cluster-management

This project leveraged Kubernetes Operator to help manage multiple ecns clusters

• CRD "Cluster" to store Cluster Info
• Controller
  • Polling latest cluster info to update CRD
  • create/delete namespaces, network policy, pod security policy

Quick Start

• Precondition: you’ll need a Kubernetes cluster to run as Supervisor Cluster, and clusters to be managed.
  Notes:

  • Make sure SuperVisor could access k8s api on managed clusters, it need add public_ip into openssl.conf and regenerate certificates
  • Make sure managed clusters could access keystone on Supervisor cluster.

• Download Code on Supervisor cluster

  git clone git@github.com:es-container/cluster-management.git

• Run cluster-management

  make install to install CRD
  make run to run controller as process on host

• Function Demo

  • Create:
    kubectl apply -f config/samples/cluster_with_host.yaml to create cluster without projects
    kubectl apply -f config/samples/cluster_with_host.yaml to create cluster with projects

  • Update:
    kubectl edit cluster cluster-host to update projects list

  • Delete:
    kubectl delete cluster cluster-host to delete cluster

  Notes: kubctl get cluster cluster-host -o yaml to check cluster info was updated as expect. Log into managed clusters to check the namespaces(same name with projects) were created/deleted as expect.

  • Polling:
    systemctl stop kubelet to imitate nodes NotReady kubctl get cluster cluster-host -o yaml to check cluster status was updated as expect.

Development