{tenant_id}/attach",
+            data=body,
+            headers={"Content-Type": "application/json"},
+        )
        self.verbose_error(res)

    def tenant_detach(self, tenant_id: TenantId, detach_ignored=False):
--- a/test_runner/performance/test_dup_key.py
+++ b/test_runner/performance/test_dup_key.py
@@ -2,7 +2,7 @@ from contextlib import closing

 import pytest
 from fixtures.compare_fixtures import PgCompare
-from pytest_lazyfixture import lazy_fixture  # type: ignore
+from pytest_lazyfixture import lazy_fixture


@pytest.mark.parametrize(
--- a/test_runner/performance/test_hot_page.py
+++ b/test_runner/performance/test_hot_page.py
@@ -2,7 +2,7 @@ from contextlib import closing

 import pytest
 from fixtures.compare_fixtures import PgCompare
-from pytest_lazyfixture import lazy_fixture  # type: ignore
+from pytest_lazyfixture import lazy_fixture


@pytest.mark.parametrize(
--- a/test_runner/performance/test_hot_table.py
+++ b/test_runner/performance/test_hot_table.py
@@ -2,7 +2,7 @@ from contextlib import closing

 import pytest
 from fixtures.compare_fixtures import PgCompare
-from pytest_lazyfixture import lazy_fixture  # type: ignore
+from pytest_lazyfixture import lazy_fixture


@pytest.mark.parametrize(
--- a/test_runner/performance/test_seqscans.py
+++ b/test_runner/performance/test_seqscans.py
@@ -6,7 +6,7 @@ import pytest
 from fixtures.benchmark_fixture import MetricReport
 from fixtures.compare_fixtures import PgCompare
 from fixtures.log_helper import log
-from pytest_lazyfixture import lazy_fixture  # type: ignore
+from pytest_lazyfixture import lazy_fixture


@pytest.mark.parametrize(
--- a/test_runner/regress/test_attach_tenant_config.py
+++ b/test_runner/regress/test_attach_tenant_config.py
@@ -0,0 +1,200 @@
+from dataclasses import dataclass
+from typing import Generator, Optional
+
+import pytest
+from fixtures.neon_fixtures import (
+    LocalFsStorage,
+    NeonEnv,
+    NeonEnvBuilder,
+    RemoteStorageKind,
+)
+from fixtures.pageserver.http import PageserverApiException, TenantConfig
+from fixtures.types import TenantId
+from fixtures.utils import wait_until
+
+
+@pytest.fixture
+def positive_env(neon_env_builder: NeonEnvBuilder) -> NeonEnv:
+    neon_env_builder.enable_remote_storage(
+        remote_storage_kind=RemoteStorageKind.LOCAL_FS,
+        test_name="test_attach_tenant_config",
+    )
+    env = neon_env_builder.init_start()
+    assert isinstance(env.remote_storage, LocalFsStorage)
+    return env
+
+
+@dataclass
+class NegativeTests:
+    neon_env: NeonEnv
+    tenant_id: TenantId
+    config_pre_detach: TenantConfig
+
+
+@pytest.fixture
+def negative_env(neon_env_builder: NeonEnvBuilder) -> Generator[NegativeTests, None, None]:
+    neon_env_builder.enable_remote_storage(
+        remote_storage_kind=RemoteStorageKind.LOCAL_FS,
+        test_name="test_attach_tenant_config",
+    )
+    env = neon_env_builder.init_start()
+    assert isinstance(env.remote_storage, LocalFsStorage)
+
+    ps_http = env.pageserver.http_client()
+    (tenant_id, _) = env.neon_cli.create_tenant()
+    assert ps_http.tenant_config(tenant_id).tenant_specific_overrides == {}
+    config_pre_detach = ps_http.tenant_config(tenant_id)
+    assert tenant_id in [TenantId(t["id"]) for t in ps_http.tenant_list()]
+    ps_http.tenant_detach(tenant_id)
+    assert tenant_id not in [TenantId(t["id"]) for t in ps_http.tenant_list()]
+
+    yield NegativeTests(env, tenant_id, config_pre_detach)
+
+    assert tenant_id not in [
+        TenantId(t["id"]) for t in ps_http.tenant_list()
+    ], "tenant should not be attached after negative test"
+
+    env.pageserver.allowed_errors.append(".*Error processing HTTP request: Bad request")
+
+    def log_contains_bad_request():
+        env.pageserver.log_contains(".*Error processing HTTP request: Bad request")
+
+    wait_until(50, 0.1, log_contains_bad_request)
+
+
+def test_null_body(negative_env: NegativeTests):
+    """
+    If we send `null` in the body, the request should be rejected with status 400.
+    """
+    env = negative_env.neon_env
+    tenant_id = negative_env.tenant_id
+    ps_http = env.pageserver.http_client()
+
+    res = ps_http.post(
+        f"{ps_http.base_url}/v1/tenant/{tenant_id}/attach",
+        data=b"null",
+        headers={"Content-Type": "application/json"},
+    )
+    assert res.status_code == 400
+
+
+def test_null_config(negative_env: NegativeTests):
+    """
+    If the `config` field is `null`, the request should be rejected with status 400.
+    """
+
+    env = negative_env.neon_env
+    tenant_id = negative_env.tenant_id
+    ps_http = env.pageserver.http_client()
+
+    res = ps_http.post(
+        f"{ps_http.base_url}/v1/tenant/{tenant_id}/attach",
+        data=b'{"config": null}',
+        headers={"Content-Type": "application/json"},
+    )
+    assert res.status_code == 400
+
+
+def test_config_with_unknown_keys_is_bad_request(negative_env: NegativeTests):
+    """
+    If we send a config with unknown keys, the request should be rejected with status 400.
+    """
+
+    env = negative_env.neon_env
+    tenant_id = negative_env.tenant_id
+    ps_http = env.pageserver.http_client()
+
+    config_with_unknown_keys = {
+        "compaction_period": "1h",
+        "this_key_does_not_exist": "some value",
+    }
+
+    with pytest.raises(PageserverApiException) as e:
+        ps_http.tenant_attach(tenant_id, config=config_with_unknown_keys)
+    assert e.type == PageserverApiException
+    assert e.value.status_code == 400
+
+
+@pytest.mark.parametrize("content_type", [None, "application/json"])
+def test_empty_body(positive_env: NeonEnv, content_type: Optional[str]):
+    """
+    For backwards-compatiblity: if we send an empty body,
+    the request should be accepted and the config should be the default config.
+    """
+    env = positive_env
+    ps_http = env.pageserver.http_client()
+    (tenant_id, _) = env.neon_cli.create_tenant()
+    assert ps_http.tenant_config(tenant_id).tenant_specific_overrides == {}
+    config_pre_detach = ps_http.tenant_config(tenant_id)
+    assert tenant_id in [TenantId(t["id"]) for t in ps_http.tenant_list()]
+    ps_http.tenant_detach(tenant_id)
+    assert tenant_id not in [TenantId(t["id"]) for t in ps_http.tenant_list()]
+
+    ps_http.post(
+        f"{ps_http.base_url}/v1/tenant/{tenant_id}/attach",
+        data=b"",
+        headers=None if content_type else {"Content-Type": "application/json"},
+    ).raise_for_status()
+
+    assert ps_http.tenant_config(tenant_id).tenant_specific_overrides == {}
+    assert ps_http.tenant_config(tenant_id).effective_config == config_pre_detach.effective_config
+
+
+def test_fully_custom_config(positive_env: NeonEnv):
+    """
+    If we send a valid config in the body, the request should be accepted and the config should be applied.
+    """
+    env = positive_env
+
+    fully_custom_config = {
+        "compaction_period": "1h",
+        "compaction_threshold": 13,
+        "compaction_target_size": 1048576,
+        "checkpoint_distance": 10000,
+        "checkpoint_timeout": "13m",
+        "eviction_policy": {
+            "kind": "LayerAccessThreshold",
+            "period": "20s",
+            "threshold": "23h",
+        },
+        "evictions_low_residence_duration_metric_threshold": "2days",
+        "gc_horizon": 23 * (1024 * 1024),
+        "gc_period": "2h 13m",
+        "image_creation_threshold": 7,
+        "pitr_interval": "1m",
+        "lagging_wal_timeout": "23m",
+        "max_lsn_wal_lag": 230000,
+        "min_resident_size_override": 23,
+        "trace_read_requests": True,
+        "walreceiver_connect_timeout": "13m",
+    }
+
+    ps_http = env.pageserver.http_client()
+
+    initial_tenant_config = ps_http.tenant_config(env.initial_tenant)
+    assert initial_tenant_config.tenant_specific_overrides == {}
+    assert set(initial_tenant_config.effective_config.keys()) == set(
+        fully_custom_config.keys()
+    ), "ensure we cover all config options"
+
+    (tenant_id, _) = env.neon_cli.create_tenant()
+    ps_http.set_tenant_config(tenant_id, fully_custom_config)
+    our_tenant_config = ps_http.tenant_config(tenant_id)
+    assert our_tenant_config.tenant_specific_overrides == fully_custom_config
+    assert set(our_tenant_config.effective_config.keys()) == set(
+        fully_custom_config.keys()
+    ), "ensure we cover all config options"
+    assert {
+        k: initial_tenant_config.effective_config[k] != our_tenant_config.effective_config[k]
+        for k in fully_custom_config.keys()
+    } == {
+        k: True for k in fully_custom_config.keys()
+    }, "ensure our custom config has different values than the default config for all config options, so we know we overrode everything"
+
+    ps_http.tenant_detach(tenant_id)
+    ps_http.tenant_attach(tenant_id, config=fully_custom_config)
+
+    assert ps_http.tenant_config(tenant_id).tenant_specific_overrides == fully_custom_config
+    assert set(ps_http.tenant_config(tenant_id).effective_config.keys()) == set(
+        fully_custom_config.keys()
+    ), "ensure we cover all config options"
--- a/test_runner/regress/test_sni_router.py
+++ b/test_runner/regress/test_sni_router.py
@@ -4,7 +4,7 @@ from pathlib import Path
 from types import TracebackType
 from typing import Optional, Type

-import backoff  # type: ignore
+import backoff
 from fixtures.log_helper import log
 from fixtures.neon_fixtures import PgProtocol, PortDistributor, VanillaPostgres

--- a/test_runner/regress/test_tenant_conf.py
+++ b/test_runner/regress/test_tenant_conf.py
@@ -62,6 +62,7 @@ eviction_policy = { "kind" = "LayerAccessThreshold", period = "20s", threshold =
            log.info(f"show {env.initial_tenant}")
            pscur.execute(f"show {env.initial_tenant}")
            res = pscur.fetchone()
+            assert res is not None
            assert all(
                i in res.items()
                for i in {
@@ -101,6 +102,7 @@ eviction_policy = { "kind" = "LayerAccessThreshold", period = "20s", threshold =
            pscur.execute(f"show {tenant}")
            res = pscur.fetchone()
            log.info(f"res: {res}")
+            assert res is not None
            assert all(
                i in res.items()
                for i in {
@@ -163,6 +165,7 @@ eviction_policy = { "kind" = "LayerAccessThreshold", period = "20s", threshold =
            pscur.execute(f"show {tenant}")
            res = pscur.fetchone()
            log.info(f"after config res: {res}")
+            assert res is not None
            assert all(
                i in res.items()
                for i in {
@@ -218,6 +221,7 @@ eviction_policy = { "kind" = "LayerAccessThreshold", period = "20s", threshold =
            pscur.execute(f"show {tenant}")
            res = pscur.fetchone()
            log.info(f"after restart res: {res}")
+            assert res is not None
            assert all(
                i in res.items()
                for i in {
@@ -278,6 +282,7 @@ eviction_policy = { "kind" = "LayerAccessThreshold", period = "20s", threshold =
            pscur.execute(f"show {tenant}")
            res = pscur.fetchone()
            log.info(f"after restart res: {res}")
+            assert res is not None
            assert all(
                i in res.items()
                for i in {