优化Dockerfile

ghproxy/Dockerfile

@@ -5,20 +5,17 @@ COPY go.mod go.sum ./
 RUN go mod download
 
 COPY . .
-RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o main .
+RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o ghproxy .
 
-FROM alpine:3.20
+FROM alpine
 
 WORKDIR /root/
 
 # 安装skopeo
-RUN apk add --no-cache skopeo
+RUN apk add --no-cache skopeo && mkdir -p temp && chmod 700 temp
 
-# 创建临时目录
-RUN mkdir -p ./temp && chmod 777 ./temp
-
-COPY --from=builder /app/main .
+COPY --from=builder /app/ghproxy .
 COPY --from=builder /app/config.json .
 COPY --from=builder /app/public ./public
 
-CMD ["./main"]
+CMD ["./ghproxy"]