Node-RED flow to update Netlify DNS
This flow dynamically update a third level domain of a domain whose DNS are managed by Netlify.
Config
To work properly it needs a few parameters in global.config.ddns
When node start it should contains 3 keys:
- access_token generated from Netlify
- formatted_domain with dot replaced by underscore (eg. "test.com" -> "test_com")
- full_domain (eg. "home.test.com")
At runtime the flow should add another key publicIPv4 with the actual public ipv4
How it works
The flow run every minute. It checks for changes in the public ip in order to proceed. It get the list of entries for the specified domain then check for the target subdomain, if it exists is removed, finally it creates an entry with the public ip.
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newMsg;\n","outputs":1,"noerr":0,"x":130,"y":380,"wires":[["e7fb5a2.f497aa8"]]},{"id":"96033cb3.99054","type":"debug","z":"4e432359.e55b1c","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"true","targetType":"full","x":850,"y":380,"wires":[]},{"id":"65f557fb.7c6818","type":"debug","z":"4e432359.e55b1c","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"true","targetType":"full","x":610,"y":440,"wires":[]},{"id":"e8511f13.7ed32","type":"change","z":"4e432359.e55b1c","name":"set 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flow run every minute. It checks for changes in the public ip in order to proceed. It get the list of entries for the specified domain then check for the target subdomain, if it exists is removed, finally it creates an entry with the public ip.","x":150,"y":60,"wires":[]}]
