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matrix-docker-ansible-deploy/roles/matrix-grafana/tasks/setup.yml
Raymond Coetzee 4e2780ff88 Add support for a prometheus postgres exporter
This commit introduces a new role that downloads and installs the
prometheus community postgres exporter  https://github.com/prometheus-community/postgres_exporter.
A new credential is added to matrix_postgres_additional_databases that
allows the exporter access to the database to gather statistics.
A new dashboard was added to the grafana role, with some refactoring
to enable the dashboard only if the new role is enabled.
I've included some basic instructions for how to enable the role in
the Docs section.

In terms of testing, I've tested enabling the role, and disabling
it to make sure it cleans up the container and systemd role.
2021-05-27 20:13:29 +01:00

111 lines
3.8 KiB
YAML

---
#
# Tasks related to setting up matrix-grafana
#
- name: Ensure matrix-grafana image is pulled
docker_image:
name: "{{ matrix_grafana_docker_image }}"
source: "{{ 'pull' if ansible_version.major > 2 or ansible_version.minor > 7 else omit }}"
force_source: "{{ matrix_grafana_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_grafana_docker_image_force_pull }}"
when: "matrix_grafana_enabled|bool"
- name: Ensure grafana paths exists
file:
path: "{{ item }}"
state: directory
mode: 0750
owner: "{{ matrix_user_username }}"
group: "{{ matrix_user_groupname }}"
with_items:
- "{{ matrix_grafana_base_path }}"
- "{{ matrix_grafana_config_path }}"
- "{{ matrix_grafana_config_path }}/provisioning"
- "{{ matrix_grafana_config_path }}/provisioning/datasources"
- "{{ matrix_grafana_config_path }}/provisioning/dashboards"
- "{{ matrix_grafana_config_path }}/dashboards"
- "{{ matrix_grafana_data_path }}"
when: matrix_grafana_enabled|bool
- name: Ensure grafana.ini present
template:
src: "{{ role_path }}/templates/grafana.ini.j2"
dest: "{{ matrix_grafana_config_path }}/grafana.ini"
mode: 0440
owner: "{{ matrix_user_username }}"
group: "{{ matrix_user_groupname }}"
when: matrix_grafana_enabled|bool
- name: Ensure provisioning/datasources/default.yaml present
template:
src: "{{ role_path }}/templates/datasources.yaml.j2"
dest: "{{ matrix_grafana_config_path }}/provisioning/datasources/default.yaml"
mode: 0440
owner: "{{ matrix_user_username }}"
group: "{{ matrix_user_groupname }}"
when: matrix_grafana_enabled|bool
- name: Ensure provisioning/dashboards/default.yaml present
template:
src: "{{ role_path }}/templates/dashboards.yaml.j2"
dest: "{{ matrix_grafana_config_path }}/provisioning/dashboards/default.yaml"
mode: 0440
owner: "{{ matrix_user_username }}"
group: "{{ matrix_user_groupname }}"
when: matrix_grafana_enabled|bool
- name: Ensure dashboard(s) downloaded
get_url:
url: "{{ item }}"
dest: "{{ matrix_grafana_config_path }}/dashboards/"
force: true
mode: 0440
owner: "{{ matrix_user_username }}"
group: "{{ matrix_user_groupname }}"
with_items: "{{ matrix_grafana_dashboard_download_urls_all }}"
when: matrix_grafana_enabled|bool
- name: Ensure matrix-grafana.service installed
template:
src: "{{ role_path }}/templates/systemd/matrix-grafana.service.j2"
dest: "{{ matrix_systemd_path }}/matrix-grafana.service"
mode: 0644
register: matrix_grafana_systemd_service_result
when: matrix_grafana_enabled|bool
- name: Ensure systemd reloaded after matrix-grafana.service installation
service:
daemon_reload: yes
when: "matrix_grafana_enabled|bool and matrix_grafana_systemd_service_result.changed"
#
# Tasks related to getting rid of matrix-grafana (if it was previously enabled)
#
- name: Check existence of matrix-grafana service
stat:
path: "{{ matrix_systemd_path }}/matrix-grafana.service"
register: matrix_grafana_service_stat
- name: Ensure matrix-grafana is stopped
service:
name: matrix-grafana
state: stopped
daemon_reload: yes
register: stopping_result
when: "not matrix_grafana_enabled|bool and matrix_grafana_service_stat.stat.exists"
- name: Ensure matrix-grafana.service doesn't exist
file:
path: "{{ matrix_systemd_path }}/matrix-grafana.service"
state: absent
when: "not matrix_grafana_enabled|bool and matrix_grafana_service_stat.stat.exists"
- name: Ensure systemd reloaded after matrix-grafana.service removal
service:
daemon_reload: yes
when: "not matrix_grafana_enabled|bool and matrix_grafana_service_stat.stat.exists"