refactor!(keycloak): use podman quadlet setup

playbooks/keycloak.yml

@@ -1,25 +1,17 @@
----
-# Infrastructure
-# Ansible instructions to deploy the infrastructure
-# Copyright (C) 2019-2020  Christoph (Sheogorath) Kern
-# Copyright (C) 2020       Saibotk
-#
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, version 3 of the License.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+- name: Install Keycloak.
 
-- name: Install & configure Keycloak
   hosts: keycloak
+
   roles:
-    - docker
-    - docker_cleanup
-    - traefik
-    - keycloak
+    - role: podman
+      become: true
+      tags:
+        - always
+        - podman
+    - role: caddy
+      become: true
+      tags:
+        - always
+        - caddy
+    - role: keycloak
+      become: true

roles/keycloak/README.md

@@ -1,35 +0,0 @@
-Keycloak
-=========
-
-This will setup a [Keycloak](https://www.keycloak.org) instance using their official docker container and traefik as a reverse proxy.
-
-Requirements
-------------
-
-You will need to have docker, docker-compose and traefik installed or declared as dependencies with their respective roles.
-
-**This role assumes that you have setup traefik with an endpoint called `websecure`.**
-
-Role Variables
---------------
-
-**Please look at the [defaults/main.yml](defaults/main.yml) for all available variables and their description.**
-
-**Note: Lines that are commented out via `#` are usually still valid/used variables, but they are not defined by default, so they might enable a feature, when uncommenting/defining them!**  
-
-### Global variables, that are used:
-
-- `proxy_network`: Defined by the local traefik installation, this is the shared proxy network used by traefik to reach the containers. (optional)
-- `proxy_hiddenservice`: Defined by the local traefik installation, this is used to generate the alt-svc header for the alternative Tor domain. (optional)
-
-Dependencies
-------------
-
-- docker
-- docker-compose
-- traefik
-
-License
--------
-
-GPL-3.0-only

roles/keycloak/defaults/main.yml

@@ -1,58 +1,41 @@
----
-# Default variables for the keycloak role
+keycloak_install_dir: "/opt/keycloak"
 
-# Infrastructure
-# Ansible instructions to deploy the infrastructure
-# Copyright (C) 2019-2020  Christoph (Sheogorath) Kern
-# Copyright (C) 2020       Alexander Wellbrock
-# Copyright (C) 2020       Saibotk
-#
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, version 3 of the License.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+keycloak_domains:
+  - keycloak.example.com
+  - keycloak2.example.com
 
-# Install locations
-keycloak_install_location: /srv/keycloak
-keycloak_database_location: "{{ keycloak_install_location }}/database"
-
-# The keycloak image to use
-keycloak_baseimage: quay.io/keycloak/keycloak
-
-# The keycloak & postgres version
-# !!! Don't just update the postgres version, instead backup first and check if you need to migrate !!!
+keycloak_containerimage: quay.io/keycloak/keycloak
 # renovate: depName=quay.io/keycloak/keycloak
-keycloak_version: 26.0.5
+keycloak_image_tag: "26.1.0"
+
+keycloak_postgres_containerimage: docker.io/library/postgres
 # renovate: depName=docker.io/library/postgres
-keycloak_postgres_version: 17.0
+keycloak_postgres_image_tag: "17.2-alpine"
 
-# The image tags
-keycloak_image_version: "{{ keycloak_version }}"
-keycloak_postgres_image_version: "{{ keycloak_postgres_version }}-alpine"
+keycloak_selinux_level: "{{ omit }}"
 
-# The log level settings for keycloak
-keycloak_log_level: "ERROR"
-keycloak_root_log_level: "ERROR"
+# Default JVM params of Keycloak need at least 512mb of ram
+keycloak_memory_low: 512m
+keycloak_memory_high: 0
+keycloak_swap_max: -1
 
-# The certresolver traefik should use for this domain
-keycloak_traefik_certresolver: letsencrypt_http
+keycloak_postgres_memory_low: 256m
+keycloak_postgres_memory_high: 0
+keycloak_postgres_swap_max: -1
 
-# The domain which traefik will serve keycloak under
-keycloak_domain: keycloak.example.com
+keycloak_database_password: "{{ lookup('passwordstore', 'keycloak.example.com/database create=true') }}"
 
-# The database credentials.
-keycloak_database_user: "keycloak"
-keycloak_database_password: "{{ lookup('passwordstore', keycloak_domain + '/database' + ' create=true') }}"
+keycloak_environment_vars:
+  KC_HOSTNAME_STRICT: "true"
+  # Unless you include 'https://' HTTPS won't be enforced
+  KC_HOSTNAME: "https://{{ keycloak_domains | first }}"
+  KC_LOG_LEVEL: ERROR
+  KC_DB_URL_HOST: keycloak-postgres
+  KC_DB_URL_DATABASE: keycloak
+  KC_DB_USERNAME: "keycloak"
+  KC_DB_PASSWORD: "{{ keycloak_database_password }}"
 
-# The default welcome theme keycloak will use
-keycloak_theme_welcome: "{{ omit }}"
-
-# The SELinux level that should be used for the postgres data folder/container
-keycloak_postgres_selinux_level: "{{ omit }}"
+keycloak_postgres_environment_vars:
+  POSTGRES_DB: "keycloak"
+  POSTGRES_USER: "keycloak"
+  POSTGRES_PASSWORD: "{{ keycloak_database_password }}"

roles/keycloak/handlers/main.yml

@@ -0,0 +1,25 @@
+- name: Apply new SELinux file context to filesystem.
+  ansible.builtin.command: "restorecon -irF {{ keycloak_install_dir }}"
+  become: true
+  listen: "keycloak selinux context changed"
+
+- name: Restart keycloak service.
+  ansible.builtin.systemd:
+    state: restarted
+    name: keycloak.service
+    daemon_reload: true
+  become: true
+  listen:
+    - "keycloak service changed"
+    - "keycloak network changed"
+
+- name: Restart keycloak postgres service.
+  ansible.builtin.systemd:
+    state: restarted
+    name: keycloak-postgres.service
+    daemon_reload: true
+  become: true
+  listen:
+    - "keycloak postgres service changed"
+    - "keycloak selinux context changed"
+    - "keycloak network changed"

roles/keycloak/meta/main.yml

@@ -1,44 +1,21 @@
 galaxy_info:
-  author: saibotk
-  description: "Installs Keycloak via the official container and traefik."
+  author: histalek
+  description: Deploy keycloak with podman and systemd.
+
+  issue_tracker_url: https://git.histalek.de/histalek-de/infrastructure/-/issues
+
   license: GPL-3.0-only
-  min_ansible_version: "2.9"
-  standalone: true
+
+  min_ansible_version: "2.10"
 
   platforms:
-    - name: EL
-      versions:
-        - all
-    - name: GenericUNIX
-      versions:
-        - all
     - name: Fedora
       versions:
-        - all
-    - name: opensuse
-      versions:
-        - all
-    - name: GenericBSD
-      versions:
-        - all
-    - name: FreeBSD
-      versions:
-        - all
-    - name: Ubuntu
-      versions:
-        - all
-    - name: SLES
-      versions:
-        - all
-    - name: GenericLinux
-      versions:
-        - all
-    - name: Debian
-      versions:
-        - all
+        - "39"
+        - "40"
+
+  standalone: true
 
   galaxy_tags: []
 
-dependencies:
-  - role: docker
-  - role: traefik
+dependencies: []

roles/keycloak/tasks/main.yml

@@ -1,78 +1,132 @@
----
-# Tasks file for the keycloak role
-
-# Infrastructure
-# Ansible instructions to deploy the infrastructure
-# Copyright (C) 2019-2020  Christoph (Sheogorath) Kern
-# Copyright (C) 2020       Alexander Wellbrock
-# Copyright (C) 2020       Saibotk
-#
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, version 3 of the License.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
 - name: Update default SELinux contexts
   community.general.sefcontext:
-    target: "{{ item }}(/.*)?"
+    target: "{{ keycloak_install_dir }}/postgres(/.*)?"
     setype: "container_file_t"
-    selevel: "{{ keycloak_postgres_selinux_level }}"
+    selevel: "{{ keycloak_selinux_level }}"
     state: present
-  with_items:
-    - "{{ keycloak_database_location }}"
   become: true
+  notify: "keycloak selinux context changed"
 
-- name: Create install directory
+- name: Create keycloak directories.
   ansible.builtin.file:
-    path: "{{ item }}"
-    state: directory
-    mode: "0700"
+    path: "{{ keycloak_install_dir }}"
     owner: "root"
     group: "root"
-  with_items:
-    - "{{ keycloak_install_location }}"
-  tags:
-    - keycloak
-  become: true
-
-- name: Create data directory
-  ansible.builtin.file: # noqa risky-file-permissions # Container manages permissions on its own
-    path: "{{ item }}"
     state: directory
-    setype: "container_file_t"
-    selevel: "{{ keycloak_postgres_selinux_level }}"
-  with_items:
-    - "{{ keycloak_database_location }}"
-  tags:
-    - keycloak
+    mode: "0700"
   become: true
 
-- name: Deploy docker-compose.yml
+- name: Ensure keycloak postgres directory exists.
+  block:
+    - name: Stat keycloak postgres dir.
+      ansible.builtin.stat:
+        path: "{{ keycloak_install_dir }}/postgres"
+      become: true
+      register: keycloak_stat_postgres_dir
+
+    - name: Create keycloak postgres directory.
+      ansible.builtin.file:
+        path: "{{ keycloak_install_dir }}/postgres"
+        owner: "{{ keycloak_stat_postgres_dir.stat.uid | default('root') }}"
+        group: "{{ keycloak_stat_postgres_dir.stat.gid | default('root') }}"
+        state: directory
+        mode: "0700"
+        setype: "container_file_t"
+        selevel: "{{ keycloak_selinux_level }}"
+      become: true
+
+- name: Deploy keycloak environment file.
   ansible.builtin.template:
-    src: docker-compose.yml
-    dest: "{{ keycloak_install_location }}/docker-compose.yml"
+    src: keycloak.env.j2
+    dest: "{{ keycloak_install_dir }}/keycloak.env"
     mode: "0600"
     owner: "root"
     group: "root"
-    validate: docker compose -f %s config -q
-  tags:
-    - docker
-    - keycloak
+  become: true
+  notify: "keycloak service changed"
+
+- name: Deploy keycloak postgres environment file.
+  ansible.builtin.template:
+    src: keycloak-postgres.env.j2
+    dest: "{{ keycloak_install_dir }}/keycloak-postgres.env"
+    mode: "0600"
+    owner: "root"
+    group: "root"
+  become: true
+  notify: "keycloak postgres service changed"
+
+- name: Ensure container image is present on the host.
+  containers.podman.podman_image:
+    name: "{{ item.name }}"
+    state: present
+    tag: "{{ item.tag }}"
+  loop:
+    - name: "{{ keycloak_containerimage }}"
+      tag: "{{ keycloak_image_tag }}"
+    - name: "{{ keycloak_postgres_containerimage }}"
+      tag: "{{ keycloak_postgres_image_tag }}"
   become: true
 
-- name: Compose keycloak
-  community.docker.docker_compose_v2:
-    state: present
-    project_src: "{{ keycloak_install_location }}"
-    pull: always
-    remove_orphans: true
-  tags:
-    - keycloak
+- name: Add caddy config file.
+  block:
+    - name: Check caddy config dir.
+      ansible.builtin.stat:
+        path: "{{ caddy_install_dir }}/config"
+      become: true
+      register: caddy_stat_config_dir
+
+    - name: Template caddy config for keycloak.
+      ansible.builtin.template:
+        src: keycloak.caddy.j2
+        dest: "{{ caddy_install_dir }}/config/keycloak.caddy"
+        mode: "0600"
+        setype: "container_file_t"
+        selevel: "{{ caddy_selinux_level }}"
+        owner: "{{ caddy_stat_config_dir.stat.uid }}"
+        group: "{{ caddy_stat_config_dir.stat.gid }}"
+      notify: "caddy config changed"
+      become: true
+
+- name: Create keycloak container file.
+  ansible.builtin.template:
+    src: keycloak.container.j2
+    dest: "/etc/containers/systemd/keycloak.container"
+    owner: "root"
+    group: "root"
+    mode: "0644"
+  become: true
+  notify: "keycloak service changed"
+
+- name: Create keycloak postgres container file.
+  ansible.builtin.template:
+    src: keycloak-postgres.container.j2
+    dest: "/etc/containers/systemd/keycloak-postgres.container"
+    owner: "root"
+    group: "root"
+    mode: "0644"
+  become: true
+  notify: "keycloak postgres service changed"
+
+- name: Create keycloak network file.
+  ansible.builtin.template:
+    src: keycloak.network.j2
+    dest: /etc/containers/systemd/keycloak.network
+    owner: root
+    group: root
+    mode: "0644"
+  become: true
+  notify: "keycloak network changed"
+
+- name: Flush handlers
+  ansible.builtin.meta: flush_handlers
+
+- name: Ensure keycloak services are started.
+  ansible.builtin.systemd:
+    state: started
+    enabled: true
+    name: "{{ item }}"
+    daemon_reload: true
+  loop:
+    - keycloak.service
+    - keycloak-postgres.service
   become: true

roles/keycloak/templates/docker-compose.yml

@@ -1,90 +0,0 @@
-{{ ansible_managed | comment }}
-
-# Infrastructure
-# Ansible instructions to deploy the infrastructure
-# Copyright (C) 2019-2020  Christoph (Sheogorath) Kern
-# Copyright (C) 2020       Saibotk
-#
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, version 3 of the License.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-version: '2'
-services:
-  keycloak:
-    image: {{ keycloak_baseimage }}:{{ keycloak_image_version }}
-    mem_limit: 1gb
-    memswap_limit: 1280mb
-    security_opt:
-      - no-new-privileges
-    labels:
-      - "traefik.http.routers.keycloak.rule=Host(`{{ keycloak_domain }}`) && PathPrefix(`/`)"
-      - "traefik.http.routers.keycloak.entrypoints=websecure"
-      - "traefik.http.routers.keycloak.tls=true"
-      - "traefik.http.routers.keycloak.tls.certresolver={{ keycloak_traefik_certresolver }}"
-      - "traefik.http.routers.keycloak.middlewares=keycloak,compress"
-      - "traefik.http.middlewares.keycloak.headers.sslredirect=true"
-      - "traefik.http.middlewares.keycloak.headers.stsSeconds=63072000"
-
-      - "traefik.enable=true"
-{% if proxy_network is defined %}
-      - "traefik.docker.network={{ proxy_network }}"
-{% endif %}
-
-    environment:
-      - "KC_PROXY_HEADERs=xforwarded"
-      - "KC_HTTP_ENABLED=true"
-      - "KC_FEATURES=scripts,persistent-user-sessions"
-      - "KC_HOSTNAME_STRICT=true"
-      - "KC_HOSTNAME=https://{{ keycloak_domain }}"
-      - "KC_LOGLEVEL={{ keycloak_log_level }}"
-      - "KC_DB_URL_HOST=database"
-      - "KC_DB_USERNAME={{ keycloak_database_user }}"
-      - "KC_DB_PASSWORD={{ keycloak_database_password }}"
-    networks:
-      backend:
-{% if proxy_network is defined %}
-      {{ proxy_network }}:
-{% endif %}
-
-    command: ["start", "--db=postgres"{% if keycloak_theme_welcome != omit %}, "--spi-theme-welcome-theme={{ keycloak_theme_welcome }}"{% endif %}]
-    restart: always
-
-  database:
-    image: docker.io/library/postgres:{{ keycloak_postgres_image_version }}
-    mem_limit: 256mb
-    memswap_limit: 512mb
-    read_only: true
-{% if keycloak_postgres_selinux_level != omit %}
-    security_opt:
-      - label=level:{{ keycloak_postgres_selinux_level }}
-{% endif %}
-    tmpfs:
-      - /run/postgresql:size=512K
-      - /tmp:size=128K
-    stop_grace_period: 2m
-    stop_signal: SIGINT
-    environment:
-      - POSTGRES_USER={{ keycloak_database_user }}
-      - POSTGRES_PASSWORD={{ keycloak_database_password }}
-    volumes:
-      - ./database:/var/lib/postgresql/data
-    networks:
-      backend:
-    restart: always
-
-networks:
-  backend:
-    internal: true
-{% if proxy_network is defined %}
-  {{ proxy_network }}:
-    external: true
-{% endif %}

roles/keycloak/templates/keycloak-postgres.container.j2

@@ -0,0 +1,42 @@
+{{ ansible_managed | comment }}
+
+[Unit]
+Description = Postgres for keycloak
+
+[Service]
+Restart = always
+RestartSec = 5s
+
+[Container]
+Image = {{ keycloak_postgres_containerimage }}:{{ keycloak_postgres_image_tag }}
+ContainerName = keycloak-postgres
+
+AutoUpdate = registry
+LogDriver = journald
+
+NoNewPrivileges = true
+ReadOnly = true
+DropCapability = all
+AddCapability = CHOWN DAC_OVERRIDE SETUID SETGID
+UserNS = auto:size=65535
+{% if keycloak_selinux_level != omit %}
+SecurityLabelLevel = {{ keycloak_selinux_level }}
+{% endif %}
+
+Network = keycloak.network
+ExposeHostPort = 5432
+
+EnvironmentFile = {{ keycloak_install_dir }}/keycloak-postgres.env
+
+Volume = {{ keycloak_install_dir }}/postgres:/var/lib/postgresql/data:U
+Tmpfs = /run/postgresql:rw,noexec,nosuid,nodev,size=1m
+Tmpfs = /tmp:rw,noexec,nosuid,nodev,size=50m
+
+PodmanArgs = --memory={{ keycloak_postgres_memory_high }}
+PodmanArgs = --memory-swap={{ keycloak_postgres_swap_max }}
+PodmanArgs = --memory-reservation={{ keycloak_postgres_memory_low }}
+
+PodmanArgs = --stop-signal=SIGINT
+
+[Install]
+WantedBy = default.target

roles/keycloak/templates/keycloak-postgres.env.j2

@@ -0,0 +1,7 @@
+{{ ansible_managed | comment}}
+
+{% if keycloak_postgres_environment_vars is mapping %}
+{% for key, value in keycloak_postgres_environment_vars.items() %}
+{{ key }}={{ value }}
+{% endfor %}
+{% endif %}

roles/keycloak/templates/keycloak.caddy.j2

@@ -0,0 +1,21 @@
+{{ ansible_managed | comment }}
+
+{{ keycloak_domains | join(', ') }} {
+    encode gzip
+
+    header {
+        # enable HSTS
+        Strict-Transport-Security "max-age=31536000; preload;"
+
+        # disable clients from sniffing the media type
+        X-Content-Type-Options nosniff
+
+        # keep referrer data off of HTTP connections
+        Referrer-Policy no-referrer-when-downgrade
+
+        # Server name removing
+        -Server
+    }
+
+    reverse_proxy keycloak:8080
+}

roles/keycloak/templates/keycloak.container.j2

@@ -0,0 +1,40 @@
+{{ ansible_managed | comment }}
+
+[Unit]
+Description = Keycloak Server
+Requires = keycloak-postgres.service
+After = keycloak-postgres.service
+
+[Service]
+Restart = always
+RestartSec = 5s
+
+[Container]
+Image = {{ keycloak_containerimage }}:{{ keycloak_image_tag }}
+ContainerName = keycloak
+
+Exec = start \
+    --db=postgres \
+    --proxy-headers=xforwarded \
+    --http-enabled=true \
+    --features=persistent-user-sessions
+
+AutoUpdate = registry
+LogDriver = journald
+
+NoNewPrivileges = true
+DropCapability = all
+UserNS = auto:size=65535
+
+Network = keycloak.network
+Network = caddy.network
+ExposeHostPort = 8080
+
+EnvironmentFile = {{ keycloak_install_dir }}/keycloak.env
+
+PodmanArgs = --memory={{ keycloak_memory_high }}
+PodmanArgs = --memory-swap={{ keycloak_swap_max }}
+PodmanArgs = --memory-reservation={{ keycloak_memory_low }}
+
+[Install]
+WantedBy = default.target

roles/keycloak/templates/keycloak.env.j2

@@ -0,0 +1,7 @@
+{{ ansible_managed | comment}}
+
+{% if keycloak_environment_vars is mapping %}
+{% for key, value in keycloak_environment_vars.items() %}
+{{ key }}={{ value }}
+{% endfor %}
+{% endif %}

roles/keycloak/templates/keycloak.network.j2

@@ -0,0 +1,7 @@
+{{ ansible_managed | comment }}
+
+[Network]
+NetworkName = keycloak_internal
+Driver = bridge
+Internal = true
+IPv6 = true