[Python] Basics on how to create instances with digitalocean

[Jason Monroe]

Hello All,

In the class tonight we didn't go over all of these various aspects but we
got through some of them.

I thought I would put together a sort of step by step to help those that
didn't go who had an interest get through it.



Step 1) Go to Digitalocean.com and sign up for an account

2) Click on the API button the top of the screen and create yourself an API
token
store the token in a safe place

3) Create an ssh-key
you can do this with ssh-keygen from a unix terminal
command: ssh-keygen -t rsa -b 8192 -f ~/.ssh/do

You can add a passphrase if you like


4) Go to Digital Ocean In the top on the right click the [ GEAR ICON ] ->
Select Settings
then go to Security on the left hand side

5) Select Add key
Paste in THE PUBLIC KEY
Which from the example above is ~/.ssh/do.pub

6) Select "Create Key"

7) Get the fingerprint for that key
curl -X GET -H 'Content-Type: application/json' -H 'Authorization: Bearer
b7d03a6947b217efb6f3ec3bd3504582' "
https://api.digitalocean.com/v2/account/keys"

The value b7XXX is your TOKEN

CURL mostly available on Linux, Mac, or Cygwin

8) You will get something like this:

{
  "ssh_keys": [
    {
      "id": 512189,
      "fingerprint": "3b:16:bf:e4:8b:00:8b:b8:59:8c:a9:d3:f0:19:45:fa",
      "public_key": "ssh-rsa
AAAAB3NzaC1yc2EAAAADAQABAAAAQQDDHr/jh2Jy4yALcK4JyWbVkPRaWmhck3IgCoeOO3z1e2dBowLh64QAM+Qb72pxekALga2oi4GvT+TlWNhzPH4V
example",
      "name": "My SSH Public Key"
    }
  ],
  "links": {
  },
  "meta": {
    "total": 1
  }}


9)  Record the Fingerprint value

10) Create a text file called myconfig.cfg

11) In the file put the following values
[mysection]
stoken=    REPLACE_ME_WITH_YOUR_TOKEN_REMOVE_LEADING_SPACES

12) The code to make it work

import requests
import ConfigParser

Config = ConfigParser.ConfigParser()
filename="myconfig.cfg"
Config.read(filename)
stoken=Config.get('mysection','stoken')

mypayload = {"name":"example.com
","region":"nyc3","size":"512mb","image":"ubuntu-14-04-x64","backups":False,"ipv6":True,'ssh_keys':["e3:5f:6c:79:f4:3d:8f:2e:22:d3:59:c3:e1:59:4b:3c"]}
headers = { 'Content-Type':'application/json','Authorization':'Bearer ' +
stoken }
endpoint= "https://api.digitalocean.com/v2/droplets"
r =requests.post(endpoint,json=mypayload,headers=headers)
print r.text


13) SEE THE ssh_keys VALUE?

14) Change that to be the value from STEP 8

15) You should then see
A JSON output like:
{"droplet":{"id":8710128,"name":"example.com","memory":512,"vcpus":1,"disk":20,"locked":true,"status":"new","kernel":{"id":5175,"name":"Ubuntu
14.04 x64
vmlinuz-3.13.0-57-generic","version":"3.13.0-57-generic"},"created_at":"2015-11-10T08:36:50Z","features":["virtio"],"backup_ids":[],"next_backup_window":null,"snapshot_ids":[],"image":{"id":13089493,"name":"14.04
x64","distribution":"Ubuntu","slug":"ubuntu-14-04-x64","public":true,"regions":["nyc1","ams1","sfo1","nyc2","ams2","sgp1","lon1","nyc3","ams3","fra1","tor1"],"created_at":"2015-08-10T21:30:19Z","min_disk_size":20,"type":"snapshot"},"size":{"slug":"512mb","memory":512,"vcpus":1,"disk":20,"transfer":1.0,"price_monthly":5.0,"price_hourly":0.00744,"regions":["nyc1","sgp1","sfo1","nyc2","lon1","nyc3","ams3","ams2","fra1","tor1"],"available":true},"size_slug":"512mb","networks":{"v4":[],"v6":[]},"region":{"name":"New
York
3","slug":"nyc3","sizes":["512mb","1gb","2gb","4gb","8gb","16gb","32gb","48gb","64gb"],"features":["private_networking","backups","ipv6","metadata"],"available":true}},"links":{"actions":[{"id":71198937,"rel":"create","href":"
https://api.digitalocean.com/v2/actions/71198937"}]}




16) After 60 seconds you should see something like this in the console
[image: Inline image 1]
You can test the login with
ssh -i ~/.ssh/do root at 159.203.140.36

after a few seconds you should see the root login prompt



DONE



More information on the digitial ocean API
https://developers.digitalocean.com/documentation/v2/

More information on python requests API and how to do more complicated
stuff in that library
http://docs.python-requests.org/en/latest/user/quickstart/#more-complicated-post-requests


More information on how to use ConfigParser: can be found at:

https://wiki.python.org/moin/ConfigParserExamples
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