Create DigitalOcean droplets

droplet.sh

#!/usr/bin/env bash
SIZE=1gb
IMAGE=ubuntu-16-10-x64
REGION=fra1
TAG=droplet_sh

function createDroplet() {
  : ${1?"Usage: createDroplet name sshkey-passphrase"}
  : ${2?"Usage: createDroplet name sshkey-passphrase"}

  set -x
  ssh-keygen -t rsa -b 4096 -C "${1}" -f ${1}_id_rsa -P ${2}
  FINGER_PRINT=$(doctl compute ssh-key import ${1} --public-key-file ${1}_id_rsa.pub --format FingerPrint --no-header)

  DROPLET_ID=$(doctl compute droplet create ${1} --size ${SIZE} --image ${IMAGE} --region ${REGION} --ssh-keys ${FINGER_PRINT} --no-header --format ID --wait)
  DROPLET_IP_ADDRESS=$(doctl compute droplet get $DROPLET_ID --no-header --format PublicIPv4)

  echo "DROPLET_NAME=${1}" > ${1}.env
  echo "DROPLET_ID=${DROPLET_ID}" >> ${1}.env
  echo "DROPLET_IP_ADDRESS=${DROPLET_IP_ADDRESS}" >> ${1}.env

  doctl compute droplet-action shutdown $ {DROPLET_ID}
  set +x
  #docker-machine create --driver generic --generic-ip-address $DROPLET_IP_ADDRESS --generic-ssh-key ${1}_id_rsa ${1}
}

function deleteDroplet() {
  doctl compute droplet ${1} --force
}

function batchCreateDroplet() {
  : ${1?"Usage: batchCreateDroplet names-file sshkey-passphrase"}
  : ${2?"Usage: batchCreateDroplet names-file sshkey-passphrase"}

  while read -r DROPLET_NAME; do
    mkdir ${DROPLET_NAME}
    pushd ${DROPLET_NAME}
    createDroplet ${DROPLET_NAME} ${2}
    #echo createDroplet ${DROPLET_NAME} ${2}
    popd
  done < ${1}
}

function md5Fingerprint () {
  : ${1?"Usage: md5Fingerprint keyfile"}
  ssh-keygen -l -E md5 -f ${1} | awk {'print substr($2,5)'}
}