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external-secrets-rancher-store-operator

This Kubernetes Operator creates a ClusterSecretStore for External Secrets Operator, for all namespaces in every cluster managed by the Rancher server, including the cluster local itself.

The ClusterSecretStore's are named cluster-{{ clusterName }}-{{ namespace }}. The prefix cannot be configured currently.

Filter Namespaces

In the values.yaml you need configure the namespaces that should be replicated using regex filters. The first match in cluster will be used to filter the namespaces:

namespaces:
  - clusterName: local
    namespaces:
      - fleet-.*
  - clusterName: .*
    namespaces:
      - default

Why should I use it?

Managing secrets with tools like External Secrets Operator always results in a chicken and egg problem. The first secret store that needs to be configured, requires secrets himself to connect.

As I manage all my Kubernetes clusters with Rancher, my solution for this problem is, to provide my Clusters with this initial secrets from the rancher server itself using a PushSecret.

This project solves the problem of allowing managing the required secret stores manually for all the clusters.

Installation

Dependencies

This project is meant to be installed into a Rancher cluster, and requires External Secrets Operator to be installed. It is build using metacontroller, and need to have Metacontroller installed as well.

Helm

The required dependencies of this project, are not part of the Helm Chart!

Install the helm Chart in this repository to your Rancher cluster. If you are using fleet, you can install the Helm chart with this fleet.yaml.

defaultNamespace: external-secrets-rso

helm:
  chart: git::https://github.com/Deltachaos/external-secrets-rancher-store-operator//helm/external-secrets-rancher-store-operator?ref=main
  version: 0.1.0