ansible-roles/ganglia/tasks/main.yml

---
- block:
    - name: Install the ganglia client
      apt: pkg={{ item }} state=installed update_cache=yes cache_valid_time=3600
      with_items:
        - ganglia-monitor

    - name: Install the ganglia linux specific plugins. We need at least ubuntu trusty. Or debian 7. Or debian 8
      apt: pkg={{ item }} state=installed force=yes
      with_items:
        - ganglia-modules-linux
        - ganglia-monitor-python
      notify: Restart ganglia monitor
      when: is_trusty

    - name: Install the ganglia linux specific plugins. We need at least ubuntu trusty. Or debian 7. Or debian 8
      apt: pkg={{ item }} state=installed force=yes
      with_items:
        - ganglia-modules-linux
        - ganglia-monitor-python
      notify: Restart ganglia monitor
      when: is_debian7

    - name: Install the ganglia linux specific plugins. We need at least ubuntu trusty. Or debian 7. Or debian 8
      apt: pkg={{ item }} state=installed force=yes
      with_items:
        - ganglia-modules-linux
        - ganglia-monitor-python
      notify: Restart ganglia monitor
      when: is_debian8

    - name: Distribute the ganglia configuration file for Ubuntu >= 12.04
      template: src=gmond.j2 dest=/etc/ganglia/gmond.conf owner=root group=root mode=444
      when: ( is_not_ubuntu_less_than_precise ) or ( is_debian8 )
      notify: Restart ganglia monitor

    - name: Distribute the ganglia configuration file for Debian 7
      template: src=gmond.j2 dest=/etc/ganglia/gmond.conf owner=root group=root mode=444
      when: is_debian7
      notify: Restart ganglia monitor

    - name: Distribute the ganglia configuration file for Ubuntu < 12.04 and >= 10.04 and Debian 6
      template: src=gmond.j2 dest=/etc/ganglia/gmond.conf owner=root group=root mode=444
      when: is_ubuntu_between_10_04_and_11_04_and_is_debian_6
      notify: Restart ganglia monitor

    - name: Distribute the ganglia configuration file for Ubuntu < 10.04 and Debian 4
      template: src=gmond-2.5.j2 dest=/etc/gmond.conf owner=root group=root mode=444
      when: is_ubuntu_between_8_and_9_and_is_debian_4
      notify: Restart ganglia monitor

    - name: Distribute the ganglia configuration on broken hardy 8.04.4
      template: src=gmond-2.5.j2 dest=/etc/gmond.conf owner=root group=root mode=444
      when: is_broken_hardy_lts
      notify: Restart ganglia monitor

    - name: Setup the ganglia directory for python modules
      file: dest=/usr/lib/ganglia/python_modules state=directory
      when: is_precise

    - name: Ensure that the ganglia include conf dir exists
      file: path=/etc/ganglia/conf.d state=directory
      when: is_precise

    - name: Setup the ganglia configuration for python modules
      copy: src=modpython.conf dest=/etc/ganglia/conf.d/modpython.conf owner=root group=root mode=0644
      notify: Restart ganglia monitor
      when: is_precise

    - name: Set the kernel UDP buffer limits (net.core.rmem_max) to a value that is double of the ganglia udp buffer
      sysctl: name=net.core.rmem_max value={{ ganglia_udp_recv_buffer *2 }} reload=yes state=present
      when: ganglia_set_rmem

  when: ganglia_enabled
  tags: [ 'monitoring', 'ganglia' ]

- block:
    - name: Remove the ganglia client
      apt: pkg={{ item }} state=absent purge=yes
      with_items:
        - ganglia-monitor
        - libganglia1

  when: not ganglia_enabled
  tags: [ 'monitoring', 'ganglia' ]