Inspecting and manipulating the inventory¶
Never edit or delete the files
/etc/openstack_deploy/openstack_hostnames_ips.yml. This can
lead to file corruptions, and problems with the inventory: hosts
and container could disappear and new ones would appear,
breaking your existing deployment.
scripts/inventory-manage.py is used to produce human readable
output based on the
The same script can be used to safely remove hosts from the inventory, export the inventory based on hosts, and clear IP addresses from containers within the inventory files.
Operations taken by this script only affect the
/etc/opentstack_deploy/openstack_inventory.json file; any new or removed
information must be set by running playbooks.
Viewing the inventory¶
/etc/openstack_deploy/openstack_inventory.json file is read by default.
An alternative file can be specified with
A list of all hosts can be seen with the
To see a listing of hosts and containers by their group, use
To see all of the containers, use
Removing a host¶
A host can be removed with the
Use the host’s name as an argument.
Removing a group¶
A host group can be removed with the
Use the groups’s name as an argument. You can repeat argument multiple times to remove several groups at once.
Exporting host information¶
Information on a per-host basis can be obtained with the
This JSON output has two top-level keys:
hosts contains a map of a host’s name to its variable and group data.
all contains global network information such as the load balancer IPs and
provider network metadata.
Clearing existing container IP addresses¶
--clear-ips parameter can be used to remove all container IP address
information from the
openstack_inventory.json file. Baremetal hosts will
not be changed.
This will not change the LXC configuration until the associated playbooks are run and the containers restarted, which will result in API downtime.
Any changes to the containers must also be reflected in the deployment’s load balancer.