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https://github.com/k3s-io/kubernetes.git
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119 lines
4.5 KiB
Bash
119 lines
4.5 KiB
Bash
# Copyright 2014 The Kubernetes 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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# required:
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# KUBE_ROOT: path of the root of the Kubernetes repository
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: "${KUBE_ROOT?Must set KUBE_ROOT env var}"
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# Provides the $KUBERNETES_PROVIDER, kubeconfig-federation-context()
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# and detect-project function
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source "${KUBE_ROOT}/cluster/kube-util.sh"
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# kubefed configuration
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FEDERATION_NAME="${FEDERATION_NAME:-e2e-federation}"
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FEDERATION_NAMESPACE=${FEDERATION_NAMESPACE:-federation-system}
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FEDERATION_KUBE_CONTEXT="${FEDERATION_KUBE_CONTEXT:-${FEDERATION_NAME}}"
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HOST_CLUSTER_ZONE="${FEDERATION_HOST_CLUSTER_ZONE:-}"
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# If $HOST_CLUSTER_ZONE isn't specified, arbitrarily choose
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# last zone as the host cluster zone.
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if [[ -z "${HOST_CLUSTER_ZONE}" ]]; then
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E2E_ZONES_ARR=(${E2E_ZONES:-})
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if [[ ${#E2E_ZONES_ARR[@]} > 0 ]]; then
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HOST_CLUSTER_ZONE=${E2E_ZONES_ARR[-1]}
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fi
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fi
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HOST_CLUSTER_CONTEXT="${FEDERATION_HOST_CLUSTER_CONTEXT:-}"
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if [[ -z "${HOST_CLUSTER_CONTEXT}" ]]; then
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# Sets ${CLUSTER_CONTEXT}
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if [[ -z "${HOST_CLUSTER_ZONE:-}" ]]; then
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echo "At least one of FEDERATION_HOST_CLUSTER_CONTEXT, FEDERATION_HOST_CLUSTER_ZONE or E2E_ZONES is required."
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exit 1
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fi
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kubeconfig-federation-context "${HOST_CLUSTER_ZONE:-}"
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HOST_CLUSTER_CONTEXT="${CLUSTER_CONTEXT}"
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fi
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function federation_cluster_contexts() {
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local -r contexts=$("${KUBE_ROOT}/cluster/kubectl.sh" config get-contexts -o name)
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federation_contexts=()
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for context in ${contexts}; do
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# Skip federation context
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if [[ "${context}" == "${FEDERATION_NAME}" ]]; then
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continue
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fi
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# Skip contexts not beginning with "federation"
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if [[ "${context}" != federation* ]]; then
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continue
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fi
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federation_contexts+=("${context}")
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done
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echo ${federation_contexts[@]}
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}
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source "${KUBE_ROOT}/cluster/common.sh"
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host_kubectl="${KUBE_ROOT}/cluster/kubectl.sh --namespace=${FEDERATION_NAMESPACE}"
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function cleanup-federation-api-objects {
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# This is a cleanup function. We cannot stop on errors here. So disable
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# errexit in this function.
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set +o errexit
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echo "Cleaning Federation control plane objects"
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# Delete all resources with the federated-cluster label.
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$host_kubectl delete pods,svc,rc,deployment,secret -lapp=federated-cluster
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# Delete all PVs bound to PVCs in FEDERATION_NAMESPACE
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pvs=$($host_kubectl get pvc --namespace=${FEDERATION_NAMESPACE} -o jsonpath='{.items[*].spec.volumeName}')
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while $host_kubectl delete pv ${pvs} >/dev/null 2>&1; do
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sleep 2
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done
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# Delete all resources in FEDERATION_NAMESPACE.
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$host_kubectl delete pvc,pods,svc,rc,deployment,secret --namespace=${FEDERATION_NAMESPACE} --all
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# This is a big hammer. We get rid of federation-system namespace from
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# all the clusters
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for context in $(federation_cluster_contexts); do
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(
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local -r role="federation-controller-manager:${FEDERATION_NAME}-${context}-${HOST_CLUSTER_CONTEXT}"
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kube::log::status "Removing namespace \"${FEDERATION_NAMESPACE}\", cluster role \"${role}\" and cluster role binding \"${role}\" from \"${context}\""
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# Try deleting until the namespace is completely gone.
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while $host_kubectl --context="${context}" delete namespace "${FEDERATION_NAMESPACE}" >/dev/null 2>&1; do
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# It is usually slower to remove a namespace because it involves
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# performing a cascading deletion of all the resources in the
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# namespace. So we sleep a little longer than other resources
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# before retrying
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sleep 5
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done
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kube::log::status "Removed namespace \"${FEDERATION_NAMESPACE}\" from \"${context}\""
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while $host_kubectl --context="${context}" delete clusterrole "${role}" >/dev/null 2>&1; do
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sleep 2
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done
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kube::log::status "Removed cluster role \"${role}\" from \"${context}\""
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while $host_kubectl --context="${context}" delete clusterrolebinding "${role}" >/dev/null 2>&1; do
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sleep 2
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done
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kube::log::status "Removed cluster role binding \"${role}\" from \"${context}\""
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) &
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done
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wait
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set -o errexit
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}
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