Architecture-specific images

Docker Universal Control Plane deploys images for a number of different hardware architectures, including IBM z systems. Some architectures require pulling images that have specific tags or names indicating the target architecture.

Tag for IBM z Systems

Append the string -s390x to a UCP system image tag to pull the appropriate image for IBM z Systems. For example, you can modify the CLI command for getting a UCP support dump to use an environment variable that indicates the current architecture:

[[ $(docker info --format='{{.Architecture}}') == s390x ]] && export _ARCH='-s390x' || export _ARCH=''

docker container run --rm \
  --name ucp \
  -v /var/run/docker.sock:/var/run/docker.sock \
  --log-driver none \
  docker/ucp:2.2.17${_ARCH} \
  support > \
  docker-support-${HOSTNAME}-$(date +%Y%m%d-%H_%M_%S).tgz

In this example, the environment variable is named _ARCH, but you can use any valid shell name.

OS-specific component names

Some UCP component names depend on the node’s operating system. Use the following table to ensure that you’re pulling the right images for each node.