add dockerfile

.dockerignore

@@ -0,0 +1,4 @@
+.git
+config.y*ml
+go.work*
+docker-compose-sample*

Dockerfile

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+FROM golang:1-alpine AS build
+WORKDIR /app
+
+ENV GO111MODULE=auto CGO_ENABLED=0 GOOS=linux
+
+ARG GOPROXY
+ARG GONOSUMDB=gitea.libretechconsulting.com
+ARG VER_PKG=gitea.libretechconsulting.com/rmcguire/go-app/pkg/config.Version
+ARG VERSION=(devel)
+ARG APP_NAME=demo-app
+
+COPY ./go.mod ./go.sum ./
+RUN go mod download
+
+COPY ./ /app
+RUN go build -C . -v -ldflags "-extldflags '-static' -X ${VER_PKG}=${VERSION}" -o ${APP_NAME} .
+
+FROM alpine:latest
+
+ARG APP_NAME=demo-app
+
+WORKDIR /app
+USER 100:101
+
+COPY --from=build --chown=100:101 /app/${APP_NAME} /app/
+
+ENTRYPOINT [ "/app/${APP_NAME}" ]