setup and run the dockerized virtual hosting demo

Dockerfile

# Builds the goodbye world nodejs app
FROM google/nodejs-runtime

run.sh

#!/bin/bash
# https://speakerdeck.com/hmalphettes/simple-virtual-hosts-for-docker-containers
docker ps -a --no-trunc | grep 'Exit' | awk '{print $1}' | xargs -r docker rm;

# Run the load balancer if it is not running already
docker ps | grep -w loadbalancer;
if [ ! "$?" -eq "0" ]; then
  docker run \
    --name loadbalancer \
    --detach \
    --restart=always \
    -p "80:80" \
    -v /var/run/docker.sock:/tmp/docker.sock \
    jwilder/nginx-proxy
fi

# Run the dynamic DNS
docker ps | grep -w route53;
if [ ! "$?" -eq "0" ]; then
echo "Start route53"
  source $HOME/docker-scripts/secrets
PUBLIC_IP=$(ip -o addr show | grep docker0 | grep inet\  | awk '/inet/ {print $4}' | cut -d'/' -f1)
  docker run --name route53 \
     --detach=true \
     --restart=on-failure:5 \
     -v /var/run/docker.sock:/tmp/docker.sock \
        -e AWS_ACCESS_KEY_ID=$AWS_ACCESS_KEY_ID \
        -e AWS_SECRET_ACCESS_KEY=$AWS_SECRET_ACCESS_KEY \
        -e PUBLIC_IP=$PUBLIC_IP \
        hmalphettes/docker-route53-dyndns

fi

# Run hello if it is not running already
docker ps | grep -w hello;
if [ ! "$?" -eq "0" ]; then
echo "Starting hello"
  docker run \
    --name hello \
    --detach \
    --restart=always \
    -p "8080:8080" \
    -e VIRTUAL_HOST=hello.stoic.cc \
    google/nodejs-hello
fi

docker ps | grep -w goodbye;
if [ ! "$?" -eq "0" ]; then
echo "Starting goodbye"
  docker run \
    --name goodbye \
    --detach \
    --restart=always \
    -p "8081:8080" \
    -e VIRTUAL_HOST=goodbye.stoic.cc \
    hugues/nodejs-goodbye
fi

secrets

# AWS credentials
AWS_ACCESS_KEY_ID=NOT_AN_ACCESS_KEY
AWS_SECRET_ACCESS_KEY=NOT_THE_REAL_SECRETE_ACCESS_KEY

server.js

var express = require('express');
var app = express();

app.get('/', function(req, res) {
  res.send('Goodbye World');
});

var server = app.listen(8080, function() {
    console.log('Listening on port %d', server.address().port);
});

Demo material for https://speakerdeck.com/hmalphettes/simple-virtual-hosts-for-docker-containers