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# Dynamic DNS using DigitalOcean's DNS Services
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A script that pushes the public IP address of the running machine to DigitalOcean's DNS API's. It requires an existing A record to update. The resulting container image is roughly around 7 MB (thanks to Alpine Linux).
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## Setup
Assuming you already have a DigitalOcean account and your domain associated with it. Just add an A record with desired name and IP address. That's it!
## Usage
Pick one of the options below using the following settings:
* **DIGITALOCEAN_TOKEN:** The token you generate in DigitalOcean's API settings.
* **DOMAIN:** The domain your subdomain is registered at. (i.e. `foo.com` for `home.foo.com` )
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* **NAME:** Subdomain to use. (name in A record) (i.e. `home` for `home.foo.com` ). Multiple subdomains must be separated by semicolons `;`
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* **SLEEP_INTERVAL:** Polling time in seconds. (default: 300)
### Docker (Recommended)
```
$ docker pull tunix/digitalocean-dyndns
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$ docker run -d --name dyndns \
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-e DIGITALOCEAN_TOKEN="your_token_here" \
-e DOMAIN="yourdomain.com" \
-e NAME="subdomain" \
-e SLEEP_INTERVAL=2 \
tunix/digitalocean-dyndns
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```
### Manual
You can also create a cronjob using below command:
```
$ DIGITALOCEAN_TOKEN="your_token_here" DOMAIN="yourdomain.com" NAME="subdomain" SLEEP_INTERVAL=2 ./dyndns.sh
```
