privoxy

.drone.yml

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+kind: pipeline
+type: ssh # 使用SSH
+name: go-privoxy
+
+server:
+  host:
+    from_secret: ssh_host
+  user:
+    from_secret: ssh_user
+  password:
+    from_secret: ssh_password
+
+clone:
+  disable: true
+
+steps:
+  - name: build
+    commands:
+      - echo build start
+      - date
+      - export PATH=$PATH:/usr/local/go/bin
+      - cd /root
+      - rm -rf goPrivoxy
+      - git clone https://git.sre.ink/go/goPrivoxy.git
+      - cd goPrivoxy
+      - make build-linux-arm64
+      - date
+      - echo build end
+  - name: package
+    commands:
+      - echo package start
+      - date
+      - cd /root/goPrivoxy
+      - docker build -t sre/goprivoxy:arm64 .
+      - date
+      - echo package end
+  - name: deploy
+    commands:
+      - echo deploy start
+      - date
+      - export KUBECONFIG=/etc/kubernetes/admin.conf
+      - kubectl -n sre rollout restart deployment go-privoxy
+      - date
+      - echo deploy end
+  - name: alert
+    commands:
+      - echo alert start
+      - date
+      - echo deploy ok
+      - date
+      - echo alert end

.gitignore

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+.idea
+go.sum
+main.exe
+eth.exe
+monitor.exe
+log.txt
+logs
+*.log
+uploads
+gin.log

Makefile

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+all: build-linux-arm64 build-linux-amd64
+
+build-linux-arm64:
+	CGO_ENABLED=0 GOOS=linux GOARCH=arm64 GO111MODULE=on  go mod tidy
+	CGO_ENABLED=0 GOOS=linux GOARCH=arm64 GO111MODULE=on  go build -v -a -o privoxy.bin main.go
+
+build-linux-amd64:
+	CGO_ENABLED=0 GOOS=linux GOARCH=amd64 GO111MODULE=on  go mod tidy
+	CGO_ENABLED=0 GOOS=linux GOARCH=amd64 GO111MODULE=on  go build -v -a -o privoxy.bin main.go
+	docker build -t sre/goprivoxy:arm64 .
+	docker rm -f goprivoxy
+	docker run --name goprivoxy --restart always  --net=host -d sre/goprivoxy:arm64
+	docker logs -f goprivoxy

go.mod

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+module goPrivoxy
+
+go 1.19

main.go

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+package main
+
+import (
+	"io"
+	"log"
+	"net"
+	"net/http"
+	"strings"
+)
+
+/*
+*
+@author: sre
+@date: 2022/8/21 0021
+@desc: todo
+*
+*/
+
+type goPrivoxy struct {
+}
+
+func (p *goPrivoxy) ServeHTTP(w http.ResponseWriter, req *http.Request) {
+	log.Printf("接受请求 %s %s %s\n", req.Method, req.Host, req.RemoteAddr)
+
+	transport := http.DefaultTransport
+
+	// 第一步： 代理接受到客户端的请求，复制原来的请求对象，并根据数据配置新请求的各种参数(添加上X-Forward-For头部等)
+	outReq := new(http.Request)
+	*outReq = *req // 这只是一个浅层拷贝
+
+	clientIP, _, err := net.SplitHostPort(req.RemoteAddr)
+	if err == nil {
+		prior, ok := outReq.Header["X-Forwarded-For"]
+		if ok {
+			clientIP = strings.Join(prior, ", ") + ", " + clientIP
+		}
+		outReq.Header.Set("X-Forwarded-For", clientIP)
+	}
+
+	// 第二步： 把新请求复制到服务器端，并接收到服务器端返回的响应
+	res, err := transport.RoundTrip(outReq)
+	if err != nil {
+		w.WriteHeader(http.StatusBadGateway) // 502
+		return
+	}
+
+	// 第三步：代理服务器对响应做一些处理，然后返回给客户端
+	for key, value := range res.Header {
+		for _, v := range value {
+			w.Header().Add(key, v)
+		}
+	}
+
+	w.WriteHeader(res.StatusCode)
+	io.Copy(w, res.Body)
+	res.Body.Close()
+}
+
+func main() {
+	log.Println("goPrivoxy start at 0.0.0.0:8118")
+	http.Handle("/", &goPrivoxy{})
+	http.ListenAndServe("0.0.0.0:8118", nil)
+}

readme.md

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+https://github.com/fenggolang/go-proxy
+
+## build arm64 on oracle k8s
+```bash
+cd /root
+rm -rf goPrivoxy
+git clone https://git.sre.ink/go/goPrivoxy.git
+cd goPrivoxy
+make build-linux-arm64
+docker build -t sre/goprivoxy:arm64 .
+kubectl -n sre rollout restart deployment go-privoxy
+```
+
+## build amd64 on vm
+```bash
+cd /root
+rm -rf goPrivoxy
+git clone https://git.sre.ink/go/goPrivoxy.git
+cd goPrivoxy
+make build-linux-amd64
+```