Feat: add Dockerfile

server/Dockerfile

@@ -0,0 +1,26 @@
+FROM golang:1.19-alpine3.16 as builder
+
+ENV GOPROXY https://goproxy.cn
+WORKDIR /mayfly
+COPY go.mod go.mod
+COPY go.sum go.sum
+RUN go mod download
+
+# Copy the go source for building server
+COPY . .
+
+# Build
+RUN GO111MODULE=on CGO_ENABLED=0 GOOS=linux \
+    go build -a \
+    -o mayfly-go main.go
+
+FROM alpine:3.16
+
+RUN apk add --no-cache ca-certificates bash expat
+
+WORKDIR /mayfly
+
+COPY --from=builder /mayfly/config.yml /mayfly/config.yml
+COPY --from=builder /mayfly/mayfly-go /usr/local/bin/mayfly-go
+
+CMD ["mayfly-go"]