Hi, Can't add new host to ovirt engine, because the following error: 2019-06-12 12:23:09,664 p=4134 u=engine | TASK [ovirt-host-deploy-facts : Set facts] ************************************* 2019-06-12 12:23:09,684 p=4134 u=engine | ok: [10.35.1.17] => { "ansible_facts": { "ansible_python_interpreter": "/usr/bin/python2", "host_deploy_vdsm_version": "4.40.0" }, "changed": false } 2019-06-12 12:23:09,697 p=4134 u=engine | TASK [ovirt-provider-ovn-driver : Install ovs] ********************************* 2019-06-12 12:23:09,726 p=4134 u=engine | fatal: [10.35.1.17]: FAILED! => {} MSG: The conditional check 'cluster_switch == "ovs" or (ovn_central is defined and ovn_central | ipaddr and ovn_engine_cluster_version is version_compare('4.2', '>='))' failed. The error was: The ipaddr filter requires python's netaddr be installed on the ansible controller The error appears to be in '/home/engine/apps/engine/share/ovirt-engine/playbooks/roles/ovirt-provider-ovn-driver/tasks/configure.yml': line 3, column 5, but may be elsewhere in the file depending on the exact syntax problem. The offending line appears to be: - block: - name: Install ovs ^ here 2019-06-12 12:23:09,728 p=4134 u=engine | PLAY RECAP ********************************************************************* 2019-06-12 12:23:09,728 p=4134 u=engine | 10.35.1.17 : ok=3 changed=0 unreachable=0 failed=1 skipped=0 rescued=0 ignored=0 whats missing!? Thanks -- Ahmad Khiet Red Hat <https://www.redhat.com/> akhiet@redhat.com M: +972-54-6225629 <https://red.ht/sig>