Checkmk Werk 13530: FIX node and cluster data source consistency validation

ID: 13530 Title: FIX node and cluster data source consistency validation Component: Setup Level: 1 Class: Bug fix Version: 2.1.0i1 While creating a cluster the configured data sources are checked against each node. If they are not the same the cluster cannot be saved. Previously only the tags IDs {{agent}} or {{snmp}} were checked. If for example a node has the data source {{Checkmk agent}} then the cluster must have the same datasource. Otherwise the error {{The node NODENAME has datasources and 'agent' while the cluster has datasources and 'no-agent'.}} was display. Now auxilary tags are also involved which may be set through other tags or tag groups, eg. the tag {{cmk-agent}} implicilty sets the auxilary tag {{tcp}}. This auxilary tag may also be set through custom tags or tag groups. Details: The tags {{cmk-agent}}, {{all-agents}} and {{special-agents}} contain the auxilary tag {{tcp}} and belong to the default tag group {{agent}}. During validation the exact values {{all-agents}} and {{special-agents}} are checked and after these {{tcp}} is taken into account. This behaviour is equivalent to the decision which data sources are added to a host. Regarding the tag group {{snmp_ds}} the validation checks the tag values {{snmp-v1}}, {{snmp-v2}} and the auxilary tag {{snmp}}.