cloneawsinstance function to clone an aws instance in the same region as the source instance

cloneawsinstance

function cloneinstance {
  awsinstanceid=$1
  region=${2:-us-east-1}
  awsprofile=${3:-seg}
  export AWS_DEFAULT_REGION=$region
  dt=$(date '+%Y%m%d%H%M%S')
  ami=$(aws --profile=${awsprofile} ec2 describe-instances --instance-ids $awsinstanceid --query 'Reservations[].Instances[].ImageId' --output=text)
  privatekey=$(aws --profile=${awsprofile} ec2 describe-instances --instance-ids $awsinstanceid --query 'Reservations[].Instances[].KeyName' --output=text)
  securitygroup=$(aws --profile=${awsprofile} ec2 describe-instances --instance-ids $awsinstanceid --query 'Reservations[].Instances[].NetworkInterfaces[].Groups[].GroupId' --output=text)
  instancetype=$(aws --profile=${awsprofile} ec2 describe-instances --instance-ids $awsinstanceid --query 'Reservations[].Instances[].InstanceType' --output=text)
  subnet=$(aws --profile=${awsprofile} ec2 describe-instances --instance-ids $awsinstanceid --query 'Reservations[].Instances[].SubnetId' --output=text)
  tag=$(aws --profile=${awsprofile} ec2 describe-instances --instance-ids $awsinstanceid --query "Reservations[].Instances[].Tags[?Key=='Name'].Value" --output=text)
  newtag="${tag}-${dt}"
   
  echo "ami: ${ami}"
  echo "privatekey: ${privatekey}"
  echo "securitygroup: ${securitygroup}"
  echo "instancetype: ${instancetype}"
  echo "subnet: ${subnet}"
  echo "tag: ${tag}"
  echo "newtag: ${newtag}"
  clonedawsinstanceid=$(aws --profile=${awsprofile} ec2 run-instances --image-id $ami --key-name $privatekey --security-group-ids $securitygroup --instance-type $instancetype --subnet-id $subnet --tag-specifications "ResourceType=instance,Tags=[{Key=Name,Value=${newtag}}]" "ResourceType=volume,Tags=[{Key=Name,Value=${newtag}}]" --query 'Instances[].InstanceId' --output=text)
  # AWS CLI doesn't return error codes so have to look for a valid id
  if [[ "${clonedawsinstanceid}" == i-* ]]; 
  then 
    echo -e "\t\tSuccessfully created. Instance ID: ${clonedawsinstanceid}"; 
  else 
    echo -e "\t\tSomething went wrong. Check your configuration."; 
  fi 
  echo -e "\t\tWaiting for it to come up..."
  aws --profile=${awsprofile} ec2 wait instance-running --instance-ids ${clonedawsinstanceid}
  echo -e "\t\tServer is up and ready"
  clonedawsinstance_ipaddress=$(aws --profile=${awsprofile} ec2 describe-instances --instance-ids ${clonedawsinstanceid} --query 'Reservations[].Instances[].PublicIpAddress' --output=text)
  echo "Cloned instance id: ${clonedawsinstanceid}"
  echo "Cloned instance public ip address: ${clonedawsinstance_ipaddress}"
}