Chapter 1. Introducing Red Hat CodeReady Containers

download PDF

1.1. Understanding CodeReady Containers

Red Hat CodeReady Containers brings a minimal OpenShift 4 cluster to your local computer. This cluster provides a minimal environment for development and testing purposes. It’s mainly targetted at running on developers' desktops. For other use cases, such as headless, multi-developer or team-based setups, use of the full-fledged OpenShift installer is recommended.

You can refer to the OpenShift documentation for a more in-depth introduction to OpenShift.

CodeReady Containers includes the crc command-line interface (CLI) to interact with the CodeReady Containers virtual machine running the OpenShift cluster.

1.2. Differences from a production OpenShift install

Red Hat CodeReady Containers is a regular OpenShift installation with the following notable differences:

  • It uses a single node which behaves both as a master and as a worker node.
  • The machine-config and monitoring Operators are disabled by default.
  • These disabled Operators will cause the corresponding parts of the web console to be non functional.
  • For the same reason, there is currently no upgrade path to newer OpenShift versions.
  • Due to technical limitations, the CodeReady Containers cluster is ephemeral and will need to be recreated from scratch once a month using a newer release.
  • The OpenShift instance is running in a virtual machine, which could cause some other differences, in particular in relation with external networking.
Red Hat logoGithubRedditYoutubeTwitter


Try, buy, & sell


About Red Hat Documentation

We help Red Hat users innovate and achieve their goals with our products and services with content they can trust.

Making open source more inclusive

Red Hat is committed to replacing problematic language in our code, documentation, and web properties. For more details, see the Red Hat Blog.

About Red Hat

We deliver hardened solutions that make it easier for enterprises to work across platforms and environments, from the core datacenter to the network edge.

© 2024 Red Hat, Inc.