The following table lists the environment variables used by the Dapr runtime, CLI, or from within your application:
|Environment Variable||Used By||Description|
|APP_ID||Your application||The id for your application, used for service discovery|
|APP_PORT||Your application||The port your application is listening on|
|APP_API_TOKEN||Your application||The token used by the application to authenticate requests from Dapr API. Read authenticate requests from Dapr using token authentication for more information.|
|DAPR_HTTP_PORT||Your application||The HTTP port that the Dapr sidecar is listening on. Your application should use this variable to connect to Dapr sidecar instead of hardcoding the port value. Set by the Dapr CLI run command for self-hosted or injected by the
|DAPR_GRPC_PORT||Your application||The gRPC port that the Dapr sidecar is listening on. Your application should use this variable to connect to Dapr sidecar instead of hardcoding the port value. Set by the Dapr CLI run command for self-hosted or injected by the
|DAPR_METRICS_PORT||Your application||The HTTP Prometheus port to which Dapr sends its metrics information. With this variable, your application sends its application-specific metrics to have both Dapr metrics and application metrics together. See metrics-port for more information|
|DAPR_PROFILE_PORT||Your application||The profiling port through which Dapr lets you enable profiling and track possible CPU/memory/resource spikes in your application’s behavior. Enabled by
|DAPR_API_TOKEN||Dapr sidecar||The token used for Dapr API authentication for requests from the application. Enable API token authentication in Dapr.|
|NAMESPACE||Dapr sidecar||Used to specify a component’s namespace in self-hosted mode.|
|DAPR_DEFAULT_IMAGE_REGISTRY||Dapr CLI||In self-hosted mode, it is used to specify the default container registry to pull images from. When its value is set to
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