Table of Contents

1. Challenge

   Configure Docker.

   Open port 9323 in the firewall.

   firewall-cmd --zone=public --add-port=9323/tcp
   

   Open /etc/docker/daemon.json and add the following.

   {
     "metrics-addr" : "0.0.0.0:9323",
     "experimental" : true
   }
   

2. Challenge

   Update `prometheus.yml`.

   Edit the prometheus.yml file in the /root directory.

   vi ~/prometheus.yml
   

   Change the contents to reflect the following:

   scrape_configs:
     - job_name: prometheus
       scrape_interval: 5s
       static_configs:
       - targets:
         - prometheus:9090
         - node-exporter:9100
         - pushgateway:9091
         - cadvisor:8080
   
     - job_name: docker
       scrape_interval: 5s
       static_configs:
       - targets:
         - PRIVATE_IP_ADDRESS:9323
   

3. Challenge

   Update `docker-compose.yml`.

   Edit docker-compose.yml in the /root directory.

   vi ~/docker-compose.yml
   

   Change the contents to reflect the following:

   version: '3'
   services:
     prometheus:
       image: prom/prometheus:latest
       container_name: prometheus
       ports:
         - 9090:9090
       command:
         - --config.file=/etc/prometheus/prometheus.yml
       volumes:
         - ./prometheus.yml:/etc/prometheus/prometheus.yml:ro
       depends_on:
         - cadvisor
     cadvisor:
       image: google/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
     pushgateway:
       image: prom/pushgateway
       container_name: pushgateway
       ports:
         - 9091:9091
     node-exporter:
       image: prom/node-exporter:latest
       container_name: node-exporter
       restart: unless-stopped
       expose:
         - 9100
     grafana:
       image: grafana/grafana:5.3.0
       container_name: grafana
       ports:
         - 3000:3000
       environment:
         - GF_SECURITY_ADMIN_PASSWORD=password
       depends_on:
         - prometheus
         - cadvisor
   
   

4. Challenge

   Install the Docker and System Monitoring dashboard.

   Click the plus sign (+) on the left side of the Grafana interface. Click Import. Copy the contents of the JSON file included in the lab instructions.

   Paste the contents of the JSON file into the Import screen of the Grafana interface, and click Load. In the upper right-hand corner, click on Refresh every 5m and select Last 5 minutes.