k3s/federation/cluster/federation-down.sh

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#!/bin/bash
# Copyright 2014 The Kubernetes Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
set -o errexit
set -o nounset
set -o pipefail
KUBE_ROOT=$(readlink -m $(dirname "${BASH_SOURCE}")/../../)
# For $FEDERATION_NAME, $FEDERATION_KUBE_CONTEXT, $HOST_CLUSTER_CONTEXT,
# $KUBEDNS_CONFIGMAP_NAME and $KUBEDNS_CONFIGMAP_NAMESPACE.
source "${KUBE_ROOT}/federation/cluster/common.sh"
# unjoin_clusters unjoins all the clusters from federation.
function unjoin_clusters() {
for context in $(federation_cluster_contexts); do
kube::log::status "Unjoining cluster \"${context}\" from federation \"${FEDERATION_NAME}\""
"${KUBE_ROOT}/federation/develop/kubefed.sh" unjoin \
"${context}" \
--context="${FEDERATION_KUBE_CONTEXT}" \
--host-cluster-context="${HOST_CLUSTER_CONTEXT}"
# Delete kube-dns configmap that contains federation
# configuration from each cluster.
# TODO: This shouldn't be required after
# https://github.com/kubernetes/kubernetes/pull/39338.
# Remove this after the PR is merged.
kube::log::status "Deleting \"kube-dns\" ConfigMap from \"kube-system\" namespace in cluster \"${context}\""
"${KUBE_ROOT}/cluster/kubectl.sh" delete configmap \
--context="${context}" \
--namespace="${KUBEDNS_CONFIGMAP_NAMESPACE}" \
"${KUBEDNS_CONFIGMAP_NAME}"
done
}
unjoin_clusters
if cleanup-federation-api-objects; then
# TODO(madhusudancs): This is an arbitrary amount of sleep to give
# Kubernetes clusters enough time to delete the underlying cloud
# provider resources corresponding to the Kubernetes resources we
# deleted as part of the test tear downs. It is shameful that we
# are doing this, but this is just a bandage to stop the bleeding.
# Please don't use this pattern anywhere. Remove this when proper
# cloud provider cleanups are implemented in the individual test
# `AfterEach` blocks.
# Also, we wait only if the cleanup succeeds.
sleep 2m
else
echo "Couldn't cleanup federation api objects"
fi