53 lines
1.5 KiB
Bash
53 lines
1.5 KiB
Bash
#!/usr/bin/env bash
|
|
#
|
|
# Set up /etc/hosts so we can resolve all the nodes
|
|
|
|
set -e
|
|
|
|
IP_NW=$1
|
|
BUILD_MODE=$2
|
|
NUM_WORKER_NODES=$3
|
|
MASTER_IP_START=$4
|
|
NODE_IP_START=$5
|
|
|
|
if [ "$BUILD_MODE" = "BRIDGE" ]
|
|
then
|
|
# Determine machine IP from route table -
|
|
# Interface that routes to default GW that isn't on the NAT network.
|
|
sleep 5
|
|
MY_IP="$(ip route | grep default | grep -Pv '10\.\d+\.\d+\.\d+' | awk '{ print $9 }')"
|
|
|
|
# From this, determine the network (which for average broadband we assume is a /24)
|
|
MY_NETWORK=$(echo $MY_IP | awk 'BEGIN {FS="."} ; { printf("%s.%s.%s", $1, $2, $3) }')
|
|
|
|
# Create a script that will return this machine's IP to the bridge post-provisioner.
|
|
cat <<EOF > /usr/local/bin/public-ip
|
|
#!/usr/bin/env sh
|
|
echo -n $MY_IP
|
|
EOF
|
|
chmod +x /usr/local/bin/public-ip
|
|
else
|
|
# Determine machine IP from route table -
|
|
# Interface that is connected to the NAT network.
|
|
MY_IP="$(ip route | grep "^$IP_NW" | awk '{print $NF}')"
|
|
MY_NETWORK=$IP_NW
|
|
fi
|
|
|
|
# Remove unwanted entries
|
|
sed -e '/^.*ubuntu-jammy.*/d' -i /etc/hosts
|
|
sed -e "/^.*${HOSTNAME}.*/d" -i /etc/hosts
|
|
|
|
# Export PRIMARY IP as an environment variable
|
|
echo "PRIMARY_IP=${MY_IP}" >> /etc/environment
|
|
|
|
[ "$BUILD_MODE" = "BRIDGE" ] && exit 0
|
|
|
|
# Update /etc/hosts about other hosts (NAT mode)
|
|
echo "${MY_NETWORK}.${MASTER_IP_START} controlplane" >> /etc//hosts
|
|
for i in $(seq 1 $NUM_WORKER_NODES)
|
|
do
|
|
num=$(( $NODE_IP_START + $i ))
|
|
echo "${MY_NETWORK}.${num} node0${i}" >> /etc//hosts
|
|
done
|
|
|