feat(auditor): add health check to docker container

CHANGELOG.md

@@ -21,6 +21,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Added
 - AUDITOR: Add benchmark to measure db performance (#736) ([@raghuvar-vijay](https://github.com/raghuvar-vijay))
+- AUDITOR: Add health check to docker container ([@QuantumDancer](https://github.com/QuantumDancer))
 - API: The health check (`GET /health_check`) now fails with an `500 INTERNAL SERVER ERROR` if no connection can be made to the database (#622) ([@QuantumDancer](https://github.com/QuantumDancer))
 - CI: Add workflow for testing the pyaudtitor source distribution ([@dirksammel](https://github.com/dirksammel))
 - CI: Add workflow for building the Rust documentation ([@dirksammel](https://github.com/dirksammel))

containers/auditor/Dockerfile

@@ -25,7 +25,7 @@ FROM debian:bookworm-slim AS runtime
 WORKDIR /auditor
 
 RUN apt-get update -y \
-&& apt-get install -y --no-install-recommends openssl ca-certificates \
+&& apt-get install -y --no-install-recommends openssl ca-certificates curl \
 # Clean up
 && apt-get autoremove -y \
 && apt-get clean -y \
@@ -35,8 +35,10 @@ COPY --from=builder /auditor/target/release/auditor auditor
 COPY --from=builder /usr/local/cargo/bin/sqlx sqlx
 COPY --from=builder /auditor/migrations migrations
 COPY --from=builder /auditor/containers/auditor/entrypoint.sh entrypoint.sh
+COPY --from=builder /auditor/containers/auditor/health_check.sh health_check.sh
 
 COPY auditor/configuration configuration
 
 ENV AUDITOR_ENVIRONMENT production
+HEALTHCHECK --start-period=3s CMD [ "/auditor/health_check.sh" ]
 ENTRYPOINT ["./entrypoint.sh"]

containers/auditor/health_check.sh

@@ -0,0 +1,20 @@
+#!/bin/bash
+
+run_health_check() {
+  AUDITOR_APPLICATION__PORT="${AUDITOR_APPLICATION__PORT:=8000}"
+  curl "localhost:${AUDITOR_APPLICATION__PORT}/health_check" || exit 1
+}
+
+
+if [ $# -eq 0 ]; then
+  run_health_check
+fi
+
+command="$1"
+shift
+
+if [ "$command" = "auditor" ]; then
+  run_health_check
+else
+  exit 0
+fi