Chainguard Container for haproxy

A minimal haproxy base image rebuilt every night from source.

Chainguard Containers are regularly-updated, secure-by-default container images.

Download this Container Image

For those with access, this container image is available on cgr.dev:

docker pull cgr.dev/ORGANIZATION/haproxy:latest

Be sure to replace the ORGANIZATION placeholder with the name used for your organization's private repository within the Chainguard Registry.

Compatibility Notes

Chainguard’s HAProxy image is a minimal, Wolfi-based container image. It comes in two variants: a -slim version that only contains the haproxy binary, as well as a regular version that contains a docker-entrypoint.sh script that is compatible with the external docker-library/haproxy image for use with Helm charts or established Docker based deployments.

Getting Started

Similar to the docker-library/haproxy image, this image does not come with any default configuration.

Please refer to upstream's excellent (and comprehensive) documentation on the subject of configuring HAProxy for your needs.

Let say you have a haproxy.cfg config file is current working directory. To test that configuration file, you can run the following command

docker run -it --rm -v "$(pwd):/etc/haproxy" --name haproxy-syntax-check cgr.dev/ORGANIZATION/haproxy haproxy -c -f /etc/haproxy/haproxy.cfg

In order for the container to work, you need to mount your custom haproxy.cfg file in the container. The following example runs HAProxy with a custom configuration file:

docker run -it --rm -v "$(pwd):/etc/haproxy" cgr.dev/ORGANIZATION/haproxy haproxy -f /etc/haproxy/haproxy.cfg

Helm install

When installing in Kubernetes, securityContexts that drop [ "ALL" ] capabilities interfere with the setcap privileged haproxy. In order to support Kubernetes based installs which default to dropping ALL capabilities, the necessary modifications must be made to add back NET_ADMIN capabilities.

For example, in the ha-redis chart used by argocd, the values.yaml becomes:

# values.yaml
haproxy:
  enabled: true
  containerSecurityContext:
    capabilities:
      add:
        - NET_BIND_SERVICE

What are Chainguard Containers?

Chainguard Containers are minimal container images that are secure by default.

In many cases, the Chainguard Containers tagged as :latest contain only an open-source application and its runtime dependencies. These minimal container images typically do not contain a shell or package manager. Chainguard Containers are built with Wolfi, our Linux undistro designed to produce container images that meet the requirements of a more secure software supply chain.

The main features of Chainguard Containers include:

• Minimal design, without unnecessary software bloat
• Daily builds to ensure container images are up-to-date with available security patches
• High quality build-time SBOMs attesting to the provenance of all artifacts within the image
• Verifiable signatures provided by Sigstore
• Reproducible builds with Cosign and apko (read more about reproducibility)

For cases where you need container images with shells and package managers to build or debug, most Chainguard Containers come paired with a -dev variant.

Although the -dev container image variants have similar security features as their more minimal versions, they feature additional software that is typically not necessary in production environments. We recommend using multi-stage builds to leverage the -dev variants, copying application artifacts into a final minimal container that offers a reduced attack surface that won’t allow package installations or logins.

Learn More

To better understand how to work with Chainguard Containers, please visit Chainguard Academy and Chainguard Courses.

In addition to Containers, Chainguard offers VMs and Libraries. Contact Chainguard to access additional products.

Trademarks

This software listing is packaged by Chainguard. The trademarks set forth in this offering are owned by their respective companies, and use of them does not imply any affiliation, sponsorship, or endorsement by such companies.