vine

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Published: Jul 15, 2022 License: MIT Imports: 29 Imported by: 6

README

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Vine (/vaɪn/) 一套简单、高效、可插拔的分布式 RPC 框架。

简介

Vine 基于 go-micro 框架,因此继承了它的优点。并在此基础上增加性能和可用性。

架构图

vine架构图

功能

Vine 抽象化分布式系统的内部细节. 以下是主要功能.

  • 动态配置 (Dynamic Config) - 从任意地方加载和热加载动态配置。配置接口提供了一种方法,可以从任何源(如环境变量,文件,etcd)加载应用级别配置。同时支持合并源、甚至定义回退。

  • 数据存储 (Dao) - 一个简单的数据存储接口,用于查询,创建,删除数据记录。内置 memory,file,postgresSQL 等

  • 缓存接口 (Cache) - 支持内部数据缓存,保存临时数据。

  • 服务发现 (Service discovery) - 自动服务注册和名称解析。服务发现是微服务开发的核心功能。当服务A与服务B通讯时,需要知道服务B的IP地址等信息。Vine 内置(mdns)作为服务发现组件,它是零配置系统。

  • 负载均衡 (Load Balancing) - 基于服务发现的客户端负载均衡。当内部存在多个服务实例的地址时,我们需要一种方式确定路由到哪个节点,默认使用随机指定其中一个地址。同时在请求错误时重试不同的节点。

  • 消息编码 (Message Encoding) - 基于Content-Type的动态消息编码。Codec 为客户端和服务端提供 Go 类型的编码和解码,支持各种不同的类型。默认使用 protobuf 和 json。

  • gRPC 传输 (gRPC transport) - 基于 gRPC 的请求响应,同时支持双向流。Vine 为同步通讯提供一个抽象,使发向服务的请求被自动解析、负载均衡、拨号和流化。

  • 异步消息 (Async Messaging) - 内置订阅发布模型,作为异步通讯和事件驱动架构。事件通知属于微服务开发中的核心模式。默认的消息系统为 HTTP 事件代理。

  • 同步 (Synchronization) - 分布式系统通常以最终一致性的方式构建。内置的 Sync 接口实现分布式锁和领导选举。

  • 可插拔接口 (Pluggable Interfaces) - 得益于 Go 语言的抽象特性。 Vine 为每个模块提供抽象接口,正因为如此,这些接口都是可插拔的。可以在 github.com/vine-io/plugins 查询你需要的插件。

许可

Vine 遵守 Apache 2.0 开源许可.

文档

关于 vine 的文档可以参考 vine 文档

Documentation

Overview

Package vine is a pluggable framework for vine services

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func NewContext

func NewContext(ctx context.Context, s Service) context.Context

NewContext returns a new Context with the Service embedded within it.

func RegisterHandler

func RegisterHandler(s server.Server, h interface{}, opts ...server.HandlerOption) error

RegisterHandler is syntactic sugar for registering a handler

func RegisterSubscriber

func RegisterSubscriber(topic string, s server.Server, h interface{}, opts ...server.SubscriberOption) error

RegisterSubscriber is syntactic sugar for registering a subscriber

Types

type Context

type Context struct {
	context.Context

	App       *cli.App
	Broker    broker.Broker
	Client    client.Client
	Config    config.Config
	Trace     trace.Tracer
	Dialect   dao.Dialect
	Cache     cache.Cache
	Registry  registry.Registry
	Scheduler gscheduler.Scheduler
}

Context be used when vine service handling request

func InitContext added in v1.4.2

func InitContext(ctx context.Context) *Context

type Event

type Event interface {
	// Publish publishes a message to the event topic
	Publish(ctx context.Context, msg interface{}, opts ...client.PublishOption) error
}

Event is used to publish messages to topic

func NewEvent

func NewEvent(topic string, c client.Client) Event

NewEvent creates a new event publisher

type Option

type Option func(*Options)

func Action

func Action(a func(*cli.Context) error) Option

Action can be used to parse user provided cli options

func Address

func Address(addr string) Option

Address sets the address of the server

func AfterStart

func AfterStart(fn func() error) Option

AfterStart run functions after service starts

func AfterStop

func AfterStop(fn func() error) Option

AfterStop run functions after service stops

func BeforeStart

func BeforeStart(fn func() error) Option

BeforeStart run functions before service starts

func BeforeStop

func BeforeStop(fn func() error) Option

BeforeStop run functions before service stops

func Broker

func Broker(b broker.Broker) Option

Broker to be used for service

func Cache

func Cache(c cache.Cache) Option

Cache sets the cache to use

func Client

func Client(c client.Client) Option

Client to be used for service

func Cmd

func Cmd(c cmd.Cmd) Option

func Config

func Config(c config.Config) Option

Config sets the config for the service

func Dialect

func Dialect(d dao.Dialect) Option

Dialect sets the dialect to use

func Flags

func Flags(flags ...cli.Flag) Option

Flags that can be passed to service

func HandleSignal

func HandleSignal(b bool) Option

HandleSignal toggle automatic installation of the signal handler that traps TERM, INT, and QUIT. Users of this future to disable the signal handler, should control liveness of the service through the context

func Id

func Id(id string) Option

Id of the service

func Metadata

func Metadata(md map[string]string) Option

Metadata associated with the service

func Name

func Name(n string) Option

Name of the service

func PutContext added in v1.4.2

func PutContext(ctx context.Context) Option

PutContext specifies a context for the service. Can be used to signal shutdown of the service and for extra option values.

func RegisterInterval

func RegisterInterval(t time.Duration) Option

RegisterInterval specifies the interval on which to re-register

func RegisterTTL

func RegisterTTL(t time.Duration) Option

RegisterTTL specifies the TTL to use when registering the service

func Registry

func Registry(r registry.Registry) Option

Registry sets the registry for the service and the underlying components

func Selector

func Selector(s selector.Selector) Option

Selector sets the selector for the service client

func Server

func Server(s server.Server) Option

Server to be used for service

func Tracer

func Tracer(t trace.Tracer) Option

Tracer sets the tracer for the service

func Version

func Version(v string) Option

Version of the service

func WrapCall

func WrapCall(w ...client.CallWrapper) Option

WrapCall is a convenience method for wrapping a Client CallFunc

func WrapClient

func WrapClient(w ...client.Wrapper) Option

WrapClient is a convenience method for wrapping a Client with some middleware component. A list of wrappers can be provided. Wrappers are applied in reverse order so the last is executed first.

func WrapHandler

func WrapHandler(w ...server.HandlerWrapper) Option

WrapHandler adds a handler Wrapper to a list of options passed into the server

func WrapSubscriber

func WrapSubscriber(w ...server.SubscriberWrapper) Option

WrapSubscriber adds subscriber Wrapper to a list of options passed into the server

type Options

type Options struct {
	Broker    broker.Broker
	Cmd       cmd.Cmd
	Client    client.Client
	Config    config.Config
	Server    server.Server
	Trace     trace.Tracer
	Dialect   dao.Dialect
	Cache     cache.Cache
	Registry  registry.Registry
	Scheduler gscheduler.Scheduler

	// Before and After functions
	BeforeStart []func() error
	BeforeStop  []func() error
	AfterStart  []func() error
	AfterStop   []func() error

	// Other options for implementations of the interface
	// can be stored in a context
	Context context.Context

	Signal bool
}

Options for vine service

type Service

type Service interface {
	// Name The service name
	Name() string
	// Init initialises options
	Init(...Option)
	// Options returns the current options
	Options() Options
	// Server is for handling requests and events
	Server() server.Server
	// Client is used to call services
	Client() client.Client
	// Run the service
	Run() error
	// String The service implementation
	String() string
}

Service is an interface that wraps the lower level libraries within vine. It's a convenience method for building and initialising services.

func FromContext

func FromContext(ctx context.Context) (Service, bool)

FromContext retrieves a Service from the Context.

func NewService

func NewService(opts ...Option) Service

NewService creates and returns a new Service based on the packages within.

Directories

Path Synopsis
cmd
generator
The code generator for the plugin for the Google protocol buffer compiler.
The code generator for the plugin for the Google protocol buffer compiler.
generator/internal/remap
Package remap handles tracking the locations of Go tokens in a source text across a rewrite by the Go formatter.
Package remap handles tracking the locations of Go tokens in a source text across a rewrite by the Go formatter.
protoc-gen-cli
protoc-gen-cli is a plugin for the Google protocol buffer compiler to generate Go code.
protoc-gen-cli is a plugin for the Google protocol buffer compiler to generate Go code.
protoc-gen-dao
protoc-gen-dao is a plugin for the Google protocol buffer compiler to generate Go code.
protoc-gen-dao is a plugin for the Google protocol buffer compiler to generate Go code.
protoc-gen-deepcopy
protoc-gen-deepcopy is a plugin for the Google protocol buffer compiler to generate Go code.
protoc-gen-deepcopy is a plugin for the Google protocol buffer compiler to generate Go code.
protoc-gen-go
Package main define the proto-gen-go binary we use to generate out proto go file,
Package main define the proto-gen-go binary we use to generate out proto go file,
protoc-gen-gogo
Package main define the proto-gen-gogo binary we use to generate out proto go file,
Package main define the proto-gen-gogo binary we use to generate out proto go file,
protoc-gen-gogo/plugin
The marshalto plugin generates a Marshal and MarshalTo method for each message.
The marshalto plugin generates a Marshal and MarshalTo method for each message.
protoc-gen-validator
protoc-gen-validator is a plugin for the Google protocol buffer compiler to generate Go code.
protoc-gen-validator is a plugin for the Google protocol buffer compiler to generate Go code.
protoc-gen-vine
protoc-gen-vine is a plugin for the Google protocol buffer compiler to generate Go code.
protoc-gen-vine is a plugin for the Google protocol buffer compiler to generate Go code.
vine/app/api
Package api is an API Gateway
Package api is an API Gateway
vine/app/cli/mg
Package mg new generates vine service templates
Package mg new generates vine service templates
vine/app/cli/util
Package cliutil contains methods used across all cli commands @todo: get rid of os.Exits and use errors instread
Package cliutil contains methods used across all cli commands @todo: get rid of os.Exits and use errors instread
vine/client/resolver/api
Package api provides a vine rpc resolver which prefixes a namespace
Package api provides a vine rpc resolver which prefixes a namespace
vine/client/web
Package web is a web dashboard
Package web is a web dashboard
core
broker
Package broker is an interface used for asynchronous messaging
Package broker is an interface used for asynchronous messaging
broker/http
Package http provides a http based message broker
Package http provides a http based message broker
client/selector
Package selector is a way to pick a list of service nodes
Package selector is a way to pick a list of service nodes
client/selector/dns
Package dns provides a dns SRV selector
Package dns provides a dns SRV selector
client/selector/static
Package static provides a static resolver which returns the name/ip passed in without any change
Package static provides a static resolver which returns the name/ip passed in without any change
codec/bytes
Package bytes provides a bytes codec which does not encode or decode anything
Package bytes provides a bytes codec which does not encode or decode anything
codec/grpc
Package grpc provides a grpc codec
Package grpc provides a grpc codec
registry/mdns
Package mdns provides a multicast dns registry
Package mdns provides a multicast dns registry
registry/memory
Package memory provides an in-memory registry
Package memory provides an in-memory registry
lib
api
api/handler
Package handler provides http handlers
Package handler provides http handlers
api/handler/api
Package api provides an http-rpc handler which provides the entire http request over rpc
Package api provides an http-rpc handler which provides the entire http request over rpc
api/handler/event
Package event provides a handler which publishes an event
Package event provides a handler which publishes an event
api/handler/http
Package http is a http reverse proxy handler
Package http is a http reverse proxy handler
api/handler/rpc
Package rpc is a vine rpc handler.
Package rpc is a vine rpc handler.
api/handler/web
Package web contains the web handler including websocket support
Package web contains the web handler including websocket support
api/resolver
Package resolver resolves a http request to an endpoint
Package resolver resolves a http request to an endpoint
api/resolver/grpc
Package grpc resolves a grpc service like /greeter.Say/Hello to greeter service
Package grpc resolves a grpc service like /greeter.Say/Hello to greeter service
api/resolver/host
Package host resolves using http host
Package host resolves using http host
api/resolver/path
Package path resolves using http path
Package path resolves using http path
api/resolver/vpath
Package vpath resolves using http path and recognised versioned urls
Package vpath resolves using http path and recognised versioned urls
api/router
Package router provides api service routing
Package router provides api service routing
api/router/registry
Package registry provides a dynamic api service router
Package registry provides a dynamic api service router
api/server
Package server provides an API gateway server which handles inbound requests
Package server provides an API gateway server which handles inbound requests
api/server/http
Package http provides a http server with features; acme, cors, etc
Package http provides a http server with features; acme, cors, etc
cache
Package cache is an interface for distributed data cache.
Package cache is an interface for distributed data cache.
cache/memory
Package memory is a in-memory cache cache
Package memory is a in-memory cache cache
cmd
config/loader
Package loader manages loading from multiple sources
Package loader manages loading from multiple sources
config/secrets
Package secrets is an interface for encrypting and decrypting secrets
Package secrets is an interface for encrypting and decrypting secrets
config/secrets/box
Package box is an asymmetric implementation of config/secrets using nacl/box
Package box is an asymmetric implementation of config/secrets using nacl/box
config/secrets/secretbox
Package secretbox is a config/secrets implementation that uses nacl/secretbox to do symmetric encryption / verification
Package secretbox is a config/secrets implementation that uses nacl/secretbox to do symmetric encryption / verification
config/source/file
Package file is a file source.
Package file is a file source.
config/source/memory
Package memory is a memory source
Package memory is a memory source
dao
logger
Package logger provides a log interface
Package logger provides a log interface
logger/log
Package log provides debug logging
Package log provides debug logging
logger/log/memory
Package memory provides an in memory log buffer
Package memory provides an in memory log buffer
sync
Package sync is an interface for distributed synchronization
Package sync is an interface for distributed synchronization
sync/memory
Package memory provides a sync.Mutex implementation of the lock for local use
Package memory provides a sync.Mutex implementation of the lock for local use
trace
Package trace provides an interface for distributed tracing
Package trace provides an interface for distributed tracing
web
Package web provides web based vine services
Package web provides web based vine services
util
context/metadata
Package metadata is a way of defining message headers
Package metadata is a way of defining message headers
is
jsonpb
Package jsonpb provides marshaling and unmarshaling between protocol buffers and JSON.
Package jsonpb provides marshaling and unmarshaling between protocol buffers and JSON.
net
qson
Package qson implmenets decoding of URL query params into JSON and Go values (using JSON struct tags).
Package qson implmenets decoding of URL query params into JSON and Go values (using JSON struct tags).
ring
Package ring provides a simple ring buffer for storing local data
Package ring provides a simple ring buffer for storing local data
tls
version
Package version
Package version
yamlpb
Package yamlpb provides marshaling and unmarshaling between protocol buffers and YAML.
Package yamlpb provides marshaling and unmarshaling between protocol buffers and YAML.

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