Add support for redis

roles/mastodon/defaults/main.yml

@@ -1,4 +1,4 @@
 ---
-REDIS_HOST: ''
+REDIS_HOST: 'wooly.masto.yttrx.com'
 # Host where cron jobs are run
 MAINTENANCE_HOST: ''

roles/mastodon/tasks/main.yml

@@ -49,8 +49,9 @@
     path: /usr/local/bin/feeds-build.sh
     mode: '0755'
 
-- import_tasks: redis.yml
-  when: ansible_hostname == REDIS_HOST
+- name: Configure redis
+  import_tasks: redis.yml
+  when: RUN_REDIS is defined and RUN_REDIS
 
 - import_tasks: maintenance.yml
   when: ansible_hostname == MAINTENANCE_HOST

roles/mastodon/tasks/redis.yml

@@ -1,5 +1,9 @@
----
-- name: Install redis server
-  package:
-    name: redis-server
-    state: present
+- name: Set overcommit memory
+  sysctl:
+    name: vm.overcommit_memory
+    value: '1'
+
+- name: Set redis.conf
+  copy:
+    dest: /home/mastodon/live/redis/redis.conf
+    src: redis.conf

roles/mastodon/templates/docker-compose.yml.j2

@@ -27,9 +27,11 @@ services:
       - 'DB_USER={{ ENV_PRODUCTION["DB_USER"] }}'
       - 'DB_PASSWORD={{ ENV_PRODUCTION["DB_PASS"] }}'
       - 'SERVER_TLS_SSLMODE=prefer'
+{% if RUN_REDIS is defined %}
   redis:
     restart: always
-    image: redis:7-alpine
+    image: redis:7
+    command: redis-server /data/redis.conf
     networks:
       - internal_network
       - external_network
@@ -39,6 +41,7 @@ services:
       test: ['CMD', 'redis-cli', 'ping']
     volumes:
       - ./redis:/data
+{% endif %}
 
 networks:
   external_network: