Files
neon/libs/compute_api/src/responses.rs
2023-07-25 19:44:18 -04:00

100 lines
2.8 KiB
Rust

//! Structs representing the JSON formats used in the compute_ctl's HTTP API.
use chrono::{DateTime, Utc};
use serde::{Deserialize, Serialize, Serializer};
use crate::spec::ComputeSpec;
#[derive(Serialize, Debug, Deserialize)]
pub struct GenericAPIError {
pub error: String,
}
/// Response of the /status API
#[derive(Serialize, Debug, Deserialize)]
#[serde(rename_all = "snake_case")]
pub struct ComputeStatusResponse {
pub start_time: DateTime<Utc>,
pub tenant: Option<String>,
pub timeline: Option<String>,
pub status: ComputeStatus,
#[serde(serialize_with = "rfc3339_serialize")]
pub last_active: Option<DateTime<Utc>>,
pub error: Option<String>,
}
#[derive(Deserialize, Serialize)]
#[serde(rename_all = "snake_case")]
pub struct ComputeState {
pub status: ComputeStatus,
/// Timestamp of the last Postgres activity
#[serde(serialize_with = "rfc3339_serialize")]
pub last_active: Option<DateTime<Utc>>,
pub error: Option<String>,
}
#[derive(Serialize, Clone, Copy, Debug, Deserialize, PartialEq, Eq)]
#[serde(rename_all = "snake_case")]
pub enum ComputeStatus {
// Spec wasn't provided at start, waiting for it to be
// provided by control-plane.
Empty,
// Compute configuration was requested.
ConfigurationPending,
// Compute node has spec and initial startup and
// configuration is in progress.
Init,
// Compute is configured and running.
Running,
// New spec is being applied.
Configuration,
// Either startup or configuration failed,
// compute will exit soon or is waiting for
// control-plane to terminate it.
Failed,
}
fn rfc3339_serialize<S>(x: &Option<DateTime<Utc>>, s: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
if let Some(x) = x {
x.to_rfc3339().serialize(s)
} else {
s.serialize_none()
}
}
/// Response of the /metrics.json API
#[derive(Clone, Debug, Default, Serialize)]
pub struct ComputeMetrics {
pub wait_for_spec_ms: u64,
pub sync_safekeepers_ms: u64,
pub sync_sk_check_ms: u64,
pub basebackup_ms: u64,
pub basebackup_bytes: u64,
pub start_postgres_ms: u64,
pub config_ms: u64,
pub total_startup_ms: u64,
}
/// Response of the `/computes/{compute_id}/spec` control-plane API.
/// This is not actually a compute API response, so consider moving
/// to a different place.
#[derive(Deserialize, Debug)]
pub struct ControlPlaneSpecResponse {
pub spec: Option<ComputeSpec>,
pub status: ControlPlaneComputeStatus,
}
#[derive(Deserialize, Clone, Copy, Debug, PartialEq, Eq)]
#[serde(rename_all = "snake_case")]
pub enum ControlPlaneComputeStatus {
// Compute is known to control-plane, but it's not
// yet attached to any timeline / endpoint.
Empty,
// Compute is attached to some timeline / endpoint and
// should be able to start with provided spec.
Attached,
}