Go-Chassis is a microservice framework for rapid development of microservices in Go
Why use Go chassis
go chassis is designed as a protocol-independent framework, any protocol is able to integrate with go chassis and leverage same function like load balancing, circuit breaker,rate limiting, routing management, those function resilient your service
go chassis makes service observable by bringing open tracing and prometheus to it.
go chassis is flexible, many different modules can be replaced by other implementation, like registry, metrics, handler chain, config server etc
With many build-in function like route management, circuit breaker, load balancing, monitoring etc, your don't need to investigate, implement and integrate many solutions yourself.
go chassis supports Istio platform, Although Istio is a great platform with a service mesh in data plane, it surely decrease the throughput and increase the latency of your service go chassis can bring better performance to go program, you can use Istio configurations to control go chassis.
- Pluggable registrator and discovery service: Support Service center, istio pilot, kubernetes and file based registry, fit both client side discovery and server side discovery pattern
- Pluggable Protocol: You can custom your own protocol, by default support http and grpc
- Multiple server management: you can separate API by protocols and ports
- Circuit breaker: Protect your micro service system in runtime
- Route management: Able to route to different service based on weight and match rule to achieve Canary Release easily
- Client side Load balancing: Able to custom strategy
- Rate limiting: Both client side and server side rate limiting
- Pluggable Cipher: Able to custom your own cipher for AKSK and TLS certs
- Handler Chain: Able to add your own code during service calling for client and server side
- Metrics: Able to expose Prometheus metric API automatically and custom metrics reporter
- Tracing:Use opentracing-go as standard library, easy to integrate tracing impl
- Logger: You can custom your own writer to sink log, by default support file and stdout
- Hot-reconfiguraion: Powered by go-archaius, configurations can be reload in runtime, like load balancing, circuit breaker, rate limiting
- Dynamic Configuration framework: Powered by go-archaius, developer is able to develop a service which has hot-reconfiguration feature easily
- Fault Injection: In consumer side, you can inject faults to bring chaos testing into your system
You can check plugins to see more features
1.Generate go mod
go mod init
2.Add go chassis
GO111MODULE=on go get github.com/go-chassis/go-chassis
if you are facing network issue
You can check examples here
NOTICE: Now examples is migrating to here
Go-Chassis supports 3 types of communication protocol.
- Rest - REST is an approach that leverages the HTTP protocol for communication.
- Highway - This is a RPC communication protocol, it was deprecated.
- grpc - native grpc protocol, go chassis bring circuit breaker, route management etc to grpc.
Debug suggestion for dlv:
-tags debug into go build arguments before debugging, if your go version is go1.10 onward.
go build -tags debug -o server -gcflags "all=-N -l" server.go
debug tag to resolve dlv debug issue:
this part introduce some eco systems that go chassis can run with
With ServiceComb service center as registry, go chassis supply more features like contract management and multiple service registry, highly recommended. that will not prevent you from using kubernetes or Istio, Because service center can aggregate heterogeneous registry and give you a unified service registry entry point.
Kubernetes and Istio
go chassis has k8s registry and Istio registry plugins, and support Istio traffic management you can use spring cloud or Envoy with go chassis under same service discovery service.
Other project using go-chassis
- apache/servicecomb-kie: A distributed configuration management service
- apache/servicecomb-mesher: A service mesh able to co-work with go chassis
To start developing go chassis
Install go 1.12+
Clone the project
git clone firstname.lastname@example.org:go-chassis/go-chassis.git
- Download vendors
cd go-chassis export GO111MODULE=on go mod download #optional export GO111MODULE=on go mod vendor
NOTICE：if you do not use mod, We can not ensure you the compatibility. however you can still maintain your own vendor, which means you have to solve compiling issue your own.
- Install service-center