Azure DDNS

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A nodejs application that gets your public IP and updates an Azure DNS zone to provide a dynamic DNS service.

Prereqs

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1. Deploy a DNS Zone for your domain and add the nameservers to your registrar
2. Create an app registration in your Azure Tenant
3. Add a client secret to the app registration
4. Provide the app registration Reader over the resource group and DNS Zone Contributor over the DNS Zone

Required Environments

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Variable	Description
TENANT_ID	Tenant ID the DNS zone is deployed in (You can use one of [TENANT_ID or ARM_TENANT_ID or AZURERM_TENANT_ID])
CLIENT_ID	The client ID of the app registration (You can use one of [CLIENT_ID or ARM_CLIENT_ID or AZURERM_CLIENT_ID])
CLIENT_SECRET	The client secret of the app registration (You can use one of [CLIENT_SECRET or ARM_CLIENT_SECRET or AZURERM_CLIENT_SECRET])
ARM_TENANT_ID	Alias for TENANT_SECRET
ARM_CLIENT_ID	Alias for CLIENT_ID
ARM_CLIENT_SECRET	Alias for CLIENT_SECRET
AZURERM_TENANT_ID	Alias for TENANT_SECRET
AZURERM_CLIENT_ID	Alias for CLIENT_ID
AZURERM_CLIENT_SECRET	Alias for CLIENT_SECRET
SUBSCRIPTION_ID	Subscription ID where the DNS zone is located
RESOURCE_GROUP_NAME	Resource group where the DNS zone is located
DNS_ZONE	Azure DNS zone name
RECORD	@ or subdomain

Local Example

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WillsMBP.local: ~/Documents/Projects/azure-ddns
🥞 >TENANT_ID='820ff242-a754-4e7a-9be9-de7b5350251f' \
CLIENT_ID='27b5946c-6e11-4e62-b081-0d11138cccd8' \
CLIENT_SECRET='n1S8Q~bFKlqO13EEPxl0TK7NEUZjQFLgeLy39csu' \
SUBSCRIPTION_ID='8d8aeb08-5ca6-4f8c-a3ef-e9ab11cc4449' \
RESOURCE_GROUP_NAME='rg-dns-example' \
DNS_ZONE='wdew.uk' \
RECORD='home' \
node index.js

Updated - Domain: home.wdew.uk IP: 1.22.25.29

Values are for example and should be updated