karmada/hack/deploy-metrics-adapter.sh

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#!/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_CONTEXT_NAME> <KARMADA_APISERVER_KUBECONFIG> <KARMADA_APISERVER_CONTEXT_NAME>"
echo "Example: hack/deploy-metrics-adapter.sh ~/.kube/karmada.config karmada-host ~/.kube/karmada.config karmada-apiserver"
}
if [[ $# -ne 4 ]]; then
usage
exit 1
fi
# check kube config file existence
if [[ ! -f "${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_CONTEXT_NAME=$2
# check kube config file existence
if [[ ! -f "${3}" ]]; then
echo -e "ERROR: failed to get kubernetes config file: '${3}', not existed.\n"
usage
exit 1
fi
KARMADA_APISERVER_KUBECONFIG=$3
# check context existence
if ! kubectl config get-contexts "${4}" --kubeconfig="${KARMADA_APISERVER_KUBECONFIG}" > /dev/null 2>&1;
then
echo -e "ERROR: failed to get context: '${4}' not in ${KARMADA_APISERVER_KUBECONFIG}. \n"
usage
exit 1
fi
KARMADA_APISERVER_CONTEXT_NAME=$4
# install metrics adapter to host cluster
if [ -n "${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_CONTEXT_NAME}" apply -f "${REPO_ROOT}/artifacts/deploy/karmada-metrics-adapter.yaml"
# make sure that karmada-metrics-adapter is ready
util::wait_pod_ready "${HOST_CONTEXT_NAME}" "${KARMADA_METRICS_ADAPTER_LABEL}" "${KARMADA_SYSTEM_NAMESPACE}"
export KUBECONFIG=$KARMADA_APISERVER_KUBECONFIG
# deploy karmada-metrics-adapter-apiservice
kubectl --context="${KARMADA_APISERVER_CONTEXT_NAME}" 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_CONTEXT_NAME}" "${KARMADA_METRICS_ADAPTER_LABEL}"
# recover the kubeconfig before installing metrics adapter if necessary
if [ -n "${CURR_KUBECONFIG+x}" ];then
export KUBECONFIG="${CURR_KUBECONFIG}"
else
unset KUBECONFIG
fi
function print_success() {
echo "Karmada metrics adapter is deployed successfully."
}
print_success