devops(docker): add healthchecks for db and api services (#10)

Dockerfile

@@ -9,7 +9,7 @@ RUN apt-get update && apt-get install -y pkg-config libssl-dev && rm -rf /var/li
 RUN cargo build --release
 
 FROM debian:bookworm-slim
-RUN apt-get update && apt-get install -y ca-certificates libssl3 && rm -rf /var/lib/apt/lists/*
+RUN apt-get update && apt-get install -y ca-certificates libssl3 curl && rm -rf /var/lib/apt/lists/*
 COPY --from=builder /app/target/release/stellarsend /usr/local/bin/
 EXPOSE 3000
 CMD ["stellarsend"]

docker-compose.yml

@@ -4,13 +4,27 @@ services:
     ports: ["3000:3000"]
     env_file:
       - .env
-    depends_on: [db]
+    depends_on:
+      db:
+        condition: service_healthy
+    healthcheck:
+      test: ["CMD", "curl", "-f", "http://localhost:3000/health"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+      start_period: 30s
   db:
     image: postgres:16-alpine
     environment:
       POSTGRES_DB: stellarsend
       POSTGRES_USER: stellarsend
       POSTGRES_PASSWORD: password
     volumes: [pgdata:/var/lib/postgresql/data]
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U stellarsend -d stellarsend"]
+      interval: 5s
+      timeout: 5s
+      retries: 10
+      start_period: 10s
 volumes:
-  pgdata:
+  pgdata: