36 lines
1.4 KiB
Bash
Executable File
36 lines
1.4 KiB
Bash
Executable File
#!/bin/bash
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# Copyright 2017 The Openstack-Helm Authors.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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set -e
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UTILS_IMAGE=docker.io/openstackhelm/gate-utils:v0.1.0
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NODE_IPS=$(mktemp --suffix=.txt)
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kubectl get nodes -o json | jq -r '.items[].status.addresses[] | select(.type=="InternalIP").address' | sort -V > $NODE_IPS
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FIRST_IP_SUBNET=$(sudo docker run --rm ${UTILS_IMAGE} ipcalc "$(head -n 1 ${NODE_IPS})/24" | awk '/^Network/ { print $2 }')
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LAST_IP_SUBNET=$(sudo docker run --rm ${UTILS_IMAGE} ipcalc "$(tail -n 1 ${NODE_IPS})/24" | awk '/^Network/ { print $2 }')
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rm -f $NODE_IPS
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function ip_diff {
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echo $(($(echo $LAST_IP_SUBNET | awk -F '.' "{ print \$$1}") - $(echo $FIRST_IP_SUBNET | awk -F '.' "{ print \$$1}")))
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}
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for X in {1..4}; do
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if ! [ "$(ip_diff ${X})" -eq "0" ]; then
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SUBMASK=$((((${X} - 1 )) * 8))
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break
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elif [ ${X} -eq "4" ]; then
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SUBMASK=24
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fi
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done
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echo ${FIRST_IP_SUBNET%/*}/${SUBMASK}
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