kustomize-mutating-webhook

Kustomize Mutating Webhook

Chainguard's redistribution of the Kustomize Mutating Webhook Helm chart, pre-configured with hardened Chainguard Images.

The webhook dynamically injects substitution variables from centralized ConfigMaps and Secrets into FluxCD Kustomization resources.

Prerequisites

Authentication is required. First, authenticate with Chainguard:

chainctl auth login
chainctl auth configure-docker --pull-token --save
helm registry login cgr.dev

Create an image pull secret:

kubectl create secret docker-registry cgr-pull-secret \
  --docker-server=cgr.dev \
  --docker-username="$(echo cgr.dev | docker-credential-cgr get | jq -r '.Username')" \
  --docker-password="$(echo cgr.dev | docker-credential-cgr get | jq -r '.Secret')" \
  --namespace kustomize-mutating-webhook

This chart requires cert-manager CRDs and the FluxCD kustomize-controller CRDs to be installed in the cluster.

Installation

helm install kustomize-mutating-webhook oci://cgr.dev/ORGANIZATION/charts/kustomize-mutating-webhook \
  --namespace kustomize-mutating-webhook \
  --create-namespace \
  --set imagePullSecrets[0].name=cgr-pull-secret

About This Chart

This is a redistribution of the upstream Kustomize Mutating Webhook Helm chart. All upstream configuration options apply.

For full documentation, see: https://github.com/xunholy/fluxcd-kustomize-mutating-webhook