Manage replication. Closes #1

README.md

@@ -3,7 +3,7 @@ Redis Ansible
 
 [![Ansible Galaxy](http://img.shields.io/badge/ansible--galaxy-HanXHX.redis-blue.svg)](https://galaxy.ansible.com/list#/roles/3989) [![Build Status](https://travis-ci.org/HanXHX/ansible-redis.svg)](https://travis-ci.org/HanXHX/ansible-redis)
 
-Install and configure [Redis](http://redis.io/).
+Install and configure [Redis](http://redis.io/). Manage replication.
 
 Requirements
 ------------

defaults/main.yml

@@ -50,6 +50,9 @@ redis_client_output_buffer_limit:
   - 'pubsub 32mb 8mb 60'
 redis_hz: '10'
 redis_aof_rewrite_incremental_fsync: 'yes'
-redis_masterauth: null
 redis_requirepass: null
 
+# Replication
+redis_masterauth: null
+redis_masterauth_masterip: null
+redis_masterauth_masterport: null

templates/etc/redis/redis.conf.j2

@@ -163,7 +163,11 @@ dir {{ redis_dir }}
 # so for example it is possible to configure the slave to save the DB with a
 # different interval, or to listen to another port, and so on.
 #
+{% if redis_masterauth_masterip is none or redis_masterauth_masterport is none %}
 # slaveof <masterip> <masterport>
+{% else %}
+slaveof {{ redis_masterauth_masterip }} {{ redis_masterauth_masterport }}
+{% endif %}
 
 # If the master is password protected (using the "requirepass" configuration
 # directive below) it is possible to tell the slave to authenticate before

tests/test.yml

@@ -5,23 +5,41 @@
     - ../../
   vars:
     redis_requirepass: 'my_unsecure_password'
+    redis_slaveof: '127.0.0.1:{{ redis_masterauth_masterport }}'
+    redis_masterauth_masterip: '127.0.0.1'
+    redis_masterauth_masterport: 7777
+
   post_tasks:
     - name: SET_FACT | Create vars
       set_fact:
         test_key: 'key_{{ 10000 | random }}'
         test_val: 'value_{{ 10000 | random }}'
+
+    - name: SHELL | Start master Redis
+      shell: redis-server --port {{ redis_masterauth_masterport }} &
+      changed_when: false
+
     - name: COMMAND | Check Auth is running (and fails auth)
       command: redis-cli SET a 1
       register: f
       failed_when: f.stdout.find('Authentication required') == -1
       changed_when: false
-    - name: COMMAND | Test SET
-      command: redis-cli -a {{ redis_requirepass }} SET {{ test_key }} {{ test_val }}
+
+    - name: COMMAND | Test SET on master
+      command: redis-cli -p {{ redis_masterauth_masterport }} SET {{ test_key }} {{ test_val }}
       register: s
       failed_when: s.stdout.find('OK') == -1
       changed_when: false
-    - name: COMMAND | Test GET
+
+    - name: PAUSE | 1 sec
+      pause: seconds=1
+
+    - name: COMMAND | Test GET on slave
       command: redis-cli -a {{ redis_requirepass }} GET {{ test_key }}
       register: g
       failed_when: g.stdout.find(test_val) == -1
       changed_when: false
+
+    - name: SHELL | Kill master Redis
+      shell: ps aux | grep -v awk | awk '/redis-server / && /{{ redis_masterauth_masterport }}/ { print $2 }' | xargs -n1 kill
+      changed_when: false