openstack.cloud.openstack inventory – OpenStack inventory source

Note

This inventory plugin is part of the openstack.cloud collection (version 2.2.0).

You might already have this collection installed if you are using the ansible package. It is not included in ansible-core. To check whether it is installed, run ansible-galaxy collection list.

To install it, use: ansible-galaxy collection install openstack.cloud. You need further requirements to be able to use this inventory plugin, see Requirements for details.

To use it in a playbook, specify: openstack.cloud.openstack.

Synopsis

  • Gather servers from OpenStack clouds and add them as Ansible hosts to your inventory.

  • Use YAML configuration file openstack.{yaml,yml} to configure this inventory plugin.

  • Consumes cloud credentials from standard YAML configuration files clouds{,-public}.yaml.

Requirements

The below requirements are needed on the local controller node that executes this inventory.

  • python >= 3.6

  • openstacksdk >= 1.0.0

Parameters

Parameter

Comments

all_projects

boolean

Lists servers from all projects

Choices:

  • false ← (default)

  • true

cache

boolean

Toggle to enable/disable the caching of the inventory’s source data, requires a cache plugin setup to work.

Choices:

  • false ← (default)

  • true

Configuration:

cache_connection

string

Cache connection data or path, read cache plugin documentation for specifics.

Configuration:

cache_plugin

string

Cache plugin to use for the inventory’s source data.

Default: "memory"

Configuration:

cache_prefix

string

Prefix to use for cache plugin files/tables.

Default: "ansible_inventory_"

Configuration:

cache_timeout

integer

Cache duration in seconds.

Default: 3600

Configuration:

clouds_yaml_path

list / elements=string

Override path to clouds.yaml file.

If this value is given it will be searched first.

Search paths for cloud credentials are complemented with files /etc/ansible/openstack.{yaml,yml}.

Default search paths are documented in https://docs.openstack.org/os-client-config/latest/user/configuration.html#config-files.

Configuration:

compose

dictionary

Create vars from jinja2 expressions.

Default: {}

expand_hostvars

boolean

Enrich server facts with additional queries to OpenStack services. This includes requests to Cinder and Neutron which can be time-consuming for clouds with many servers.

Default value of expand_hostvars is opposite of the default value for option expand_hostvars in legacy openstack.py inventory script.

Choices:

  • false ← (default)

  • true

fail_on_errors

boolean

Whether the inventory script fails, returning no hosts, when connection to a cloud failed, for example due to bad credentials or connectivity issues.

When fail_on_errors is false this inventory script will return all hosts it could fetch from clouds on a best effort basis.

Default value of fail_on_errors is opposite of the default value for option fail_on_errors in legacy openstack.py inventory script.

Choices:

  • false ← (default)

  • true

groups

dictionary

Add hosts to group based on Jinja2 conditionals.

Default: {}

inventory_hostname

string

What to register as inventory hostname.

When set to uuid the ID of a server will be used and a group will be created for a server name.

When set to name the name of a server will be used. When multiple servers share the same name, then the servers IDs will be used.

Default value of inventory_hostname is opposite of the default value for option use_hostnames in legacy openstack.py inventory script.

Choices:

  • "name" ← (default)

  • "uuid"

keyed_groups

list / elements=dictionary

Add hosts to group based on the values of a variable.

Default: []

default_value

string

added in ansible-core 2.12

The default value when the host variable’s value is an empty string.

This option is mutually exclusive with keyed_groups[].trailing_separator.

key

string

The key from input dictionary used to generate groups.

parent_group

string

parent group for keyed group.

prefix

string

A keyed group name will start with this prefix.

Default: ""

separator

string

separator used to build the keyed group name.

Default: "_"

trailing_separator

boolean

added in ansible-core 2.12

Set this option to false to omit the keyed_groups[].separator after the host variable when the value is an empty string.

This option is mutually exclusive with keyed_groups[].default_value.

Choices:

  • false

  • true ← (default)

leading_separator

boolean

added in ansible-core 2.11

Use in conjunction with keyed_groups.

By default, a keyed group that does not have a prefix or a separator provided will have a name that starts with an underscore.

This is because the default prefix is "" and the default separator is "_".

Set this option to false to omit the leading underscore (or other separator) if no prefix is given.

If the group name is derived from a mapping the separator is still used to concatenate the items.

To not use a separator in the group name at all, set the separator for the keyed group to an empty string instead.

Choices:

  • false

  • true ← (default)

legacy_groups

boolean

Automatically create groups from host variables.

Choices:

  • false

  • true ← (default)

only_clouds

list / elements=string

List of clouds in clouds.yaml which will be contacted to use instead of using all clouds.

Default: []

plugin

string / required

Token which marks a given YAML configuration file as a valid input file for this inventory plugin.

Choices:

  • "openstack"

  • "openstack.cloud.openstack"

private

boolean

Use private interfaces of servers, if available, when determining ip addresses for Ansible hosts.

Using private helps when running Ansible from a server in the cloud and one wants to ensure that servers communicate over private networks only.

Choices:

  • false ← (default)

  • true

show_all

boolean

Whether all servers should be listed or not.

When show_all is false then only servers with a valid ip address, regardless it is private or public, will be listed.

Choices:

  • false ← (default)

  • true

strict

boolean

If yes make invalid entries a fatal error, otherwise skip and continue.

Since it is possible to use facts in the expressions they might not always be available and we ignore those errors by default.

Choices:

  • false ← (default)

  • true

use_extra_vars

boolean

added in ansible-core 2.11

Merge extra vars into the available variables for composition (highest precedence).

Choices:

  • false ← (default)

  • true

Configuration:

use_names

boolean

When use_names is false, its default value, then a server’s first floating ip address will be used for both facts ansible_host and ansible_ssh_host. When no floating ip address is attached to a server, then its first non-floating ip addresses is used instead. If no addresses are attached to a server, then both facts will not be defined.

When use_names is true, then the server name will be for both ansible_host and ansible_ssh_host facts. This is useful for jump or bastion hosts where each server name is actually a server’s FQDN.

Choices:

  • false ← (default)

  • true

Examples

# Create a file called openstack.yaml, add the following content and run
# $> ansible-inventory --list -vvv -i openstack.yaml
plugin: openstack.cloud.openstack

all_projects: false
expand_hostvars: true
fail_on_errors: true
only_clouds:
  - "devstack-admin"
strict: true

Authors

  • OpenStack Ansible SIG

Hint

Configuration entries for each entry type have a low to high priority order. For example, a variable that is lower in the list will override a variable that is higher up.