add prometheus-nginxlog-exporter role (#2315)
* add prometheus-nginxlog-exporter role * Rename matrix_prometheus_nginxlog_exporter_container_url to matrix_prometheus_nginxlog_exporter_container_hostname * avoid referencing variables from other roles, handover info using group_vars/matrix_servers * fix: stop service when uninstalling fix: typo move available arch's into a var fix: text * fix: prometheus enabled condition Co-authored-by: ikkemaniac <ikkemaniac@localhost>
This commit is contained in:
ikkemaniac
GitHub
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---
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- name: Fail if matrix-nginx-proxy role already executed
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ansible.builtin.fail:
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msg: >-
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Trying to append prometheus-nginxlog-exporter's configuration to matrix-nginx-proxy,
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but it's pointless since the matrix-nginx-proxy role is already executed.
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To fix this, please change the order of roles in your playbook to make sure that
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the matrix-nginx-proxy role is run after the prometheus-nginxlog-exporter role.
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when: matrix_nginx_proxy_role_executed | default(False) | bool
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- name: Generate prometheus-nginxlog-exporter's metrics proxying configuration for matrix-nginx-proxy (matrix.DOMAIN/metrics/nginxlog)
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ansible.builtin.set_fact:
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matrix_prometheus_nginxlog_exporter_matrix_nginx_proxy_metrics_configuration_matrix_domain: |
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location /metrics/nginxlog {
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{# Use the embedded DNS resolver in Docker containers to discover the service #}
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resolver 127.0.0.11 valid=5s;
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set $backend "{{ matrix_prometheus_nginxlog_exporter_container_hostname }}:{{ matrix_prometheus_nginxlog_exporter_container_metrics_port }}";
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proxy_pass http://$backend/metrics;
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}
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when: matrix_prometheus_nginxlog_exporter_metrics_proxying_enabled | bool and matrix_nginx_proxy_enabled | bool
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- name: Register prometheus-nginxlog-exporter metrics proxying configuration with matrix-nginx-proxy (matrix.DOMAIN/metrics/nginxlog)
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ansible.builtin.set_fact:
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matrix_nginx_proxy_proxy_matrix_metrics_additional_system_location_configuration_blocks: |
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{{
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matrix_nginx_proxy_proxy_matrix_metrics_additional_system_location_configuration_blocks | default([])
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+
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[matrix_prometheus_nginxlog_exporter_matrix_nginx_proxy_metrics_configuration_matrix_domain]
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}}
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when: matrix_prometheus_nginxlog_exporter_metrics_proxying_enabled | bool
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---
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- block:
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- when: matrix_prometheus_nginxlog_exporter_enabled | bool
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ansible.builtin.include_tasks: "{{ role_path }}/tasks/inject_into_nginx_proxy.yml"
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tags:
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- setup-all
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- setup-prometheus-nginxlog-exporter
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- install-all
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- install-prometheus-nginxlog-exporter
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- block:
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- when: matrix_prometheus_nginxlog_exporter_enabled | bool
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ansible.builtin.include_tasks: "{{ role_path }}/tasks/validate_config.yml"
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- when: matrix_prometheus_nginxlog_exporter_enabled | bool
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ansible.builtin.include_tasks: "{{ role_path }}/tasks/setup_install.yml"
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tags:
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- setup-all
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- setup-prometheus-nginxlog-exporter
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- install-all
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- install-prometheus-nginxlog-exporter
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- block:
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- when: not matrix_prometheus_nginxlog_exporter_enabled | bool
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ansible.builtin.include_tasks: "{{ role_path }}/tasks/setup_uninstall.yml"
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tags:
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- setup-all
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- setup-prometheus-nginxlog-exporter
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---
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- name: Ensure matrix-prometheus-nginxlog-exporter image is pulled
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community.docker.docker_image:
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name: "{{ matrix_prometheus_nginxlog_exporter_docker_image }}"
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source: "{{ 'pull' if ansible_version.major > 2 or ansible_version.minor > 7 else omit }}"
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force_source: "{{ matrix_prometheus_nginxlog_exporter_docker_image_force_pull if ansible_version.major > 2 or ansible_version.minor >= 8 else omit }}"
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force: "{{ omit if ansible_version.major > 2 or ansible_version.minor >= 8 else matrix_prometheus_nginxlog_exporter_docker_image_force_pull }}"
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register: result
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retries: "{{ devture_playbook_help_container_retries_count }}"
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delay: "{{ devture_playbook_help_container_retries_delay }}"
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until: result is not failed
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- name: Ensure prometheus-nginxlog-exporter paths exists
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ansible.builtin.file:
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path: "{{ item }}"
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state: directory
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mode: 0750
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owner: "{{ matrix_user_username }}"
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group: "{{ matrix_user_groupname }}"
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with_items:
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- "{{ matrix_prometheus_nginxlog_exporter_base_path }}"
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- "{{ matrix_prometheus_nginxlog_exporter_config_path }}"
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- name: Ensure prometheus-nginxlog-exporter.yaml present
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ansible.builtin.template:
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src: "{{ role_path }}/templates/prometheus-nginxlog-exporter.yaml.j2"
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dest: "{{ matrix_prometheus_nginxlog_exporter_config_path }}/prometheus-nginxlog-exporter.yaml"
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mode: 0644
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owner: "{{ matrix_user_username }}"
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group: "{{ matrix_user_groupname }}"
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- name: Ensure grafana dashboard is installed
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ansible.builtin.template:
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src: "{{ role_path }}/templates/nginx-proxy.json"
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dest: "{{ matrix_grafana_config_path }}/dashboards/"
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mode: 0644
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owner: "{{ matrix_user_username }}"
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group: "{{ matrix_user_groupname }}"
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when: matrix_grafana_enabled
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- name: Ensure matrix-prometheus-nginxlog-exporter.service installed
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ansible.builtin.template:
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src: "{{ role_path }}/templates/systemd/matrix-prometheus-nginxlog-exporter.service.j2"
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dest: "{{ devture_systemd_docker_base_systemd_path }}/matrix-prometheus-nginxlog-exporter.service"
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mode: 0644
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register: matrix_prometheus_nginxlog_exporter_systemd_service_result
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---
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- name: Check existence of matrix-prometheus-nginxlog-exporter service
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ansible.builtin.stat:
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path: "{{ devture_systemd_docker_base_systemd_path }}/matrix-prometheus-nginxlog-exporter.service"
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register: matrix_prometheus_nginxlog_exporter_service_stat
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- when: matrix_prometheus_nginxlog_exporter_service_stat.stat.exists | bool
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block:
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- name: Fail when not cleaning up nginx and prometheus configs
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ansible.builtin.fail:
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msg: >
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This role has added to configs in 'matrix-nginx-proxy', 'matrix-synapse-reverse-proxy-companion' and 'matrix-prometheus'.
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Running 'setup-synapse-reverse-proxy-companion' WILL NOT remove those settings from those roles.
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Run the playbook again with the `setup-all` tag or all three 'setup-nginx-proxy,setup-synapse-reverse-proxy-companion,setup-prometheus' tags while
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'matrix_prometheus_enabled: false' to rebuild their configs.
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when: not ('setup-all' in ansible_run_tags or ('setup-nginx-proxy' in ansible_run_tags and 'setup-synapse-reverse-proxy-companion' in ansible_run_tags and 'setup-prometheus' in ansible_run_tags))
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- name: Ensure matrix-prometheus-nginxlog-exporter is stopped
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ansible.builtin.service:
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name: matrix-prometheus-nginxlog-exporter
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state: stopped
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enabled: false
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daemon_reload: true
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- name: Ensure matrix-prometheus-nginxlog-exporter.service doesn't exist
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ansible.builtin.file:
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path: "{{ devture_systemd_docker_base_systemd_path }}/matrix-prometheus-nginxlog-exporter.service"
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state: absent
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- name: Ensure matrix-prometheus-nginxlog-exporter paths don't exist
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ansible.builtin.file:
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path: "{{ matrix_prometheus_nginxlog_exporter_base_path }}"
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state: absent
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- name: Ensure matrix-prometheus-nginxlog-exporter grafana dashboard doesn't exist
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ansible.builtin.file:
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path: "{{ matrix_grafana_config_path }}/dashboards/nginx-proxy.json"
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state: absent
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@ -0,0 +1,32 @@
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---
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- name: Fail if Prometheus not enabled
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ansible.builtin.fail:
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msg: >
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You need to set `matrix_prometheus_enabled: true` or configure an external Prometheus database
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as this roles requires Prometheus for data storage.
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when: not matrix_prometheus_enabled and not matrix_prometheus_nginxlog_exporter_metrics_proxying_enabled
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- name: Fail if docker image not availble for arch
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ansible.builtin.fail:
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msg: >
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'prometheus-nginxlog-exporter' docker image is not available for your arch '{{ matrix_architecture }}'.
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We currently do not support building an image using this playbook.
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You can use a custom-build image by setting
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'matrix_prometheus_nginxlog_exporter_docker_image_arch_check_enabled: false'
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'matrix_prometheus_nginxlog_exporter_docker_image: path/to/docker/image:tag'
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or disable 'prometheus-nginxlog-exporter' by setting
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'matrix_prometheus_nginxlog_exporter: false'
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in vars.yml
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when: matrix_prometheus_nginxlog_exporter_docker_image_arch_check_enabled and matrix_architecture not in matrix_prometheus_nginxlog_exporter_docker_image_arch
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- name: Fail if nginx-proxy is not set to proxy metrics while prometheus-nginxlog-exporter is
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ansible.builtin.fail:
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msg: >
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'matrix_prometheus_nginxlog_exporter_metrics_proxying_enabled' is set but 'matrix_nginx_proxy_proxy_matrix_metrics_enabled' is not
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when: matrix_prometheus_nginxlog_exporter_metrics_proxying_enabled | bool and not matrix_nginx_proxy_proxy_matrix_metrics_enabled | bool
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