cluster-management

This project leveraged Kubernetes Operator to help manage multiple EOS clusters

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

• 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/eoscluster_with_host.yaml to create eoscluster without projects
    kubectl apply -f config/samples/eoscluster_with_host.yaml to create eoscluster with projects

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

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

  Notes: kubctl get eoscluster eoscluster-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 eoscluster eoscluster-host -o yaml to check cluster status was updated as expect.