The following Docker image will help you easily implement a DDNS system in your infrastructure.
You can also configure it for every time the IP address is updated you receive a notification through a Telegram bot.
On its first start it will check the Public IP address through the Ipify API and update the IP in your DDNS provider. Every 5 seconds it will check this IP again and will only update if it changes. If you have configured Telegram notifications you can receive a notification every time it is modified.
An example of the request made by the container to update the IP is the following:
https://user:password@dyndns.myprovider.com/nic/update?hostname=n01.mydomain.es&myip=%IP%
Below you can see the Environment variables necessary for the operation of this container.
- DOMAINS -> Domain or list of domains separated by commas.
Example: n01.mydomain.es,n02.mydomain.es - URL_DDNS -> URL of your DDNS provider on which requests to update the IP will be made.
Example: dyndns.strato.com - USERNAME -> User to authenticate with your DDNS provider.
- PASSWORD -> Password to authenticate with your DDNS provider.
- TELEGRAM_TOKEN -> Token of your Telegram bot.
- ID_TELEGRAM -> Your Telegram ID to which the messages will be sent.
An example to launch the container could be the following (don't forget to update with your data):
docker run -d --restart unless-stopped \
-e "DOMAINS=n01.mydomain.es,n02.mydomain.es" \
-e "URL_DDNS=dyndns.strato.com" \
-e "USERNAME=myusername" \
-e "PASSWORD=mypassword"
-e "TELEGRAM_TOKEN=378572660:AAHaLn4NylzJuv4kl4XusEtG3L" \
-e "ID_TELEGRAM=123456" \
rafa93m/simple-ddns
To use it on an ARM architecture like a Raspberry Pi you can use the image: rafa93m/simple-ddns:arm