k3s/cluster/validate-cluster.sh

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#!/bin/bash
# Copyright 2014 Google Inc. 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.
# exit on any error
set -e
source $(dirname $0)/kube-env.sh
source $(dirname $0)/$KUBERNETES_PROVIDER/util.sh
get-password
detect-master > /dev/null
detect-minions > /dev/null
MINIONS_FILE=/tmp/minions
$(dirname $0)/kubecfg.sh -template '{{range.Items}}{{.ID}}:{{end}}' list minions > ${MINIONS_FILE}
# On vSphere, use minion IPs as their names
if [ "$KUBERNETES_PROVIDER" == "vsphere" ]; then
for (( i=0; i<${#MINION_NAMES[@]}; i++)); do
MINION_NAMES[i]=${KUBE_MINION_IP_ADDRESSES[i]}
done
fi
for (( i=0; i<${#MINION_NAMES[@]}; i++)); do
# Grep returns an exit status of 1 when line is not found, so we need the : to always return a 0 exit status
count=$(grep -c ${MINION_NAMES[i]} ${MINIONS_FILE}) || :
if [ "$count" == "0" ]; then
echo "Failed to find ${MINION_NAMES[i]}, cluster is probably broken."
exit 1
fi
# Make sure the kubelet is healthy
if [ "$(curl --insecure --user ${user}:${passwd} https://${KUBE_MASTER_IP}/proxy/minion/${MINION_NAMES[$i]}/healthz)" != "ok" ]; then
echo "Kubelet failed to install on ${MINION_NAMES[$i]}. Your cluster is unlikely to work correctly."
echo "Please run ./cluster/kube-down.sh and re-create the cluster. (sorry!)"
exit 1
else
echo "Kubelet is successfully installed on ${MINION_NAMES[$i]}"
fi
done
echo "Cluster validation succeeded"