Chainguard Container for cluster-api-gcp-controller

Kubernetes Cluster API provider for Google Cloud Platform infrastructure management.

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/cluster-api-gcp-controller: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 cluster-api-gcp-controller image is compatible with the upstream Cluster API Provider GCP. This image contains only the minimum set of dependencies needed to run the GCP infrastructure provider components.

Getting Started

The Cluster API Provider for GCP enables you to create and manage Kubernetes clusters on Google Cloud Platform using Cluster API. It provides declarative APIs for provisioning and managing GCP infrastructure resources including Compute Engine instances, VPCs, and load balancers.

Prerequisites

• A management cluster with Cluster API core components installed
• clusterctl CLI tool
• Google Cloud Platform account with appropriate permissions
• GCP service account credentials configured

Installation

Initialize the GCP infrastructure provider using clusterctl:

clusterctl init --infrastructure gcp

Or manually install using the Chainguard image by applying the InfrastructureProvider resource:

kubectl apply -f - <<EOF
apiVersion: operator.cluster.x-k8s.io/v1alpha2
kind: InfrastructureProvider
metadata:
  name: gcp
  namespace: capg-system
spec:
  version: v1.10.0
  configSecret:
    name: capg-manager-bootstrap-credentials
  deployment:
    containers:
    - name: manager
      imageUrl: cgr.dev/ORGANIZATION/cluster-api-gcp-controller:latest
EOF

Usage Example

Create a GCP cluster using Cluster API resources:

apiVersion: infrastructure.cluster.x-k8s.io/v1beta1
kind: GCPCluster
metadata:
  name: my-gcp-cluster
  namespace: default
spec:
  project: my-gcp-project-id
  region: us-central1
  network:
    name: my-cluster-network
    autoCreateSubnetworks: true
---
apiVersion: infrastructure.cluster.x-k8s.io/v1beta1
kind: GCPMachineTemplate
metadata:
  name: my-cluster-control-plane
  namespace: default
spec:
  template:
    spec:
      instanceType: e2-standard-2
      image: projects/k8s-staging-cluster-api-gcp/global/images/cluster-api-ubuntu-2004-v1-29-0
      diskSizeGb: 50
      publicIP: true

Configuration

The controller requires a GCP service account with the following IAM roles:

• Compute Admin
• Service Account User
• Project IAM Admin (if using workload identity)

Create and configure the credentials secret:

kubectl create secret generic capg-manager-bootstrap-credentials \
  --from-file=credentials.json=/path/to/service-account.json \
  --namespace capg-system

Documentation and Resources

• Cluster API Provider GCP GitHub Repository
• Cluster API Documentation
• Google Cloud Platform Documentation

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.