community.general.lxd_container – Manage LXD Containers

Note

This plugin is part of the community.general collection (version 2.0.1).

To install it use: ansible-galaxy collection install community.general.

To use it in a playbook, specify: community.general.lxd_container.

Synopsis

  • Management of LXD containers

Parameters

Parameter Choices/Defaults Comments
architecture
string
The architecture for the container (e.g. "x86_64" or "i686"). See https://github.com/lxc/lxd/blob/master/doc/rest-api.md#post-1
client_cert
string
The client certificate file path.
If not specified, it defaults to ${HOME}/.config/lxc/client.crt.

aliases: cert_file
client_key
string
The client certificate key file path.
If not specified, it defaults to ${HOME}/.config/lxc/client.key.

aliases: key_file
config
dictionary
The config for the container (e.g. {"limits.cpu": "2"}). See https://github.com/lxc/lxd/blob/master/doc/rest-api.md#post-1
If the container already exists and its "config" value in metadata obtained from GET /1.0/containers/<name> https://github.com/lxc/lxd/blob/master/doc/rest-api.md#10containersname are different, they this module tries to apply the configurations.
The key starts with 'volatile.' are ignored for this comparison.
Not all config values are supported to apply the existing container. Maybe you need to delete and recreate a container.
devices
dictionary
The devices for the container (e.g. { "rootfs": { "path": "/dev/kvm", "type": "unix-char" }). See https://github.com/lxc/lxd/blob/master/doc/rest-api.md#post-1
ephemeral
boolean
    Choices:
  • no
  • yes
Whether or not the container is ephemeral (e.g. true or false). See https://github.com/lxc/lxd/blob/master/doc/rest-api.md#post-1
force_stop
boolean
    Choices:
  • no ←
  • yes
If this is true, the lxd_container forces to stop the container when it stops or restarts the container.
name
string / required
Name of a container.
profiles
list / elements=string
Profile to be used by the container
snap_url
string
Default:
"unix:/var/snap/lxd/common/lxd/unix.socket"
The unix domain socket path when LXD is installed by snap package manager.
source
dictionary
The source for the container (e.g. { "type": "image", "mode": "pull", "server": "https://images.linuxcontainers.org", "protocol": "lxd", "alias": "ubuntu/xenial/amd64" }).
Note that protocol accepts two choices: lxd or simplestreams
state
string
    Choices:
  • started ←
  • stopped
  • restarted
  • absent
  • frozen
Define the state of a container.
target
string
added in 1.0.0 of community.general
For cluster deployments. Will attempt to create a container on a target node. If container exists elsewhere in a cluster, then container will not be replaced or moved. The name should respond to same name of the node you see in lxc cluster list.
timeout
integer
Default:
30
A timeout for changing the state of the container.
This is also used as a timeout for waiting until IPv4 addresses are set to the all network interfaces in the container after starting or restarting.
trust_password
string
The client trusted password.
You need to set this password on the LXD server before running this module using the following command. lxc config set core.trust_password <some random password> See https://www.stgraber.org/2016/04/18/lxd-api-direct-interaction/
If trust_password is set, this module send a request for authentication before sending any requests.
url
string
Default:
"unix:/var/lib/lxd/unix.socket"
The unix domain socket path or the https URL for the LXD server.
wait_for_ipv4_addresses
boolean
    Choices:
  • no ←
  • yes
If this is true, the lxd_container waits until IPv4 addresses are set to the all network interfaces in the container after starting or restarting.

Notes

Note

  • Containers must have a unique name. If you attempt to create a container with a name that already existed in the users namespace the module will simply return as “unchanged”.

  • There are two ways to run commands in containers, using the command module or using the ansible lxd connection plugin bundled in Ansible >= 2.1, the later requires python to be installed in the container which can be done with the command module.

  • You can copy a file from the host to the container with the Ansible ansible.builtin.copy and ansible.builtin.template module and the lxd connection plugin. See the example below.

  • You can copy a file in the created container to the localhost with command=lxc file pull container_name/dir/filename filename. See the first example below.

Examples

# An example for creating a Ubuntu container and install python
- hosts: localhost
  connection: local
  tasks:
    - name: Create a started container
      community.general.lxd_container:
        name: mycontainer
        state: started
        source:
          type: image
          mode: pull
          server: https://images.linuxcontainers.org
          protocol: lxd # if you get a 404, try setting protocol: simplestreams
          alias: ubuntu/xenial/amd64
        profiles: ["default"]
        wait_for_ipv4_addresses: true
        timeout: 600

    - name: Check python is installed in container
      delegate_to: mycontainer
      ansible.builtin.raw: dpkg -s python
      register: python_install_check
      failed_when: python_install_check.rc not in [0, 1]
      changed_when: false

    - name: Install python in container
      delegate_to: mycontainer
      ansible.builtin.raw: apt-get install -y python
      when: python_install_check.rc == 1

# An example for creating an Ubuntu 14.04 container using an image fingerprint.
# This requires changing 'server' and 'protocol' key values, replacing the
# 'alias' key with with 'fingerprint' and supplying an appropriate value that
# matches the container image you wish to use.
- hosts: localhost
  connection: local
  tasks:
    - name: Create a started container
      community.general.lxd_container:
        name: mycontainer
        state: started
        source:
          type: image
          mode: pull
          # Provides current (and older) Ubuntu images with listed fingerprints
          server: https://cloud-images.ubuntu.com/releases
          # Protocol used by 'ubuntu' remote (as shown by 'lxc remote list')
          protocol: simplestreams
          # This provides an Ubuntu 14.04 LTS amd64 image from 20150814.
          fingerprint: e9a8bdfab6dc
        profiles: ["default"]
        wait_for_ipv4_addresses: true
        timeout: 600

# An example for deleting a container
- hosts: localhost
  connection: local
  tasks:
    - name: Delete a container
      community.general.lxd_container:
        name: mycontainer
        state: absent

# An example for restarting a container
- hosts: localhost
  connection: local
  tasks:
    - name: Restart a container
      community.general.lxd_container:
        name: mycontainer
        state: restarted

# An example for restarting a container using https to connect to the LXD server
- hosts: localhost
  connection: local
  tasks:
    - name: Restart a container
      community.general.lxd_container:
        url: https://127.0.0.1:8443
        # These client_cert and client_key values are equal to the default values.
        #client_cert: "{{ lookup('env', 'HOME') }}/.config/lxc/client.crt"
        #client_key: "{{ lookup('env', 'HOME') }}/.config/lxc/client.key"
        trust_password: mypassword
        name: mycontainer
        state: restarted

# Note your container must be in the inventory for the below example.
#
# [containers]
# mycontainer ansible_connection=lxd
#
- hosts:
    - mycontainer
  tasks:
    - name: Copy /etc/hosts in the created container to localhost with name "mycontainer-hosts"
      ansible.builtin.fetch:
        src: /etc/hosts
        dest: /tmp/mycontainer-hosts
        flat: true

# An example for LXD cluster deployments. This example will create two new container on specific
# nodes - 'node01' and 'node02'. In 'target:', 'node01' and 'node02' are names of LXD cluster
# members that LXD cluster recognizes, not ansible inventory names, see: 'lxc cluster list'.
# LXD API calls can be made to any LXD member, in this example, we send API requests to
#'node01.example.com', which matches ansible inventory name.
- hosts: node01.example.com
  tasks:
    - name: Create LXD container
      community.general.lxd_container:
        name: new-container-1
        state: started
        source:
          type: image
          mode: pull
          alias: ubuntu/xenial/amd64
        target: node01

    - name: Create container on another node
      community.general.lxd_container:
        name: new-container-2
        state: started
        source:
          type: image
          mode: pull
          alias: ubuntu/xenial/amd64
        target: node02

Return Values

Common return values are documented here, the following are the fields unique to this module:

Key Returned Description
actions
list / elements=string
success
List of actions performed for the container.

Sample:
["create", "start"]
addresses
dictionary
when state is started or restarted
Mapping from the network device name to a list of IPv4 addresses in the container

Sample:
{'eth0': ['10.155.92.191']}
logs
list / elements=string
when ansible-playbook is invoked with -vvvv.
The logs of requests and responses.

Sample:
(too long to be placed here)
old_state
string
when state is started or restarted
The old state of the container

Sample:
stopped


Authors

  • Hiroaki Nakamura (@hnakamur)