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kubecm
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kubecm
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#!/usr/bin/env bash
# kubecm is a utitilty to manage and merge KUBECONFIG environment for IBM kubernertes service
# to use kubectx(https://github.com/ahmetb/kubectx) easily
# 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.
usage() {
cat <<"EOF"
USAGE:
kubecm : print current KUBECONFIG
kubecm -r : reload KUBECONFIG
kubecm -d <NAME> [<NAME...>] : delete config <NAME>
kubecm -h,--help : show this message
EOF
}
reload() {
local dummy
dummy=/tmp/kube-config-dummy-${TERM_SESSION_ID##*:}.yml
echo "Start reload KUBECONFIG"
if [ ! -f "${dummy}" ]; then
cat > ${dummy} <<EOF
apiVersion: v1
clusters:
- cluster:
server: ""
name: dummy
contexts:
- context:
cluster: ""
user: ""
name: dummy
current-context: dummy
kind: Config
preferences: {}
users:
- name: dummy
user: {}
EOF
fi
export KUBECONFIG="${dummy}:$(find ~/.bluemix/plugins/container-service/clusters -path '*/*-admin/kube-config-*.yml' | tr '\n' ':')"
echo "Finish reload KUBECONFIG"
echo $KUBECONFIG
}
delete_configs() {
for i in "${@}"; do
delete_config "${i}"
done
reload
}
delete_config() {
local cfg
cfg="${1}"
echo "Deleting config \"${cfg}\"..." >&2
rm -ri ~/.bluemix/plugins/container-service/clusters/${cfg}-admin
}
main() {
if [[ "$#" -eq 0 ]]; then
echo $KUBECONFIG
elif [[ "${1}" == "-d" ]]; then
if [[ "$#" -lt 2 ]]; then
echo "error: missing config NAME" >&2
usage
exit 1
fi
delete_configs "${@:2}"
elif [[ "$#" -eq 1 ]]; then
if [[ "${1}" == "-r" ]]; then
reload
elif [[ "${1}" == "-h" || "${1}" == "--help" ]]; then
usage
exit 1
fi
else
usage
exit 1
fi
}
main "$@"