Chainguard Container for linkerd-proxy

Ultralight, security-first service mesh for Kubernetes. Main repo for Linkerd 2.x.

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/linkerd-proxy:latest

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

usage

Linkerd can be installed either using linkerd CLI or using helm charts. The following steps will guide you through the installation process using the linkerd CLI.

In cases where you need network-level visibility into packets entering and leaving your application, Linkerd provides a debug sidecar with some helpful tooling. Similar to how proxy sidecar injection works, you add a debug sidecar to a pod by setting the config.linkerd.io/enable-debug-sidecar: "true" annotation at pod creation time.

For installing the core components of linkerd,

Prepare the Core Component Values

cat <<EOF > linkerd-core-values.yaml
controllerImage: cgr.dev/chainguard/linkerd-controller
linkerdVersion: latest
proxy:
  image:
    name: cgr.dev/chainguard/linkerd-proxy
    version: latest
proxyInit:
  image:
    name: cgr.dev/chainguard/linkerd-proxy-init
    version: latest
debugContainer:
  image:
    name: cgr.dev/chainguard/linkerd-debug
    version: latest
proxyLogLevel: "linkerd=debug,info"
EOF

Install the Core Components

kubectl apply -f https://github.com/kubernetes-sigs/gateway-api/releases/latest/download/standard-install.yaml
linkerd install --crds | kubectl apply -f -
linkerd install -f linkerd-core-values.yaml | kubectl apply -f -

Prepare the Viz Component Values

cat <<EOF > linkerd-viz-values.yaml
tap:
  image:
    registry: cgr.dev/chainguard
    name: linkerd-tap
    tag: latest
dashboard:
  image:
    registry: cgr.dev/chainguard
    name: linkerd-web
    tag: latest
metricsAPI:
  image:
    registry: cgr.dev/chainguard
    name: linkerd-metrics-api
    tag: latest
tapInjector:
  image:
    registry: cgr.dev/chainguard
    name: linkerd-tap
    tag: latest
EOF

Install the Viz Components

linkerd viz install -f linkerd-viz-values.yaml | kubectl apply -f -

After installation linkerd check can be run to validate the installation.

What are Chainguard Containers?

Chainguard's free tier of Starter container images are built with Wolfi, our minimal Linux undistro.

All other Chainguard Containers are built with Chainguard OS, Chainguard's minimal Linux operating system 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 development, or -dev, variant.

In all other cases, including Chainguard Containers tagged as :latest or with a specific version number, the container images include only an open-source application and its runtime dependencies. These minimal container images typically do not contain a shell or package manager.

Although the -dev container image variants have similar security features as their more minimal versions, they include additional software that is typically not necessary in production environments. We recommend using multi-stage builds to copy artifacts from the -dev variant into a more minimal production image.

Need additional packages?

To improve security, Chainguard Containers include only essential dependencies. Need more packages? Chainguard customers can use Custom Assembly to add packages, either through the Console, chainctl, or API.

To use Custom Assembly in the Chainguard Console: navigate to the image you'd like to customize in your Organization's list of images, and click on the Customize image button at the top of the page.

Learn More

Refer to our Chainguard Containers documentation on Chainguard Academy. Chainguard also offers VMs and Libraries — contact us for access.

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.