Prometheus/tasks/main.yml

Prometheus_tasks_main.yml

- name: Load specific variable from file
  include_vars: "vars/{{ansible_hostname}}.yml"

- name: Load recording rules from file
  include_vars: "vars/recording.rules.yml"

- name: Install docker-py pip package
  pip: name=docker-py version="1.7.0"
  when:
    - not ansible_check_mode
    - promcheck is not defined

- name: Create directories
  file: path="{{item}}" state=directory
  with_items:
    - "{{prometheus_server_confdir}}"
    - "{{prometheus_server_confdir}}/rules"
    - "{{prometheus_server_confdir}}/check-config"
    - "{{prometheus_server_confdir}}/check-config/rules"
    - "{{prometheus_server_datadir}}"


- set_fact: prometheus_path="/etc/prometheus"
  when: promcheck is not defined

- name: Deploy configuration file
  template: src="prometheus.yml.j2" dest="{{prometheus_server_confdir}}/prometheus.yml"
  notify: prometheus_server reload
  when: promcheck is not defined

- name: Deploy alerting rules file
  template: src="alerting.rules.j2" dest="{{prometheus_server_confdir}}/rules/alerting.rules"
  notify: prometheus_server reload
  when: 
    - promcheck is not defined
    - "'prometheus_master' not in group_names"

- name: Deploy recording rules file
  template: src="recording.rules.j2" dest="{{prometheus_server_confdir}}/rules/recording.rules"
  notify: prometheus_server reload
  when: 
    - promcheck is not defined
    - "'prometheus_master' not in group_names"

- name: Deploy file targets
  template: src="targetfile.yml.j2" dest="{{prometheus_server_confdir}}/{{item.name}}.yml"
  with_items: "{{prometheus_server_filetargets}}"
  when: 
    - prometheus_server_filetargets != None
    - promcheck is not defined


- set_fact: prometheus_path="/etc/prometheus/check-config"
  when: promcheck is defined

- name: Deploy configuration file on check config folder
  template: src="prometheus.yml.j2" dest="{{prometheus_server_confdir}}/check-config/prometheus.yml"
  when: promcheck is defined

- name: Deploy alerting rules file on check config folder
  template: src="alerting.rules.j2" dest="{{prometheus_server_confdir}}/check-config/rules/alerting.rules"
  when: promcheck is defined

- name: Deploy recording rules file on check config folder
  template: src="recording.rules.j2" dest="{{prometheus_server_confdir}}/check-config/rules/recording.rules"
  when: 
    - promcheck is defined
    - "'prometheus_master' not in group_names"

- name: Deploy file targets on check config folder
  template: src="targetfile.yml.j2" dest="{{prometheus_server_confdir}}/check-config/{{item.name}}.yml"
  with_items: "{{prometheus_server_filetargets}}"
  when:
    - prometheus_server_filetargets != None
    - promcheck is defined


- name: Syntax check of Prometheus config file
  shell: docker exec prometheus_server promtool check-config /etc/prometheus/check-config/prometheus.yml > /dev/null
  register: check_cmd
  changed_when: False
  failed_when: check_cmd.rc != 0
  tags: checkrule
  when: promcheck is defined

- name: Start Prometheus Docker container
  docker_container:
    name: prometheus_server
    image: "{{prometheus_server_image}}"
    command: "-config.file=/etc/prometheus/prometheus.yml -storage.local.path=/prometheus -web.console.libraries=/usr/share/prometheus/console_libraries -web.console.templates=/usr/share/prometheus/consoles {{prometheus_server_options}}"
    ports:
      - "9090:9090"
    volumes:
      - "{{prometheus_server_confdir}}:/etc/prometheus"
      - "{{prometheus_server_datadir}}:/prometheus"
    etc_hosts: "{{prometheus_etc_hosts}}"
  when:
    - not ansible_check_mode
    - promcheck is not defined