add redis

ansible.cfg

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+[defaults]
+roles_path = roles

hosts

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+[target]
+188.166.9.62 ansible_ssh_user=root
+
+[redis:children]
+target

playbooks/init-server.yml

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+---
+- hosts: all
+  serial: 1
+  roles:
+    - redis

roles/redis/defaults/main.yml

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+---
+
+redis_bind_address: "0.0.0.0"
+redis_port: 6379
+redis_syslog_enabled: "yes"
+# Must be USER or between LOCAL0-LOCAL7.
+redis_syslog_facility: "local0"
+redis_logfile: /var/log/redis.log
+redis_databases: 3
+redis_database_save_times:
+  - [900, 1]
+  - [300, 10]
+  - [60, 10000]
+redis_dbfilename: dump.rdb
+redis_db_dir: /var/lib/redis
+redis_role: master
+redis_requirepass: false
+redis_pass: None
+redis_max_clients: 128
+redis_max_memory: 512mb
+redis_maxmemory_policy: volatile-lru
+redis_appendfsync: everysec
+# check https://www.kernel.org/doc/Documentation/sysctl/vm.txt
+# and http://redis.io/topics/faq
+redis_overcommit_memory: 1
+#If role is slave set these values too
+redis_master_ip: 1.1.1.1
+redis_master_port: 6379
+redis_master_auth: None
+
+

roles/redis/handlers/main.yml

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+---
+- name: restart redis
+  service: name=redis state=restarted

roles/redis/tasks/main.yml

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+---
+
+- name: Install epel-release
+  yum: name=epel-release state=present
+
+- name: Install packages
+  yum: name={{ item }} state=present
+  with_items:
+    - libselinux-python
+    - redis
+
+- name: Deploy redis configuration file
+  template: src=redis.conf.j2 dest=/etc/redis.conf
+  notify:
+   - restart redis
+
+- name: Set vm.overcommit_memory=1
+  sysctl: name=vm.overcommit_memory value=1 state=present
+
+- name: Ensure redis service is started and enabled
+  service: name=redis state=started enabled=yes
+
+- name: Ensure redis is up and running
+  command: redis-cli ping
+  register: redis_response
+
+- name: assert redis is up
+  fail: msg='redis is not happy'
+  when: redis_response.stdout != "PONG"