Docker Lab

Start with Docker by installing Docker Engine by on your 1st (e.g a01.learndns.info) node. This lab is only for primary server.

Module 1 - Install Docker Engine

Note: These instructions should be accessed after you have access to your server. Incase you don’t have access, please review this on how to get access.

Install dependencies (last time for now!)

 sudo apt-get update

 sudo apt-get install \
    ca-certificates \
    curl \
    gnupg \
    lsb-release

Add Docker’s GPG Key

sudo mkdir -p /etc/apt/keyrings
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg

Add official repo in source.list

echo \
 "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/ubuntu \
 $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

Install Docker Engine from the repo

sudo apt-get update
sudo apt-get install docker-ce docker-ce-cli containerd.io docker-compose docker-compose-plugin

Ensure access without root

sudo usermod -aG docker $USER

Log out of SSH session and login again (important step - do not miss this one out)

Verify docker engine is installed

docker -v

Once finished, proceed for next step to run mtr via ad-hoc