restructured playbooks, cleanup

roles/cobald/tasks/influxdb.yml

@@ -1,11 +1,12 @@
 - name: run influxdb in docker container
   docker_container:
     name: ed-influxdb
-    image: influxdb
+    image: docker.io/library/influxdb:2.0
     hostname: "{{influx_hostname}}"
     domainname: "{{influx_domainname}}"
     networks:
     - name: "{{ cobald_docker_network }}"
+    networks_cli_compatible: True
     published_ports:
     - "{{influx_pubport}}:8086"
     volumes:
@@ -21,7 +22,6 @@
     state: started
     detach: True
     cleanup: True
-    networks_cli_compatible: True
 
 - name: add ansible connection to influxdb container
   add_host: