Merge pull request #464 from nacos-group/develop

Fix Dockerfile style issue

operator/Dockerfile

@@ -1,7 +1,7 @@
 # Build the manager binary
 
 FROM golang:1.16 AS builder
-ARG TARGETARCH
+
 
 WORKDIR /workspace
 # Copy the Go Modules manifests
@@ -20,7 +20,7 @@ COPY pkg/ pkg/
 ADD https://raw.githubusercontent.com/alibaba/nacos/develop/distribution/conf/mysql-schema.sql config/sql/nacos-mysql.sql
 
 # Build
-RUN CGO_ENABLED=0 GOOS=linux GOARCH=${TARGETARCH} GO111MODULE=on go build  -a -v -o manager main.go
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 GO111MODULE=on go build  -a -v -o manager main.go
 
 # Use distroless as minimal base image to package the manager binary
 # Refer to https://github.com/GoogleContainerTools/distroless for more details