To create docker containers with storage attached automatically

In the procedure, demovol is the name of the created volume.

1. Create a volume using the docker volume create command.

   # docker volume create -d veritas --name demovol

2. Alternatively, you can also specify size and or layout options using -o option.

   # docker volume create -d veritas --name demovol -o size=1g -o layout=mirror

   Note:

   If options are not provided while creating a volume, then it uses default values for size and layout that are stored in the /etc/vx/docker/vxinfoscale-default.conf file. If layout=auto is mentioned, then InfoScale automatically chooses the best layout for the environment.

3. You can verify whether the volume is created properly by running the a docker volume ls command.

   # docker volume ls

   DRIVER    VOLUME NAME
   veritas   demovol

4. You can verify the detail information of the volume using docker volume inspect command.

   # docker volume inspect demovol

   [
   {
   "Name": "demovol",
   "Driver": "veritas",
   "Mountpoint": "/dockerfs/demovol_dockerdg",
   "Labels": {},
   "Scope": "global"
   }
   ]

5. Launch docker container.

   # docker run --name <container_name> -it --volume-driver veritas -v demovol:/vol<docker_image> <command>

   Where, VxVM volume 'demovol' gets automatically attached to the docker container.

6. You may verify that the container is running and accessible.

   # docker ps <container_name>

7. You can also remove the volume if it is not needed anymore.

   # docker volume rm demovol