Run matrix-gerritbot with gerritbot user

This updates matrix-gerritbot to run with the same user as gerritbot.

Change-Id: Id2a473db9354871aa48ac9fd851573843cbac1b5

playbooks/roles/matrix-gerritbot/defaults/main.yaml

@@ -1,3 +1,5 @@
+gerritbot_gid: 11000
+gerritbot_uid: 11000
 gerritbot_matrix_version: 4aeeac8
 gerritbot_matrix_image: quay.io/software-factory/gerritbot-matrix:{{ gerritbot_matrix_version }}
 gerritbot_matrix_prometheus_port: 9001

playbooks/roles/matrix-gerritbot/tasks/main.yaml

@@ -1,7 +1,24 @@
+- name: Create gerritbot group
+  group:
+    name: "gerritbot"
+    gid: "{{ gerritbot_gid }}"
+    system: yes
+- name: Create gerritbot user
+  user:
+    name: "gerritbot"
+    group: "gerritbot"
+    uid: "{{ gerritbot_uid }}"
+    home: "/var/lib/gerritbot"
+    create_home: yes
+    shell: /bin/bash
+    system: yes
+
 - name: Ensure bot directories
   file:
     state: directory
     path: '/var/lib/matrix-gerritbot/{{ item }}'
+    owner: gerritbot
+    group: gerritbot
     mode: 0700
   loop:
     - config
@@ -11,6 +28,8 @@
   copy:
     src: gerritbot.yaml
     dest: /var/lib/matrix-gerritbot/config/gerritbot.yaml
+    owner: gerritbot
+    group: gerritbot
   register: _gerritbot_config
 
 - name: Lookup the configuration schema
@@ -25,7 +44,7 @@
   vars:
     config: /var/lib/matrix-gerritbot/config
     yaml_to_dhall: >-
-      docker run -i -v {{ config }}:{{ config }}
+      docker run --user {{ gerritbot_uid }}:{{ gerritbot_gid }} -i -v {{ config }}:{{ config }}
       --rm docker.io/dhallhaskell/dhall-yaml yaml-to-dhall
     schema: "List {{ _gerritbot_schema.stdout }}"
 
@@ -34,17 +53,23 @@
     content: "{{ gerritbot_ssh_key }}"
     dest: "/var/lib/matrix-gerritbot/ssh/id_{{ gerritbot_ssh_key_format }}"
     mode: 0400
+    owner: gerritbot
+    group: gerritbot
   no_log: true
 
 - name: Install gerritbot ssh key
   copy:
     content: "{{ gerritbot_ssh_pubkey }}"
     dest: "/var/lib/matrix-gerritbot/ssh/id_{{ gerritbot_ssh_key_format }}.pub"
+    owner: gerritbot
+    group: gerritbot
 
 - name: Install gerritbot known host
   copy:
     content: "{{ gerritbot_known_hosts }}"
     dest: "/var/lib/matrix-gerritbot/ssh/known_hosts"
+    owner: gerritbot
+    group: gerritbot
 
 - name: Ensure /etc/matrix-gerritbot-docker directory
   file:

playbooks/roles/matrix-gerritbot/templates/docker-compose.yaml.j2

@@ -6,6 +6,7 @@ services:
   gerritbot-matrix:
     image: {{ gerritbot_matrix_image }}
     network_mode: host
+    user: "{{ gerritbot_uid }}:{{ gerritbot_gid }}"
     restart: always
     logging:
       driver: syslog
@@ -15,8 +16,8 @@ services:
       MATRIX_TOKEN: {{ gerritbot_matrix_access_token }}
       MATRIX_IDENTITY_TOKEN: {{ gerritbot_matrix_identity_token }}
     volumes:
-      - /var/lib/matrix-gerritbot/config:/config
-      - /var/lib/matrix-gerritbot/ssh:/root/.ssh
+      - /var/lib/matrix-gerritbot/config:/config:ro
+      - /var/lib/matrix-gerritbot/ssh:/root/.ssh:ro
     healthcheck:
       test: "gerritbot-matrix check {{ gerritbot_matrix_prometheus_port }}"
       retries: 6