---
# Copyright 2014, Rackspace US, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

- name: Test for log directory or link
  shell: |
    if [ -h "{{ memcached_log | dirname }}"  ]; then
      chown -h root:root "{{ memcached_log | dirname }}"
      chown -R root:root "$(readlink {{ memcached_log | dirname }})"
    else
      exit 1
    fi
  register: log_dir
  failed_when: false
  changed_when: log_dir.rc != 0

- name: Create memcached log dir
  file:
    path: "{{ memcached_log | dirname }}"
    state: directory
  when: log_dir.rc != 0

- name: Apply memcached config
  template:
    src: "{{ memcached_conf_template }}"
    dest: "{{ memcached_conf_dest }}"
    owner: "root"
    group: "root"
    mode: "0644"
  notify: Restart memcached

- name: Override systemd service file
  copy:
    src: "{{ memcached_systemd_service }}"
    dest: "/etc/systemd/system/memcached.service"
    owner: "root"
    group: "root"
    mode: "0644"
  when: memcached_systemd_service is defined
  notify: Restart memcached

- name: Create memcached systemd service config dir
  file:
    path: "/etc/systemd/system/memcached.service.d"
    state: "directory"
    group: "root"
    owner: "root"
    mode: "0755"
  when:
    - ansible_service_mgr == 'systemd'

# See comments above 'memcached_disable_privatedevices' in defaults/main.yml for
# links to relevant bugs and discussion.
- name: Remove PrivateDevices systemd options when in container
  template:
    src: without-privatedevices.conf.j2
    dest: "/etc/systemd/system/memcached.service.d/without-privatedevices.conf"
  when:
    - ansible_pkg_mgr == 'yum'
    - ansible_service_mgr == 'systemd'
  notify: Restart memcached

- name: Add automatic restart on failure
  template:
    src: systemd-restart-on-failure.conf.j2
    dest: "/etc/systemd/system/memcached.service.d/systemd-restart-on-failure.conf"
  when:
    - ansible_service_mgr == 'systemd'
  notify: Restart memcached

- name: Apply resource limits (systemd)
  template:
    src: "limits.conf.j2"
    dest: "/etc/systemd/system/memcached.service.d/limits.conf"
    owner: "root"
    group: "root"
    mode: "0644"
  when:
    - ansible_service_mgr == 'systemd'
    - memcached_connections > 1024
  notify:
    - Restart memcached

- name: Configure soft file limits
  lineinfile:
    dest: "/etc/security/limits.conf"
    regexp: "^{{ memcached_user }}.*soft.*nofile.*"
    state: "present"
    line: "{{ memcached_user }}\tsoft\tnofile\t\t{{ memcached_file_limits }}"
    insertbefore: "^# End of file"

- name: Configure hard file limits
  lineinfile:
    dest: "/etc/security/limits.conf"
    regexp: "^{{ memcached_user }}.*hard.*nofile.*"
    state: "present"
    line: "{{ memcached_user }}\thard\tnofile\t\t{{ memcached_file_limits }}"
    insertbefore: "^# End of file"