prometheus_final_task

Решение

node1

# 1.1
sudo apt update
sudo apt install ca-certificates curl
sudo install -m 0755 -d /etc/apt/keyrings
sudo curl -fsSL https://download.docker.com/linux/debian/gpg -o /etc/apt/keyrings/docker.asc
sudo chmod a+r /etc/apt/keyrings/docker.asc
sudo tee /etc/apt/sources.list.d/docker.sources <<EOF
Types: deb
URIs: https://download.docker.com/linux/debian
Suites: $(. /etc/os-release && echo "$VERSION_CODENAME")
Components: stable
Signed-By: /etc/apt/keyrings/docker.asc
EOF
sudo apt update
sudo apt install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin
# 1.2
curl -SL https://github.com/docker/compose/releases/download/v5.0.1/docker-compose-linux-x86_64 -o /usr/local/bin/docker-compose
chmod +x /usr/local/bin/docker-compose
sudo ln -s /usr/local/bin/docker-compose /usr/bin/docker-compose
# 1.3
mkdir db_data wordpress_data

1.4 - 1.6

tee docker-compose.yml <<'EOF'
services:
  db:
    image: mysql:5.7
    volumes:
      - db_data:/var/lib/mysql
    restart: always
    environment:
      MYSQL_ROOT_PASSWORD: jaef4oaR0ooH
      MYSQL_DATABASE: wordpress
      MYSQL_USER: wordpress
      MYSQL_PASSWORD: Aopo3aruzu7a

  wordpress:
    depends_on:
      - db
    image: wordpress:latest
    volumes:
      - wordpress_data:/var/www/html
    ports:
      - "8000:80"
    restart: always
    environment:
      WORDPRESS_DB_HOST: db:3306
      WORDPRESS_DB_USER: wordpress
      WORDPRESS_DB_PASSWORD: Aopo3aruzu7a
      WORDPRESS_DB_NAME: wordpress

  cadvisor:
    image: gcr.io/cadvisor/cadvisor:latest
    container_name: cadvisor
    ports:
    - 8080:8080
    volumes:
    - /:/rootfs:ro
    - /var/run:/var/run:rw
    - /sys:/sys:ro
    - /var/lib/docker/:/var/lib/docker:ro
    depends_on:
    - redis
  redis:
    image: redis:latest
    container_name: redis
    ports:
    - 6379:6379

  node_exporter:
    image: prom/node-exporter:latest
    container_name: node_exporter
    restart: unless-stopped
    ports:
      - "9100:9100"
    volumes:
      - /proc:/host/proc:ro
      - /sys:/host/sys:ro
      - /:/rootfs:ro
    command:
      - '--path.procfs=/host/proc'
      - '--path.sysfs=/host/sys'
      - '--path.rootfs=/rootfs'

  mysql_exporter:
    image: prom/mysqld-exporter:latest
    container_name: mysql_exporter
    restart: unless-stopped
    ports:
      - "9104:9104"
    command:
     - "--mysqld.username=wordpress:Aopo3aruzu7a"
     - "--mysqld.address=db:3306"	
	depends_on:
      - db

volumes:
  db_data: {}
  wordpress_data: {}
EOF

docker-compose up

Креды WP user 4oQdQH42F&bhvL^DfO

2.1. Запустить prometheus (можно в докере, можно через systemd).

mkdir prometheus
mkdir alertmanager
tee ./docker-compose.yml <<EOF
version: '3.7'

volumes:
    prometheus_data: {}
    grafana_data: {}

networks:
  front-tier:
  back-tier:

services:
  prometheus:
    image: prom/prometheus:latest
    volumes:
      - ./prometheus/:/etc/prometheus/
      - prometheus_data:/prometheus
    command:
      - '--config.file=/etc/prometheus/prometheus.yml'
      - '--storage.tsdb.path=/prometheus'
      - '--web.console.libraries=/usr/share/prometheus/console_libraries'
      - '--web.console.templates=/usr/share/prometheus/consoles'
    ports:
      - 9090:9090
    links:
      - cadvisor:cadvisor
      - alertmanager:alertmanager
    depends_on:
      - cadvisor
    networks:
      - back-tier
    restart: always

  node-exporter:
    image: quay.io/prometheus/node-exporter:latest
    volumes:
      - /proc:/host/proc:ro
      - /sys:/host/sys:ro
      - /:/rootfs:ro
      - /:/host:ro,rslave
    command: 
      - '--path.rootfs=/host'
      - '--path.procfs=/host/proc' 
      - '--path.sysfs=/host/sys'
      - --collector.filesystem.ignored-mount-points
      - "^/(sys|proc|dev|host|etc|rootfs/var/lib/docker/containers|rootfs/var/lib/docker/overlay2|rootfs/run/docker/netns|rootfs/var/lib/docker/aufs)($$|/)"
    ports:
      - 9100:9100
    networks:
      - back-tier
    restart: always
    deploy:
      mode: global

  cadvisor:
    image: gcr.io/cadvisor/cadvisor
    volumes:
      - /:/rootfs:ro
      - /var/run:/var/run:rw
      - /sys:/sys:ro
      - /var/lib/docker/:/var/lib/docker:ro
    ports:
      - 8080:8080
    networks:
      - back-tier
    restart: always
    deploy:
      mode: global

  grafana:
    image: grafana/grafana
    user: "472"
    depends_on:
      - prometheus
    ports:
      - 3000:3000
    volumes:
      - grafana_data:/var/lib/grafana
      - ./grafana/provisioning/:/etc/grafana/provisioning/
    env_file:
      - ./grafana/config.monitoring
    networks:
      - back-tier
      - front-tier
    restart: always
EOF
tee ./prometheus/prometheus.yml <<EOF
global:
  scrape_interval:     15s # By default, scrape targets every 15 seconds.
  evaluation_interval: 15s # By default, scrape targets every 15 seconds.
  external_labels:
      monitor: 'my-project'
scrape_configs:
  - job_name: 'prometheus'
    scrape_interval: 15s
    static_configs:
         - targets: ['localhost:9090']
  - job_name: 'cadvisor'
    scrape_interval: 15s
    static_configs:
      - targets: ['192.168.100.211:8080']
  - job_name: 'node-exporter'
    scrape_interval: 15s
    static_configs:
      - targets: ['192.168.100.211:9100']
  - job_name: 'mysql-exporter'
    scrape_interval: 15s
    static_configs:
      - targets: ['192.168.100.211:9104']
EOF

tee ./mysql_exporter/.my.cnf <<EOF
GF_SECURITY_ADMIN_PASSWORD=foobar
GF_USERS_ALLOW_SIGN_UP=false
EOF