Steps to launch a consul server deamon

consul-steps.txt

1. run
`docker run -it -h node \
 -p 8500:8500 \
 -p 53:53/udp \
 progrium/consul \
 -server \
 -bootstrap \
 -advertise $DOCKER_IP`
 
 2. run registrator
 `docker run -it -d \
-v /var/run/docker.sock:/tmp/docker.sock \
-h $DOCKER_IP gliderlabs/registrator \
consul://$DOCKER_IP:8500`

====If you want LB====
3. Go in app directory and do this:
`docker build -t python/server .`

4. Run 2 "app" instances
`docker run -it -d \
-e "SERVICE_NAME=app" \
-p 8000:8000 python/server
`

`docker run -it -d \
-e "SERVICE_NAME=app" \
-p 8001:8000 python/server
`

5. Run nginx lb image
`docker run -p 80:80 -d --name nginx --net host --volume $PWD/templates:/templates 
-e CONSUL_URL:$DOCKER_IP stakater/nginx-with-consul-template:latest`

6. Now try reaching `$DOCKER_IP` using
`curl http://$DOCKER_IP` and see the response

=====if using as service discovery=======
Sidenote: You can shut down nginx image in step 5 and python apps in step 4 here (optional)

7. Create a simple webapp (see https://github.com/codeasashu/consul-webapp-demo)
8. start webapp using `docker-compose up -d` and see the magic

Dockerfile

FROM  python:3  
EXPOSE  8000
CMD ["python", "-m", "http.server"]

service.ctmpl

upstream app {                 
  least_conn;                            
  {{range service "app"}}
		server  {{.Address}}:{{.Port}};        
  {{else}}server 127.0.0.1:65535;{{end}} 
}                                        
server {                                 
  listen 80 default_server;              
  location / {                           
    proxy_pass http://app;               
  }                                      
}