#!/bin/bash

# Copyright 2014 The Kubernetes Authors All rights reserved.

#

# 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.

# Bring up a Kubernetes cluster.

#

# If the full release name (gs://<bucket>/<release>) is passed in then we take

# that directly. If not then we assume we are doing development stuff and take

# the defaults in the release config.

set -o errexit

set -o nounset

set -o pipefail

KUBE_ROOT=$(dirname "${BASH_SOURCE}")/..

EXIT_ON_WEAK_ERROR="${EXIT_ON_WEAK_ERROR:-false}"

if [ -f "${KUBE_ROOT}/cluster/env.sh" ]; then

source "${KUBE_ROOT}/cluster/env.sh"

fi

source "${KUBE_ROOT}/cluster/kube-env.sh"

source "${KUBE_ROOT}/cluster/kube-util.sh"

if [ -z "${ZONE-}" ]; then

echo "... Starting cluster using provider: ${KUBERNETES_PROVIDER}" >&2

else

echo "... Starting cluster in ${ZONE} using provider ${KUBERNETES_PROVIDER}" >&2

fi

echo "... calling verify-prereqs" >&2

verify-prereqs

if [[ "${KUBE_STAGE_IMAGES:-}" == "true" ]]; then

echo "... staging images" >&2

stage-images

fi

echo "... calling kube-up" >&2

kube-up

echo "... calling validate-cluster" >&2

# Override errexit

(validate-cluster) && validate_result="$?" || validate_result="$?"

# We have two different failure modes from validate cluster:

# - 1: fatal error - cluster won't be working correctly

# - 2: weak error - something went wrong, but cluster probably will be working correctly

# We always exit in case 1), but if EXIT_ON_WEAK_ERROR != true, then we don't fail on 2).

if [[ "${validate_result}" == "1" ]]; then

exit 1

elif [[ "${validate_result}" == "2" ]]; then

if [[ "${EXIT_ON_WEAK_ERROR}" == "true" ]]; then

exit 1;

else

echo "...ignoring non-fatal errors in validate-cluster" >&2

fi

fi

echo -e "Done, listing cluster services:\n" >&2

"${KUBE_ROOT}/cluster/kubectl.sh" cluster-info

echo

exit 0