ubuntuPackerImage/initDockerClusterLoopJoin.sh at main · macauyeah/ubuntuPackerImage · GitHub

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#!/bin/bash

# echo every command
set -o xtrace
# exit when error
set -e
# Causes a pipeline to return the exit status of the last command in the pipe that returned a non-zero return value.
set -o pipefail

nodeName=("node21" "node22" "node23" "node24" "node25")
macAddress=("52:54:00:4b:ab:21" "52:54:00:4b:ab:22" "52:54:00:4b:ab:23" "52:54:00:4b:ab:24" "52:54:00:4b:ab:25")
ip=("10.13.31.21" "10.13.31.22" "10.13.31.23" "10.13.31.24" "10.13.31.25")

tmpNetplanFile="tmp-10-custom.yaml"

# assume that you already built os image with packer build template.pkr.hcl
imageFile=file://$PWD/output-autogenerated_1/packer-autogenerated_1

# setup five node
for ((i=0 ; i < 5 ; i++)) ; do
	multipass launch $imageFile --name ${nodeName[i]} --network name=localbr,mode=manual,mac="${macAddress[i]}" --cloud-init cloud-config.yaml
	cat << EOF > $tmpNetplanFile
network:
    version: 2
    ethernets:
        extra0:
            dhcp4: no
            match:
                macaddress: "${macAddress[i]}"
            addresses: [${ip[i]}/24]
EOF
	multipass transfer $tmpNetplanFile ${nodeName[i]}:.
	multipass exec -n ${nodeName[i]} -- sudo bash -c "sudo cp $tmpNetplanFile /etc/netplan/10-custom.yaml"
	multipass exec -n ${nodeName[i]} -- sudo chmod go-rxw /etc/netplan/10-custom.yaml
	multipass exec -n ${nodeName[i]} -- sudo netplan apply
done

multipass exec -n ${nodeName[0]} -- sudo docker swarm init --advertise-addr ${ip[0]}

for ((i=0 ; i < 4 ; i++)) ; do
	multipass exec -n ${nodeName[i]} -- sudo docker swarm join-token manager
	managerToken=$(multipass exec -n ${nodeName[i]} -- sudo docker swarm join-token manager -q)
	multipass exec -n ${nodeName[i+1]} -- sudo docker swarm join --token $managerToken ${ip[i]}:2377
done

# finish setup five node

# delete node21 and recreate and join to node22
sleep 30s
multipass stop ${nodeName[0]}
multipass delete ${nodeName[0]}
multipass purge
sleep 30s
multipass exec -n ${nodeName[1]} -- sudo docker node demote ${nodeName[0]}
multipass exec -n ${nodeName[1]} -- sudo docker node rm ${nodeName[0]}

for ((i=0 ; i < 1 ; i++)) ; do
	multipass launch $imageFile --name ${nodeName[i]} --network name=localbr,mode=manual,mac="${macAddress[i]}" --cloud-init cloud-config.yaml
	cat << EOF > $tmpNetplanFile
network:
    version: 2
    ethernets:
        extra0:
            dhcp4: no
            match:
                macaddress: "${macAddress[i]}"
            addresses: [${ip[i]}/24]
EOF
	multipass transfer $tmpNetplanFile ${nodeName[i]}:.
	multipass exec -n ${nodeName[i]} -- sudo bash -c "sudo cp $tmpNetplanFile /etc/netplan/10-custom.yaml"
	multipass exec -n ${nodeName[i]} -- sudo chmod go-rxw /etc/netplan/10-custom.yaml
	multipass exec -n ${nodeName[i]} -- sudo netplan apply
done


multipass exec -n ${nodeName[1]} -- sudo docker swarm join-token manager
managerToken=$(multipass exec -n ${nodeName[1]} -- sudo docker swarm join-token manager -q)
multipass exec -n ${nodeName[0]} -- sudo docker swarm join --token $managerToken ${ip[1]}:2377

# finish rejoin

rm $tmpNetplanFile