Checkmk Werk 13849: Add Check_MK service for hosts without passive services

ID: 13849 Title: Add Check_MK service for hosts without passive services Component: Checks & agents Level: 1 Class: New feature Version: 2.2.0i1 Previously we only added the <i>Check_MK</i> service if the host had no passive services. We now add it always, unless the host is a ping-only host. Originally the main job of the <i>Check_MK</i> service was to trigger the passive services, so it was not needed for hosts without them. However, for a while now the service also reports the success of the data sources, which may be relevant for hosts without passive services as well. In particular, a failing data source may be the reason why we don't see passive services in the first place. For example there are special agents that only create services on piggybacked hosts. If you configure such an agent on a dedicated host, you would not have seen the status of the agent at all.