Custom Deployment Path for Micro-Services

By Default Docker deploying the containers in /var/lib/docker. If Required to deploy the containers in custom path we can follow the below steps. 

Note: Please take the necessary snapshot before performing the activity.

Step 1: Stop the Docker services. 

systemctl stop docker

Step 2: Create the Directory with proper permissions Where it's required. 

mkdir -p /docker_data
chown root:root /docker_data
chmod 711 /docker_data

Step 3: If it's existing environment follow the below steps if it's new environment and not deployed any containers yet, you can skip to step 4

rsync -aP /var/lib/docker/ /docker_data/

Step 4: Create or add the content in json file (vi /etc/docker/daemon.json).

{
    "data-root": "/docker_data"
}

Step5: Restart the docker services.

systemctl start docker

to verify the custom path of containers

docker info | grep 'Docker Root Dir'

 Output: 

 Docker Root Dir: /docker_data

if Required you can remove the old data located in /var/lib/docker to utilize the space.