--- title: "Azure" date: 2019-03-03T16:39:46+01:00 draft: false slug: azure --- Since: v0.4.0 Configuration for [Azure](https://azure.microsoft.com/services/dns/). - Code: `azure` {{% notice note %}} _Please contribute by adding a CLI example._ {{% /notice %}} ## Credentials | Environment Variable Name | Description | |-----------------------|-------------| | `AZURE_CLIENT_ID` | Client ID | | `AZURE_CLIENT_SECRET` | Client secret | | `AZURE_RESOURCE_GROUP` | Resource group | | `AZURE_SUBSCRIPTION_ID` | Subscription ID | | `AZURE_TENANT_ID` | Tenant ID | | `instance metadata service` | If the credentials are **not** set via the environment, then it will attempt to get a bearer token via the [instance metadata service](https://docs.microsoft.com/en-us/azure/virtual-machines/windows/instance-metadata-service). | The environment variable names can be suffixed by `_FILE` to reference a file instead of a value. More information [here](/lego/dns/#configuration-and-credentials). ## Additional Configuration | Environment Variable Name | Description | |--------------------------------|-------------| | `AZURE_METADATA_ENDPOINT` | Metadata Service endpoint URL | | `AZURE_POLLING_INTERVAL` | Time between DNS propagation check | | `AZURE_PROPAGATION_TIMEOUT` | Maximum waiting time for DNS propagation | | `AZURE_TTL` | The TTL of the TXT record used for the DNS challenge | The environment variable names can be suffixed by `_FILE` to reference a file instead of a value. More information [here](/lego/dns/#configuration-and-credentials). ## More information - [API documentation](https://docs.microsoft.com/en-us/go/azure/) - [Go client](https://github.com/Azure/azure-sdk-for-go)