go-server-with-otel 🚀

A powerful and flexible template for building Go HTTP + GRPC servers with full OpenTelemetry (OTEL) support. Bootstrapped with the go-app framework to provide all the bells and whistles right out of the box. Ideal for rapidly creating production-ready microservices.

Check out the go-app framework for more detail there.

🌟 Features

• 📈 OpenTelemetry (OTEL) Metrics & Traces – Comprehensive observability with built-in support for metrics and traces.
• 📝 Logging with Zerolog – High-performance structured logging with zerolog for ultra-fast, leveled logging.
• 💬 GRPC + GRPC-Gateway – Supports RESTful JSON APIs alongside gRPC with auto-generated Swagger (OpenAPI2) specs.
• 🌐 HTTP and GRPC Middleware – Flexible middleware support for HTTP and GRPC to enhance request handling, authentication, and observability.
• 📦 Multi-Arch Builds – Robust Makefile that supports building for multiple architectures (amd64, arm64, etc.).
• 🐳 Docker Image Generation – Easily build Docker images using make docker.
• 📜 Config Schema Generation – Automatically generate JSON schemas for configuration validation.
• 📝 Proto Compilation – Seamlessly compile .proto files with make proto.
• 🔄 Project Renaming – Easily rename your project using make rename NAME=your.gitremote.com/pathto/repo.
• 📦 Helm Chart – Deploy your application with Kubernetes using the provided Helm chart.
• 🤖 Gitea CI Integration – Out-of-the-box Gitea CI pipeline configuration with .gitea/workflows/ci.yaml.
• ⚙️ Expandable Configuration – Extend your app-specific configuration with go-app's built-in logging, HTTP, and GRPC config support.

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📚 Getting Started

1. Install tools:

   • Install make, protoc, and go using brew, apt, etc..
   • Install protoc plugins (provided in go.mod tool()):
     • go get -v tool && go install -v tool

2. Rename your package:

   make rename NAME=my.gitremote.com/pathto/repo
   

3. Review the config struct: Update and customize your app-specific configuration. This merges with go-app's configuration, providing logging, HTTP, and GRPC config for free.

4. Generate a new JSON schema:

   make schema
   

   • Ensure your structs have yaml and json tags.
   • With the yaml-language-server LSP plugin, the schema will be auto-detected in your config.yaml.

5. Compile proto files:

   make proto
   

   • Add paths under proto/ as necessary.

6. Implement your application logic.

7. Update Gitea CI configuration: Modify parameters in .gitea/workflows/ci.yaml as needed.

8. Tag your release: git tag v0.1.0 and push git push --tags

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📂 Project Structure

• proto/ - Protobuf definitions and generated files.
• api/ - Auto-generated code for proto, grpc-gateway, and OpenAPI2 spec
• pkg/config/ - Custom config, merged with go-app configuration
• pkg/demo(http|grpc)/ - HTTP and GRPC server implementations
• helm/ - Helm chart for deploying your application to Kubernetes.
• .gitea/workflows/ - CI pipelines for automated builds and tests.

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🔥 Ready to build something awesome? Let's go! 🎉