Added Service Statuses

docs/concepts/services.md

@@ -21,3 +21,25 @@ Defang manages the deployment process for services. You can learn more about how
 :::info
 We plan to add support for other types of services in the future, including serverless functions.
 :::
+
+## Service Status
+
+An overview of the possible statuses for a service in Defang. 
+
+| Status | Details |
+|-|-|
+| BUILD_QUEUED | The service update has been received and is now in the queue for its image to be built. | 
+| BUILD_PROVISIONING | The container orchestrator is provisioning the necessary resources for building your service's image. | 
+| BUILD_PENDING | The necessary resources to build your service have been provisioned but the build has not yet been initiated. | 
+| BUILD_ACTIVATING | The container orchestrator is pulling the build container's image and creating the build container. | 
+| BUILD_RUNNING | The container which builds your service's image is successfully running. | 
+| BUILD_STOPPING | The container orchestrator has sent a termination signal to the build container and is waiting for the build process to stop. | 
+| BUILD_FAILED | The build container exited with a non-zero status code. | 
+| UPDATE_QUEUED | The service update has been received and is now in the queue. | 
+| SERVICE_DEPLOYMENT_PENDING | The necessary resources to run your service have been provisioned but the service has not yet been initiated. | 
+| SERVICE_DEPLOYMENT_COMPLETED | Your service has been deployed and is healthy. | 
+| SERVICE_DEPLOYMENT_FAILED | Your service could not be deployed. | 
+
+:::tip
+You can run the `defang compose ps` command to view a service's status.
+:::