CURL vs. Dropletkit

1.dropletkit_cmd.rb

require "droplet_kit"
require "net/http"

userdata = "
#cloud-config

coreos:
  etcd2:
    discovery: https://discovery.etcd.io/xxx
    advertise-client-urls: http://$private_ipv4:2379,http://$private_ipv4:4001
    initial-advertise-peer-urls: http://$private_ipv4:2380
    listen-client-urls: http://0.0.0.0:2379,http://0.0.0.0:4001
    listen-peer-urls: http://$private_ipv4:2380
  units:
    - name: etcd2.service
      command: start
    - name: fleet.service
      command: start
"

client      = DropletKit::Client.new(access_token: ENV["DO_KEY"])
my_ssh_keys = client.ssh_keys.all.collect{ |key| "#{key.id}" }
["nyc-coreos-01"].each do |name|
  droplet     = DropletKit::Droplet.new(
    name:               name,
    region:             'nyc3',
    image:              'coreos-stable',
    size:               '1GB',
    private_networking: true,
    user_data:          userdata,
    ssh_keys:           my_ssh_keys
  )
  droplet     = client.droplets.create(droplet)
end

2.curl.sh

curl --request POST "https://api.digitalocean.com/v2/droplets" \
     --header "Content-Type: application/json" \
     --header "Authorization: Bearer $DO_KEY" \
     --data '{
      "region":"nyc3",
      "image":"coreos-stable",
      "size":"512mb",
      "name":"core-1",
      "private_networking":true,
      "ssh_keys":['$SSH_KEY_ID'],
      "user_data": "'"$(cat cloud-config-2.yaml | sed 's/"/\\"/g')"'"
}'

3.cloud-config-for-curl-command.yaml

#cloud-config

coreos:
  etcd2:
    discovery: https://discovery.etcd.io/xxx
    advertise-client-urls: http://$private_ipv4:2379,http://$private_ipv4:4001
    initial-advertise-peer-urls: http://$private_ipv4:2380
    listen-client-urls: http://0.0.0.0:2379,http://0.0.0.0:4001
    listen-peer-urls: http://$private_ipv4:2380
  units:
    - name: etcd2.service
      command: start
    - name: fleet.service
      command: start