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README.md
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README.md
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# Role : docker_prometheus
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## Services fournis
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- main.yml : Installation de prometheus sur un serveur docker_host
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## Variables
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Fournir les variables suivantes. Par exemple :
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```yaml
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docker_prometheus_fqdn: prometheus.local.lan
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docker_prometheus_version: v0.23.0
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docker_prometheus_data_dir: /data1
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docker_prometheus_service_id: prometheus
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docker_prometheus_retention_time: 90d
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```
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| Option | Valeur par défaut | Description |
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|----------------------------------|-------------------|--------------------------------------------------------------------------------------------|
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| docker_prometheus_fqdn | | Le fqdn pour accéder à prometheus |
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| docker_prometheus_version | | Version de l'image prometheus |
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| docker_prometheus_data_dir | | L'emplacement dans lequel se trouvent les volumes de donnees docker pour le service |
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| docker_prometheus_service_id | | Le nom de service souhaité : conditionne le nommage des dossiers et le routage par traefik |
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| docker_prometheus_retention_time | | La durée de rétention des données dans prometheus |
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## Configuration de prometheus
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Créer ou modifier le fichier de configuration principal prometheus.yml dans le dossier de configuration à côté du docker-compose et redémarrer le conteneur.
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defaults/main.yml
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defaults/main.yml
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handlers/main.yml
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handlers/main.yml
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- name: docker-compose-up
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shell: |
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docker-compose up -d
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args:
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chdir: /opt/{{ docker_prometheus_service_id }}/
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tasks/main.yml
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tasks/main.yml
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- name: docker directory
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file:
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path: /opt/{{ docker_prometheus_service_id }}/
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state: directory
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- name: prometheus configuration directory
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file:
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path: /opt/{{ docker_prometheus_service_id }}/prometheus
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state: directory
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- name: prepare docker-compose.yml
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template:
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src: "{{ item }}"
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dest: /opt/{{ docker_prometheus_service_id }}/
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with_items:
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- docker-compose.yml
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notify: docker-compose-up
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templates/docker-compose.yml
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templates/docker-compose.yml
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# {{ ansible_managed }}
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version: '3.1'
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services:
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prometheus:
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image: prom/prometheus:{{ docker_prometheus_version }}
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environment:
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- TZ=Europe/Paris
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volumes:
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- ./prometheus:/etc/prometheus
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- {{ docker_prometheus_data_dir }}/{{ docker_prometheus_service_id }}/prometheus_data:/prometheus
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command:
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- '--config.file=/etc/prometheus/prometheus.yml'
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- '--storage.tsdb.path=/prometheus'
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- '--web.console.libraries=/etc/prometheus/console_libraries'
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- '--web.console.templates=/etc/prometheus/consoles'
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- '--storage.tsdb.retention.time={{ docker_prometheus_retention_time }}'
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- '--web.enable-lifecycle'
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restart: always
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networks:
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- traefik
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labels:
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- "org.label-schema.group=monitoring"
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- "traefik.enable=true"
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- "traefik.docker.network=traefik"
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- "traefik.http.routers.{{ docker_prometheus_service_id }}.entrypoints=web"
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- "traefik.http.routers.{{ docker_prometheus_service_id }}.rule=Host(`{{ docker_prometheus_fqdn }}`)"
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- "traefik.http.services.{{ docker_prometheus_service_id }}.loadbalancer.server.port=9090"
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networks:
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traefik:
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external: true
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