Create Dockerfile

Dockerfile

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+FROM golang:1.22 AS builder
+
+ENV CGO_ENABLED=0
+
+WORKDIR /app
+
+COPY go.mod go.sum ./
+RUN go mod download
+
+COPY . .
+RUN CGO_ENABLED=0 GOARCH=amd64 go build -o ddg .
+
+FROM alpine:latest
+
+WORKDIR /app
+
+COPY --from=builder /app/ddg  .
+
+ENV MAX_RETRY_COUNT="3"
+ENV RETRY_DELAY="5000"
+ENV PORT="7860"
+
+EXPOSE 7860
+
+RUN chmod +x ddg
+
+CMD ["./ddg"]