roles/aurweb: Make the necessary changes to use memcached instead of apcu

Add memcached to the playbook and also change the php extensions to use memcached.
Removed the apcu options from defatuls and added memcached settings. Added the php-memcached
packages to the list of needed packages and also remove the apcu tasks. Added the memcached
systemd unit file and enable and start it from the tasks.

playbooks/aur-dev.archlinux.org.yml

@@ -13,7 +13,8 @@
     - { role: mariadb, mariadb_innodb_buffer_pool_size: '64M', mariadb_table_open_cache: '256', mariadb_query_cache_type: '0',
               mariadb_innodb_file_per_table: True }
     - { role: sudo }
-    - { role: php-fpm, php_extensions: ['apc', 'apcu', 'iconv', 'mysqli', 'pdo_mysql'], zend_extensions: ['opcache'] }
+    - { role: php-fpm, php_extensions: ['iconv', 'memcached', 'mysqli', 'pdo_mysql'], zend_extensions: ['opcache'] }
+    - { role: memcached, tags: ['memcached'] }
     - { role: uwsgi, tags: ["uwsgi"] }
     - { role: borg-client, tags: ["borg"] }
     - { role: postfix, postfix_relayhost: "orion.archlinux.org" }

roles/aurweb/defaults/main.yml

@@ -20,10 +20,9 @@ aurweb_socket: '/run/php-fpm/{{aurweb_user}}.socket'
 cgit_socket: '/run/uwsgi/cgit.sock'
 smartgit_socket: '/run/uwsgi/smartgit.sock'
 
-aurweb_cache: 'apc'
+aurweb_cache: 'memcache'
 aurweb_cache_pkginfo_ttl: '86400'
 aurweb_request_limt: '4000'
 aurweb_window_length: '86400'
-aurweb_apc_shm_size: '1024M'
-aurweb_apc_ttl: '1800'
-aurweb_apc_entries_hint: '0'
+aurweb_memcached_host: 'localhost'
+aurweb_memcached_memory: 2048
\ No newline at end of file

roles/aurweb/tasks/main.yml

@@ -6,8 +6,7 @@
       - asciidoc
       - highlight
       - make
-      - php-apcu
-      - php-apcu-bc
+      - php-memcached
       - pyalpm
       - python-bleach
       - python-markdown
@@ -150,9 +149,6 @@
 - name: start and enable systemd socket
   service: name=php-fpm@{{ aurweb_user }}.socket state=started enabled=true
 
-- name: install apcu configuration
-  template: src=apcu.ini.j2 dest=/etc/php/conf.d/apcu.ini
-
 - name: install cgit configuration
   template: src=cgitrc.j2 dest="{{ aurweb_conf_dir }}/cgitrc"
 
@@ -227,6 +223,7 @@
       - aurweb-git.timer
       - aurweb-aurblup.service
       - aurweb-aurblup.timer
+      - aurweb-memcached.service
       - aurweb-mkpkglists.service
       - aurweb-mkpkglists.timer
       - aurweb-pkgmaint.service
@@ -236,11 +233,12 @@
       - aurweb-tuvotereminder.service
       - aurweb-tuvotereminder.timer
 
-- name: start and enable AUR systemd timers
+- name: start and enable AUR systemd services and timers
   service: name={{ item }} enabled=yes state=started
   with_items:
        - aurweb-git.timer
        - aurweb-aurblup.timer
+       - aurweb-memcached.service
        - aurweb-mkpkglists.timer
        - aurweb-pkgmaint.timer
        - aurweb-popupdate.timer

roles/aurweb/templates/apcu.ini.j2

-apc.shm_size={{ aurweb_apc_shm_size }}
-apc.ttl={{ aurweb_apc_ttl }}
-apc.entries_hint={{ aurweb_apc_entries_hint }}

roles/aurweb/templates/aurweb-memcached.service.j2

+[Unit]
+Description=Aurweb Memcached Daemon
+After=network.target
+
+[Service]
+User={{ aurweb_user }}
+Group=memcached
+ExecStart=/usr/bin/memcached -l {{ aurweb_memcached_host }} -m {{ aurweb_memcached_memory }} -o modern
+Restart=always
+NoNewPrivileges=yes
+PrivateTmp=yes
+ProtectHome=true
+PrivateDevices=yes
+ProtectSystem=full
+ProtectKernelTunables=true
+ProtectKernelModules=true
+ProtectControlGroups=true
+MemoryDenyWriteExecute=yes
+
+[Install]
+WantedBy=multi-user.target