✨ add Dockerfile

Dockerfile

@@ -0,0 +1,20 @@
+FROM golang:alpine AS builder
+
+WORKDIR /root
+
+RUN sed -i 's/dl-cdn.alpinelinux.org/mirrors.aliyun.com/g' /etc/apk/repositories && apk update && apk add git gcc g++\
+    && git clone https://github.com/rainerosion/E5SubBot.git \
+    && cd E5SubBot &&  GOPROXY=https://goproxy.cn,direct CGO_ENABLED=1 go build
+
+FROM alpine:latest
+
+ENV TIME_ZONE=Asia/Shanghai
+
+RUN sed -i 's/dl-cdn.alpinelinux.org/mirrors.aliyun.com/g' /etc/apk/repositories && apk update && apk add tzdata \
+    && ln -snf /usr/share/zoneinfo/$TIME_ZONE /etc/localtime && echo $TIME_ZONE > /etc/timezone
+
+WORKDIR /root
+
+COPY --from=builder /root/E5SubBot/main /root
+
+CMD [ "/root/main" ]