Configurable log level: ENV + cmd

docker-compose.yaml

@@ -4,6 +4,8 @@ services:
     build: .
     env_file:
       - restic_compose_backup.env
+    # environment:
+    #   - LOG_LEVEL=error
     volumes:
       # Map in docker socket
       - /var/run/docker.sock:/tmp/docker.sock:ro

restic_compose_backup/cli.py

@@ -16,6 +16,7 @@ logger = logging.getLogger(__name__)
 def main():
     """CLI entrypoint"""
     args = parse_args()
+    log.setup(level=args.log_level)
     config = Config()
     containers = RunningContainers()
 
@@ -132,6 +133,12 @@ def parse_args():
         'action',
         choices=['status', 'backup', 'start-backup-process'],
     )
+    parser.add_argument(
+        '--log-level',
+        default=None,
+        choices=list(log.LOG_LEVELS.keys()),
+        help="Log level"
+    )
     return parser.parse_args()
 
 

restic_compose_backup/log.py

@@ -5,9 +5,25 @@ import sys
 logger = logging.getLogger('restic_compose_backup')
 HOSTNAME = os.environ['HOSTNAME']
 
-level = logging.INFO
-logger.setLevel(level)
-ch = logging.StreamHandler(stream=sys.stdout)
-ch.setLevel(level)
-ch.setFormatter(logging.Formatter(f'%(asctime)s - {HOSTNAME} - %(name)s - %(levelname)s - %(message)s'))
-logger.addHandler(ch)
+DEFAULT_LOG_LEVEL = logging.INFO
+LOG_LEVELS = {
+    'debug': logging.DEBUG,
+    'info': logging.INFO,
+    'warning': logging.WARNING,
+    'error': logging.ERROR,
+}
+
+def setup(level: str = 'warning'):
+    """Set up logging"""
+    # Get log level from env if not set directly
+    if level is None:
+        level = os.environ.get('LOG_LEVEL')
+
+    level = level or ""
+    level = LOG_LEVELS.get(level.lower(), DEFAULT_LOG_LEVEL)
+    logger.setLevel(level)
+
+    ch = logging.StreamHandler(stream=sys.stdout)
+    ch.setLevel(level)
+    ch.setFormatter(logging.Formatter(f'%(asctime)s - {HOSTNAME} - %(name)s - %(levelname)s - %(message)s'))
+    logger.addHandler(ch)