---

- name: Uninstall RPM
  yum:
    name:
      - graylog-server
    state: absent
  tags: graylog

- name: Install packages
  yum:
    name:
      - java-1.8.0-openjdk
      - mongodb-org-tools
  tags: graylog

- name: Download graylog archive
  get_url:
    url: "{{ graylog_archive_url }}"
    dest: "{{ graylog_root_dir }}/tmp/"
    checksum: sha1:{{ graylog_archive_sha1 }}
  when: graylog_install_mode != 'none'
  tags: graylog

- name: Extract graylog archive
  unarchive:
    src: "{{ graylog_root_dir }}/tmp/graylog-{{ graylog_version }}.tgz"
    dest: "{{ graylog_root_dir }}/tmp"
    remote_src: True
  when: graylog_install_mode != 'none'
  tags: graylog

- name: Deploy graylog app
  synchronize:
    src: "{{ graylog_root_dir }}/tmp/graylog-{{ graylog_version }}/"
    dest: "{{ graylog_root_dir }}/app/"
    recursive: True
    delete: True
  delegate_to: "{{ inventory_hostname }}"
  when: graylog_install_mode != 'none'
  notify: restart graylog-server
  tags: graylog

- name: Install external libs
  get_url:
    url: "{{ graylog_libs[item].url }}"
    dest: /opt/graylog/app/lib
    checksum: sha1:{{ graylog_libs[item].sha1 }}
  loop: "{{ graylog_libs.keys() | list }}"
  notify: restart graylog-server
  tags: graylog

- name: Find existing libs
  shell: find {{ graylog_root_dir }}/app/lib -type f -name \*.jar
  register: graylog_libs_installed
  changed_when: False
  tags: graylog

- name: Install plugins
  get_url:
    url: "{{ graylog_plugins[item].url }}"
    dest: "{{ graylog_root_dir }}/app/plugin"
    checksum: sha1:{{ graylog_plugins[item].sha1 }}
  when: item in graylog_plugins_to_install
  loop: "{{ graylog_plugins.keys() | list }}"
  notify: restart graylog-server
  tags: graylog

- name: Remove old plugins
  shell: find {{ graylog_root_dir }}/app/plugin -name graylog-plugin-{{ item }}\* -a \! -name \*{{ graylog_plugins[item].version }}.jar -exec rm -f "{}" \;
  when: graylog_plugins[item] is defined
  changed_when: False
  loop: "{{ graylog_plugins_to_install }}"
  tags: graylog

- name: List installed plugins
  shell: find {{ graylog_root_dir }}/app/plugin/ -type f -name graylog-plugin-\*.jar
  register: graylog_plugins_installed
  changed_when: False
  tags: graylog

- name: Remove unwanted plugins
  file: path={{ item }} state=absent
  when: item | basename | regex_replace('graylog\-plugin\-(.+)\-\d(\.\d+)+\.jar','\\1') not in graylog_plugins_core + graylog_plugins_to_install
  notify: restart graylog-server
  loop: "{{ graylog_plugins_installed.stdout_lines }}"
  tags: graylog

- name: Deploy systemd service unit
  template: src=graylog-server.service.j2 dest=/etc/systemd/system/graylog-server.service
  register: graylog_unit
  notify: restart graylog-server
  tags: graylog

- name: Reload systemd
  systemd: daemon_reload=True
  when: graylog_unit.changed
  tags: graylog

- name: Deploy pre/post backup scripts
  template: src={{ item }}-backup.j2 dest=/etc/backup/{{ item }}.d/graylog mode=750
  loop:
    - pre
    - post
  tags: graylog