mirror of https://github.com/k3s-io/k3s
45 lines
1.6 KiB
Bash
45 lines
1.6 KiB
Bash
#!/bin/bash
|
|
|
|
# Copyright 2015 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.
|
|
|
|
set -o pipefail
|
|
|
|
echo Checking for other nodes
|
|
IP=""
|
|
if [[ -n "${KUBERNETES_SERVICE_HOST}" ]]; then
|
|
|
|
POD_NAMESPACE=${POD_NAMESPACE:-default}
|
|
MYHOST=$(ip addr | grep 'state UP' -A2 | tail -n1 | awk '{print $2}' | cut -f1 -d'/')
|
|
echo My host: ${MYHOST}
|
|
|
|
URL="https://${KUBERNETES_SERVICE_HOST}:${KUBERNETES_SERVICE_PORT}/api/v1/namespaces/${POD_NAMESPACE}/endpoints/rethinkdb-driver"
|
|
echo "Endpont url: ${URL}"
|
|
echo "Looking for IPs..."
|
|
token=$(cat /var/run/secrets/kubernetes.io/serviceaccount/token)
|
|
# try to pick up first different ip from endpoints
|
|
IP=$(curl -s ${URL} --cacert /var/run/secrets/kubernetes.io/serviceaccount/ca.crt --header "Authorization: Bearer ${token}" \
|
|
| jq -s -r --arg h "${MYHOST}" '.[0].subsets | .[].addresses | [ .[].ip ] | map(select(. != $h)) | .[0]') || exit 1
|
|
[[ "${IP}" == null ]] && IP=""
|
|
fi
|
|
|
|
if [[ -n "${IP}" ]]; then
|
|
ENDPOINT="${IP}:29015"
|
|
echo "Join to ${ENDPOINT}"
|
|
exec rethinkdb --bind all --join ${ENDPOINT}
|
|
else
|
|
echo "Start single instance"
|
|
exec rethinkdb --bind all
|
|
fi
|