Architecture

The Charmed Temporal ecosystem consists of a number of different charmed operators related together. The diagram below shows a high-level illustration of the different charms and their relations. The charmed components are as follows:

• Temporal Server: The Temporal server is a group of four independently scalable services (frontend, history, matching and worker). It is responsible for state management and task synchronization among other functionalities.

• Temporal Admin: The Temporal Admin Tools are a set of command-line utilities used to configure and support the Temporal server.

• Temporal UI: The Temporal Web UI is a user interface used to interact with and monitor Temporal workflows and activities.

• PostgreSQL K8s: For Temporal persistence and visibility, we use the PostgreSQL K8s charmed operator. The PostgreSQL K8s charm can be deployed and related to the Temporal server.

• Nginx Ingress Integrator: The Charmed Temporal K8s operator exposes its service ports using the Nginx Ingress Integrator charmed operator.

• OpenFGA: The Charmed Temporal K8s operator can relate to the OpenFGA K8s charmed operator to enable an authorization layer and control namespace-level access.

• S3 Integrator: The Charmed Temporal K8s operator can be used to enable event histories archival in an S3-compatible storage by relating it to the S3 Integrator charmed operator.

• Temporal Worker: The Temporal Worker is the entity which listens and polls on specific task queue, and executes code in response to the task.