Add Dockerfile

.dockerignore

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+happydns
+bindata.go
+vendor/
+happydns.db/
+htdocs/node_modules/

Dockerfile

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+FROM node:alpine as nodebuild
+
+WORKDIR /go/src/git.happydns.org/happydns
+
+RUN apk --no-cache add python2 build-base
+
+COPY htdocs/ htdocs/
+
+RUN yarn --cwd htdocs install
+RUN yarn --cwd htdocs --offline build
+
+
+FROM golang:alpine as gobuild
+
+RUN apk add --no-cache go-bindata
+
+WORKDIR /go/src/git.happydns.org/happydns
+
+COPY --from=nodebuild /go/src/git.happydns.org/happydns/ ./
+COPY admin ./admin
+COPY api ./api
+COPY config ./config
+COPY forms ./forms
+COPY generators ./generators
+COPY model ./model
+COPY services ./services
+COPY sources ./sources
+COPY storage ./storage
+COPY utils ./utils
+COPY generate.go go.mod go.sum main.go static.go ./
+
+RUN sed -i '/yarn --cwd htdocs --offline build/d' static.go && \
+    go get -d -v && \
+    go generate -v && \
+    go build -v
+
+
+FROM alpine
+
+EXPOSE 8081
+
+CMD ["happydns"]
+
+ENV HAPPYDNS_LEVELDB_PATH=/data/happydns.db
+
+VOLUME /data
+
+COPY --from=gobuild /go/src/git.happydns.org/happydns/happydns /usr/sbin/happydns