feat(redis): add ansible role

roles/redis/README.md

@@ -26,3 +26,14 @@ Redis ACL can be specified as an array in the `redis_config_user` variable
 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 }}"
+```

roles/redis/defaults/main/config.yml

@@ -4,10 +4,17 @@ redis_config_bind:
   - "-::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(' ') }}"
@@ -15,9 +22,20 @@ redis_base_config:
   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_config_merged: >-2
   {{ redis_config_base
+  | 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/meta/main.yml

@@ -4,7 +4,7 @@ dependencies: []
 galaxy_info:
   role_name: redis
   description: >-2
-    Deploy and configure redis server
+    Deploy and configure redis, a fast caching, vector-search and NoSQL database.
   galaxy_tags:
     - redis
     - docker