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testing ADR - architectural decisions
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Torben Sorensen
2025-12-12 10:57:49 -08:00
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docs/adr/0020-health-checks-and-liveness-readiness-probes.md
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@@ -11,10 +11,12 @@ When the application is containerized (`ADR-014`), the container orchestrator (e
## Decision
We will implement dedicated health check endpoints in the Express application.
* A **Liveness Probe** (`/api/health/live`) will return a `200 OK` to indicate the server is running. If it fails, the orchestrator should restart the container.
* A **Readiness Probe** (`/api/health/ready`) will return a `200 OK` only if the application is ready to accept traffic (e.g., database connection is established). If it fails, the orchestrator will temporarily remove the container from the load balancer.
* A **Liveness Probe** (`/api/health/live`) will return a `200 OK` to indicate the server is running. If it fails, the orchestrator should restart the container.
* A **Readiness Probe** (`/api/health/ready`) will return a `200 OK` only if the application is ready to accept traffic (e.g., database connection is established). If it fails, the orchestrator will temporarily remove the container from the load balancer.
## Consequences
* **Positive**: Enables robust, automated application lifecycle management in a containerized environment. Prevents traffic from being sent to unhealthy or uninitialized application instances.
* **Negative**: Adds a small amount of code for the health check endpoints. Requires configuration in the container orchestration layer.
* **Negative**: Adds a small amount of code for the health check endpoints. Requires configuration in the container orchestration layer.