add laravel echo server

laravel-echo-server/Dockerfile

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+FROM node:argon
+ 
+# Create app directory
+RUN mkdir -p /usr/src/app
+WORKDIR /usr/src/app
+ 
+# Install app dependencies
+COPY package.json /usr/src/app/
+RUN npm install
+ 
+# Bundle app source
+COPY laravel-echo-server.json /usr/src/app/laravel-echo-server.json
+ 
+EXPOSE 3000
+CMD [ "npm", "start" ]

laravel-echo-server/laravel-echo-server.json

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+{
+	"authHost": "localhost",
+	"authEndpoint": "/broadcasting/auth",
+	"clients": [],
+	"database": "redis",
+	"databaseConfig": {
+		"redis": {
+			"port": "6379",
+			"host": "redis"
+		}
+	},
+	"devMode": true,
+	"host": null,
+	"port": "6001",
+	"protocol": "http",
+	"socketio": {},
+	"sslCertPath": "",
+	"sslKeyPath": ""
+}

laravel-echo-server/package.json

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+{
+  "name": "laravel-echo-server-docker",
+  "description": "Docker container for running laravel-echo-server",
+  "version": "0.0.1",
+  "license": "MIT",
+  "dependencies": {
+    "laravel-echo-server": "^1.2.8"
+  },
+  "scripts": {
+    "start": "laravel-echo-server start"
+  }
+}