add telemetry (#6926)

* add telemetry

* fix go mod

* add default telemetry server url

* Update README.md

* replace with broker count instead of s3 count

* Update telemetry.pb.go

* github action to deploy

telemetry/server/Makefile

@@ -0,0 +1,97 @@
+.PHONY: build run clean test deps proto integration-test test-all
+
+# Build the telemetry server
+build:
+	go build -o telemetry-server .
+
+# Run the server in development mode
+run:
+	go run . -port=8080 -dashboard=true -cleanup=1h -max-age=24h
+
+# Run the server in production mode
+run-prod:
+	./telemetry-server -port=8080 -dashboard=true -cleanup=24h -max-age=720h
+
+# Clean build artifacts
+clean:
+	rm -f telemetry-server
+	rm -f ../test/telemetry-server-test.log
+	go clean
+
+# Run unit tests
+test:
+	go test ./...
+
+# Run integration tests
+integration-test:
+	@echo "🧪 Running telemetry integration tests..."
+	cd ../../ && go run telemetry/test/integration.go
+
+# Run all tests (unit + integration)
+test-all: test integration-test
+
+# Install dependencies
+deps:
+	go mod download
+	go mod tidy
+
+# Generate protobuf code (requires protoc)
+proto:
+	cd .. && protoc --go_out=. --go_opt=paths=source_relative proto/telemetry.proto
+
+# Build Docker image
+docker-build:
+	docker build -t seaweedfs-telemetry .
+
+# Run with Docker
+docker-run:
+	docker run -p 8080:8080 seaweedfs-telemetry -port=8080 -dashboard=true
+
+# Development with auto-reload (requires air: go install github.com/cosmtrek/air@latest)
+dev:
+	air
+
+# Check if protoc is available
+check-protoc:
+	@which protoc > /dev/null || (echo "protoc is required for proto generation. Install from https://grpc.io/docs/protoc-installation/" && exit 1)
+
+# Full development setup
+setup: check-protoc deps proto build
+
+# Run a quick smoke test
+smoke-test: build
+	@echo "🔥 Running smoke test..."
+	@timeout 10s ./telemetry-server -port=18081 > /dev/null 2>&1 & \
+	SERVER_PID=$$!; \
+	sleep 2; \
+	if curl -s http://localhost:18081/health > /dev/null; then \
+		echo "✅ Smoke test passed - server responds to health check"; \
+	else \
+		echo "❌ Smoke test failed - server not responding"; \
+		exit 1; \
+	fi; \
+	kill $$SERVER_PID 2>/dev/null || true
+
+# Continuous integration target
+ci: deps proto build test integration-test
+	@echo "🎉 All CI tests passed!"
+
+# Help
+help:
+	@echo "Available targets:"
+	@echo "  build           - Build the telemetry server binary"
+	@echo "  run             - Run server in development mode"
+	@echo "  run-prod        - Run server in production mode"
+	@echo "  clean           - Clean build artifacts"
+	@echo "  test            - Run unit tests"
+	@echo "  integration-test- Run integration tests"
+	@echo "  test-all        - Run all tests (unit + integration)"
+	@echo "  deps            - Install Go dependencies"
+	@echo "  proto           - Generate protobuf code"
+	@echo "  docker-build    - Build Docker image"
+	@echo "  docker-run      - Run with Docker"
+	@echo "  dev             - Run with auto-reload (requires air)"
+	@echo "  smoke-test      - Quick server health check"
+	@echo "  setup           - Full development setup"
+	@echo "  ci              - Continuous integration (all tests)"
+	@echo "  help            - Show this help"