Monitoring (multiple) nginx containers (on the same host)

The agent plugin can be configured to query specific instances and not to auto-detect them.

Use the agent bakery or put a file nginx_status.cfg into /etc/check_mk on your Docker node with the list of instances:

servers = [{'address': '127.0.0.1',
  'page': 'nginx_status',
  'port': 80,
  'protocol': 'http'},
 {'address': '172.16.32.12',
  'page': 'nginx_status',
  'port': 80,
  'protocol': 'http'}]