k3s/cluster/gce/coreos/master-helper.sh

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#!/bin/bash
# Copyright 2015 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.
# A library of helper functions and constant for coreos os distro
# create-master-instance creates the master instance. If called with
# an argument, the argument is used as the name to a reserved IP
# address for the master. (In the case of upgrade/repair, we re-use
# the same IP.)
#
# It requires a whole slew of assumed variables, partially due to to
# the call to write-master-env. Listing them would be rather
# futile. Instead, we list the required calls to ensure any additional
# variables are set:
# ensure-temp-dir
# detect-project
# get-bearer-token
#
function create-master-instance() {
local address_opt=""
[[ -n ${1:-} ]] && address_opt="--address ${1}"
local preemptible_master=""
if [[ "${PREEMPTIBLE_MASTER:-}" == "true" ]]; then
preemptible_master="--preemptible --maintenance-policy TERMINATE"
fi
write-master-env
gcloud compute instances create "${MASTER_NAME}" \
${address_opt} \
--project "${PROJECT}" \
--zone "${ZONE}" \
--machine-type "${MASTER_SIZE}" \
--image-project="${MASTER_IMAGE_PROJECT}" \
--image "${MASTER_IMAGE}" \
--tags "${MASTER_TAG}" \
--network "${NETWORK}" \
--scopes "storage-ro,compute-rw,monitoring,logging-write" \
--can-ip-forward \
--metadata-from-file \
"kube-env=${KUBE_TEMP}/master-kube-env.yaml,user-data=${KUBE_ROOT}/cluster/gce/coreos/master-${CONTAINER_RUNTIME}.yaml,configure-node=${KUBE_ROOT}/cluster/gce/coreos/configure-node.sh,configure-kubelet=${KUBE_ROOT}/cluster/gce/coreos/configure-kubelet.sh,cluster-name=${KUBE_TEMP}/cluster-name.txt" \
--disk "name=${MASTER_NAME}-pd,device-name=master-pd,mode=rw,boot=no,auto-delete=no" \
--boot-disk-size "${MASTER_ROOT_DISK_SIZE:-10}" \
${preemptible_master}
}