add docker

Signed-off-by: Pakin <pakin.t@forth.co.th>

.dockerignore

@@ -0,0 +1,2 @@
+.env
+.git

Dockerfile

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+FROM golang:1.24-alpine as golang
+
+RUN apk add -U tzdata
+RUN apk --update add ca-certificates
+
+WORKDIR /app
+COPY . .
+
+RUN go mod download
+RUN go mod verify
+
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -o /server .
+
+FROM scratch
+
+COPY --from=golang /usr/share/zoneinfo /usr/share/zoneinfo
+COPY --from=golang /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
+COPY --from=golang /etc/passwd /etc/passwd
+COPY --from=golang /etc/group /etc/group
+
+COPY --from=golang /server .
+
+EXPOSE 8080
+EXPOSE 50051
+
+CMD ["/server"]