cloudflare-change-datacenter-dns

Introduction

A script to update a selection of DNS zone records at CloudFlare. Intended to be used when failing over to another datacenter where multiple services are hosted on 1 IP address and no other changes to these records are wanted and all other records are to remain untouched.

This work is based on thatjpk/cloudflare-ddns. Thanks !

Dependencies

You'll need a python interpreter and the following libraries:

• PyYAML (pip install pyyaml)
• Requests (pip install requests)

Usage

First copy config.yaml.template file to config.yaml and fill in your CloudFlare email address and API key. Then run the script as follows :

cloudflare-change-datacenter-dns.py [-h] [--debug] [--config CONFIG] [--zone ZONE] [--records RECORDS] [--newip NEWIP]

optional arguments:
  -h, --help         show this help message and exit
  --debug            Enable debug level logging (default: info level)
  --config CONFIG    Yaml config file (default: config.yaml)
  --zone ZONE        DNS zone (example: somezone.org)
  --records RECORDS  DNS zone records to change (example: www03,somezone.org,acceptance)
  --newip NEWIP      New IP address (example: 127.0.0.1)

Here is an example run where video was already set to the new intended IP address but dev not yet. The script skips all other records it finds in the zone :

./cloudflare-change-datacenter-dns.py --zone somedomain.org --records video,dev --newip 127.0.0.1

2017-05-05 11:46:33,671 INFO Work on domain somedomain.org
2017-05-05 11:46:33,671 INFO Work on records ['video', 'dev']
2017-05-05 11:46:33,671 INFO New IP 127.0.0.1
2017-05-05 11:46:33,674 INFO Starting new HTTPS connection (1): api.cloudflare.com
2017-05-05 11:46:34,490 INFO Skip somedomain.org
2017-05-05 11:46:34,491 INFO Skip acceptance
2017-05-05 11:46:34,491 INFO Skip api
2017-05-05 11:46:34,491 INFO Skip developers
2017-05-05 11:46:34,491 INFO Change dev.somedomain.org to 127.0.0.1
2017-05-05 11:46:34,492 INFO Starting new HTTPS connection (1): api.cloudflare.com
2017-05-05 11:46:34,778 INFO Updated dev.somedomain.org to 127.0.0.1
2017-05-05 11:46:34,778 INFO Skip images
2017-05-05 11:46:34,778 INFO Skip origin
2017-05-05 11:46:34,778 INFO Skip static1
2017-05-05 11:46:34,778 INFO Skip storage
2017-05-05 11:46:34,778 INFO Keep video.somedomain.org unchanged with 127.0.0.1
2017-05-05 11:46:34,778 INFO Skip www

Credits and Thanks

• CloudFlare for hosting DNS and having an API.
• thatjpk/cloudflare-ddns for writing cloudflare-ddns