cAdvisor

Overview

This installation happens on the dsb-node-01.

According to cAdvisor's GitHub Repository, cAdvisor (Container Advisor) is an open-source tool from Google designed to provide insights into resource usage and performance characteristics of running containers. It collects, aggregates, processes, and exports information about running containers, making it a valuable tool for monitoring containerized environments. This guide will walk you through the steps to install and configure cAdvisor using Docker Compose on your system.

Installation Steps

1. Create Necessary Directories

First, navigate to your apps directory and create a new directory for cAdvisor:

cd apps
mkdir cadvisor

Next, create the Docker library directory if it does not already exist:

cd /var/lib
mkdir docker
chown -R root:root docker

2. Create Docker Compose File

Navigate back to the cadvisor directory and create a docker-compose.yml file:

cd ~/apps/cadvisor
touch docker-compose.yml

3. Configure Docker Compose File

Edit the docker-compose.yml file and add the following configuration:

version: '3.8'

services:
  cadvisor:
    image: gcr.io/cadvisor/cadvisor
    container_name: cadvisor
    privileged: true
    restart: unless-stopped
    ports:
      - "8080:8080"
    volumes:
      - /:/rootfs:ro
      - /var/run:/var/run:ro
      - /sys:/sys:ro
    network_mode: host

4. Deploy cAdvisor

Finally, use Docker Compose to deploy cAdvisor:

docker-compose up -d

You're Done

Congratulations! You have successfully installed and configured cAdvisor. The cAdvisor service is now running and can be accessed via port 8080 on your host machine. This setup will allow you to monitor and visualize the performance metrics of your running containers in real-time.