load balancer example
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version: '3'
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services:
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myreverse:
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image: bunkerity/bunkerized-nginx
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restart: always
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ports:
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- 80:80
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- 443:443
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volumes:
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- ./letsencrypt:/etc/letsencrypt
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- ./http-confs:/http-confs
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- ./server-confs:/server-confs
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environment:
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- SERVER_NAME=www.website.com # replace with your domain
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- SERVE_FILES=no
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- DISABLE_DEFAULT_SERVER=yes
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- REDIRECT_HTTP_TO_HTTPS=yes
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- AUTO_LETS_ENCRYPT=yes
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app1:
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build: js-app
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restart: always
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environment:
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- NODE_ENV=production
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app2:
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build: js-app
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restart: always
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environment:
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- NODE_ENV=production
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app3:
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build: js-app
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restart: always
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environment:
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- NODE_ENV=production
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upstream app {
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server app1:3000;
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server app2:3000;
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server app3:3000;
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}
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FROM node
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COPY app/ /home/node/app
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RUN cd /home/node/app && npm install && chown -R root:node /home/node/app && chmod -R 770 /home/node/app
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WORKDIR /home/node/app
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USER node
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CMD ["node", "index.js"]
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const express = require('express')
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const app = express()
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const port = 3000
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var os = require("os");
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app.get('/', (req, res) => {
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res.send('Container id = ' + os.hostname())
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})
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app.listen(port, () => {
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console.log(`Example app listening at http://localhost:${port}`)
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})
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{
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"name": "js-app",
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"version": "1.0.0",
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"description": "demo",
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"main": "index.js",
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"scripts": {
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"test": "echo \"Error: no test specified\" && exit 1"
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},
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"author": "",
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"license": "ISC",
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"dependencies": {
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"express": "^4.17.1"
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}
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}
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proxy_set_header Host $host;
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proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
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location / {
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proxy_pass http://app$request_uri;
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}
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