Docker Compose Automation (Monitoring)

# files/prometheus.yml
global:
  scrape_interval: 15s
 
scrape_configs:
  - job_name: prometheus
    static_configs:
      - targets:
          - localhost:9090

# files/docker-compose.yml
version: "3.8"
 
services:
  prometheus:
    image: prom/prometheus:latest
    container_name: prometheus
    restart: unless-stopped
    ports:
      - "9090:9090"
    volumes:
      - ./prometheus/prometheus.yml:/etc/prometheus/prometheus.yml
      - prometheus_data:/prometheus
    networks:
      - monitoring
 
  grafana:
    image: grafana/grafana:latest
    container_name: grafana
    restart: unless-stopped
    ports:
      - "3000:3000"
    environment:
      - GF_SECURITY_ADMIN_USER=admin
      - GF_SECURITY_ADMIN_PASSWORD=admin123
    volumes:
      - grafana_data:/var/lib/grafana
    depends_on:
      - prometheus
      - loki
    networks:
      - monitoring
 
  loki:
    image: grafana/loki:latest
    container_name: loki
    restart: unless-stopped
    ports:
      - "3100:3100"
    command: -config.file=/etc/loki/local-config.yaml
    networks:
      - monitoring
 
volumes:
  prometheus_data:
  grafana_data:
 
networks:
  monitoring:

---
- name: Monitoring stack deployment
  hosts: all
  become: true
 
  tasks:
    - name: Install Docker
      apt:
        name: docker.io
        state: present
        update_cache: true
 
    - name: Start Docker
      service:
        name: docker
        state: started
        enabled: true
 
    - name: Add ubuntu to docker group
      user:
        name: ubuntu
        groups: docker
        append: true
 
    - name: Reset SSH connection
      meta: reset_connection
 
    - name: Install Docker Compose v1 binary
      get_url:
        url: "https://github.com/docker/compose/releases/download/1.29.2/docker-compose-Linux-x86_64"
        dest: /usr/local/bin/docker-compose
        mode: "0755"
 
    - name: Create monitoring directories
      file:
        path: /opt/monitoring/prometheus
        state: directory
        recurse: true
 
    - name: Copy Prometheus config
      copy:
        src: files/prometheus.yml
        dest: /opt/monitoring/prometheus/prometheus.yml
 
    - name: Copy Docker Compose file
      copy:
        src: files/docker-compose.yml
        dest: /opt/monitoring/docker-compose.yml
 
    - name: Start monitoring stack
      shell: docker-compose up -d
      args:
        chdir: /opt/monitoring
 
    - name: Verify containers
      shell: docker ps
      register: docker_output
      changed_when: false
 
    - name: Show containers
      debug:
        var: docker_output.stdout_lines

ansible-playbook playbooks/monitoring.yml