adjust for amd64 docker

Makefile

@@ -2,4 +2,8 @@ all: build-linux-arm64
 
 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 niupic.bin main.go
+	CGO_ENABLED=0 GOOS=linux GOARCH=arm64 GO111MODULE=on  go build -v -a -o niupic.bin main.go
+
+build-linux-amd64:
+	CGO_ENABLED=0 GOOS=linux GOARCH=amd64 GO111MODULE=on  GOPROXY="https://goproxy.cn,direct" go mod tidy
+	CGO_ENABLED=0 GOOS=linux GOARCH=amd64 GO111MODULE=on  GOPROXY="https://goproxy.cn,direct" go build -v -a -o niupic.bin main.go

readme.md

@@ -9,6 +9,19 @@ docker build -t sre/niupicupload:arm64 .
 kubectl -n sre rollout restart deployment niupicupload
 ```
 
+## build amd64 on tx
+```bash
+cd /root
+rm -rf niupicUpload
+git clone https://git.sre.ink/go/niupicUpload.git
+cd niupicUpload
+make build-linux-amd64
+docker build -t sre/niupicupload:amd64 .
+docker run --name niupicupload --restart always  --p 127.0.0.1:8081:8080 -d sre/niupicupload:amd64
+```
+
+
+
 ## usage
 ```bash
 http://127.0.0.1:8080/upload.html