Decommision control node
https://review.opendev.org/plugins/gitiles/openstack/kolla-ansible/+/refs/changes/85/758085/1/doc/source/user/adding-and-removing-hosts.rst
# Migrage VMs SOURCE_NODE=ctl2-dev openstack server list --all --host ${SOURCE_NODE} # Disable DHCP agents SOURCE_NODE=ctl2-dev TARGET_NODE=ctl1-dev SOURCE_DHCP_ID=$(openstack network agent list --host ${SOURCE_NODE} --agent-type dhcp -f value -c ID) TARGET_SOURCE_DHCP_ID=$(openstack network agent list --host ${TARGET_NODE} --agent-type dhcp -f value -c ID) openstack network list --agent $SOURCE_DHCP_ID -f value -c ID | while read network; do openstack network agent remove network $SOURCE_DHCP_ID $network --dhcp openstack network agent add network $TARGET_SOURCE_DHCP_ID $network --dhcp done # Network openstack network agent list --host ${SOURCE_NODE} -c ID -f value | xargs -i openstack network agent set --disable {} openstack network agent list --host ${SOURCE_NODE} -c ID -f value | xargs -i openstack network agent delete {} # Compute openstack compute service list --host ${SOURCE_NODE} -c ID -f value | xargs -i openstack compute set --disable {} openstack compute service list --host ${SOURCE_NODE} -c ID -f value | xargs -i openstack compute service delete {} # Volme openstack volume service list --host ${SOURCE_NODE} openstack volume service set --disable ${SOURCE_NODE} cinder-scheduler openstack volume service set --disable ${SOURCE_NODE} cinder-backup openstack volume service set --disable ${SOURCE_NODE} cinder-volume openstack volume service set --disable ctl2-dev@ceph1-ec-1 cinder-volume # ssh ${COMPUTE_HOST} docker exec -t neutron_openvswitch_agent neutron-ovs-cleanup