chore(docker): add dockerfile

add dockerfile

Signed-off-by: mritd <mritd@linux.com>

Dockerfile

@@ -0,0 +1,44 @@
+FROM node:lts-alpine3.12 AS fe-builder
+
+COPY ./assets /assets
+
+WORKDIR /assets
+
+RUN set -ex \
+    && apk upgrade \
+    && npm install -g yarn \
+    && yarn install \
+    && yarn run build
+
+FROM golang:1.15.0-alpine3.12 AS be-builder
+
+ENV GO111MODULE on
+ENV GOPROXY https://goproxy.cn
+
+COPY . /go/src/github.com/HFO4/cloudreve
+COPY --from=fe-builder /assets/build/ /go/src/github.com/HFO4/cloudreve/assets/build/
+
+WORKDIR /go/src/github.com/HFO4/cloudreve
+
+RUN set -ex \
+    && apk upgrade \
+    && apk add git \
+    && export COMMIT_SHA=$(git rev-parse --short HEAD) \
+    && export VERSION=$(git describe --tags) \
+    && (cd && go get github.com/rakyll/statik) \
+    && statik -src=assets/build/ -include=*.html,*.js,*.json,*.css,*.png,*.svg,*.ico -f \
+    && go install -ldflags "-X 'github.com/HFO4/cloudreve/pkg/conf.BackendVersion=${VERSION}'
+                            -X 'github.com/HFO4/cloudreve/pkg/conf.LastCommit=${COMMIT_SHA}'\
+                            -w -s"
+
+FROM alpine:3.12 AS dist
+
+LABEL maintainer="mritd <mritd@linux.com>"
+
+RUN apk upgrade \
+    && apk add tzdata \
+    && rm -rf /var/cache/apk/*
+
+COPY --from=be-builder /go/bin/cloudreve /usr/bin/cloudreve
+
+ENTRYPOINT ["cloudreve"]