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Docker Swarm Mode Cluster on Amazon

This script will create a 3-node (1 manager, 2 worker) Swarm Mode cluster on Amazon.

Required

  1. Amazon account

  2. Docker 1.12 RC4+

Script

Start Ubuntu instance

aws ec2 run-instances --image-id ami-06116566 --count 3 --instance-type t2.micro --key-name arun@couchbase --security-groups swarm-mode

Install experimental Docker

publicIp=`aws ec2 describe-instances --filters Name=instance-state-name,Values=running | jq -r .Reservations[].Instances[].PublicDnsName`
privateIp=`aws ec2 describe-instances --filters Name=instance-state-name,Values=running | jq -r .Reservations[].Instances[].PrivateDnsName`
for node in $publicIp
do
    ssh -o StrictHostKeyChecking=no -i ~/.ssh/aruncouchbase.pem ubuntu@$node 'curl -fsSL https://experimental.docker.com/ | sh'
    ssh -i ~/.ssh/aruncouchbase.pem ubuntu@$node 'sudo usermod -aG docker ubuntu'
    ssh -i ~/.ssh/aruncouchbase.pem ubuntu@$node 'docker version'
done

Setup Swarm mode

publicIpList=`aws ec2 describe-instances --filters Name=instance-state-name,Values=running | jq -r .Reservations[].Instances[].PublicDnsName`
privateIpList=`aws ec2 describe-instances --filters Name=instance-state-name,Values=running | jq -r .Reservations[].Instances[].PrivateDnsName`

publicIp=($publicIpList)
privateIp=($privateIpList)

#Setup Swarm manager
ssh -o StrictHostKeyChecking=no -i ~/.ssh/aruncouchbase.pem ubuntu@${publicIp[0]} "docker swarm init --listen-addr ${privateIp[0]}:2377 --secret mySecret"

#Setup Swarm worker
ssh -o StrictHostKeyChecking=no -i ~/.ssh/aruncouchbase.pem ubuntu@${publicIp[1]} "docker swarm join --secret mySecret ${privateIp[0]}:2377"
ssh -o StrictHostKeyChecking=no -i ~/.ssh/aruncouchbase.pem ubuntu@${publicIp[2]} "docker swarm join --secret mySecret ${privateIp[0]}:2377"

ssh -o StrictHostKeyChecking=no -i ~/.ssh/aruncouchbase.pem ubuntu@${publicIp[0]} "docker node ls"

Terminate instances

aws ec2 terminate-instances --instance-ids `aws ec2 describe-instances --filters Name=instance-state-name,Values=running | jq -r .Reservations[].Instances[].InstanceId`