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Assign a DigitalOcean Floating IP to a Droplet
#!/usr/bin/python
import os
import sys
import requests
import json
api_base = 'https://api.digitalocean.com/v2'
def usage():
print('{0} [Floating IP] [Droplet ID]'.format(sys.argv[0]))
print('\nYour DigitialOcean API token must be in the "DO_TOKEN"'
' environmental variable.')
def main(floating_ip, droplet_id):
payload = {'type': 'assign', 'droplet_id': droplet_id}
headers = {'Authorization': 'Bearer {0}'.format(os.environ['DO_TOKEN']),
'Content-type': 'application/json'}
url = api_base + "/floating_ips/{0}/actions".format(floating_ip)
r = requests.post(url, headers=headers, data=json.dumps(payload))
resp = r.json()
if 'message' in resp:
print('{0}: {1}'.format(resp['id'], resp['message']))
sys.exit(1)
else:
print('Moving IP address: {0}'.format(resp['action']['status']))
if __name__ == "__main__":
if 'DO_TOKEN' not in os.environ or not len(sys.argv) > 2:
usage()
sys.exit()
main(sys.argv[1], sys.argv[2])
@sonamsamdupkhangsar
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sonamsamdupkhangsar commented Aug 19, 2016

I am using this script as referenced in the DO link (https://www.digitalocean.com/community/tutorials/how-to-create-a-high-availability-setup-with-corosync-pacemaker-and-floating-ips-on-ubuntu-14-04) for setting up failover using newer Ubuntu-16. I tried running the script alone and it fails on not understanding the "requests" module.

Basically, when I shutdown my primary server, I can see in crm_mon pointing to secondary but floating ip reassignment is not working.

@andrewsomething
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Author

andrewsomething commented Aug 19, 2016

You can install the requests module with sudo apt install python-requests

@sonamsamdupkhangsar
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sonamsamdupkhangsar commented Aug 19, 2016

Thank you

@derekdon
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derekdon commented Jan 16, 2018

Don't suppose you know of any docker image (keepalived, corosync and pacemaker, heartbeat) that has been setup to work with digital ocean floating ip re-assignment? Working with a stack in docker cloud that needs a HA setup.

@jarnovanleeuwen
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jarnovanleeuwen commented Mar 6, 2019

If you do not want to install Python, see the Bash version of the script below (requires curl instead, though):

#!/usr/bin/env bash
API_BASE="https://api.digitalocean.com/v2"

if [[ -z "${DO_TOKEN}" ]] || [[ $# != 2 ]]; then
    echo "Usage: $0 <Floating IP> <Droplet ID>"
    echo "Your DigitalOcean API token must be in the \"DO_TOKEN\" environmental variable."
    exit 1
fi

curl -X POST -H "Content-Type: application/json" -H "Authorization: Bearer ${DO_TOKEN}" -d "{\"type\":\"assign\",\"droplet_id\":$2}" "${API_BASE}/floating_ips/$1/actions"

@kpoleyn
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kpoleyn commented May 18, 2021

If you do not want to install Python, see the Bash version of the script below (requires curl instead, though):

#!/usr/bin/env bash
API_BASE="https://api.digitalocean.com/v2"

if [[ -z "${DO_TOKEN}" ]] || [[ $# != 2 ]]; then
    echo "Usage: $0 <Floating IP> <Droplet ID>"
    echo "Your DigitalOcean API token must be in the \"DO_TOKEN\" environmental variable."
    exit 1
fi

curl -X POST -H "Content-Type: application/json" -H "Authorization: Bearer ${DO_TOKEN}" -d "{\"type\":\"assign\",\"droplet_id\":$2}" "${API_BASE}/floating_ips/$1/actions"

Thx Jarno, wasted a few hours before I found your solution

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