Open cluster management (OCP) demo on minikube

ocp-demo.sh

#!/bin/bash - 
#===============================================================================
#
#          FILE: ocp-demo.sh 
# 
#         USAGE: ./ocp-demo.sh 
# 
#   DESCRIPTION: setup a hub cluster and 2 managed clusters on minikube
# 
#       OPTIONS: ---
#  REQUIREMENTS: clusteradm cli: https://github.com/open-cluster-management-io/clusteradm
#       CREATED: 06/26/2023 11:26
#===============================================================================
set -e
if ! command -v kubectl &> /dev/null; then
    echo "Error: kubectl is not installed. Please make sure kubectl is installed."
    exit 1
fi

if ! command -v clusteradm &> /dev/null; then
    echo "Error: clusteradm is not installed. Please make sure clusteradm is installed."
    exit 1
fi

cd $(dirname ${BASH_SOURCE})


hub="hub"
c1="cluster1"
c2="cluster2"

minikube start -p ${hub}  --kubernetes-version=1.22.0 --container-runtime=containerd --nodes 1 --memory 2048 --cpus 2 --network=ocm-demo
minikube start -p ${c1}  --kubernetes-version=1.22.0 --container-runtime=containerd --nodes 2 --memory 2048 --cpus 2 --network=ocm-demo
minikube start -p ${c2}  --kubernetes-version=1.22.0 --container-runtime=containerd --nodes 2 --memory 2048 --cpus 2 --network=ocm-demo

echo "Initialize the ocm hub cluster\n"
clusteradm init --wait --context ${hub}
joincmd=$(clusteradm get token --context ${hub} | grep clusteradm)

echo "Join cluster1 to hub\n"
$(echo ${joincmd} --wait --context ${c1} | sed "s/<cluster_name>/$c1/g")

echo "Join cluster2 to hub\n"
$(echo ${joincmd} --wait --context ${c2} | sed "s/<cluster_name>/$c2/g")

echo "Accept join of cluster1 and cluster2"
clusteradm accept --context ${hub} --clusters ${c1},${c2} --wait

kubectl get managedclusters --all-namespaces --context ${hub}