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Docker Image Packaging for RHEL

AlviStack

GitLab pipeline status GitHub tag GitHub license Docker Pulls

Red Hat Enterprise Linux (often abbreviated to RHEL) is a Linux distribution developed by Red Hat for the commercial market. Red Hat Enterprise Linux is released in server versions for x86-64, Power ISA, ARM64, and IBM Z and a desktop version for x86-64. All of Red Hat's official support and training, together with the Red Hat Certification Program, focuses on the Red Hat Enterprise Linux platform.

Learn more about RHEL: https://www.redhat.com/en/technologies/linux-platforms/enterprise-linux

Supported Tags and Respective Packer Template Links

Overview

This Docker container makes it easy to get an instance of SSHD up and running with RHEL.

Based on Official RHEL Docker Image with some minor hack:

  • Packaging by Packer Docker builder and Ansible provisioner in single layer
  • Handle ENTRYPOINT with catatonit
  • Handle CMD with SSHD

Quick Start

Start SSHD:

# Pull latest image
docker pull alvistack/rhel-8

# Run as detach
docker run \
    -itd \
    --name rhel \
    --publish 2222:22 \
    alvistack/rhel-8

Success. SSHD is now available on port 2222.

Because this container DIDN'T handle the generation of root password, so you should set it up manually with pwgen by:

# Generate password with pwgen
PASSWORD=$(docker exec -i centos pwgen -cnyB1); echo $PASSWORD

# Inject the generated password
echo "root:$PASSWORD" | docker exec -i centos chpasswd

Alternatively, you could inject your own SSH public key into container's authorized_keys by:

# Inject your own SSH public key
(docker exec -i centos sh -c "cat >> /root/.ssh/authorized_keys") < ~/.ssh/id_rsa.pub

Now you could SSH to it as normal:

ssh root@localhost -p 2222

Versioning

YYYYMMDD.Y.Z

Release tags could be find from GitHub Release of this repository. Thus using these tags will ensure you are running the most up to date stable version of this image.

YYYYMMDD.0.0

Version tags ended with .0.0 are rolling release rebuild by GitLab pipeline in weekly basis. Thus using these tags will ensure you are running the latest packages provided by the base image project.

License

Author Information