added scripts to deploy karmada-metrics-adapter

Signed-off-by: Sanskar Bhushan <sbdtu5498@gmail.com>

hack/deploy-metrics-adapter.sh

@@ -0,0 +1,67 @@
+#!/bin/bash
+
+set -o errexit
+set -o nounset
+
+REPO_ROOT=$(dirname "${BASH_SOURCE[0]}")/..
+source "${REPO_ROOT}"/hack/util.sh
+function usage() {
+  echo "This script will deploy karmada-metrics-adapter on host cluster"
+  echo "Usage: hack/deploy-metrics-adapter.sh  <HOST_CLUSTER_KUBECONFIG> <HOST_CLUSTER_NAME>>"
+  echo "Example: hack/deploy-metrics-adapter.sh ~/.kube/config karmada-host"
+}
+
+if [[ $# -ne 2 ]]; then
+  usage
+  exit 1
+fi
+
+# check kube config file existence
+if [[ ! -f "${1}" ]]; then
+  echo -e "ERROR: failed to get kubernetes config file: '${1}', not existed.\n"
+  usage
+  exit 1
+fi
+HOST_CLUSTER_KUBECONFIG=$1
+
+# check context existence
+if ! kubectl config get-contexts "${2}" --kubeconfig="${HOST_CLUSTER_KUBECONFIG}" > /dev/null 2>&1;
+then
+  echo -e "ERROR: failed to get context: '${2}' not in ${HOST_CLUSTER_KUBECONFIG}. \n"
+  usage
+  exit 1
+fi
+HOST_CLUSTER_NAME=$2
+
+# install metrics adapter to host cluster
+if [ -n "${KUBECONFIG+x}" ];then
+  CURR_KUBECONFIG=$KUBECONFIG # backup current kubeconfig
+fi
+
+export KUBECONFIG=$HOST_CLUSTER_KUBECONFIG
+echo "using kubeconfig: "$KUBECONFIG
+
+# deploy karmada-metrics-adapter
+kubectl --context="${HOST_CLUSTER_NAME}" apply -f "${REPO_ROOT}/artifacts/deploy/karmada-metrics-adapter.yaml"
+
+# make sure that karmada-metrics-adapter is ready
+util::wait_pod_ready "${HOST_CLUSTER_NAME}" "${KARMADA_METRICS_ADAPTER_LABEL}" "${KARMADA_SYSTEM_NAMESPACE}"
+
+# deploy karmada-metrics-adapter-apiservice
+kubectl --context="karmada-apiserver" apply -f "${REPO_ROOT}/artifacts/deploy/karmada-metrics-adapter-apiservice.yaml"
+
+# make sure that karmada-metrics-adapter-apiservice is ready
+util::wait_apiservice_ready "karmada-apiserver" "${KARMADA_METRICS_ADAPTER_LABEL}"
+
+# recover the kubeconfig before installing metrics adapter if necessary
+if [ -n "${CURR_KUBECONFIG+x}" ];then
+  export KUBECONFIG="${CURR_KUBECONFIG}"
+else
+  unset KUBECONFIG
+fi
+
+function print_success() {
+  echo "Karmada metrics adapter is deployed successfully."
+}
+
+print_success