Restructure logging

camera-operator.py

@@ -1,5 +1,6 @@
 #!/usr/bin/env python3
 import asyncio
+import logging
 import os
 import yaml
 from base64 import b64decode
@@ -8,6 +9,11 @@ from kubernetes_asyncio import client, config, watch
 from os import path
 from time import time
 from urllib.parse import urlparse
+import useful.logs
+
+useful.logs.setup(
+  json_fields={"msg":"message", "level": "levelname"})
+logger = logging.getLogger()
 
 NAMESPACE = os.environ["MY_POD_NAMESPACE"]
 
@@ -34,7 +40,7 @@ async def apply_changes(item, v1, now, apps_api):
         target = o._replace(netloc="%s:%s@%s" % (username, password, netloc)).geturl()
 
     name = "camera-%s" % item["metadata"]["name"]
-    print("Applying changes for", name, "CRD")
+    logger.info("Applying changes for %s", name)
 
     # Generate Deployment
     body = yaml.safe_load(DEPLOYMENT_BODY.replace("foobar", name))
@@ -47,11 +53,11 @@ async def apply_changes(item, v1, now, apps_api):
     try:
         await apps_api.replace_namespaced_deployment(
             name = name, body = body, namespace=NAMESPACE)
-        print("  * Updated deployment %s/%s" % (NAMESPACE, name))
+        logger.debug("Updated deployment %s/%s", NAMESPACE, name)
     except client.exceptions.ApiException as e:
         await apps_api.create_namespaced_deployment(
             body = body, namespace=NAMESPACE)
-        print("  * Created deployment %s/%s" % (NAMESPACE, name))
+        logger.debug("Created deployment %s/%s", NAMESPACE, name)
 
     # Generate Service
     body = yaml.safe_load(SERVICE_BODY.replace("foobar", name))
@@ -60,11 +66,11 @@ async def apply_changes(item, v1, now, apps_api):
     try:
         await v1.replace_namespaced_service(
             name = name, body = body, namespace=NAMESPACE)
-        print("  * Updated service %s/%s" % (NAMESPACE, name))
+        logger.debug("Updated service %s/%s", NAMESPACE, name)
     except client.exceptions.ApiException as e:
         await v1.create_namespaced_service(
             body = body, namespace=NAMESPACE)
-        print("  * Created service %s/%s" % (NAMESPACE, name))
+        logger.debug("Created service %s/%s", NAMESPACE, name)
 
 
 async def main():
@@ -85,7 +91,7 @@ async def main():
     for i in resp["items"]:
         await apply_changes(i, v1, now, apps_api)
 
-    print("Cleaning up dangling deployments and services")
+    logger.info("Cleaning up dangling deployments and services")
     resp = await v1.list_namespaced_service(NAMESPACE)
     for i in resp.items:
         if not i.metadata.labels:
@@ -94,7 +100,7 @@ async def main():
             continue
         if i.metadata.labels.get("modified") == now:
             continue
-        print("  * Removing service: %s/%s" % (NAMESPACE, i.metadata.name))
+        logger.debug("Removing service: %s/%s", NAMESPACE, i.metadata.name)
         await v1.delete_namespaced_service(i.metadata.name, NAMESPACE)
 
     resp = await apps_api.list_namespaced_deployment(NAMESPACE)
@@ -105,10 +111,10 @@ async def main():
             continue
         if i.metadata.labels.get("modified") == now:
             continue
-        print("  * Removing deployment: %s/%s" % (NAMESPACE, i.metadata.name))
+        logger.debug("Removing deployment: %s/%s", NAMESPACE, i.metadata.name)
         await apps_api.delete_namespaced_deployment(i.metadata.name, NAMESPACE)
 
-    print("Subscribing to updates")
+    logger.info("Subscribing to updates")
 
     async for event in w.stream(api_instance.list_namespaced_custom_object, *args):
         if event["type"] == "ADDED":
@@ -120,13 +126,13 @@ async def main():
             except client.exceptions.ApiException as e:
                 pass
             else:
-                print("Removed service: %s/%s" % (NAMESPACE, name))
+                logger.debug("Removed service: %s/%s", NAMESPACE, name)
             try:
                 await apps_api.delete_namespaced_deployment(name, NAMESPACE)
             except client.exceptions.ApiException as e:
                 pass
             else:
-                print("Removed deployment: %s/%s" % (NAMESPACE, name))
+                logger.debug("Removed deployment: %s/%s", NAMESPACE, name)
 
 
 if __name__ == '__main__':