Add multi-stage dockerfile as node:alpine image

.dockerignore

@@ -0,0 +1,6 @@
+.git
+.vscode
+build
+.env*
+dist
+node_modules

CHANGELOG.md

@@ -13,6 +13,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Scripts added: `start:dev` for integrated watcher, `start:prod` for running server as production
 - Formatting and linting scripts
 - Template file converter, and bash template for serving
+- Multi-stage dockerfile
 
 ### Changed
 

Dockerfile

@@ -0,0 +1,36 @@
+# Stage 1. Base
+FROM node:carbon AS base
+WORKDIR /app
+
+# Stage 2. Dependencies
+FROM base AS dependencies
+COPY package*.json ./
+RUN npm install
+
+# Stage 3. TS compilation
+FROM dependencies AS build
+COPY src /app/src
+COPY tsconfig.json /app
+RUN npm run tsc
+
+# Stage 4. Release Image
+FROM node:alpine AS release
+WORKDIR /app
+
+COPY --from=dependencies /app/package.json ./
+RUN npm install --only=production
+COPY --from=build /app/build ./build
+COPY public ./public
+
+ENV NODE_ENV=production \
+    PORT=8080 \
+    BIND_ADDRESS=0.0.0.0 \
+    UPLOAD_LIMIT=134217700 \
+    LOG_LEVEL=info \
+    HOST_DIR=/data
+
+RUN mkdir -p ${HOST_DIR}
+VOLUME [ ${HOST_DIR} ]
+EXPOSE ${PORT}
+
+CMD [ "node", "./build/index.js" ]