Implement health check in Docker

Author: object-Object

Diff for: Dockerfile

@@ -28,3 +28,11 @@ COPY bot/ bot/
 
 # NOTE: this must be a list, otherwise signals (eg. SIGINT) are not forwarded to the bot
 CMD ["/bin/bash", "-c", "python -m ghutils.app"]
+
+HEALTHCHECK \
+    --interval=1m \
+    --timeout=30s \
+    --start-period=2m \
+    --start-interval=15s \
+    --retries=3 \
+    CMD ["python", "-m", "ghutils.health_check"]

Diff for: bot/src/ghutils/health_check.py

@@ -0,0 +1,19 @@
+import os
+import sys
+import traceback
+
+import httpx
+
+
+def main():
+    if (url := os.getenv("HEALTH_CHECK_URL")) is None:
+        raise ValueError("Environment variable not set: HEALTH_CHECK_URL")
+    httpx.get(url).raise_for_status()
+
+
+if __name__ == "__main__":
+    try:
+        main()
+    except Exception:
+        traceback.print_exc()
+        sys.exit(1)

Diff for: codedeploy/compose.override.yml

@@ -10,6 +10,7 @@ services:
       GITHUB__CLIENT_ID: Iv23li0slKG6vf9kOBef
       GITHUB__REDIRECT_URI: https://ghutils.object.gay/api/login
       GITHUB__DEFAULT_INSTALLATION_ID: '54847303'
+      HEALTH_CHECK_URL: https://ghutils.object.gay/api/health
 
   postgres:
     restart: unless-stopped

Diff for: compose.override.yml

@@ -5,6 +5,7 @@ services:
     environment:
       ENVIRONMENT: dev
       API_ROOT_PATH:
+      HEALTH_CHECK_URL: http://localhost:7100/health
     develop:
       watch:
         - action: sync

Diff for: infrastructure/pyproject.toml

@@ -10,7 +10,7 @@ dependencies = [
     "ghutils-common",
     "aws-cdk-lib>=2.158.0",
     "aws-cdk-github-oidc>=2.4.1",
-    "object-ci[aws-cdk] @ git+https://github.com/object-Object/ci",
+    "object-ci[aws-cdk] @ git+https://github.com/object-Object/ci@v0",
 ]
 
 [tool.rye]

Diff for: requirements-dev.lock

@@ -127,7 +127,7 @@ multidict==6.0.5
     # via yarl
 nodeenv==1.9.1
     # via pre-commit
-object-ci @ git+https://github.com/object-Object/ci@681c2a77d4b906df0273e52ff7fe390be4d7b54d
+object-ci @ git+https://github.com/object-Object/ci@d49aad2be03e0c6995be20d505d32aa54a6b7f89
     # via ghutils-infrastructure
 orjson==3.10.5
     # via fastapi

Diff for: requirements.lock

@@ -117,7 +117,7 @@ mdurl==0.1.2
 multidict==6.0.5
     # via aiohttp
     # via yarl
-object-ci @ git+https://github.com/object-Object/ci@681c2a77d4b906df0273e52ff7fe390be4d7b54d
+object-ci @ git+https://github.com/object-Object/ci@d49aad2be03e0c6995be20d505d32aa54a6b7f89
     # via ghutils-infrastructure
 orjson==3.10.5
     # via fastapi