Added a Dockerfile.

Author: rudimk

Diff for: Dockerfile

@@ -0,0 +1,25 @@
+# syntax=docker/dockerfile:1.1.7-experimental
+
+# Environment to build manager binary
+FROM golang:1.15.6-alpine3.12 as build
+WORKDIR /gin
+
+RUN apk update && apk add gcc musl-dev
+
+COPY . .
+
+RUN go mod download
+
+RUN go build -ldflags '-w -s' -a -o ./bin/porter-gin-example .
+
+# Deployment environment
+# ----------------------
+FROM alpine:3.12
+WORKDIR /gin
+
+RUN apk update && apk add git curl
+
+COPY --from=build /gin/bin/porter-gin-example /usr/bin/
+
+ENTRYPOINT [ "porter-gin-example" ]
+