redis: Fix the apt tasks.

redis/tasks/main.yml

@@ -4,8 +4,7 @@
       apt_repository: repo='{{ redis_ppa_repo }}' update_cache=yes
 
     - name: Install the Redis packages
-      apt: name={{ item }} state={{ redis_pkg_state }} cache_valid_time=1800
-      with_items: '{{ redis_server_pkg }}'
+      apt: name={{ redis_server_pkg }} state={{ redis_pkg_state }} cache_valid_time=1800
 
     - name: Install the Redis configuration
       template: src={{ item }}.j2 dest=/etc/redis/{{ item }} owner=redis group=redis mode=0440
@@ -29,8 +28,7 @@
       service: name=redis-server state=stopped enabled=no
 
     - name: Remove the Redis packages
-      apt: name={{ item }} state=absent
-      with_items: '{{ redis_server_pkg }}'
+      apt: name={{ redis_server_pkg }} state=absent
 
     - name: Remove the Redis PPA
       apt_repository: repo='{{ redis_ppa_repo }}' state=absent update_cache=yes