NewServiceList creates a new service list with the provided initialiser.

Run the service with its dependencies.

ExternalServiceList holds the initialiser and initialisation state of external services.

Init implements the Initialiser interface to initialise dependencies.

Service contains all the configs, server and clients to run the observation API.

IHealthCheck defines the required methods from Healthcheck.

Initialiser defines the methods to initialise external services.

IServer defines the required methods from the HTTP server.