92 lines
3.0 KiB
Bash
Executable File
92 lines
3.0 KiB
Bash
Executable File
#!/bin/bash
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# Copyright 2022 The Karmada Authors.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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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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function usage() {
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echo "This script will undeploy karmada agent from a cluster."
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echo "Usage: hack/undeploy-karmada-agent.sh <KARMADA_APISERVER_KUBECONFIG> <KARMADA_APISERVER_CONTEXT_NAME> <MEMBER_CLUSTER_KUBECONFIG> <MEMBER_CLUSTER_CONTEXT_NAME>"
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echo "Example: hack/undeploy-karmada-agent.sh ~/.kube/karmada.config karmada-apiserver ~/.kube/members.config member1"
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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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KARMADA_APISERVER_KUBECONFIG=$1
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# check context existence
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if ! kubectl config get-contexts "${2}" --kubeconfig="${KARMADA_APISERVER_KUBECONFIG}" > /dev/null 2>&1;
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then
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echo -e "ERROR: failed to get context: '${2}' 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=$2
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# check kube config file existence
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if [[ ! -f "${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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MEMBER_CLUSTER_KUBECONFIG=$3
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# check context existence
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if ! kubectl config get-contexts "${4}" --kubeconfig="${MEMBER_CLUSTER_KUBECONFIG}" > /dev/null 2>&1;
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then
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echo -e "ERROR: failed to get context: '${4}' not in ${MEMBER_CLUSTER_KUBECONFIG}. \n"
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usage
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exit 1
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fi
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MEMBER_CLUSTER_NAME=$4
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source "${REPO_ROOT}"/hack/util.sh
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# remove the member cluster from karmada control plane
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kubectl --context="${2}" delete cluster "${MEMBER_CLUSTER_NAME}"
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# remove agent from the member 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="${MEMBER_CLUSTER_KUBECONFIG}" # switch to member cluster
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# remove namespace of karmada agent
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kubectl --context="${MEMBER_CLUSTER_NAME}" delete -f "${REPO_ROOT}/artifacts/agent/namespace.yaml"
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kubectl --context="${MEMBER_CLUSTER_NAME}" delete namespace karmada-cluster
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# remove clusterrole and clusterrolebinding of karmada agent
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kubectl --context="${MEMBER_CLUSTER_NAME}" delete -f "${REPO_ROOT}/artifacts/agent/clusterrole.yaml"
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kubectl --context="${MEMBER_CLUSTER_NAME}" delete -f "${REPO_ROOT}/artifacts/agent/clusterrolebinding.yaml"
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# recover the kubeconfig after removing agent 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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