community.general/docs/docsite/rst/guide_iocage_inventory_aliases.rst
Felix Fontein 3787808e72
iocage inventory guide: adjust filenames, fix typo (#10396)
* Rename iocage inventory guide files.

* Fix typo.
2025-07-13 22:27:31 +02:00

200 lines
7 KiB
ReStructuredText

..
Copyright (c) Ansible Project
GNU General Public License v3.0+ (see LICENSES/GPL-3.0-or-later.txt or https://www.gnu.org/licenses/gpl-3.0.txt)
SPDX-License-Identifier: GPL-3.0-or-later
.. _ansible_collections.community.general.docsite.guide_iocage.guide_iocage_inventory.guide_iocage_inventory_aliases:
Aliases
-------
Quoting :ref:`inventory_aliases`:
The ``inventory_hostname`` is the unique identifier for a host in Ansible, this can be an IP or a hostname, but also just an 'alias' or short name for the host.
As root at the iocage host, stop and destroy all jails:
.. code-block:: console
shell> iocage stop ALL
* Stopping srv_1
+ Executing prestop OK
+ Stopping services OK
+ Tearing down VNET OK
+ Removing devfs_ruleset: 1000 OK
+ Removing jail process OK
+ Executing poststop OK
* Stopping srv_2
+ Executing prestop OK
+ Stopping services OK
+ Tearing down VNET OK
+ Removing devfs_ruleset: 1001 OK
+ Removing jail process OK
+ Executing poststop OK
* Stopping srv_3
+ Executing prestop OK
+ Stopping services OK
+ Tearing down VNET OK
+ Removing devfs_ruleset: 1002 OK
+ Removing jail process OK
+ Executing poststop OK
ansible_client is not running!
shell> iocage destroy -f srv_1 srv_2 srv_3
Destroying srv_1
Destroying srv_2
Destroying srv_3
Create three VNET jails with a DHCP interface from the template *ansible_client*. Use the option ``--count``:
.. code-block:: console
shell> iocage create --short --template ansible_client --count 3 bpf=1 dhcp=1 vnet=1
1c11de2d successfully created!
9d94cc9e successfully created!
052b9557 successfully created!
The names are random. Start the jails:
.. code-block:: console
shell> iocage start ALL
No default gateway found for ipv6.
* Starting 052b9557
+ Started OK
+ Using devfs_ruleset: 1000 (iocage generated default)
+ Configuring VNET OK
+ Using IP options: vnet
+ Starting services OK
+ Executing poststart OK
+ DHCP Address: 10.1.0.137/24
No default gateway found for ipv6.
* Starting 1c11de2d
+ Started OK
+ Using devfs_ruleset: 1001 (iocage generated default)
+ Configuring VNET OK
+ Using IP options: vnet
+ Starting services OK
+ Executing poststart OK
+ DHCP Address: 10.1.0.146/24
No default gateway found for ipv6.
* Starting 9d94cc9e
+ Started OK
+ Using devfs_ruleset: 1002 (iocage generated default)
+ Configuring VNET OK
+ Using IP options: vnet
+ Starting services OK
+ Executing poststart OK
+ DHCP Address: 10.1.0.115/24
Please convert back to a jail before trying to start ansible_client
List the jails:
.. code-block:: console
shell> iocage list -l
+-----+----------+------+-------+------+-----------------+--------------------+-----+----------------+----------+
| JID | NAME | BOOT | STATE | TYPE | RELEASE | IP4 | IP6 | TEMPLATE | BASEJAIL |
+=====+==========+======+=======+======+=================+====================+=====+================+==========+
| 207 | 052b9557 | off | up | jail | 14.2-RELEASE-p3 | epair0b|10.1.0.137 | - | ansible_client | no |
+-----+----------+------+-------+------+-----------------+--------------------+-----+----------------+----------+
| 208 | 1c11de2d | off | up | jail | 14.2-RELEASE-p3 | epair0b|10.1.0.146 | - | ansible_client | no |
+-----+----------+------+-------+------+-----------------+--------------------+-----+----------------+----------+
| 209 | 9d94cc9e | off | up | jail | 14.2-RELEASE-p3 | epair0b|10.1.0.115 | - | ansible_client | no |
+-----+----------+------+-------+------+-----------------+--------------------+-----+----------------+----------+
Set notes. The tag *alias* will be used to create inventory aliases:
.. code-block:: console
shell> iocage set notes="vmm=iocage_02 project=foo alias=srv_1" 052b9557
notes: none -> vmm=iocage_02 project=foo alias=srv_1
shell> iocage set notes="vmm=iocage_02 project=foo alias=srv_2" 1c11de2d
notes: none -> vmm=iocage_02 project=foo alias=srv_2
shell> iocage set notes="vmm=iocage_02 project=bar alias=srv_3" 9d94cc9e
notes: none -> vmm=iocage_02 project=bar alias=srv_3
Update the inventory configuration. Set the option
:ansopt:`community.general.iocage#inventory:inventory_hostname_tag` to :ansval:`alias`. This tag keeps the
value of the alias. The option :ansopt:`community.general.iocage#inventory:get_properties` must be
enabled. For example, ``hosts/02_iocage.yml`` contains:
.. code-block:: yaml
plugin: community.general.iocage
host: 10.1.0.73
user: admin
get_properties: true
inventory_hostname_tag: alias
hooks_results:
- /var/db/dhclient-hook.address.epair0b
compose:
ansible_host: (iocage_hooks.0 == '-') | ternary(iocage_ip4, iocage_hooks.0)
iocage_tags: dict(iocage_properties.notes | split | map('split', '='))
keyed_groups:
- prefix: vmm
key: iocage_tags.vmm
- prefix: project
key: iocage_tags.project
Display tags and groups. Create a playbook ``pb-test-groups.yml`` with the following content:
.. code-block:: yaml+jinja
- hosts: all
remote_user: admin
vars:
ansible_python_interpreter: auto_silent
tasks:
- debug:
var: iocage_tags
- debug:
msg: |
{% for group in groups %}
{{ group }}: {{ groups[group] }}
{% endfor %}
run_once: true
Run the playbook:
.. code-block:: console
shell> ansible-playbook -i hosts/02_iocage.yml pb-test-groups.yml
PLAY [all] **********************************************************************************************************
TASK [debug] ********************************************************************************************************
ok: [srv_1] =>
iocage_tags:
alias: srv_1
project: foo
vmm: iocage_02
ok: [srv_2] =>
iocage_tags:
alias: srv_2
project: foo
vmm: iocage_02
ok: [srv_3] =>
iocage_tags:
alias: srv_3
project: bar
vmm: iocage_02
TASK [debug] ********************************************************************************************************
ok: [srv_1] =>
msg: |-
all: ['srv_1', 'srv_2', 'srv_3']
ungrouped: []
vmm_iocage_02: ['srv_1', 'srv_2', 'srv_3']
project_foo: ['srv_1', 'srv_2']
project_bar: ['srv_3']
PLAY RECAP **********************************************************************************************************
srv_1 : ok=2 changed=0 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0
srv_2 : ok=1 changed=0 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0
srv_3 : ok=1 changed=0 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0