oj09/ado-ubuntu-agent repository overview

⁠For Running

docker run -e AZP_URL="https://dev.azure.com/__xyz⁠__" -e AZP_TOKEN="" -e AZP_POOL="Aug26" -e AZP_AGENT_NAME="Docker Agent - Linux" --name "azp-agent-linux" azp-agent:linux

⁠How to build your own

⁠install Docker on ubuntu:

sudo apt update
sudo apt install docker.io -y
docker run hello-world

If the output says:

docker: Got permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock: Post "http://%2Fvar%2Frun%2Fdocker.sock/v1.24/containers/create": dial unix /var/run/docker.sock: connect: permission denied.
See 'docker run --help'.

⁠Start Docker daemon

You use the below command to verify if the docker daemon is actually started and Active

sudo systemctl status docker

If you notice that the docker daemon is not running, you can start the daemon using the below command

sudo systemctl start docker

⁠Grant Access to your user to run docker commands

To grant access to your user to run the docker command, you should add the user to the Docker Linux group. Docker group is create by default when docker is installed.

sudo usermod -aG docker username

In the above command ubuntu is the name of the user, you can change the username appropriately.

NOTE: : You need to logout and login back for the changes to be reflected.

⁠Docker is Installed, up and running 🥳🥳

Use the same command again, to verify that docker is up and running.

docker run hello-world

⁠logout and login if doesn't works

Ref : MS DOCS⁠