Added docker support for ARM platform

Dockerfile.arm

@@ -0,0 +1,34 @@
+FROM node:14-alpine
+
+WORKDIR /app
+
+COPY package*.json ./
+
+RUN apk --no-cache --virtual build-dependencies add python make g++ \
+    && npm install
+    
+
+COPY . .
+
+RUN mkdir -p ./public ./data
+
+# Build server code
+RUN npm run build
+
+# Build client code
+RUN cd ./client \
+    && npm install --production \
+    && npm run build \
+    && cd .. \
+    && mv ./client/build/* ./public
+
+# Clean up src files
+RUN rm -rf src/ ./client \
+    && npm prune --production \
+    && apk del build-dependencies
+
+EXPOSE 5000
+
+ENV NODE_ENV=production
+
+CMD ["node", "build/server.js"]

README.md

@@ -40,13 +40,21 @@ npm run dev
 #### Building image
 
 ```sh
+# Building image for Linux
 docker build -t snippet-box .
+
+# Build image for ARM
+docker buildx build \
+  --platform linux/arm/v7,linux/arm64 \
+  -f Dockerfile.arm \
+  -t snippet-box:arm
 ```
 
 #### Deployment
 
 ```sh
 # run container
+# for ARM use snippet-box:arm tag
 docker run -p 5000:5000 -v /path/to/data:/app/data snippet-box
 ```