From d631695fca38e9a429e5fdcb9f8c3803e1d235e5 Mon Sep 17 00:00:00 2001
From: Olivier Navas <olivier.navas@libretic.fr>
Date: Sat, 18 Jun 2022 18:45:52 +0200
Subject: [PATCH] Commit initial

---
 README.md                    | 31 +++++++++++++++++++++++++++++++
 defaults/main.yml            |  0
 handlers/main.yml            |  5 +++++
 tasks/main.yml               | 19 +++++++++++++++++++
 templates/docker-compose.yml | 33 +++++++++++++++++++++++++++++++++
 5 files changed, 88 insertions(+)
 create mode 100644 README.md
 create mode 100644 defaults/main.yml
 create mode 100644 handlers/main.yml
 create mode 100644 tasks/main.yml
 create mode 100644 templates/docker-compose.yml

diff --git a/README.md b/README.md
new file mode 100644
index 0000000..d00a711
--- /dev/null
+++ b/README.md
@@ -0,0 +1,31 @@
+# Role : docker_prometheus
+
+## Services fournis
+
+- main.yml : Installation de prometheus sur un serveur docker_host
+
+
+## Variables
+
+Fournir les variables suivantes. Par exemple :
+
+```yaml
+docker_prometheus_fqdn: prometheus.local.lan
+docker_prometheus_version: v0.23.0
+docker_prometheus_data_dir: /data1
+docker_prometheus_service_id: prometheus
+docker_prometheus_retention_time: 90d
+```
+
+| Option                           | Valeur par défaut | Description                                                                                |
+|----------------------------------|-------------------|--------------------------------------------------------------------------------------------|
+| docker_prometheus_fqdn           |                   | Le fqdn pour accéder à prometheus                                                          |
+| docker_prometheus_version        |                   | Version de l'image prometheus                                                              |
+| docker_prometheus_data_dir       |                   | L'emplacement dans lequel se trouvent les volumes de donnees docker pour le service        |
+| docker_prometheus_service_id     |                   | Le nom de service souhaité : conditionne le nommage des dossiers et le routage par traefik |
+| docker_prometheus_retention_time |                   | La durée de rétention des données dans prometheus |
+
+
+## Configuration de prometheus
+
+Créer ou modifier le fichier de configuration principal prometheus.yml dans le dossier de configuration à côté du docker-compose et redémarrer le conteneur.
diff --git a/defaults/main.yml b/defaults/main.yml
new file mode 100644
index 0000000..e69de29
diff --git a/handlers/main.yml b/handlers/main.yml
new file mode 100644
index 0000000..a8d96b0
--- /dev/null
+++ b/handlers/main.yml
@@ -0,0 +1,5 @@
+- name: docker-compose-up
+  shell: |
+    docker-compose up -d
+  args:
+    chdir: /opt/{{ docker_prometheus_service_id }}/
diff --git a/tasks/main.yml b/tasks/main.yml
new file mode 100644
index 0000000..41006cb
--- /dev/null
+++ b/tasks/main.yml
@@ -0,0 +1,19 @@
+- name: docker directory
+  file:
+    path: /opt/{{ docker_prometheus_service_id }}/
+    state: directory
+
+- name: prometheus configuration directory
+  file:
+    path: /opt/{{ docker_prometheus_service_id }}/prometheus
+    state: directory
+
+- name: prepare docker-compose.yml
+  template:
+    src: "{{ item }}"
+    dest: /opt/{{ docker_prometheus_service_id }}/
+  with_items:
+    - docker-compose.yml
+  notify: docker-compose-up
+  
+
diff --git a/templates/docker-compose.yml b/templates/docker-compose.yml
new file mode 100644
index 0000000..21de512
--- /dev/null
+++ b/templates/docker-compose.yml
@@ -0,0 +1,33 @@
+# {{ ansible_managed }}
+
+version: '3.1'
+
+services:
+  prometheus:
+    image: prom/prometheus:{{ docker_prometheus_version }}
+    environment:
+      - TZ=Europe/Paris
+    volumes:
+      - ./prometheus:/etc/prometheus
+      - {{ docker_prometheus_data_dir }}/{{ docker_prometheus_service_id }}/prometheus_data:/prometheus
+    command:
+      - '--config.file=/etc/prometheus/prometheus.yml'
+      - '--storage.tsdb.path=/prometheus'
+      - '--web.console.libraries=/etc/prometheus/console_libraries'
+      - '--web.console.templates=/etc/prometheus/consoles'
+      - '--storage.tsdb.retention.time={{ docker_prometheus_retention_time }}'
+      - '--web.enable-lifecycle'
+    restart: always
+    networks:
+      - traefik
+    labels:
+      - "org.label-schema.group=monitoring"
+      - "traefik.enable=true"
+      - "traefik.docker.network=traefik"
+      - "traefik.http.routers.{{ docker_prometheus_service_id }}.entrypoints=web"
+      - "traefik.http.routers.{{ docker_prometheus_service_id }}.rule=Host(`{{ docker_prometheus_fqdn }}`)"
+      - "traefik.http.services.{{ docker_prometheus_service_id }}.loadbalancer.server.port=9090"
+
+networks:
+  traefik:
+    external: true