关于Azure Marketplace中免费RedHat Linux+Docker+Python3镜像的咨询

Hey there! Let me walk you through what I know about this specific ask:

• Red Hat Enterprise Linux (RHEL) base images on Azure: Azure Marketplace does offer free trial versions of RHEL (like RHEL 9) that you can use for a limited period. After the trial, you’ll need a paid Red Hat subscription to keep using the OS. Good news though—Python 3 is preinstalled by default on RHEL 8 and newer versions, so you won’t have to set that up from scratch.

• Preinstalled Docker on free RHEL images? The short answer is no. Official Red Hat-provided RHEL images in the Marketplace are minimal base builds, so they don’t include Docker out of the box. Red Hat actually recommends using podman (a Docker-compatible container tool) as the native alternative, which you can install easily later. Also, third-party free images with preinstalled Docker + RHEL are rare, and you’d want to be cautious with them—they might lack security updates or violate Red Hat’s licensing terms.

• Alternative workarounds if you need this combo:

  • If you don’t strictly need RHEL, consider free Linux distributions like Ubuntu or CentOS Stream. Azure Marketplace has plenty of free, community-maintained images that come preloaded with both Docker and Python 3, and these OSes don’t require a paid subscription.
  • If you must stick with RHEL, start with the free trial base image, then add the tools yourself:
    • For Python 3: Confirm it’s present with python3 --version (it should be there on RHEL 8+). If you need a specific version, use dnf install python3.x (replace x with your desired version number).
    • For container tools: Install podman (Red Hat’s preferred tool) with dnf install podman, or set up Docker’s repository and install Docker CE via dnf install docker-ce.

Hope this clears things up and helps you get your VM set up smoothly!

内容的提问来源于stack exchange，提问作者Mahi