feat(oidc_user_backend): add ansible role

README.md

@@ -15,6 +15,8 @@ and managing nextcloud installations
   server instance. Can install, remove, enable/disable and update apps.
 - [`ldap_user_backend`](roles/ldap_user_backend/README.md):
   Manages LDAP authentication sources in installed nextcloud instances.
+- [`oidc_user_backend`](roles/oidc_user_backend/README.md):
+  Manage OIDC authentication sources in installed nextcloud instances.
 - [`nginx_fpm_proxy`](roles/nginx_fpm_proxy/README.md):
   Reverse proxy role which connects to nextcloud using FPM
   and serves static content.

roles/oidc_user_backend/README.md

@@ -0,0 +1,26 @@
+# `finallycoffee.nextcloud.oidc_user_backend` ansible role
+
+Configure OIDC user backends in nextcloud using this ansible role.
+This role can be run multiple times with different arguments in order to
+configure multiple oidc-based user backends.
+
+## Configuration
+
+Set `oidc_user_backend_provider_identifier` to a unique identifier.
+Populate your provider information in the `oidc_user_backend_config_provider_provider_(settings_)`
+like this:
+
+```yaml
+oidc_user_backend_config_provider_identifier: my_provider
+oidc_user_backend_config_provider_discovery_endpoint: https://idp.example.com/
+oidc_user_backend_config_provider_client_id: my-client-id
+oidc_user_backend_config_provider_client_secret: my-client-secret
+
+# All options to the occ command are avaible in the
+# `oidc_user_backend_config_provider_settings_` namespace
+oidc_user_backend_config_provider_settings_unique_id: true
+oidc_user_backend_config_provider_settings_send_id_token_hint: true
+oidc_user_backend_config_provider_settings_mapping_display_name: name
+oidc_user_backend_config_provider_settings_mapping_uid: preferred_username
+oidc_user_backend_config_provider_settings_mapping_email: email
+```

roles/oidc_user_backend/defaults/main/config.yml

@@ -0,0 +1,40 @@
+---
+oidc_user_backend_config_provider_identifier: ~
+oidc_user_backend_config_provider_client_id: ~
+oidc_user_backend_config_provider_client_secret: ~
+oidc_user_backend_config_provider_discovery_endpoint: ~
+oidc_user_backend_config_provider_end_session_endpoint: ~
+oidc_user_backend_config_provider_scopes:
+  - openid
+  - email
+  - profile
+
+oidc_user_backend_config_provider_settings_unique_uid: true
+oidc_user_backend_config_provider_settings_check_bearer: true
+oidc_user_backend_config_provider_settings_send_id_token_hint: true
+oidc_user_backend_config_provider_settings_bearer_provisioning: false
+oidc_user_backend_config_provider_settings_extra_claims: []
+oidc_user_backend_config_provider_settings_provider_based_id: false
+oidc_user_backend_config_provider_settings_group_provisioning: false
+
+oidc_user_backend_config_provider_settings_mapping_display_name: name
+oidc_user_backend_config_provider_settings_mapping_email: email
+oidc_user_backend_config_provider_settings_mapping_quota: ~
+oidc_user_backend_config_provider_settings_mapping_uid: sub
+oidc_user_backend_config_provider_settings_mapping_groups: ~
+oidc_user_backend_config_provider_settings_mapping_address: ~
+oidc_user_backend_config_provider_settings_mapping_street_address: ~
+oidc_user_backend_config_provider_settings_mapping_postal_code: ~
+oidc_user_backend_config_provider_settings_mapping_locality: ~
+oidc_user_backend_config_provider_settings_mapping_region: ~
+oidc_user_backend_config_provider_settings_mapping_country: ~
+oidc_user_backend_config_provider_settings_mapping_website: ~
+oidc_user_backend_config_provider_settings_mapping_avatar: ~
+oidc_user_backend_config_provider_settings_mapping_twitter: ~
+oidc_user_backend_config_provider_settings_mapping_fediverse: ~
+oidc_user_backend_config_provider_settings_mapping_organisation: ~
+oidc_user_backend_config_provider_settings_mapping_role: ~
+oidc_user_backend_config_provider_settings_mapping_headline: ~
+oidc_user_backend_config_provider_settings_mapping_biography: ~
+oidc_user_backend_config_provider_settings_mapping_phone: ~
+oidc_user_backend_config_provider_settings_mapping_gender: ~

roles/oidc_user_backend/defaults/main/main.yml

@@ -0,0 +1,5 @@
+---
+oidc_user_backend_deployment_method: host
+oidc_user_backend_deployment_become_user: ~
+oidc_user_backend_deployment_method_docker_container_name: nextcloud
+oidc_user_backend_deployment_method_podman_container_name: nextcloud

roles/oidc_user_backend/defaults/main/occ.yml

@@ -0,0 +1,15 @@
+---
+oidc_user_backend_occ_command: "php occ"
+oidc_user_backend_occ_user_oidc_provider_identifier: >-2
+  {{ oidc_user_backend_config_provider_identifier }}
+oidc_user_backend_force_update: false
+
+oidc_user_backend_occ_user_oidc_provider_set_command: >-2
+  {{ oidc_user_backend_occ_command }} user_oidc:provider
+  {{ oidc_user_backend_occ_user_oidc_provider_options }}
+  {{ oidc_user_backend_occ_user_oidc_provider_identifier }}
+oidc_user_backend_occ_user_oidc_provider_list_command: >-2
+  {{ oidc_user_backend_occ_command }} user_oidc:provider --output=json
+oidc_user_backend_occ_user_oidc_provider_get_command: >-2
+  {{ oidc_user_backend_occ_command }} user_oidc:provider --output=json
+  {{ oidc_user_backend_occ_user_oidc_provider_identifier }}

roles/oidc_user_backend/tasks/execute-occ.yml

@@ -0,0 +1,41 @@
+---
+- name: Execute OCC command (host)
+  ansible.builtin.command:
+    cmd: "{{ oidc_user_backend_occ_command_to_exec }}"
+  become_user: "{{ oidc_user_backend_occ_user_to_become }}"
+  register: oidc_user_backend_occ_command_result_host
+  when: oidc_user_backend_deployment_method == 'host'
+
+- name: Execute OCC command (docker)
+  community.docker.docker_container_exec:
+    container: >-2
+      {{ oidc_user_backend_deployment_method_docker_container_name }}
+    command: "{{ oidc_user_backend_occ_command_to_exec }}"
+    user: "{{ oidc_user_backend_occ_user_to_become | default(omit, true) }}"
+  register: oidc_user_backend_occ_command_result_docker
+  when: oidc_user_backend_deployment_method == 'docker'
+
+- name: Execute OCC command (podman)
+  containers.podman.podman_container_exec:
+    name: >-2
+      {{ oidc_user_backend_deployment_method_podman_container_name }}
+    command: "{{ oidc_user_backend_occ_command_to_exec }}"
+    user: "{{ oidc_user_backend_occ_user_to_become | default(omit, true) }}"
+  register: oidc_user_backend_occ_command_result_podman
+  when: oidc_user_backend_deployment_method == 'podman'
+
+- name: Register result into variable
+  ansible.builtin.set_fact: {
+    "{{ oidc_user_backend_occ_command_result_var }}" : "{{
+      oidc_user_backend_occ_command_result.stdout | string | from_json
+    }}"
+  }
+  vars:
+    oidc_user_backend_occ_result_map:
+      host: "{{ oidc_user_backend_occ_command_result_host }}"
+      docker: "{{ oidc_user_backend_occ_command_result_docker }}"
+      podman: "{{ oidc_user_backend_occ_command_result_podman }}"
+    oidc_user_backend_occ_command_result: >-2
+      {{ oidc_user_backend_occ_result_map[oidc_user_backend_deployment_method]
+      | default(false, true) }}
+  when: oidc_user_backend_occ_command_result_var | default(false, true)

roles/oidc_user_backend/tasks/main.yml

@@ -0,0 +1,52 @@
+---
+- name: Check if deployment method is supported
+  ansible.builtin.fail:
+    msg: >-2
+      Deployment method '{{ oidc_user_backend_deployment_method }}' is not supported!
+      Supported are: {{ oidc_user_backend_deployment_methods | join(', ') }}
+  when: oidc_user_backend_deployment_method not in oidc_user_backend_deployment_methods
+
+- name: Lookup become user info
+  ansible.builtin.user:
+    name: "{{ oidc_user_backend_deployment_become_user }}"
+    state: present
+  check_mode: true
+  register: oidc_user_backend_deployment_become_user_info
+  when: oidc_user_backend_deployment_become_user | default(false, true)
+
+- name: Retrieve configured providers
+  ansible.builtin.include_tasks:
+    file: execute-occ.yml
+  vars:
+    oidc_user_backend_occ_command_to_exec: >-
+      {{ oidc_user_backend_occ_user_oidc_provider_get_command }}
+    oidc_user_backend_occ_user_to_become: "{{ oidc_user_backend_deployment_become_user_info.uid }}"
+    oidc_user_backend_occ_command_result_var: "oidc_user_backend_occ_user_oidc_provider"
+
+- name: Check if provider information should be updated
+  set_fact:
+    oidc_user_backend_backend_force_update: true
+  loop: "{{ lookup('ansible.utils.to_paths', oidc_user_backend_occ_user_oidc_provider) | dict2items }}"
+  loop_control:
+    label: "{{ item.key }}"
+  vars:
+    target_config: >-2
+      {{ lookup('ansible.utils.to_paths', oidc_user_backend_occ_user_oidc_config_provider_dict) }}
+  when:
+    - item.key not in oidc_user_backend_occ_user_oidc_provider_ignored_settings
+    - (item.value != None) and (target_config[item.key] != None)
+    - >-2
+        (target_config[item.key] != None) | ternary(
+          (item.value != target_config[item.key]),
+          (item.value | string | length > 0)
+        )
+
+- name: Update configuration for provider '{{ oidc_user_backend_config_provider_identifier }}'
+  ansible.builtin.include_tasks:
+    file: execute-occ.yml
+  vars:
+    oidc_user_backend_occ_command_to_exec: >-
+      {{ oidc_user_backend_occ_user_oidc_provider_set_command }}
+    oidc_user_backend_occ_user_to_become: "{{ oidc_user_backend_deployment_become_user_info.uid }}"
+    oidc_user_backend_occ_command_result_var: ~
+  when: oidc_user_backend_backend_force_update | default(false, true)

roles/oidc_user_backend/vars/main/main.yml

@@ -0,0 +1,9 @@
+---
+oidc_user_backend_deployment_methods:
+  - host
+  - docker
+  - podman
+
+oidc_user_backend_occ_user_oidc_provider_ignored_settings:
+  - 'id'
+  - 'settings.bearerProvisioning'

roles/oidc_user_backend/vars/main/provider-options-json.yml

@@ -0,0 +1,43 @@
+---
+# JSON structure of the `occ` response with `--output=json`
+oidc_user_backend_occ_user_oidc_config_provider_dict:
+  identifier: "{{ oidc_user_backend_config_provider_identifier }}"
+  clientId: "{{ oidc_user_backend_config_provider_client_id }}"
+  clientSecret: "{{ oidc_user_backend_config_provider_client_secret }}"
+  discoveryEndpoint: "{{ oidc_user_backend_config_provider_discovery_endpoint }}"
+  endSessionEndpoint: "{{ oidc_user_backend_config_provider_end_session_endpoint }}"
+  scope: "{{ oidc_user_backend_config_provider_scopes | default([], true) | join(' ') }}"
+  settings:
+    uniqueUid: >-2
+      {{ oidc_user_backend_config_provider_settings_unique_uid | bool }}
+    providerBasedId: >-2
+      {{ oidc_user_backend_config_provider_settings_provider_based_id | bool }}
+    checkBearer: >-2
+      {{ oidc_user_backend_config_provider_settings_check_bearer | bool }}
+    sendIdTokenHint: >-2
+      {{ oidc_user_backend_config_provider_settings_send_id_token_hint | bool }}
+    groupProvisioning: >-2
+      {{ oidc_user_backend_config_provider_settings_group_provisioning | bool }}
+    extraClaims: >-2
+      {{ oidc_user_backend_config_provider_settings_extra_claims | default([]) | join(' ') }}
+    mappingDisplayName: "{{ oidc_user_backend_config_provider_settings_mapping_display_name }}"
+    mappingEmail: "{{ oidc_user_backend_config_provider_settings_mapping_email }}"
+    mappingQuota: "{{ oidc_user_backend_config_provider_settings_mapping_quota }}"
+    mappingUid: "{{ oidc_user_backend_config_provider_settings_mapping_uid }}"
+    mappingGroups: "{{ oidc_user_backend_config_provider_settings_mapping_groups }}"
+    mappingWebsite: "{{ oidc_user_backend_config_provider_settings_mapping_website }}"
+    mappingAvatar: "{{ oidc_user_backend_config_provider_settings_mapping_avatar }}"
+    mappingTwitter: "{{ oidc_user_backend_config_provider_settings_mapping_twitter }}"
+    mappingFediverse: "{{ oidc_user_backend_config_provider_settings_mapping_fediverse }}"
+    mappingOrganisation: "{{ oidc_user_backend_config_provider_settings_mapping_organisation }}"
+    mappingRole: "{{ oidc_user_backend_config_provider_settings_mapping_role }}"
+    mappingHeadline: "{{ oidc_user_backend_config_provider_settings_mapping_headline }}"
+    mappingBiography: "{{ oidc_user_backend_config_provider_settings_mapping_biography }}"
+    mappingPhonenumber: "{{ oidc_user_backend_config_provider_settings_mapping_phone }}"
+    mappingGender: "{{ oidc_user_backend_config_provider_settings_mapping_gender }}"
+    mappingAddress: "{{ oidc_user_backend_config_provider_settings_mapping_address }}"
+    mappingStreetaddress: "{{ oidc_user_backend_config_provider_settings_mapping_street_address }}"
+    mappingPostalcode: "{{ oidc_user_backend_config_provider_settings_mapping_postal_code }}"
+    mappingLocality: "{{ oidc_user_backend_config_provider_settings_mapping_locality }}"
+    mappingRegion: "{{ oidc_user_backend_config_provider_settings_mapping_region }}"
+    mappingCountry: "{{ oidc_user_backend_config_provider_settings_mapping_country }}"

roles/oidc_user_backend/vars/main/provider-options.yml

@@ -0,0 +1,54 @@
+---
+# Structure how `occ user_oidc:provider [options] [<identifier>]` expects them
+oidc_user_backend_occ_user_oidc_provider_options_dict:
+  clientid: "{{ oidc_user_backend_config_provider_client_id }}"
+  clientsecret: "{{ oidc_user_backend_config_provider_client_secret }}"
+  discoveryuri: "{{ oidc_user_backend_config_provider_discovery_endpoint }}"
+  endsessionendpointuri: "{{ oidc_user_backend_config_provider_end_session_endpoint }}"
+  scope: "'{{ oidc_user_backend_config_provider_scopes | default([], true) | join(' ') }}'"
+  "unique-uid": >-2
+    {{ oidc_user_backend_config_provider_settings_unique_uid | bool | ternary(1, 0) }}
+  "check-bearer": >-2
+    {{ oidc_user_backend_config_provider_settings_check_bearer | bool | ternary(1, 0) }}
+  "send-id-token-hint": >-2
+    {{ oidc_user_backend_config_provider_settings_send_id_token_hint | bool | ternary(1, 0) }}
+  "group-provisioning": >-2
+    {{ oidc_user_backend_config_provider_settings_group_provisioning | bool | ternary(1, 0) }}
+  "extra-claims": >-2
+    {{ (oidc_user_backend_config_provider_settings_extra_claims | default([]) | length > 0)
+       | ternary(oidc_user_backend_config_provider_settings_extra_claims | join(' ') | quote, '') }}
+
+oidc_user_backend_occ_user_oidc_provider_mapping_options_dict:
+  "display-name": "{{ oidc_user_backend_config_provider_settings_mapping_display_name }}"
+  email: "{{ oidc_user_backend_config_provider_settings_mapping_email }}"
+  quota: "{{ oidc_user_backend_config_provider_settings_mapping_quota }}"
+  uid: "{{ oidc_user_backend_config_provider_settings_mapping_uid }}"
+  groups: "{{ oidc_user_backend_config_provider_settings_mapping_groups }}"
+  website: "{{ oidc_user_backend_config_provider_settings_mapping_website }}"
+  avatar: "{{ oidc_user_backend_config_provider_settings_mapping_avatar }}"
+  twitter: "{{ oidc_user_backend_config_provider_settings_mapping_twitter }}"
+  fediverse: "{{ oidc_user_backend_config_provider_settings_mapping_fediverse }}"
+  organisation: "{{ oidc_user_backend_config_provider_settings_mapping_organisation }}"
+  role: "{{ oidc_user_backend_config_provider_settings_mapping_role }}"
+  headline: "{{ oidc_user_backend_config_provider_settings_mapping_headline }}"
+  biography: "{{ oidc_user_backend_config_provider_settings_mapping_biography }}"
+  phone: "{{ oidc_user_backend_config_provider_settings_mapping_phone }}"
+  gender: "{{ oidc_user_backend_config_provider_settings_mapping_gender }}"
+  address: "{{ oidc_user_backend_config_provider_settings_mapping_address }}"
+  street_address: "{{ oidc_user_backend_config_provider_settings_mapping_street_address }}"
+  postal_code: "{{ oidc_user_backend_config_provider_settings_mapping_postal_code }}"
+  locality: "{{ oidc_user_backend_config_provider_settings_mapping_locality }}"
+  region: "{{ oidc_user_backend_config_provider_settings_mapping_region }}"
+  country: "{{ oidc_user_backend_config_provider_settings_mapping_country }}"
+
+oidc_user_backend_occ_user_oidc_provider_options: >-2
+  {% for tuple in oidc_user_backend_occ_user_oidc_provider_options_dict | dict2items %}
+  {% if tuple.value | default(false, true) %}
+  --{{ tuple.key }}={{ tuple.value }}
+  {% endif %}
+  {% endfor %}
+  {% for tuple in oidc_user_backend_occ_user_oidc_provider_mapping_options_dict | dict2items %}
+  {% if tuple.value | default(false, true) %}
+  --mapping-{{ tuple.key }}={{ tuple.value }}
+  {% endif %}
+  {% endfor %}