Remove docker devicemapper support

This has now been removed from upstream docker-ce packages.

```
the devicemapper storage-driver has been deprecated and removed
```

and has shown deprecation warnings for some time.

This change also includes some fixes necessary for CI to pass:

* update the Zuul previous_release variable to 2023.2

Closes-Bug: #2051233
Depends-On: https://review.opendev.org/c/openstack/kolla-ansible/+/906858
Change-Id: I263f59ea77e39accffe4febe0d47e56b35d9800e

ansible/docker-devicemapper.yml

@@ -1,44 +0,0 @@
----
-- name: Verify and configure Docker storage driver
-  hosts: docker
-  tags:
-    - docker
-    - docker-devicemapper
-  tasks:
-    - name: Check for existing Docker configuration using devicemapper
-      block:
-      - name: Query Docker daemon for storage driver
-        docker_host_info:
-        failed_when: false
-        register: docker
-
-      - block:
-        - name: Check for a Docker configuration file
-          become: True
-          stat:
-            path: /etc/docker/daemon.json
-          register: docker_config_file
-
-        - name: Check whether devicemapper is used in configuration file
-          lineinfile:
-            path: /etc/docker/daemon.json
-            regexp: 'storage-driver.*devicemapper'
-            state: absent
-          become: True
-          changed_when: False
-          # `check_mode: True` ensures that we don't modify daemon.json
-          check_mode: True
-          register: devicemapper_docker
-          when: docker_config_file.stat.exists
-        when: not (docker.can_talk_to_docker | default(true))
-
-      - name: Fail if devicemapper is in use while another storage driver was requested
-        fail:
-          msg: "Docker storage driver {{ docker_storage_driver }} was requested, but devicemapper is in use"
-        when: (docker.can_talk_to_docker | default(true) and docker.host_info.Driver == 'devicemapper') or (devicemapper_docker.found | default(0) == 1)
-      when: docker_storage_driver != 'devicemapper'
-
-    - name: Ensure Docker devicemapper storage is configured
-      include_role:
-        name: docker-devicemapper
-      when: docker_storage_driver == 'devicemapper'

ansible/infra-vm-host-configure.yml

@@ -20,5 +20,4 @@
 - import_playbook: "mdadm.yml"
 - import_playbook: "luks.yml"
 - import_playbook: "lvm.yml"
-- import_playbook: "docker-devicemapper.yml"
 - import_playbook: "docker.yml"

ansible/inventory/group_vars/all/compute

@@ -83,11 +83,9 @@ compute_lvm_groups_default: "{{ [compute_lvm_group_data] if compute_lvm_group_da
 compute_lvm_groups_extra: []
 
 # Whether a 'data' LVM volume group should exist on compute hosts. By default
-# this contains a 'docker-volumes' logical volume for Docker volume storage. It
-# will also be used for Docker container and image storage if
-# 'docker_storage_driver' is set to 'devicemapper'. Default is true if
-# 'docker_storage_driver' is set to 'devicemapper', or false otherwise.
-compute_lvm_group_data_enabled: "{{ docker_storage_driver == 'devicemapper' }}"
+# this contains a 'docker-volumes' logical volume for Docker volume storage
+# Default is false.
+compute_lvm_group_data_enabled: false
 
 # Compute LVM volume group for data. See mrlesmithjr.manage_lvm role for
 # format.

ansible/inventory/group_vars/all/controllers

@@ -125,10 +125,8 @@ controller_lvm_groups_extra: []
 
 # Whether a 'data' LVM volume group should exist on controller hosts. By
 # default this contains a 'docker-volumes' logical volume for Docker volume
-# storage. It will also be used for Docker container and image storage if
-# 'docker_storage_driver' is set to 'devicemapper'. Default is true if
-# 'docker_storage_driver' is set to 'devicemapper', or false otherwise.
-controller_lvm_group_data_enabled: "{{ docker_storage_driver == 'devicemapper' }}"
+# storage. Default is false.
+controller_lvm_group_data_enabled: false
 
 # Controller LVM volume group for data. See mrlesmithjr.manage_lvm role for
 # format.

ansible/inventory/group_vars/all/infra-vms

@@ -127,10 +127,8 @@ infra_vm_lvm_groups_extra: []
 
 # Whether a 'data' LVM volume group should exist on the infrastructure vm. By
 # default this contains a 'docker-volumes' logical volume for Docker volume
-# storage. It will also be used for Docker container and image storage if
-# 'docker_storage_driver' is set to 'devicemapper'. Default is true if
-# 'docker_storage_driver' is set to 'devicemapper', or false otherwise.
-infra_vm_lvm_group_data_enabled: "{{ docker_storage_driver == 'devicemapper' }}"
+# storage. Default is false.
+infra_vm_lvm_group_data_enabled: false
 
 # Infrastructure VM LVM volume group for data. See mrlesmithjr.manage_lvm role
 # for format.

ansible/inventory/group_vars/all/seed

@@ -53,11 +53,9 @@ seed_lvm_groups_default: "{{ [seed_lvm_group_data] if seed_lvm_group_data_enable
 seed_lvm_groups_extra: []
 
 # Whether a 'data' LVM volume group should exist on the seed. By default this
-# contains a 'docker-volumes' logical volume for Docker volume storage. It will
-# also be used for Docker container and image storage if
-# 'docker_storage_driver' is set to 'devicemapper'. Default is true if
-# 'docker_storage_driver' is set to 'devicemapper', or false otherwise.
-seed_lvm_group_data_enabled: "{{ docker_storage_driver == 'devicemapper' }}"
+# contains a 'docker-volumes' logical volume for Docker volume storage.
+# Default is false.
+seed_lvm_group_data_enabled: false
 
 # Seed LVM volume group for data. See mrlesmithjr.manage_lvm role for format.
 seed_lvm_group_data:

ansible/inventory/group_vars/all/storage

@@ -95,11 +95,9 @@ storage_lvm_groups_default: "{{ [storage_lvm_group_data] if storage_lvm_group_da
 storage_lvm_groups_extra: []
 
 # Whether a 'data' LVM volume group should exist on storage hosts. By default
-# this contains a 'docker-volumes' logical volume for Docker volume storage. It
-# will also be used for Docker container and image storage if
-# 'docker_storage_driver' is set to 'devicemapper'. Default is true if
-# 'docker_storage_driver' is set to 'devicemapper', or false otherwise.
-storage_lvm_group_data_enabled: "{{ docker_storage_driver == 'devicemapper' }}"
+# this contains a 'docker-volumes' logical volume for Docker volume storage.
+# Default is false.
+storage_lvm_group_data_enabled: false
 
 # Storage LVM volume group for data. See mrlesmithjr.manage_lvm role for
 # format.

ansible/overcloud-host-configure.yml

@@ -22,7 +22,6 @@
 - import_playbook: "luks.yml"
 - import_playbook: "lvm.yml"
 - import_playbook: "swap.yml"
-- import_playbook: "docker-devicemapper.yml"
 - import_playbook: "kolla-ansible-user.yml"
 - import_playbook: "kolla-pip.yml"
 - import_playbook: "kolla-target-venv.yml"

ansible/roles/docker-devicemapper/defaults/main.yml

@@ -1,25 +0,0 @@
----
-# Name of the docker storage driver.
-docker_storage_driver: overlay2
-
-# Name of the docker storage LVM volume group.
-docker_storage_volume_group:
-
-# Name of the docker storage data LVM volume.
-docker_storage_volume_thinpool:
-
-# Size of the docker storage data LVM volume (see lvol module size argument).
-docker_storage_volume_thinpool_size:
-
-# Name of the docker storage metadata LVM volume.
-docker_storage_volume_thinpool_meta:
-
-# Size of the docker storage metadata LVM volume (see lvol module size
-# argument).
-docker_storage_volume_thinpool_meta_size:
-
-# Threshold at which to extend thin-provisioned docker storage volumes.
-docker_storage_thinpool_autoextend_threshold: 80
-
-# Percentage by which to extend thin-provisioned docker storage volumes.
-docker_storage_thinpool_autoextend_percent: 20

ansible/roles/docker-devicemapper/handlers/main.yml

@@ -1,13 +0,0 @@
----
-- name: Ensure the docker storage volume is converted to a thinpool
-  command: >
-    lvconvert -y --zero n -c 512K
-    --thinpool {{ docker_storage_volume_group }}/{{ docker_storage_volume_thinpool }}
-    --poolmetadata {{ docker_storage_volume_group }}/{{ docker_storage_volume_thinpool_meta }}
-  become: True
-
-- name: Ensure the docker storage metadata profile is applied
-  command: >
-    lvchange --metadataprofile docker-thinpool
-    {{ docker_storage_volume_group }}/{{ docker_storage_volume_thinpool }}
-  become: True

ansible/roles/docker-devicemapper/tasks/main.yml

@@ -1,58 +0,0 @@
----
-- name: Query docker daemon information
-  command: "docker info"
-  register: docker_info
-  changed_when: False
-  failed_when: False
-
-- name: Fail when non-devicemapper containers or images exist
-  fail:
-    msg: >
-      Not configuring docker storage in {{ docker_storage_driver }} mode as
-      non-devicemapper containers or images exist.
-  when:
-    - docker_info.rc == 0
-    - "'Data loop file' in docker_info.stdout or 'devicemapper' not in docker_info.stdout"
-    - "'Images: 0' not in docker_info.stdout or 'Containers: 0' not in docker_info.stdout"
-
-- name: Ensure the docker storage metadata profile exists
-  template:
-    src: docker-thinpool.profile.j2
-    dest: /etc/lvm/profile/docker-thinpool.profile
-  become: True
-
-- name: Query LVM thinpool volume
-  command: "lvs {{ docker_storage_volume_group }}/{{ docker_storage_volume_thinpool }}"
-  register: lvs_result
-  changed_when: false
-  failed_when: false
-  become: true
-
-- block:
-    - name: Ensure the docker storage data and metadata volumes exist
-      lvol:
-        vg: "{{ docker_storage_volume_group }}"
-        lv: "{{ item.name }}"
-        size: "{{ item.size }}"
-        shrink: no
-        state: present
-      with_items:
-        - name: "{{ docker_storage_volume_thinpool }}"
-          size: "{{ docker_storage_volume_thinpool_size }}"
-        - name: "{{ docker_storage_volume_thinpool_meta }}"
-          size: "{{ docker_storage_volume_thinpool_meta_size }}"
-      become: True
-
-    - name: Ensure the docker storage volume is converted to a thinpool
-      command: >
-        lvconvert -y --zero n -c 512K
-        --thinpool {{ docker_storage_volume_group }}/{{ docker_storage_volume_thinpool }}
-        --poolmetadata {{ docker_storage_volume_group }}/{{ docker_storage_volume_thinpool_meta }}
-      become: True
-
-    - name: Ensure the docker storage metadata profile is applied
-      command: >
-        lvchange --metadataprofile docker-thinpool
-        {{ docker_storage_volume_group }}/{{ docker_storage_volume_thinpool }}
-      become: True
-  when: lvs_result.rc != 0

ansible/roles/docker-devicemapper/templates/docker-thinpool.profile.j2

@@ -1,4 +0,0 @@
-activation {
-  thin_pool_autoextend_threshold={{ docker_storage_thinpool_autoextend_threshold }}
-  thin_pool_autoextend_percent={{ docker_storage_thinpool_autoextend_percent }}
-}

ansible/roles/docker/defaults/main.yml

@@ -1,7 +1,4 @@
 ---
-docker_storage_driver: overlay2
-docker_storage_volume_group:
-docker_storage_volume_thinpool:
 docker_registry_mirrors: []
 docker_daemon_debug: false
 docker_daemon_mtu: 1500

ansible/roles/docker/tasks/main.yml

@@ -2,4 +2,18 @@
 - import_role:
     name: openstack.kolla.docker
   vars:
-    docker_custom_config: "{{ lookup('template', 'daemon.json.j2') | to_nice_json | indent(2) }}"
+    docker_custom_config: >-
+      {%- set options = {} -%}
+      {%- if docker_daemon_debug | bool -%}
+      {%- set _ = options.update({"debug": docker_daemon_debug | bool}) -%}
+      {%- endif -%}
+      {%- if docker_registry_mirrors | length > 0 -%}
+      {%- set _ = options.update({"registry-mirrors": docker_registry_mirrors}) -%}
+      {%- endif -%}
+      {%- if docker_daemon_mtu -%}
+      {%- set _ = options.update({"mtu": docker_daemon_mtu}) -%}
+      {%- endif -%}
+      {%- if docker_daemon_live_restore | bool -%}
+      {%- set _ = options.update({"live-restore": docker_daemon_live_restore | bool}) -%}
+      {%- endif -%}
+      {{ options }}

ansible/roles/docker/templates/daemon.json.j2

@@ -1,25 +0,0 @@
-{
-{%- if docker_daemon_debug | bool %}
-  "debug": {{ docker_daemon_debug | to_json }},
-{%- endif %}
-{%- if docker_registry_mirrors | length > 0 %}
-  "registry-mirrors": [
-{%- for mirror in docker_registry_mirrors %}
-      "{{ mirror }}"{%- if not loop.last -%},{%- endif %}
-{%- endfor %}
-  ],
-{%- endif %}
-{% if docker_daemon_mtu %}
-  "mtu": {{ docker_daemon_mtu }},
-{% endif %}
-{% if docker_daemon_live_restore %}
-  "live-restore": {{ docker_daemon_live_restore | to_json }},
-{% endif %}
-  "storage-opts": [
-{% if docker_storage_driver == 'devicemapper' %}
-    "dm.thinpooldev=/dev/mapper/{{ docker_storage_volume_group | replace('-', '--') }}-{{ docker_storage_volume_thinpool | replace('-', '--') }}",
-    "dm.use_deferred_removal=true",
-    "dm.use_deferred_deletion=true"
-{% endif %}
-  ]
-}

ansible/seed-host-configure.yml

@@ -21,7 +21,6 @@
 - import_playbook: "mdadm.yml"
 - import_playbook: "luks.yml"
 - import_playbook: "lvm.yml"
-- import_playbook: "docker-devicemapper.yml"
 - import_playbook: "kolla-ansible-user.yml"
 - import_playbook: "kolla-pip.yml"
 - import_playbook: "kolla-target-venv.yml"

doc/source/configuration/reference/hosts.rst

@@ -904,14 +904,11 @@ LVM for Docker
    In Train and earlier releases of Kayobe, the ``data`` volume group was
    always enabled by default.
 
-If the ``devicemapper`` Docker storage driver is in use, the default LVM
-configuration is optimised for it.  The ``devicemapper`` driver requires a thin
-provisioned LVM volume. A second logical volume is used for storing Docker
-volume data, mounted at ``/var/lib/docker/volumes``. Both logical volumes are
-created from a single ``data`` volume group.
+A logical volume for storing Docker volume data, mounted at ``/var/lib/docker/volumes``
+can optionally be created. The logical volume is created in volume group called data.
 
 This configuration is enabled by the following variables, which default to
-``true`` if the ``devicemapper`` driver is in use or ``false`` otherwise:
+``false``:
 
 * ``compute_lvm_group_data_enabled``
 * ``controller_lvm_group_data_enabled``
@@ -919,10 +916,6 @@ This configuration is enabled by the following variables, which default to
 * ``infra_vm_lvm_group_data_enabled``
 * ``storage_lvm_group_data_enabled``
 
-These variables can be set to ``true`` to enable the data volume group if the
-``devicemapper`` driver is not in use. This may be useful where the
-``docker-volumes`` logical volume is required.
-
 To use this configuration, a list of disks must be configured via the following
 variables:
 
@@ -952,18 +945,17 @@ variables, with a default value of 75% (of the volume group's capacity):
 * ``monitoring_lvm_group_data_lv_docker_volumes_size``
 * ``storage_lvm_group_data_lv_docker_volumes_size``
 
-If using a Docker storage driver other than ``devicemapper``, the remaining 25%
-of the volume group can be used for Docker volume data. In this case, the LVM
-volume's size can be increased to 100%:
+You can control the amount of storage assigned to the docker volumes LV by
+using the following variable.
 
 .. code-block:: yaml
    :caption: ``controllers.yml``
 
    controller_lvm_group_data_lv_docker_volumes_size: 100%
 
-If using a Docker storage driver other than ``devicemapper``, it is possible to
-avoid using LVM entirely, thus avoiding the requirement for multiple disks. In
-this case, set the appropriate ``<host>_lvm_groups`` variable to an empty list:
+It is possible to avoid using LVM entirely, thus avoiding the requirement for
+multiple disks. In this case, set the appropriate ``<host>_lvm_groups``
+variable to an empty list:
 
 .. code-block:: yaml
    :caption: ``storage.yml``
@@ -1058,12 +1050,8 @@ Docker Engine
   | ``docker``
 
 The ``docker_storage_driver`` variable sets the Docker storage driver, and by
-default the ``overlay2`` driver is used. If using the ``devicemapper`` driver,
-see :ref:`configuration-hosts-lvm` for information about configuring LVM for
-Docker.
-
-Various options are defined in ``${KAYOBE_CONFIG_PATH}/docker.yml``
-for configuring the ``devicemapper`` storage.
+default the ``overlay2`` driver is used. See :ref:`configuration-hosts-lvm` for
+information about configuring LVM for Docker.
 
 If using an insecure (HTTP) registry, set ``docker_registry_insecure`` to
 ``true``.

etc/kayobe/compute.yml

@@ -76,10 +76,8 @@
 #compute_lvm_groups_extra:
 
 # Whether a 'data' LVM volume group should exist on compute hosts. By default
-# this contains a 'docker-volumes' logical volume for Docker volume storage. It
-# will also be used for Docker container and image storage if
-# 'docker_storage_driver' is set to 'devicemapper'. Default is true if
-# 'docker_storage_driver' is set to 'devicemapper', or false otherwise.
+# this contains a 'docker-volumes' logical volume for Docker volume storage.
+# Default is false.
 #compute_lvm_group_data_enabled:
 
 # Compute LVM volume group for data. See mrlesmithjr.manage_lvm role for

etc/kayobe/controllers.yml

@@ -105,9 +105,8 @@
 
 # Whether a 'data' LVM volume group should exist on controller hosts. By
 # default this contains a 'docker-volumes' logical volume for Docker volume
-# storage. It will also be used for Docker container and image storage if
-# 'docker_storage_driver' is set to 'devicemapper'. Default is true if
-# 'docker_storage_driver' is set to 'devicemapper', or false otherwise.
+# storage.
+# Default is false.
 #controller_lvm_group_data_enabled:
 
 # Controller LVM volume group for data. See mrlesmithjr.manage_lvm role for

etc/kayobe/infra-vms.yml

@@ -106,9 +106,7 @@
 
 # Whether a 'data' LVM volume group should exist on the infrastructure vm. By
 # default this contains a 'docker-volumes' logical volume for Docker volume
-# storage. It will also be used for Docker container and image storage if
-# 'docker_storage_driver' is set to 'devicemapper'. Default is true if
-# 'docker_storage_driver' is set to 'devicemapper', or false otherwise.
+# storage. Default is false.
 #infra_vm_lvm_group_data_enabled:
 
 # Infrastructure VM LVM volume group for data. See mrlesmithjr.manage_lvm role

etc/kayobe/seed.yml

@@ -48,10 +48,8 @@
 #seed_lvm_groups_extra:
 
 # Whether a 'data' LVM volume group should exist on the seed. By default this
-# contains a 'docker-volumes' logical volume for Docker volume storage. It will
-# also be used for Docker container and image storage if
-# 'docker_storage_driver' is set to 'devicemapper'. Default is true if
-# 'docker_storage_driver' is set to 'devicemapper', or false otherwise.
+# contains a 'docker-volumes' logical volume for Docker volume storage.
+# Default is false.
 #seed_lvm_group_data_enabled:
 
 # Seed LVM volume group for data. See mrlesmithjr.manage_lvm role for format.

etc/kayobe/storage.yml

@@ -81,10 +81,8 @@
 #storage_lvm_groups_extra:
 
 # Whether a 'data' LVM volume group should exist on storage hosts. By default
-# this contains a 'docker-volumes' logical volume for Docker volume storage. It
-# will also be used for Docker container and image storage if
-# 'docker_storage_driver' is set to 'devicemapper'. Default is true if
-# 'docker_storage_driver' is set to 'devicemapper', or false otherwise.
+# this contains a 'docker-volumes' logical volume for Docker volume storage.
+# Default is false.
 #storage_lvm_group_data_enabled:
 
 # Storage LVM volume group for data. See mrlesmithjr.manage_lvm role for

playbooks/kayobe-overcloud-host-configure-base/overrides.yml.j2

@@ -107,7 +107,7 @@ controller_luks_devices:
   - name: loopback-crypt
     device: /dev/md0
 
-# Create an LVM volume group for Docker volumes and devicemapper.
+# Create an LVM volume group for Docker volumes.
 controller_lvm_groups:
   - "{% raw %}{{ controller_lvm_group_data }}{% endraw %}"
 
@@ -122,9 +122,6 @@ controller_sysctl_parameters:
 # Disable cloud-init.
 disable_cloud_init: true
 
-# Use devicemapper storage driver.
-docker_storage_driver: devicemapper
-
 # Set Honolulu time.
 timezone: Pacific/Honolulu
 

playbooks/kayobe-overcloud-host-configure-base/tests/test_overcloud_host_configure.py

@@ -144,10 +144,10 @@ def test_cloud_init_is_disabled(host):
     assert host.file("/etc/cloud/cloud-init.disabled").exists
 
 
-def test_docker_storage_driver_is_devicemapper(host):
+def test_docker_storage_driver_is_overlay2(host):
     with host.sudo("stack"):
         info = host.check_output("docker info")
-    assert "devicemapper" in info
+    assert "overlay2" in info
 
 
 @pytest.mark.parametrize('user', ['kolla', 'stack'])

releasenotes/notes/remove-devicemapper-a594e6f24b4885ab.yaml

@@ -0,0 +1,7 @@
+---
+upgrade:
+  - |
+    Support for the ``devicemapper`` Docker storage driver is removed
+    following its removal from Docker Engine 25.0. Operators using
+    ``devicemapper`` should migrate to a supported storage driver before
+    updating Docker to 25.0 or later.

zuul.d/jobs.yaml

@@ -92,7 +92,7 @@
       - ^zuul.d/.*
     vars:
       # Name of the release to upgrade from for upgrade jobs.
-      previous_release: 2023.1
+      previous_release: 2023.2
       logs_dir: "/tmp/logs"
       ansible_collection_kolla_src_dir: "{{ ansible_env.PWD ~ '/' ~ zuul.projects['opendev.org/openstack/ansible-collection-kolla'].src_dir }}"
       kayobe_src_dir: "{{ ansible_env.PWD ~ '/' ~ zuul.projects['opendev.org/openstack/kayobe'].src_dir }}"