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#!/bin/bash -e
# Copyright 2020 Samsung Electronics Co., Ltd.
#
# 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.
#
DNS_PORT=31555
CLUSTER_CONTROL=$( kubectl get no -l node-role.kubernetes.io/controlplane=true -o jsonpath='{.items..metadata.name}')
CLUSTER_IP=$(kubectl get no $CLUSTER_CONTROL -o jsonpath='{.metadata.annotations.rke\.cattle\.io/external-ip }')
SPATH="$( dirname "$( which "$0" )" )"
usage() {
cat << ==usage
$0 [cluster_domain] [lb_ip] [helm_chart_args] ...
[cluster_domain] Default value simpledemo.onap.org
[lb_ip] Default value LoadBalancer IP
[helm_chart_args] ... Optional arguments passed to helm install command
$0 --help This message
$0 --info Display howto configure target machine
==usage
}
target_machine_notice_info() {
cat << ==infodeploy
Extra DNS server already deployed:
1. You can add the DNS server to the target machine using following commands:
sudo iptables -t nat -A OUTPUT -p tcp -d 192.168.211.211 --dport 53 -j DNAT --to-destination $CLUSTER_IP:$DNS_PORT
sudo iptables -t nat -A OUTPUT -p udp -d 192.168.211.211 --dport 53 -j DNAT --to-destination $CLUSTER_IP:$DNS_PORT
sudo sysctl -w net.ipv4.conf.all.route_localnet=1
sudo sysctl -w net.ipv4.ip_forward=1
2. Update /etc/resolv.conf file with nameserver 192.168.211.211 entry on your target machine
==infodeploy
}
list_node_with_external_addrs()
{
local WORKER_NODES=$(kubectl get no -l node-role.kubernetes.io/worker=true -o jsonpath='{.items..metadata.name}')
for worker in $WORKER_NODES; do
local external_ip=$(kubectl get no $worker -o jsonpath='{.metadata.annotations.rke\.cattle\.io/external-ip }')
local internal_ip=$(kubectl get no $worker -o jsonpath='{.metadata.annotations.rke\.cattle\.io/internal-ip }')
if [ $internal_ip != $external_ip ]; then
echo $external_ip
break
fi
done
}
ingress_controller_ip() {
local metal_ns=$(kubectl get ns --no-headers --output=custom-columns=NAME:metadata.name |grep metallb-system)
if [ -z $metal_ns ]; then
echo $CLUSTER_IP
else
list_node_with_external_addrs
fi
}
deploy() {
local ingress_ip=$(ingress_controller_ip)
initdir = $(pwd)
cd $SPATH/bind9dns
if [ $# -eq 0 ]; then
local cl_domain="simpledemo.onap.org"
else
local cl_domain=$1
shift
fi
if [ $# -ne 0 ]; then
ingress_ip=$1
shift
fi
helm install . --set dnsconf.wildcard="$cl_domain=$ingress_ip" $@
cd $initdir
target_machine_notice_info
}
if [ $# -eq 1 ] && [ "$1" = "-h" ]; then
usage
elif [ $# -eq 1 ] && [ "$1" = "--help" ]; then
usage
elif [ $# -eq 1 ] && [ "$1" = "--info" ]; then
target_machine_notice_info
else
deploy $@
fi
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