Radius.Data/mongoDatabases@2025-08-01-preview

Description

The Radius.Data/mongoDatabases Resource Type deploys a Mongo-compatible database. To deploy a Mongo database, add a mongoDatabases resource to the application definition Bicep file. The Azure recipe uses Cosmos DB for MongoDB and exposes its endpoint and connection string as resource properties.

resource database 'Radius.Data/mongoDatabases@2025-08-01-preview' = {
  name: 'mongo'
  properties: {
    environment: environment
    application: myApplication.id
    database: 'mongo_db'
  }
}

To connect your container to the database, create a connection from the Container resource to the database as shown below.

resource frontend 'Radius.Compute/containers@2025-08-01-preview' = {
  name: 'frontend'
  properties: {
    application: myApplication.id
    environment: environment
    container: {
      image: 'frontend:1.25'
    }
    connections: {
      mongo: {
        source: database.id
      }
    }
  }
}

On compatible Kubernetes Container Recipes, the connection injects environment variables into the container for the database properties. The variables are named CONNECTION_<CONNECTION-NAME>_<PROPERTY-NAME>. In this example the connection name is mongo so the environment variables will be:

• CONNECTION_MONGO_DATABASE
• CONNECTION_MONGO_ENDPOINT
• CONNECTION_MONGO_CONNECTIONSTRING (secret-backed)

With Radius control-plane support from radius-project/radius#12709 and Kubernetes Container Recipe support from resource-types-contrib#300 or later, the same connection injects connectionString through a Kubernetes secret reference. For custom, older, or mixed-version Kubernetes deployments, use mongo.properties.secrets.name as the secretName and connectionString as the key in an explicitly authored secretKeyRef.

Portability note: this schema is platform-neutral so the same resource type works with Azure AVM, AWS Terraform modules, and Kubernetes recipes. Only the recipePack source plus parameters/outputs mapping change per platform; the developer-facing database knob and read-only connection surface stay identical.

Top-Level Properties

Object Properties

connections

secrets