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English | <a href="README-CN.md">中文<a/>
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</p>
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Higress is a next-generation cloud-native gateway based on Alibaba's internal gateway practices.
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Powered by [Istio](https://github.com/istio/istio) and [Envoy](https://github.com/envoyproxy/envoy), Higress realizes the integration of the triple gateway architecture of traffic gateway, microservice gateway and security gateway, thereby greatly reducing the costs of deployment, operation and maintenance.
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Higress 是基于阿里内部两年多的 Envoy Gateway 实践沉淀，以开源 [Istio](https://github.com/istio/istio) 与 [Envoy](https://github.com/envoyproxy/envoy) 为核心构建的下一代云原生网关。Higress 实现了安全防护网关、流量网关、微服务网关三层网关合一，从而显著降低了网关的部署和运维成本。
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<BR><center><img src="https://img.alicdn.com/imgextra/i4/O1CN01dqXHDi27RhjAtZyNp_!!6000000007794-0-tps-1794-1446.jpg" alt="Higress Architecture"></center>
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## Summary
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- [**Use Cases**](#use-cases)
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- [**Higress Features**](#higress-features)
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- [**使用场景**](#使用场景)
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- [**核心优势**](#核心优势)
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- [**Quick Start**](#quick-start)
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## Use Cases
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## 使用场景
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- **Kubernetes ingress controller**:
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- **Kubernetes Ingress 网关**:
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Higress can function as a feature-rich ingress controller, which is compatible with many annotations of K8s' nginx ingress controller.
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Higress 可以作为 K8s 集群的 Ingress 入口网关, 并且兼容了大量 K8s Nginx Ingress 的注解，可以从 K8s Nginx Ingress 快速平滑迁移到 Higress。
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[Gateway API](https://gateway-api.sigs.k8s.io/) support is in progress and will support smooth migration from Ingress API to Gateway API.
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[Gateway API](https://gateway-api.sigs.k8s.io/) 标准的支持正在开发中，将会支持用户从 Ingress API 平滑迁移到 Gateway API。
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- **Microservice gateway**:
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- **微服务网关**:
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Higress can function as a microservice gateway, which can discovery microservices from various service registries, such as Nacos, ZooKeeper, Consul, etc.
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Higress 可以作为微服务网关, 能够对接多种类型的注册中心发现服务配置路由，例如 Nacos, ZooKeeper, Consul 等。
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It deeply integrates of [Dubbo](https://github.com/apache/dubbo), [Nacos](https://github.com/alibaba/nacos), [Sentinel](https://github.com/alibaba/Sentinel) and other microservice technology stacks.
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并且深度集成了 [Dubbo](https://github.com/apache/dubbo), [Nacos](https://github.com/alibaba/nacos), [Sentinel](https://github.com/alibaba/Sentinel) 等微服务技术栈，基于 Envoy C++ 网关内核的出色性能，相比传统 Java 类微服务网关，可以显著降低资源使用率，减少成本。
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- **Security gateway**:
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- **安全防护网关**:
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Higress can be used as a security gateway, supporting WAF and various authentication strategies, such as key-auth, hmac-auth, jwt-auth, basic-auth, oidc, etc.
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Higress 可以作为安全防护网关， 提供 WAF 的能力，并且支持多种认证鉴权策略，例如 key-auth, hmac-auth, jwt-auth, basic-auth, oidc 等。
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## Higress Features
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## 核心优势
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（TODO）
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- **兼容并蓄**
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兼容 Nginx Ingress Annotation 80%+ 的使用场景，且提供功能更丰富的注解，简单一步轻松搞定 Nginx Ingress迁移；
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支持 Nacos/Zookeeper 等多种注册中心，可以不依赖 K8s Service 进行服务发现，支持传统非容器架构业务平滑过渡到云原生架构
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- **生产等级**
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脱胎于历经阿里巴巴2年多生产验证的内部产品，支持每秒请求量达数十万级的大规模场景，具备企业级 SLA 的开源产品
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- **动态热更新**
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彻底摆脱 reload 引起的流量抖动，配置变更毫秒级生效且业务无感，Wasm 插件热更新且流量无损
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- **便于扩展**
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提供 Wasm、Lua、进程外三种插件扩展机制，让多语言编写插件不再成为障碍，插件生效粒度既支持全局级、域名级，也支持细粒度的路由级
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## Quick Start
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- [**Local Environment**](#local-environment)
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- [**Production Environment**](#production-environment)
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- [**本地环境**](#本地环境)
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- [**生产环境**](#生产环境)
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### Local Environment
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### 本地环境
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#### step 1. install kubectl & kind
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#### 第一步、 安装 kubectl & kind
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**On MacOS**
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**MacOS：**
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```bash
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curl -Lo ./kubectl https://storage.googleapis.com/kubernetes-release/release/$(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)/bin/darwin/amd64/kubectl
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# for Intel Macs
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@@ -65,7 +80,7 @@ chmod +x ./kind ./kubectl
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mv ./kind ./kubectl /some-dir-in-your-PATH/
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```
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**On Windows in PowerShell:**
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**Windows 中使用 PowerShell:**
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```bash
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curl.exe -Lo kubectl.exe https://storage.googleapis.com/kubernetes-release/release/$(curl.exe -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)/bin/windows/amd64/kubectl.exe
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curl.exe -Lo kind-windows-amd64.exe https://kind.sigs.k8s.io/dl/v0.17.0/kind-windows-amd64
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@@ -73,7 +88,7 @@ Move-Item .\kind-windows-amd64.exe c:\some-dir-in-your-PATH\kind.exe
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Move-Item .\kubectl.exe c:\some-dir-in-your-PATH\kubectl.exe
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```
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**On Linux:**
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**Linux:**
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```bash
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curl -Lo ./kubectl https://storage.googleapis.com/kubernetes-release/release/$(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)/bin/linux/amd64/kubectl
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curl -Lo ./kind https://kind.sigs.k8s.io/dl/v0.17.0/kind-linux-amd64
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sudo mv ./kind ./kubectl /usr/local/bin/kind
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```
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#### step 2. create kind cluster
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#### 第二步、 创建并启用 kind
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create a cluster config file: `cluster.conf`
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首先创建一个集群配置文件: `cluster.conf`
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```yaml
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# cluster.conf
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hostPort: 443
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protocol: TCP
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```
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Mac & Linux:
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Mac & Linux 系统执行:
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```bash
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kind create cluster --name higress --config=cluster.conf
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kubectl cluster-info --context higress
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```
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Windows:
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Windows 系统执行:
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```bash
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kind.exe create cluster --name higress --config=cluster.conf
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kubectl.exe cluster-info --context higress
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```
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#### step 3. install istio & higress
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#### 第三步、 安装 istio & higress
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```bash
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helm install istio -n istio-system oci://higress-registry.cn-hangzhou.cr.aliyuncs.com/charts/istio-local
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helm install higress -n higress-system oci://higress-registry.cn-hangzhou.cr.aliyuncs.com/charts/higress-local
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```
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#### step 4. create the ingress and test it!
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#### 第四步、 创建 Ingress 资源并测试
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```bash
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kubectl apply -f https://kind.sigs.k8s.io/examples/ingress/usage.yaml
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```
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Now verify that the ingress works
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测试 Ingress 生效：
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```bash
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# should output "foo"
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```
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### Production Environment
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### 生产环境
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#### step 1. install istio
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#### 第一步、 安装 istio
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select higress istio:
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可以选择安装 higress 发行的 istio 版本:
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```bash
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kubectl create ns istio-system
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helm install istio -n istio-system oci://higress-registry.cn-hangzhou.cr.aliyuncs.com/charts/istio
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```
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or select official istio (lose some abilities, such as using annotation to limit request rate):
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或者选择安装官方 istio 版本 (将失去部分能力，例如通过 Ingress 注解实现限流的功能):
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https://istio.io/latest/docs/setup/install
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#### step 2. install higress
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#### 第二步、 安装 higress
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```bash
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kubectl create ns higress-system
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helm install higress -n higress-system oci://higress-registry.cn-hangzhou.cr.aliyuncs.com/charts/higress
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```
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#### step 3. create the ingress and test it!
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#### 第三步、 创建 Ingress 资源并测试
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for example there is a service `test` in default namespace.
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假设在 default 命名空间下已经部署了一个 test service，服务端口为 80 ，则创建下面这个 K8s Ingress
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```yaml
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apiVersion: networking.k8s.io/v1
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@@ -182,6 +197,8 @@ spec:
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port:
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number: 80
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```
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测试能访问到该服务：
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```bash
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curl "$(k get svc -n higress-system higress-gateway -o jsonpath='{.status.loadBalancer.ingress[0].ip}')"/foo -H 'host: foo.bar.com'
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