openstack-helm/tools/deployment/multinode/kube-node-subnet.sh
jinyuanliu e56a95b50b The generator parameter has been discarded
Generator parameter has been deprecated since V1.18.0
66944ff3b5

Change-Id: I67ee89e9087bff04e95c44340e9f6ebeeb7a86fa
2022-02-14 03:56:30 -05:00

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#!/bin/bash
# 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 -e
UTILS_IMAGE=docker.io/openstackhelm/gate-utils:v0.1.0
NODE_IPS=$(mktemp)
kubectl get nodes -o json | jq -r '.items[].status.addresses[] | select(.type=="InternalIP").address' | sort -V > $NODE_IPS
function run_and_log_ipcalc {
POD_NAME="tmp-$(cat /dev/urandom | env LC_CTYPE=C tr -dc a-z | head -c 5; echo)"
kubectl run ${POD_NAME} \
--wait \
--image ${UTILS_IMAGE} \
--restart=Never \
ipcalc -- "$1"
end=$(($(date +%s) + 900))
until kubectl get pod/${POD_NAME} -o go-template='{{.status.phase}}' | grep -q Succeeded; do
now=$(date +%s)
[ $now -gt $end ] && echo containers failed to start. && \
kubectl get pod/${POD_NAME} -o wide && exit 1
done
kubectl logs pod/${POD_NAME}
kubectl delete pod/${POD_NAME}
}
FIRST_IP_SUBNET=$(run_and_log_ipcalc "$(head -n 1 ${NODE_IPS})/24" | awk '/^Network/ { print $2 }')
LAST_IP_SUBNET=$(run_and_log_ipcalc "$(tail -n 1 ${NODE_IPS})/24" | awk '/^Network/ { print $2 }')
rm -f $NODE_IPS
function ip_diff {
echo $(($(echo $LAST_IP_SUBNET | awk -F '.' "{ print \$$1}") - $(echo $FIRST_IP_SUBNET | awk -F '.' "{ print \$$1}")))
}
for X in {1..4}; do
if ! [ "$(ip_diff ${X})" -eq "0" ]; then
SUBMASK=$((((${X} - 1 )) * 8))
break
elif [ ${X} -eq "4" ]; then
SUBMASK=24
fi
done
echo ${FIRST_IP_SUBNET%/*}/${SUBMASK}