Installing cAdvisor on OpenBSD

This tutorial will walk you through the process of installing cAdvisor on OpenBSD. cAdvisor is a popular open-source container monitoring tool that provides detailed information about containers running on the system.

Prerequisites

Before we begin, ensure that you have the following pre-requisites installed on your OpenBSD system:

• docker: You will need to have a running installation of Docker on your OpenBSD system in order to use cAdvisor.

Installation

To install cAdvisor on OpenBSD, follow these steps:

1. Clone the cAdvisor git repository using the following command:

   git clone https://github.com/google/cadvisor.git
   

2. Change into the cAdvisor directory using the following command:

   cd cadvisor
   

3. Build the cAdvisor Docker image using the following command:

   docker build --no-cache --tag=cadvisor .
   

4. Run the cAdvisor Docker container using the following command:

   docker run \
    --publish=8080:8080 \
    --volume=/:/rootfs:ro \
    --volume=/var/run:/var/run:rw \
    --volume=/sys:/sys:ro \
    --volume=/var/lib/docker/:/var/lib/docker:ro \
    --detach=true \
    --name=cadvisor \
    cadvisor
   

   This command will start the cAdvisor container with the following parameters:

   • --publish=8080:8080: Maps port 8080 from the container to port 8080 on your host machine.
   • --volume=/:/rootfs:ro: Mounts the root file system of the host machine as read-only into the container.
   • --volume=/var/run:/var/run:rw: Mounts the /var/run directory of the host machine as read-write into the container.
   • --volume=/sys:/sys:ro: Mounts the sys directory of the host machine as read-only into the container.
   • --volume=/var/lib/docker/:/var/lib/docker:ro: Mounts the var/lib/docker directory of the host machine as read-only into the container.
   • --detach=true: Runs the container in the background.
   • --name=cadvisor: Names the container as cadvisor.

5. Verify that cAdvisor is running by accessing http://localhost:8080 in your web browser. You should see the cAdvisor user interface.

Congratulations! You have successfully installed cAdvisor on your OpenBSD machine.