feat(postgresql): add ansible role for postgresql deployment

README.md

@@ -4,5 +4,16 @@
 
 - [`elasticsearch`](roles/elasticsearch/README.md): deploy
   elasticsearch (OSS) in a docker container
+
+- [`redis`](roles/redis/README.md): deploy and configure redis,
+  a fast cache, vector search and NoSQL database.
+
 - [`mariadb`](roles/mariadb/README.md): deploy mariadb
   in a docker container
+
+- [`postgresql`](roles/postgresql/README.md): deploy postgresql,
+  the worlds most advances open-source relational database
+
+- [`valkey`](roles/valkey/README.md): deploy and configure valkey,
+  an open source in-memory data store under BSD license, forked
+  from redis.

galaxy.yml

@@ -1,6 +1,6 @@
 namespace: finallycoffee
 name: databases
-version: 0.1.0
+version: 0.1.1
 readme: README.md
 authors:
 - transcaffeine <transcaffeine@finally.coffee>
@@ -14,5 +14,9 @@ repository: https://git.finally.coffee/finallycoffee/databases
 issues: https://codeberg.org/finallycoffee/ansible-collection-databases/issues
 tags:
   - elasticsearch
+  - redis
   - mariadb
+  - postgresql
+  - postgres
+  - valkey
   - docker

playbooks/postgresql.yml

@@ -0,0 +1,6 @@
+---
+- name: Deploy and configure PostgreSQL
+  hosts: "{{ postgresql_hosts | default('postgresql', true) }}"
+  become: "{{ postgresql_become | default(true, true) }}"
+  roles:
+    - role: finallycoffee.databases.postgresql

playbooks/valkey.yml

@@ -0,0 +1,6 @@
+---
+- name: Deploy and configure valkey
+  hosts: "{{ valkey_hosts | default('valkey', true) }}"
+  become: "{{ valkey_become | default(true, true) }}"
+  roles:
+    - finallycoffee.databases.valkey

roles/elasticsearch/defaults/main.yml

@@ -1,5 +1,5 @@
 ---
-elasticsearch_version: 8.15.3
+elasticsearch_version: "8.17.0"
 elasticsearch_state: present
 
 elasticsearch_base_path: /opt/elasticsearch

roles/elasticsearch/tasks/main.yml

@@ -34,6 +34,5 @@
     volumes: "{{ elasticsearch_container_volumes }}"
     ulimits: "{{ elasticsearch_container_ulimits }}"
     networks: "{{ elasticsearch_container_networks | default(omit, True) }}"
-    purge_networks: "{{ elasticsearch_container_purge_networks | default(omit, True) }}"
     restart_policy: "{{ elasticsearch_container_restart_policy }}"
     state: "{{ elasticsearch_container_state }}"

roles/mariadb/defaults/main.yml

@@ -1,5 +1,5 @@
 ---
-mariadb_version: "10.11.9"
+mariadb_version: "10.11.10"
 mariadb_base_path: /var/lib/mariadb
 mariadb_data_path: >-2
   {{ mariadb_base_path }}/{{ mariadb_version | split('.') | first }}

roles/mariadb/tasks/main.yml

@@ -16,6 +16,5 @@
     volumes: "{{ mariadb_container_volumes }}"
     networks: "{{ mariadb_container_networks | default(omit, true) }}"
     etc_hosts: "{{ mariadb_container_etc_hosts | default(omit, true) }}"
-    purge_networks: "{{ mariadb_container_purge_networks | default(omit, true) }}"
     restart_policy: "{{ mariadb_container_restart_policy }}"
     state: "{{ mariadb_container_state }}"

roles/postgresql/README.md

@@ -0,0 +1,4 @@
+# `finallycoffee.databases.postgresql` ansible role
+
+PostgreSQL is the self proclaimed "world's most advanced" open source relational
+database. This ansible role can deploy and configure postgresql.

roles/postgresql/defaults/main/config.yml

@@ -0,0 +1,17 @@
+---
+postgresql_config_connect_socket: true
+postgresql_config_unix_socket_directories:
+  - "/var/run/postgresql"
+postgresql_config_listen_addresses:
+  - '*'
+postgresql_config_port: 5432
+
+postgresql_base_config:
+  listen_addresses: "{{ postgresql_config_listen_addresses }}"
+  connect_socket: "{{ postgresql_config_connect_socket }}"
+  port: "{{ postgresql_config_port }}"
+postgresql_merged_config: >-2
+  {{ postgresql_base_config | combine(
+    postgresql_config | default({}, true),
+    recursive=True
+  ) }}

roles/postgresql/defaults/main/container.yml

@@ -0,0 +1,73 @@
+---
+postgresql_container_image_registry: docker.io
+postgresql_container_image_namespace: ~
+postgresql_container_image_name: postgres
+postgresql_container_image_tag: ~
+postgresql_container_image_source: pull
+postgresql_container_image_force_source: >-2
+  {{ postgresql_container_image_tag | default(false, true) | bool }}
+postgresql_container_image: >-2
+  {{
+    ([
+      postgresql_container_image_registry | default([], true),
+      postgresql_container_image_namespace | default([], true),
+      postgresql_container_image_name
+    ] | flatten | join('/'))
+    + ':' + postgresql_container_image_tag | default(
+      postgresql_version + (
+        ((postgresql_container_image_flavour is string)
+          and (postgresql_container_image_flavour | length > 0))
+        | ternary(
+          '_' + postgresql_container_image_flavour | default('', true),
+          '',
+        )
+      ),
+      true
+    )
+  }}
+
+postgresql_container_name: "postgresql-{{ postgresql_major_version }}"
+postgresql_container_env: ~
+postgresql_container_user: >-2
+  {{ postgresql_user_id }}:{{ postgresql_user_group_id }}
+postgresql_container_ports: ~
+postgresql_container_labels: ~
+postgresql_container_networks: ~
+postgresql_container_recreate: ~
+postgresql_container_etc_hosts: ~
+postgresql_container_restart_policy: "on-failure"
+postgresql_container_state: >-2
+  {{ (postgresql_state == 'present') | ternary('started', 'absent') }}
+postgresql_container_volumes: ~
+postgresql_container_unix_socket_path: >-2
+  {{ postgresql_config_unix_socket_directories | first }}
+postgresql_container_base_volumes:
+  - "{{ postgresql_container_passwd_file }}:/etc/passwd:ro"
+  - "{{ postgresql_data_path }}:{{ postgresql_container_data_dir }}:Z"
+postgresql_container_config_volumes:
+  - "{{ postgresql_pg_hba_conf_file }}:{{ postgresql_container_data_dir }}/pg_hba.conf:ro"
+  - "{{ postgresql_pg_ident_conf_file }}:{{ postgresql_container_data_dir }}/pg_ident.conf:ro"
+postgresql_container_unix_socket_volumes:
+  - "{{ postgresql_container_unix_socket_path }}:{{ postgresql_container_unix_socket_path }}:rw,rshared"
+postgresql_container_initdb_volumes: >-2
+  {{ postgresql_container_base_volumes
+    + postgresql_container_unix_socket_volumes
+    + (postgresql_container_volumes | default([], true)) }}
+postgresql_container_merged_volumes: >-2
+  {{ postgresql_container_base_volumes
+    + postgresql_container_config_volumes
+    + (postgresql_container_unix_socket_volumes if postgresql_config_connect_socket else [])
+    + (postgresql_container_volumes | default([], true)) }}
+postgresql_systemd_tmpfile_socket_correction_unit_name: >-2
+  {{ postgresql_container_unix_socket_path | split('/') | reject('eq', '') | join('-') }}
+
+# (Memory) performance tuning
+postgresql_container_memory: ~
+postgresql_container_memory_reservation: ~
+postgresql_container_shm_size: ~
+postgresql_container_oom_kill: ~
+postgresql_container_oom_score_adj: ~
+postgresql_container_ulimits: ~
+
+postgresql_container_passwd_file: "{{ postgresql_config_path }}/passwd"
+postgresql_container_data_dir: "/var/lib/postgresql/data"

roles/postgresql/defaults/main/main.yml

@@ -0,0 +1,34 @@
+---
+postgresql_user: postgresql
+postgresql_version: >-2
+  {{ postgresql_versions[postgresql_major_version | string] }}
+postgresql_major_version: 16
+postgresql_versions:
+  "17": "17.2"
+  "16": "16.6"
+  "15": "15.10"
+  "14": "14.15"
+
+postgresql_config_path: >-2
+  /etc/postgresql/{{ postgresql_major_version }}
+postgresql_data_path: >-2
+  /var/lib/postgresql/{{ postgresql_major_version }}
+postgresql_pg_ident_conf_file: >-2
+  {{ postgresql_config_path }}/pg_ident.conf
+postgresql_pg_hba_conf_file: >-2
+  {{ postgresql_config_path }}/pg_hba.conf
+postgresql_admin_role: "{{ postgresql_user }}"
+postgresql_admin_role_contype: local
+postgresql_admin_role_method: peer
+postgresql_admin_local_user: >-2
+  {{ ansible_facts['user_id'] }}
+postgresql_admin_role_mapping_name: >-2
+  {{ postgresql_admin_local_user }}_{{ postgresql_admin_role }}
+postgresql_admin_pg_ident_conf: >-2
+  {{ postgresql_admin_role_mapping_name }}\t{{ postgresql_admin_local_user }}\t{{ postgresql_admin_role }}
+postgresql_admin_pg_hba_conf_options: >-2
+  map={{ postgresql_admin_role_mapping_name }}
+postgresql_superuser_password: ~
+
+postgresql_state: present
+postgresql_deployment_method: docker

roles/postgresql/defaults/main/user.yml

@@ -0,0 +1,10 @@
+---
+postgresql_user_system: true
+postgresql_user_create_home: false
+postgresql_user_groups: ~
+postgresql_user_append: ~
+
+postgresql_user_id: >-2
+  {{ postgresql_user_info.uid | default(postgresql_user, true) }}
+postgresql_user_group_id: >-2
+  {{ postgresql_user_info.group | default(postgresql_user, true) }}

roles/postgresql/handlers/main.yml

@@ -0,0 +1,12 @@
+---
+- name: Restart postgresql container '{{ postgresql_container_name }}' (docker)
+  community.docker.docker_container:
+    name: "{{ postgresql_container_name }}"
+    state: "{{ postgresql_container_state }}"
+    restart: true
+    comparisons:
+      '*': "ignore"
+  when:
+    - postgresql_deployment_method == 'docker'
+    - postgresql_container_state not in ['absent', 'stopped']
+  listen: postgresql_restart

roles/postgresql/meta/main.yml

@@ -0,0 +1,12 @@
+---
+allow_duplicates: true
+dependencies: []
+galaxy_info:
+  role_name: postgresql
+  description: >-2
+    PostgreSQL is the self-proclaimed 'worlds most advanced' open source relational database
+  galaxy_tags:
+    - postgresql
+    - postgres
+    - database
+    - docker

roles/postgresql/tasks/configure.yml

@@ -0,0 +1,49 @@
+---
+- name: Ensure postgresql superuser is set
+  community.postgresql.postgresql_user:
+    name: "{{ postgresql_admin_role }}"
+    password: "{{ postgresql_superuser_password }}"
+    login_host: >-2
+      {{
+        (postgresql_config_unix_socket_directories | first)
+        if postgresql_config_connect_socket else 
+        (postgresql_container_info.container.NetworkSettings.IPAddress)
+      }}
+  register: postgresql_superuser_password_result
+  until: "postgresql_superuser_password_result is succeeded"
+  retries: 10
+  delay: 2
+
+- name: Ensure postgresql configuration is set
+  community.postgresql.postgresql_set:
+    name: "{{ option.key }}"
+    value: "{{ option.value }}"
+    login_host: >-2
+      {{
+        (postgresql_config_unix_socket_directories | first)
+        if postgresql_config_connect_socket else 
+        (postgresql_container_info.container.NetworkSettings.IPAddress)
+      }}
+    login_port: "{{ postgresql_config_port }}"
+    login_password: #TODO
+  loop: "{{ postgresql_merged_options | dict2items }}"
+  loop_control:
+    loop_var: option
+
+- name: Ensure postgresql configuration is reloaded
+  community.postgresql.postgresql_query:
+    query: "SELECT pg_reload_conf();"
+    login_host: #TODO
+    login_port: #TODO
+    login_password: #TODO
+
+- name: Ensure restart handler is fired if required
+  debug:
+    msg: "{{ result.option.key }} changed! Restart required: {{ result.restart_required }}"
+  when: result.changed
+  changed_when: "{{ result.restart_required }}"
+  notify: postgresql_restart
+  loop: "{{ postgresql_config_results }}"
+  loop_control:
+    loop_var: result
+    label: "{{ result.option.name }}"

roles/postgresql/tasks/deploy-docker.yml

@@ -0,0 +1,86 @@
+---
+- name: Ensure postgresql container image '{{ postgresql_container_image }}' is {{ postgresql_state }}
+  community.docker.docker_image:
+    name: "{{ postgresql_container_image }}"
+    state: "{{ postgresql_state }}"
+    source: "{{ postgresql_container_image_source }}"
+    force_source: "{{ postgresql_container_image_force_source }}"
+  register: postgresql_container_image_info
+  until: postgresql_container_image_info is success
+  retries: 5
+  delay: 4
+
+- name: Ensure /etc/passwd for container is {{ postgresql_state }}
+  ansible.builtin.template:
+    src: "postgresql-passwd.j2"
+    dest: "{{ postgresql_container_passwd_file }}"
+    owner: "{{ postgresql_user_id }}"
+    group: "{{ postgresql_user_group_id }}"
+    mode: "0640"
+  when: postgresql_state == 'present'
+
+- name: Ensure systemd unit to correct path permissions is {{ postgresql_state }}
+  ansible.builtin.copy:
+    dest: "/etc/systemd/system/{{ postgresql_systemd_tmpfile_socket_correction_unit_name }}.service"
+    content: |+2
+      [Unit]
+      Description="Ensure permissions on {{ postgresql_container_unix_socket_path }}"
+      After=systemd-tmpfiles-setup.service
+      Before=docker.service
+      
+      [Service]
+      Type=exec
+      RemainAfterExit=yes
+      ExecStart=/bin/bash -c 'mkdir {{ postgresql_container_unix_socket_path }} ||:; chown {{ postgresql_user }}:{{ postgresql_user }} {{ postgresql_container_unix_socket_path }}'
+      
+      [Install]
+      WantedBy=multi-user.target
+  when:
+    - ansible_facts['service_mgr'] == 'systemd'
+    - postgresql_state == 'present'
+
+- name: Ensure systemd is reloaded
+  ansible.builtin.systemd:
+    daemon_reload: true
+  when:
+    - postgresql_systemd_tmpfile_correction_unit.changed
+
+- name: Ensure systemd unit {{ postgresql_systemd_tmpfile_socket_correction_unit_name }} is {{ postgresql_container_state }}
+  ansible.builtin.systemd:
+    name: "{{ postgresql_systemd_tmpfile_socket_correction_unit_name }}.service"
+    state: "{{ postgresql_container_state }}"
+  when: ansible_facts['service_mgr'] == 'systemd'
+
+- name: Ensure systemd unit {{ postgresql_systemd_tmpfile_socket_correction_unit_name }} is {{ postgresql_container_state }}
+  ansible.builtin.systemd:
+    name: "{{ postgresql_systemd_tmpfile_socket_correction_unit_name }}.service"
+    enabled: "{{ postgresql_state == 'present' }}"
+  when: ansible_facts['service_mgr'] == 'systemd'
+
+- name: Initialize database if empty
+  ansible.builtin.include_tasks:
+    file: "initialize-docker.yml"
+  when:
+    - postgresql_state == 'present'
+    # TODO: determine if initialization is needed
+
+- name: Ensure postgresql container '{{ postgresql_container_name }}' is {{ postgresql_container_state }}
+  community.docker.docker_container:
+    name: "{{ postgresql_container_name }}"
+    image: "{{ postgresql_container_image }}"
+    env: "{{ postgresql_container_env | default(omit, true) }}"
+    user: "{{ postgresql_container_user | default(omit, true) }}"
+    ports: "{{ postgresql_container_ports | default(omit, true) }}"
+    labels: "{{ postgresql_container_labels | default(omit, true) }}"
+    volumes: "{{ postgresql_container_merged_volumes }}"
+    recreate: "{{ postgresql_container_recreate | default(omit, true) }}"
+    networks: "{{ postgresql_container_networks | default(omit, true) }}"
+    etc_hosts: "{{ postgresql_container_etc_hosts | default(omit, true) }}"
+    memory: "{{ postgresql_container_memory | default(omit, true) }}"
+    memory_reservation: "{{ postgresql_container_memory_reservation | default(omit, true) }}"
+    oom_killer: "{{ postgresql_container_oom_killer | default(omit, true) }}"
+    oom_score_adj: "{{ postgresql_container_oom_score_adj | default(omit, true) }}"
+    shm_size: "{{ postgresql_container_shm_size | default(omit, true) }}"
+    ulimits: "{{ postgresql_container_ulimits | default(omit, true) }}"
+    restart_policy: "{{ postgresql_container_restart_policy | default(omit, true) }}"
+    state: "{{ postgresql_container_state }}"

roles/postgresql/tasks/initialize-docker.yml

@@ -0,0 +1,48 @@
+---
+- name: Ensure container '{{ postgresql_container_name }}' is {{ postgresql_container_state }} to initialise the database
+  community.docker.docker_container:
+    name: "{{ postgresql_container_name }}"
+    image: "{{ postgresql_container_image }}"
+    env: >-2
+      {{ postgresql_container_env | default({}, true)
+         | combine({'POSTGRES_PASSWORD': postgresql_superuser_password}) }}
+    user: "{{ postgresql_container_user | default(omit, true) }}"
+    ports: "{{ postgresql_container_ports | default(omit, true) }}"
+    labels: "{{ postgresql_container_labels | default(omit, true) }}"
+    volumes: "{{ postgresql_container_initdb_volumes }}"
+    recreate: "{{ postgresql_container_recreate | default(omit, true) }}"
+    networks: "{{ postgresql_container_networks | default(omit, true) }}"
+    etc_hosts: "{{ postgresql_container_etc_hosts | default(omit, true) }}"
+    memory: "{{ postgresql_container_memory | default(omit, true) }}"
+    memory_reservation: "{{ postgresql_container_memory_reservation | default(omit, true) }}"
+    oom_killer: "{{ postgresql_container_oom_killer | default(omit, true) }}"
+    oom_score_adj: "{{ postgresql_container_oom_score_adj | default(omit, true) }}"
+    shm_size: "{{ postgresql_container_shm_size | default(omit, true) }}"
+    ulimits: "{{ postgresql_container_ulimits | default(omit, true) }}"
+    restart_policy: "{{ postgresql_container_restart_policy | default(omit, true) }}"
+    state: "{{ postgresql_container_state }}"
+  register: postgresql_container_info
+
+- name: Wait for container startup
+  block:
+    - name: Wait for container startup (socket)
+      ansible.builtin.wait_for:
+        path: "{{ postgresql_config_unix_socket_directories | first  }}.s.PGSQL.{{ postgresql_config_port }}"
+      when: "postgresql_config_connect_socket | bool"
+    - name: Wait for container startup (port)
+      ansible.builtin.wait_for:
+        host: >-2
+          {{ (pg_addresses == '*') | ternary(
+                 omit,
+                 postgresql_config_listen_addresses | first
+             ) }}
+        port: "{{ postgresql_config_port }}"
+      when: "not postgresql_config_connect_socket | bool"
+      vars:
+        pg_addresses: "{{ postgresql_config_listen_addresses | join(',') }}"
+
+- name: Ensure init container '{{ postgresql_container_name }}' is removed
+  community.docker.docker_container:
+    name: "{{ postgresql_container_name }}"
+    state: absent
+

roles/postgresql/tasks/main.yml

@@ -0,0 +1,67 @@
+---
+- name: Ensure state is valid
+  ansible.builtin.fail:
+    msg: >-2
+      Invalid state '{{ postgresql_state }}'! Supported
+      states are {{ postgresql_states | join(', ') }}.
+  when: postgresql_state not in postgresql_states
+
+- name: Ensure deployment method is valid
+  ansible.builtin.fail:
+    msg: >-2
+      Unsupported deployment method '{{ postgresql_deployment_method }}!
+      Supported deployment methods are {{ postgresql_deployment_methods | join(', ') }}.
+  when: postgresql_deployment_method not in postgresql_deployment_methods
+
+- name: Ensure postgresql user '{{ postgresql_user }}' is {{ postgresql_state }}
+  ansible.builtin.user:
+    name: "{{ postgresql_user }}"
+    state: "{{ postgresql_state }}"
+    system: "{{ postgresql_user_system | default(omit, true) }}"
+    create_home: "{{ postgresql_user_create_home | default(omit, true) }}"
+    groups: "{{ postgresql_user_groups | default(omit, true) }}"
+    append: "{{ postgresql_user_append | default(omit, true) }}"
+  register: postgresql_user_info
+
+- name: Ensure directories are {{ postgresql_state }}
+  ansible.builtin.file:
+    path: "{{ path.name }}"
+    state: "{{ (postgresql_state == 'present') | ternary('directory', 'absent') }}"
+    owner: "{{ path.owner | default(postgresql_user_id, true) }}"
+    group: "{{ path.group | default(postgresql_user_group_id, true) }}"
+    mode: "{{ path.mode | default('0755', true) }}"
+  loop:
+    - name: "{{ postgresql_config_path }}"
+    - name: "{{ postgresql_data_path }}"
+  loop_control:
+    loop_var: path
+    label: "{{ path.name }}"
+
+- name: Check for existing PG_VERSION file
+  ansible.builtin.stat:
+    path: "{{ postgresql_data_path }}/PG_VERSION"
+  register: postgresql_data_dir_version_info
+
+- name: Read existing PG_VERSION file
+  ansible.builtin.slurp:
+    path: "{{ postgresql_data_path }}/PG_VERSION"
+  register: postgresql_data_dir_version_content
+  when:
+    - postgresql_data_dir_version_info.stat.exists
+
+- name: Prevent major version changes
+  ansible.builtin.fail:
+    msg: >-2
+      Mismatched postgresql version for the data directory!
+      Aborting...
+  when:
+    - postgresql_data_dir_version_info.stat.exists
+    - "(postgresql_data_dir_version_content.content | b64decode | int) != (postgresql_major_version | int)"
+
+- name: Prepare authentication and authorization for database admin role
+  ansible.builtin.include_tasks:
+    file: "prepare.yml"
+
+- name: Deploy postgresql using {{ postgresql_deployment_method }}
+  ansible.builtin.include_tasks:
+    file: "deploy-{{ postgresql_deployment_method }}.yml"

roles/postgresql/tasks/prepare.yml

@@ -0,0 +1,33 @@
+---
+- name: Ensure postgresql config files are {{ postgresql_state }}
+  ansible.builtin.lineinfile:
+    path: "{{ file.name }}"
+    insertafter: "{{ file.insert_after | default(omit) }}"
+    insertbefore: "{{ file.insert_before | default(omit) }}"
+    line: "{{ file.line }}"
+    owner: "{{ postgresql_user_id }}"
+    group: "{{ postgresql_user_group_id }}"
+    create: true
+  loop_control:
+    loop_var: file
+    label: "{{ file.name }}"
+  loop:
+    - name: "{{ postgresql_pg_hba_conf_file }}"
+      insert_before: "BOF"
+      line: "# Ansible managed"
+    - name: "{{ postgresql_pg_ident_conf_file }}"
+      insert_before: "BOF"
+      line: "# Ansible managed"
+    - name: "{{ postgresql_pg_ident_conf_file }}"
+      insert_after: "# Ansible managed"
+      line: "{{ ansible_user }}_{{ postgresql_admin_role }}\t{{ ansible_user }}\t{{ postgresql_admin_role }}"
+  when: postgresql_state == 'present'
+
+- name: Configure permissions for postgresql admin role
+  community.postgresql.postgresql_pg_hba:
+    dest: "{{ postgresql_pg_hba_conf_file }}"
+    contype: "{{ postgresql_admin_role_contype }}"
+    users: "{{ postgresql_admin_role }}"
+    method: "{{ postgresql_admin_role_method }}"
+    options: "map={{ ansible_user }}_{{ postgresql_admin_role }}"
+  when: postgresql_state == 'present'

roles/postgresql/templates/postgresql-passwd.j2

@@ -0,0 +1,19 @@
+root:x:0:0:root:/root:/bin/bash
+daemon:x:1:1:daemon:/usr/sbin:/usr/sbin/nologin
+bin:x:2:2:bin:/bin:/usr/sbin/nologin
+sys:x:3:3:sys:/dev:/usr/sbin/nologin
+sync:x:4:65534:sync:/bin:/bin/sync
+games:x:5:60:games:/usr/games:/usr/sbin/nologin
+man:x:6:12:man:/var/cache/man:/usr/sbin/nologin
+lp:x:7:7:lp:/var/spool/lpd:/usr/sbin/nologin
+mail:x:8:8:mail:/var/mail:/usr/sbin/nologin
+news:x:9:9:news:/var/spool/news:/usr/sbin/nologin
+uucp:x:10:10:uucp:/var/spool/uucp:/usr/sbin/nologin
+proxy:x:13:13:proxy:/bin:/usr/sbin/nologin
+www-data:x:33:33:www-data:/var/www:/usr/sbin/nologin
+backup:x:34:34:backup:/var/backups:/usr/sbin/nologin
+list:x:38:38:Mailing List Manager:/var/list:/usr/sbin/nologin
+irc:x:39:39:ircd:/run/ircd:/usr/sbin/nologin
+_apt:x:42:65534::/nonexistent:/usr/sbin/nologin
+nobody:x:65534:65534:nobody:/nonexistent:/usr/sbin/nologin
+postgres:x:{{ postgresql_user_id }}:{{ postgresql_user_group_id }}::/var/lib/postgresql:/bin/bash

roles/postgresql/vars/main.yml

@@ -0,0 +1,6 @@
+---
+postgresql_states:
+  - present
+  - absent
+postgresql_deployment_methods:
+  - docker

roles/redis/README.md

@@ -0,0 +1,47 @@
+# `finallycoffee.databases.redis` ansible role
+
+Redis is the self-proclaimed world's fastest data platform for caching,
+vector search and NoSQL databases. Since version 7.2.4, it is no longer
+considered "Free and open source software" (FOSS), with redis switching
+their license to the "Serverside public license" (SSPL).
+
+Setting the `redis_version` to higher than `7.2.4` means you will deploy
+the SSPL-licensed version to redis.
+
+## Configuration
+
+All container-related options to the `docker_container` ansible module
+are available under the `redis_container_*` namespace, for example use
+`redis_container_ports: [ '127.0.0.1:6379:6370/tcp' ]` to map the
+containers port 6379 to the docker host.
+
+Redis-related config options are either available in the `redis_config_*`
+namespace or can be specified by setting them as a dictionary in
+`redis_config`
+
+### Authentication and authorization
+
+Redis ACL can be specified as an array in the `redis_config_user` variable
+ - see [the redis documentation](https://github.com/redis/redis/blob/unstable/redis.conf#L869)
+for the format. Per default, the `default` user is able to connect without
+any password. To require a password and use a different user, override
+the variable, for example `redis_config_user: [ 'username on +@all -DEBUG ~* >secret' ]`.
+
+## Redis on a unix socket
+
+To make redis available on a unix socket, a directory must be supplied in which the
+socket lives:
+```yaml
+redis_container_socket: /var/run/redis.sock
+redis_container_volumes:
+  - "/path/to/socket/on/host/redis.sock:{{ redis_container_socket }}:z"
+redis_config_unixsocket: "{{ redis_container_socket }}"
+```
+
+## Container specific information
+
+Redis publishes their official container image in both a debian-based and an
+alpine-based variant. Which image should be used can be configured in
+`redis_container_image_flavour`, which defaults to `alpine`, which is smaller
+in size but also includes less related / debugging tools. To use the debian-
+based image, unset the flavour using `redis_container_image_flavour: ~`.

roles/redis/defaults/main/config.yml

@@ -0,0 +1,41 @@
+---
+redis_config_bind:
+  - "127.0.0.1"
+  - "-::1"
+redis_config_protected_mode: true
+redis_config_port: 6379
+redis_config_unixsocket: ~
+redis_config_unixsocketperm: '700'
+redis_config_user:
+  - "default on +@all -DEBUG ~* nopass"
+redis_config_databases: 16
+redis_config_supervised: false
+redis_config_daemonize: false
+redis_config_dbfilename: dump.rdb
+redis_config_dir: "{{ redis_data_path }}"
+redis_config_save: "3600 1 300 100 60 10000"
+redis_config_appendfsync: everysec
+
+redis_base_config:
+  bind: "{{ redis_config_bind | join(' ') }}"
+  "protected-mode": "{{ redis_config_protected_mode | bool | ternary('yes', 'no') }}"
+  port: "{{ redis_config_port }}"
+  user: "{{ redis_config_user }}"
+  databases: "{{ redis_config_databases }}"
+  daemonize: "{{ redis_config_daemonize | bool | ternary('yes', 'no') }}"
+  supervised: "{{ redis_config_supervised | bool | ternary('yes', 'no') }}"
+  save: "{{ redis_config_save }}"
+  dbfilename: "{{ redis_config_dbfilename }}"
+  dir: "{{ redis_config_dir }}"
+  appendfsync: "{{ redis_config_appendfsync }}"
+
+redis_config: ~
+redis_merged_config: >-2
+  {{ redis_base_config
+  | combine(({
+      'unixsocket': redis_config_unixsocket,
+      'unixsocketperm': redis_config_unixsocketperm,
+    })
+    if (redis_config_unixsocket | default(false, true)) else {},
+    recursive=True)
+  | combine(redis_config | default({}, true), recursive=True) }}

roles/redis/defaults/main/container.yml

@@ -0,0 +1,49 @@
+---
+redis_container_image_registry: docker.io
+redis_container_image_namespace: ~
+redis_container_image_name: redis
+redis_container_image_tag: ~
+redis_container_image_flavour: alpine
+redis_container_image_source: pull
+redis_container_image_force_source: >-2
+  {{ redis_container_image_tag | default(false, true) | bool }}
+redis_container_image: >-2
+  {{
+    ([
+      redis_container_image_registry | default([], true),
+      redis_container_image_namespace | default([], true),
+      redis_container_image_name,
+    ] | flatten | join('/'))
+    + ':' +
+    (redis_container_image_tag | default(
+      redis_version + (
+        ((redis_container_image_flavour is string)
+            and (redis_container_image_flavour | length > 0))
+        | ternary('-' + (redis_container_image_flavour | default('')), '')
+      ),
+      true,
+    ))
+  }}
+
+redis_container_name: "redis{{ redis_instance_suffix }}"
+redis_container_env: ~
+redis_container_user: >-2
+  {{ redis_run_user_id }}:{{ redis_run_group_id }}
+redis_container_ports: ~
+redis_container_labels: ~
+redis_container_volumes: ~
+redis_container_merged_volumes: >-2
+  {{ redis_container_base_volumes
+  + redis_container_volumes | default([], true) }}
+redis_container_command:
+  - "redis-server"
+  - "{{ redis_config_file }}"
+redis_container_networks: ~
+redis_container_etc_hosts: ~
+redis_container_dns_servers: ~
+redis_container_restart_policy: "unless-stopped"
+redis_container_state: >-2
+  {{ (redis_state == 'present') | ternary('started', 'absent') }}
+redis_container_base_volumes:
+  - "{{ redis_config_file }}:{{ redis_config_file }}:ro"
+  - "{{ redis_data_path }}:{{ redis_data_path }}:rw"

roles/redis/defaults/main/main.yml

@@ -0,0 +1,15 @@
+---
+redis_version: "7.2.4"
+redis_state: "present"
+redis_instance: ~
+redis_instance_suffix: >-2
+  {{ ((redis_instance is string) and (redis_instance | length > 0))
+    | ternary('-' + (redis_instance | default('', true)), '') }}
+redis_user: >-2
+  redis{{ redis_instance_suffix }}
+
+redis_config_path: "/etc/redis"
+redis_config_file: >-2
+  {{ redis_config_path }}/redis{{ redis_instance_suffix }}.conf
+redis_data_path: "/var/lib/redis{{ redis_instance_suffix }}"
+redis_deployment_method: docker

roles/redis/defaults/main/user.yml

@@ -0,0 +1,10 @@
+---
+redis_run_user_id: >-2
+  {{ redis_user_info.uid | default(redis_user, true) }}
+redis_run_group_id: >-2
+  {{ redis_user_info.group | default(redis_user, true) }}
+redis_user_system: true
+redis_user_create_home: false
+redis_user_groups: ~
+redis_user_append_groups: >-2
+  {{ redis_user_groups | default(true, false) | bool }}

roles/redis/handlers/main.yml

@@ -0,0 +1,11 @@
+---
+- name: Ensure redis container '{{ redis_container_name }}' is restarted
+  community.docker.docker_container:
+    name: "{{ redis_container_name }}"
+    state: "{{ redis_container_state }}"
+    restart: true
+  listen: redis-restart
+  when:
+    - redis_deployment_method == 'docker'
+    - redis_state == 'present'
+  ignore_errors: "{{ ansible_check_mode }}"

roles/redis/meta/main.yml

@@ -0,0 +1,10 @@
+---
+allow_duplicates: true
+dependencies: []
+galaxy_info:
+  role_name: redis
+  description: >-2
+    Deploy and configure redis, a fast caching, vector-search and NoSQL database.
+  galaxy_tags:
+    - redis
+    - docker

roles/redis/tasks/deploy-docker.yml

@@ -0,0 +1,27 @@
+---
+- name: Ensure container image '{{ redis_container_image }}' is {{ redis_state }}
+  community.docker.docker_image:
+    name: "{{ redis_container_image }}"
+    state: "{{ redis_state }}"
+    source: "{{ redis_container_image_source }}"
+    force_source: "{{ redis_container_image_force_source }}"
+  register: redis_container_image_info
+  until: redis_container_image_info is success
+  retries: 5
+  delay: 3
+
+- name: Ensure container '{{ redis_container_name }}' is {{ redis_container_state }}
+  community.docker.docker_container:
+    name: "{{ redis_container_name }}"
+    image: "{{ redis_container_image }}"
+    env: "{{ redis_container_env | default(omit, true) }}"
+    user: "{{ redis_container_user }}"
+    ports: "{{ redis_container_ports | default(omit, true) }}"
+    labels: "{{ redis_container_labels | default(omit, true) }}"
+    command: "{{ redis_container_command }}"
+    volumes: "{{ redis_container_merged_volumes }}"
+    networks: "{{ redis_container_networks | default(omit, true) }}"
+    etc_hosts: "{{ redis_container_etc_hosts | default(omit, true) }}"
+    dns_servers: "{{ redis_container_dns_servers | default(omit, true) }}"
+    restart_policy: "{{ redis_container_restart_policy | default(omit, true) }}"
+    state: "{{ redis_container_state }}"

roles/redis/tasks/main.yml

@@ -0,0 +1,68 @@
+---
+- name: Ensure state is valid
+  ansible.builtin.fail:
+    msg: >-2
+      Unsupported state '{{ redis_state }}'.
+      Supported states are {{ redis_states | join(', ') }}
+  when: redis_state not in redis_states
+
+- name: Ensure deployment method is valid
+  ansible.builtin.fail:
+    msg: >-2
+      Unsupported deployment method '{{ redis_deployment_method }}'!
+      Supported methods are {{ redis_deployment_method | join(', ') }}
+  when: redis_deployment_method not in redis_deployment_methods
+
+- name: Ensure redis user '{{ redis_user }}' is {{ redis_state }}
+  ansible.builtin.user:
+    name: "{{ redis_user }}"
+    state: "{{ redis_state }}"
+    system: "{{ redis_user_system }}"
+    create_home: "{{ redis_user_create_home }}"
+    groups: "{{ redis_user_groups | default(omit, true) }}"
+    append: "{{ redis_user_append_groups | default(omit, true) }}"
+  register: redis_user_info
+
+- name: Ensure redis config file '{{ redis_config_file }}' is {{ redis_state }}
+  ansible.builtin.file:
+    path: "{{ redis_config_file }}"
+    state: "{{ redis_state }}"
+  when: redis_state == 'absent'
+
+- name: Ensure redis host directories are {{ redis_state }}
+  ansible.builtin.file:
+    path: "{{ path.name }}"
+    state: >-2
+      {{ (redis_state == 'present') | ternary('directory', 'absent') }}
+    owner: "{{ path.owner | default(redis_run_user_id) }}"
+    group: "{{ path.group | default(redis_run_group_id) }}"
+    mode: "{{ path.mode | default('0755') }}"
+  loop:
+    - name: "{{ redis_config_path }}"
+    - name: "{{ redis_data_path }}"
+  loop_control:
+    loop_var: "path"
+    label: "{{ path.name }}"
+
+- name: Ensure redis config file '{{ redis_config_file }}' is {{ redis_state }}
+  ansible.builtin.copy:
+    content: |+2
+      {% for tuple in (redis_merged_config | dict2items) %}
+      {% if tuple.value is string  or tuple.value is number %}
+      {{ tuple.key }} {{ tuple.value }}
+      {% else %}
+      {% for value in tuple.value %}
+      {{ tuple.key }} {{ value }}
+      {% endfor %}
+      {% endif %}
+      {% endfor %}
+    dest: "{{ redis_config_file }}"
+    owner: "{{ redis_run_user_id }}"
+    group: "{{ redis_run_group_id }}"
+    mode: "0640"
+  when: redis_state == 'present'
+  notify: redis-restart
+
+- name: Deploy redis using {{ redis_deployment_method }}
+  ansible.builtin.include_tasks:
+    file: "deploy-{{ redis_deployment_method }}.yml"

roles/redis/vars/main.yml

@@ -0,0 +1,6 @@
+---
+redis_states:
+  - present
+  - absent
+redis_deployment_methods:
+  - docker

roles/valkey/README.md

@@ -0,0 +1,13 @@
+# `finallycoffee.databases.valkey` ansible role
+
+Valkey is an open source (BSD 3 licensed), high-performance in-memory key/value
+data store, ideal for workloads like caching or message queues. It has been
+forked from redis 7.2.4 before redis license was changed to SSPL.
+
+Valkey offers compatibility to redis and can be used as a drop-in replacement
+for redis.
+
+## Configuration
+
+For the configuration, see the [`redis` role configuration](../redis/README.md#configuration),
+and swap the `redis_` prefix of all variables for the `valkey_` prefix.

roles/valkey/defaults/main/config.yml

@@ -0,0 +1,41 @@
+---
+valkey_config_bind:
+  - "127.0.0.1"
+  - "-::1"
+valkey_config_protected_mode: true
+valkey_config_port: 6379
+valkey_config_unixsocket: ~
+valkey_config_unixsocketperm: '700'
+valkey_config_user:
+  - "default on +@all -DEBUG ~* nopass"
+valkey_config_databases: 16
+valkey_config_supervised: false
+valkey_config_daemonize: false
+valkey_config_dbfilename: dump.rdb
+valkey_config_dir: "{{ valkey_data_path }}"
+valkey_config_save: "3600 1 300 100 60 10000"
+valkey_config_appendfsync: everysec
+
+valkey_base_config:
+  bind: "{{ valkey_config_bind | join(' ') }}"
+  "protected-mode": "{{ valkey_config_protected_mode | bool | ternary('yes', 'no') }}"
+  port: "{{ valkey_config_port }}"
+  user: "{{ valkey_config_user }}"
+  databases: "{{ valkey_config_databases }}"
+  daemonize: "{{ valkey_config_daemonize | bool | ternary('yes', 'no') }}"
+  supervised: "{{ valkey_config_supervised | bool | ternary('yes', 'no') }}"
+  save: "{{ valkey_config_save }}"
+  dbfilename: "{{ valkey_config_dbfilename }}"
+  dir: "{{ valkey_config_dir }}"
+  appendfsync: "{{ valkey_config_appendfsync }}"
+
+valkey_config: ~
+valkey_merged_config: >-2
+  {{ valkey_base_config
+  | combine(({
+      'unixsocket': valkey_config_unixsocket,
+      'unixsocketperm': valkey_config_unixsocketperm,
+    })
+    if (valkey_config_unixsocket | default(false, true)) else {},
+    recursive=True)
+  | combine(valkey_config | default({}, true), recursive=True) }}

roles/valkey/defaults/main/container.yml

@@ -0,0 +1,49 @@
+---
+valkey_container_image_registry: docker.io
+valkey_container_image_namespace: valkey
+valkey_container_image_name: valkey
+valkey_container_image_tag: ~
+valkey_container_image_flavour: alpine
+valkey_container_image_source: pull
+valkey_container_image_force_source: >-2
+  {{ valkey_container_image_tag | default(false, true) | bool }}
+valkey_container_image: >-2
+  {{
+    ([
+      valkey_container_image_registry | default([], true),
+      valkey_container_image_namespace | default([], true),
+      valkey_container_image_name,
+    ] | flatten | join('/'))
+    + ':' +
+    (valkey_container_image_tag | default(
+      valkey_version + (
+        ((valkey_container_image_flavour is string)
+            and (valkey_container_image_flavour | length > 0))
+        | ternary('-' + (valkey_container_image_flavour | default('')), '')
+      ),
+      true,
+    ))
+  }}
+
+valkey_container_name: "valkey{{ valkey_instance_suffix }}"
+valkey_container_env: ~
+valkey_container_user: >-2
+  {{ valkey_run_user_id }}:{{ valkey_run_group_id }}
+valkey_container_ports: ~
+valkey_container_labels: ~
+valkey_container_volumes: ~
+valkey_container_merged_volumes: >-2
+  {{ valkey_container_base_volumes
+  + valkey_container_volumes | default([], true) }}
+valkey_container_command:
+  - "valkey-server"
+  - "{{ valkey_config_file }}"
+valkey_container_networks: ~
+valkey_container_etc_hosts: ~
+valkey_container_dns_servers: ~
+valkey_container_restart_policy: "unless-stopped"
+valkey_container_state: >-2
+  {{ (valkey_state == 'present') | ternary('started', 'absent') }}
+valkey_container_base_volumes:
+  - "{{ valkey_config_file }}:{{ valkey_config_file }}:ro"
+  - "{{ valkey_data_path }}:{{ valkey_data_path }}:rw"

roles/valkey/defaults/main/main.yml

@@ -0,0 +1,15 @@
+---
+valkey_version: "8.0.1"
+valkey_state: "present"
+valkey_instance: ~
+valkey_instance_suffix: >-2
+  {{ ((valkey_instance is string) and (valkey_instance | length > 0))
+    | ternary('-' + (valkey_instance | default('', true)), '') }}
+valkey_user: >-2
+  valkey{{ valkey_instance_suffix }}
+
+valkey_config_path: "/etc/valkey"
+valkey_config_file: >-2
+  {{ valkey_config_path }}/valkey{{ valkey_instance_suffix }}.conf
+valkey_data_path: "/var/lib/valkey{{ valkey_instance_suffix }}"
+valkey_deployment_method: docker

roles/valkey/defaults/main/user.yml

@@ -0,0 +1,10 @@
+---
+valkey_run_user_id: >-2
+  {{ valkey_user_info.uid | default(valkey_user, true) }}
+valkey_run_group_id: >-2
+  {{ valkey_user_info.group | default(valkey_user, true) }}
+valkey_user_system: true
+valkey_user_create_home: false
+valkey_user_groups: ~
+valkey_user_append_groups: >-2
+  {{ valkey_user_groups | default(true, false) | bool }}

roles/valkey/handlers/main.yml

@@ -0,0 +1,11 @@
+---
+- name: Ensure valkey container '{{ valkey_container_name }}' is restarted
+  community.docker.docker_container:
+    name: "{{ valkey_container_name }}"
+    state: "{{ valkey_container_state }}"
+    restart: true
+  listen: valkey-restart
+  when:
+    - valkey_deployment_method == 'docker'
+    - valkey_state == 'present'
+  ignore_errors: "{{ ansible_check_mode }}"

roles/valkey/meta/main.yml

@@ -0,0 +1,11 @@
+---
+allow_duplicates: true
+dependencies: []
+galaxy_info:
+  role_name: valkey
+  description: >-2
+    An open source, in-memory datastore under BSD 3 license
+  galaxy_tags:
+    - valkey
+    - redis
+    - docker

roles/valkey/tasks/deploy-docker.yml

@@ -0,0 +1,27 @@
+---
+- name: Ensure container image '{{ valkey_container_image }}' is {{ valkey_state }}
+  community.docker.docker_image:
+    name: "{{ valkey_container_image }}"
+    state: "{{ valkey_state }}"
+    source: "{{ valkey_container_image_source }}"
+    force_source: "{{ valkey_container_image_force_source }}"
+  register: valkey_container_image_info
+  until: valkey_container_image_info is success
+  retries: 5
+  delay: 3
+
+- name: Ensure container '{{ valkey_container_name }}' is {{ valkey_container_state }}
+  community.docker.docker_container:
+    name: "{{ valkey_container_name }}"
+    image: "{{ valkey_container_image }}"
+    env: "{{ valkey_container_env | default(omit, true) }}"
+    user: "{{ valkey_container_user }}"
+    ports: "{{ valkey_container_ports | default(omit, true) }}"
+    labels: "{{ valkey_container_labels | default(omit, true) }}"
+    command: "{{ valkey_container_command }}"
+    volumes: "{{ valkey_container_merged_volumes }}"
+    networks: "{{ valkey_container_networks | default(omit, true) }}"
+    etc_hosts: "{{ valkey_container_etc_hosts | default(omit, true) }}"
+    dns_servers: "{{ valkey_container_dns_servers | default(omit, true) }}"
+    restart_policy: "{{ valkey_container_restart_policy | default(omit, true) }}"
+    state: "{{ valkey_container_state }}"

roles/valkey/tasks/main.yml

@@ -0,0 +1,68 @@
+---
+- name: Ensure state is valid
+  ansible.builtin.fail:
+    msg: >-2
+      Unsupported state '{{ valkey_state }}'.
+      Supported states are {{ valkey_states | join(', ') }}
+  when: valkey_state not in valkey_states
+
+- name: Ensure deployment method is valid
+  ansible.builtin.fail:
+    msg: >-2
+      Unsupported deployment method '{{ valkey_deployment_method }}'!
+      Supported methods are {{ valkey_deployment_method | join(', ') }}
+  when: valkey_deployment_method not in valkey_deployment_methods
+
+- name: Ensure valkey user '{{ valkey_user }}' is {{ valkey_state }}
+  ansible.builtin.user:
+    name: "{{ valkey_user }}"
+    state: "{{ valkey_state }}"
+    system: "{{ valkey_user_system }}"
+    create_home: "{{ valkey_user_create_home }}"
+    groups: "{{ valkey_user_groups | default(omit, true) }}"
+    append: "{{ valkey_user_append_groups | default(omit, true) }}"
+  register: valkey_user_info
+
+- name: Ensure valkey config file '{{ valkey_config_file }}' is {{ valkey_state }}
+  ansible.builtin.file:
+    path: "{{ valkey_config_file }}"
+    state: "{{ valkey_state }}"
+  when: valkey_state == 'absent'
+
+- name: Ensure valkey host directories are {{ valkey_state }}
+  ansible.builtin.file:
+    path: "{{ path.name }}"
+    state: >-2
+      {{ (valkey_state == 'present') | ternary('directory', 'absent') }}
+    owner: "{{ path.owner | default(valkey_run_user_id) }}"
+    group: "{{ path.group | default(valkey_run_group_id) }}"
+    mode: "{{ path.mode | default('0755') }}"
+  loop:
+    - name: "{{ valkey_config_path }}"
+    - name: "{{ valkey_data_path }}"
+  loop_control:
+    loop_var: "path"
+    label: "{{ path.name }}"
+
+- name: Ensure valkey config file '{{ valkey_config_file }}' is {{ valkey_state }}
+  ansible.builtin.copy:
+    content: |+2
+      {% for tuple in (valkey_merged_config | dict2items) %}
+      {% if tuple.value is string  or tuple.value is number %}
+      {{ tuple.key }} {{ tuple.value }}
+      {% else %}
+      {% for value in tuple.value %}
+      {{ tuple.key }} {{ value }}
+      {% endfor %}
+      {% endif %}
+      {% endfor %}
+    dest: "{{ valkey_config_file }}"
+    owner: "{{ valkey_run_user_id }}"
+    group: "{{ valkey_run_group_id }}"
+    mode: "0640"
+  when: valkey_state == 'present'
+  notify: valkey-restart
+
+- name: Deploy valkey using {{ valkey_deployment_method }}
+  ansible.builtin.include_tasks:
+    file: "deploy-{{ valkey_deployment_method }}.yml"

roles/valkey/vars/main.yml

@@ -0,0 +1,6 @@
+---
+valkey_states:
+  - present
+  - absent
+valkey_deployment_methods:
+  - docker