add bundle:docker-engine

bundles/docker-engine/files/check_docker_container

@@ -0,0 +1,39 @@
+#!/usr/bin/env python3
+
+from json import loads
+from subprocess import check_output
+from sys import argv
+
+try:
+    container_name = argv[1]
+
+    docker_ps = check_output([
+        'docker',
+        'container',
+        'ls',
+        '--all',
+        '--format',
+        'json',
+        '--filter',
+        f'name={container_name}'
+    ])
+
+    containers = loads(f"[{','.join([l for l in docker_ps.decode().splitlines() if l])}]")
+
+    if not containers:
+        print(f'CRITICAL: container {container_name} not found!')
+        exit(2)
+
+    if len(containers) > 1:
+        print(f'Found more than one container matching {container_name}!')
+        print(docker_ps)
+        exit(3)
+
+    if containers[0]['State'] != 'running':
+        print(f'WARNING: container {container_name} not "running"')
+        exit(2)
+
+    print(f"OK: {containers[0]['Status']}")
+except Exception as e:
+    print(repr(e))
+    exit(2)