matrix-docker-ansible-deploy/roles/matrix-prometheus/tasks/setup.yml

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---
#
# Tasks related to setting up matrix-prometheus
#
- name: Ensure matrix-prometheus image is pulled
docker_image:
name: "{{ matrix_prometheus_docker_image }}"
source: "{{ 'pull' if ansible_version.major > 2 or ansible_version.minor > 7 else omit }}"
force_source: "{{ matrix_prometheus_docker_image_force_pull if ansible_version.major > 2 or ansible_version.minor >= 8 else omit }}"
force: "{{ omit if ansible_version.major > 2 or ansible_version.minor >= 8 else matrix_prometheus_docker_image_force_pull }}"
when: "matrix_prometheus_enabled|bool"
- name: Ensure Prometheus paths exists
file:
path: "{{ item }}"
state: directory
mode: 0750
owner: "{{ matrix_user_username }}"
group: "{{ matrix_user_groupname }}"
with_items:
- "{{ matrix_prometheus_base_path }}"
- "{{ matrix_prometheus_config_path }}"
- "{{ matrix_prometheus_data_path }}"
when: matrix_prometheus_enabled|bool
- block:
# Well, this actually creates the network if it doesn't exist, but..
# The network should have been created by `matrix-base` already.
# We don't rely on that other call and its result, because it runs
# on `--tags=setup-all`, but will get skipped during `--tags=setup-prometheus`.
- name: Fetch Matrix Docker network details
docker_network:
name: "{{ matrix_docker_network }}"
driver: bridge
register: matrix_docker_network_info
- set_fact:
matrix_prometheus_endpoint_node_targets: ["{{ matrix_docker_network_info.network.IPAM.Config[0].Gateway }}:9100"]
when: "matrix_prometheus_enabled|bool and matrix_prometheus_node_exporter_enabled|bool and matrix_prometheus_endpoint_node_targets|length == 0"
- name: Ensure prometheus.yml installed
copy:
content: "{{ matrix_prometheus_configuration|to_nice_yaml }}"
dest: "{{ matrix_prometheus_config_path }}/prometheus.yml"
mode: 0644
owner: "{{ matrix_user_username }}"
group: "{{ matrix_user_groupname }}"
when: matrix_prometheus_enabled|bool
- name: Download synapse-v2.rules
get_url:
url: "{{ matrix_synapse_prometheus_rules_download_url }}"
dest: "{{ matrix_prometheus_config_path }}/synapse-v2.rules"
force: true
mode: 0440
owner: "{{ matrix_user_username }}"
group: "{{ matrix_user_groupname }}"
when: matrix_prometheus_enabled|bool
- name: Ensure matrix-prometheus.service installed
template:
src: "{{ role_path }}/templates/systemd/matrix-prometheus.service.j2"
dest: "{{ matrix_systemd_path }}/matrix-prometheus.service"
mode: 0644
register: matrix_prometheus_systemd_service_result
when: matrix_prometheus_enabled|bool
- name: Ensure systemd reloaded after matrix-prometheus.service installation
service:
daemon_reload: yes
when: "matrix_prometheus_enabled|bool and matrix_prometheus_systemd_service_result.changed"
#
# Tasks related to getting rid of matrix-prometheus (if it was previously enabled)
#
- name: Check existence of matrix-prometheus service
stat:
path: "{{ matrix_systemd_path }}/matrix-prometheus.service"
register: matrix_prometheus_service_stat
- name: Ensure matrix-prometheus is stopped
service:
name: matrix-prometheus
state: stopped
daemon_reload: yes
register: stopping_result
when: "not matrix_prometheus_enabled|bool and matrix_prometheus_service_stat.stat.exists"
- name: Ensure matrix-prometheus.service doesn't exist
file:
path: "{{ matrix_systemd_path }}/matrix-prometheus.service"
state: absent
when: "not matrix_prometheus_enabled|bool and matrix_prometheus_service_stat.stat.exists"
- name: Ensure systemd reloaded after matrix-prometheus.service removal
service:
daemon_reload: yes
when: "not matrix_prometheus_enabled|bool and matrix_prometheus_service_stat.stat.exists"
- name: Ensure matrix-prometheus Docker image doesn't exist
docker_image:
name: "{{ matrix_prometheus_docker_image }}"
state: absent
when: "not matrix_prometheus_enabled|bool"