Docker (#2867)

* Dockerize Misskey

* Add a new line at EOF

* Add support Elasticsearch

* /

* Add setup document for docker

* Add english document

* Edit docs

* docker -> Docker

* Arrange format

* Update docker.en.md

* Modify title

Dockerfile

@@ -0,0 +1,28 @@
+FROM alpine:latest AS base
+
+ENV NODE_ENV=production
+
+RUN apk add --no-cache nodejs nodejs-npm
+RUN apk add vips fftw --update-cache --repository https://dl-3.alpinelinux.org/alpine/edge/testing/
+WORKDIR /misskey
+COPY . ./
+
+FROM base AS builder
+
+RUN apk add --no-cache	gcc g++ python autoconf automake file make nasm
+RUN apk add vips-dev fftw-dev --update-cache --repository https://dl-3.alpinelinux.org/alpine/edge/testing/
+RUN npm install \
+    && npm install -g node-gyp \
+    && node-gyp configure \
+    && node-gyp build \
+    && npm run build
+
+FROM base AS runner
+
+COPY --from=builder /misskey/built ./built
+COPY --from=builder /misskey/node_modules ./node_modules
+
+RUN apk add --no-cache tini
+ENTRYPOINT ["/sbin/tini", "--"]
+
+CMD ["npm", "start"]