- Fix gRPC health checks: Set serving status for default service (empty string) in all services
- Consul checks the default service by default, not specific service names
- All services now set both default and specific service status to SERVING
- Update Consul registration logic to automatically detect HTTP vs gRPC services
- HTTP services (API Gateway) use HTTP health checks
- gRPC services use gRPC health checks
- Detection based on service tags and metadata
- Add API Gateway Consul registration
- Register with Docker service name in Docker environment
- Use HTTP health checks for API Gateway
- Proper host/port configuration handling
- Add API Gateway HTTP-to-gRPC handlers
- Implement service-specific handlers for Auth and Identity services
- Translate HTTP requests to gRPC calls
- Map gRPC error codes to HTTP status codes
Refactor core kernel and infrastructure to support true microservices
architecture where services are independently deployable.
Phase 1: Core Kernel Cleanup
- Remove database provider from CoreModule (services create their own)
- Update ProvideHealthRegistry to not depend on database
- Add schema support to database client (NewClientWithSchema)
- Update main entry point to remove database dependency
- Core kernel now provides only: config, logger, error bus, health, metrics, tracer, service registry
Phase 2: Service Registry Implementation
- Create ServiceRegistry interface (pkg/registry/registry.go)
- Implement Consul registry (internal/registry/consul/consul.go)
- Add Consul dependency (github.com/hashicorp/consul/api)
- Add registry configuration to config/default.yaml
- Add ProvideServiceRegistry() to DI container
Phase 3: Service Client Interfaces
- Create service client interfaces:
- pkg/services/auth.go - AuthServiceClient
- pkg/services/identity.go - IdentityServiceClient
- pkg/services/authz.go - AuthzServiceClient
- pkg/services/audit.go - AuditServiceClient
- Create ServiceClientFactory (internal/client/factory.go)
- Create stub gRPC client implementations (internal/client/grpc/)
- Add ProvideServiceClientFactory() to DI container
Phase 4: gRPC Service Definitions
- Create proto files for all core services:
- api/proto/auth.proto
- api/proto/identity.proto
- api/proto/authz.proto
- api/proto/audit.proto
- Add generate-proto target to Makefile
Phase 5: API Gateway Implementation
- Create API Gateway service entry point (cmd/api-gateway/main.go)
- Create Gateway implementation (services/gateway/gateway.go)
- Add gateway configuration to config/default.yaml
- Gateway registers with Consul and routes requests to backend services
All code compiles successfully. Core services (Auth, Identity, Authz, Audit)
will be implemented in Epic 2 using these foundations.
