Learn OpenShift

Dockerfile development for OpenShift

Early in this book, we explained how to containerize applications through Dockerfile development. This involved the docker build utility, which creates a ready-to-use container image by following Dockerfile instructions.

Generally speaking, OpenShift supports existing application Dockerfiles, but it has special default security-related requirements that require you to modify/adjust application Dockerfiles to be aligned with OpenShift security standards.

The default security policy runs any containers using a random User ID (UID) and ignores the USER Dockerfile instruction. The applications are always run under the root user group.

If the application needs read-write access, you need to configure RW access ...