96 lines
3.4 KiB
Bash
Executable File
96 lines
3.4 KiB
Bash
Executable File
#!/bin/bash
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set -o errexit
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set -o nounset
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REPO_ROOT=$(dirname "${BASH_SOURCE[0]}")/..
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source "${REPO_ROOT}"/hack/util.sh
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function usage() {
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echo "This script will deploy karmada-metrics-adapter on host cluster"
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echo "Usage: hack/deploy-metrics-adapter.sh <HOST_CLUSTER_KUBECONFIG> <HOST_CONTEXT_NAME> <KARMADA_APISERVER_KUBECONFIG> <KARMADA_APISERVER_CONTEXT_NAME>"
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echo "Example: hack/deploy-metrics-adapter.sh ~/.kube/karmada.config karmada-host ~/.kube/karmada.config karmada-apiserver"
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}
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if [[ $# -ne 4 ]]; then
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usage
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exit 1
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fi
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# check kube config file existence
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if [[ ! -f "${1}" ]]; then
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echo -e "ERROR: failed to get kubernetes config file: '${1}', not existed.\n"
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usage
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exit 1
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fi
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HOST_CLUSTER_KUBECONFIG=$1
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# check context existence
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if ! kubectl config get-contexts "${2}" --kubeconfig="${HOST_CLUSTER_KUBECONFIG}" > /dev/null 2>&1;
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then
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echo -e "ERROR: failed to get context: '${2}' not in ${HOST_CLUSTER_KUBECONFIG}. \n"
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usage
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exit 1
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fi
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HOST_CONTEXT_NAME=$2
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# check kube config file existence
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if [[ ! -f "${3}" ]]; then
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echo -e "ERROR: failed to get kubernetes config file: '${3}', not existed.\n"
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usage
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exit 1
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fi
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KARMADA_APISERVER_KUBECONFIG=$3
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# check context existence
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if ! kubectl config get-contexts "${4}" --kubeconfig="${KARMADA_APISERVER_KUBECONFIG}" > /dev/null 2>&1;
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then
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echo -e "ERROR: failed to get context: '${4}' not in ${KARMADA_APISERVER_KUBECONFIG}. \n"
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usage
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exit 1
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fi
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KARMADA_APISERVER_CONTEXT_NAME=$4
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# install metrics adapter to host cluster
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if [ -n "${KUBECONFIG+x}" ];then
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CURR_KUBECONFIG=$KUBECONFIG # backup current kubeconfig
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fi
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export KUBECONFIG=$HOST_CLUSTER_KUBECONFIG
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echo "using kubeconfig: "$KUBECONFIG
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# deploy karmada-metrics-adapter
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kubectl --context="${HOST_CONTEXT_NAME}" apply -f "${REPO_ROOT}/artifacts/deploy/karmada-metrics-adapter.yaml"
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# make sure that karmada-metrics-adapter is ready
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util::wait_pod_ready "${HOST_CONTEXT_NAME}" "${KARMADA_METRICS_ADAPTER_LABEL}" "${KARMADA_SYSTEM_NAMESPACE}"
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export KUBECONFIG=$KARMADA_APISERVER_KUBECONFIG
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# get karmada CA from configmap cluster-info, which generated in karmada-apiserver context when installing karmada.
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karmada_ca=$(kubectl --context="${KARMADA_APISERVER_CONTEXT_NAME}" get cm cluster-info -n kube-public -o jsonpath='{.data.kubeconfig}' | grep 'certificate-authority-data' | awk -F ': ' '{print $2}')
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# render the caBundle in apiservice with root ca, then karmada-apiserver can use caBundle to verify karmada-metrics-adapter's server-cert
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TEMP_PATH_APISERVICE=$(mktemp -d)
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trap '{ rm -rf ${TEMP_PATH_APISERVICE}; }' EXIT
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cp -rf "${REPO_ROOT}"/artifacts/deploy/karmada-metrics-adapter-apiservice.yaml "${TEMP_PATH_APISERVICE}"/karmada-metrics-adapter-apiservice.yaml
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sed -i'' -e "s/{{caBundle}}/${karmada_ca}/g" "${TEMP_PATH_APISERVICE}"/karmada-metrics-adapter-apiservice.yaml
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# deploy karmada-metrics-adapter-apiservice
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kubectl --context="${KARMADA_APISERVER_CONTEXT_NAME}" apply -f "${TEMP_PATH_APISERVICE}"/karmada-metrics-adapter-apiservice.yaml
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# make sure that karmada-metrics-adapter-apiservice is ready
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util::wait_apiservice_ready "${KARMADA_APISERVER_CONTEXT_NAME}" "${KARMADA_METRICS_ADAPTER_LABEL}"
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# recover the kubeconfig before installing metrics adapter if necessary
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if [ -n "${CURR_KUBECONFIG+x}" ];then
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export KUBECONFIG="${CURR_KUBECONFIG}"
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else
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unset KUBECONFIG
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fi
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function print_success() {
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echo "Karmada metrics adapter is deployed successfully."
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}
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print_success
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