adding docker support

Dockerfile

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+FROM node:16-alpine
+
+EXPOSE 8080
+
+COPY docker-init.sh /
+
+ENTRYPOINT [ "sh", "/docker-init.sh" ]
+

docker-compose.yml

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+version: "2"
+services:
+  apple2js:
+    container_name: "apple2js"
+    build: .
+    restart: always
+    volumes:
+      - ./:/home/node/app
+    ports:
+      - '8080:8080'
+

docker-init.sh

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+#!/bin/sh
+
+echo "Preparing..."
+cd /home/node/app
+chown -R node:node .
+
+echo "Building..."
+npm install
+
+echo "Starting server..."
+npm start
+