Consul & Registrator & Rails Service All together in separate Docker container

1.Start a container running Consul:

Here we use this image:https://hub.docker.com/r/progrium/consul/

$ docker run-it-h node-p 8500:8500-p 53:53/udp progrium/consul-server-bootstrap-advertise $DOCKER _ip

How to check this Consul is running:

METHOD1:

In Docker-machine, run

$ docker PS

would see running Consul container:

We can also check the logs:

$ docker Logs $CONTAINER _id

METHOD2:

Browse to $DOCKER _ip:8500 There was a dashboard to see the services that was registered in Consul:

2.Start a container running Registrator

Here we use this image:https://hub.docker.com/r/gliderlabs/registrator/

Registrator automatically registers and deregisters services for all Docker container by inspecting containers as they com E online.

Registrator Watches for new Docker containers and inspects them to determine what services they provide. For we purposes, a service is anything listening on a port. Any services Registrator finds on a container, they would be added to a service registry, such as Consul or ETCD.

$ docker run-it-v/var/run/docker.sock:/tmp/docker.sock-h $DOCKER _ip gliderlabs/registrator consul://$DOCKER _ip:8500

How to check this registrator is running?

In Docker-machine, run

$ docker PS

would see running Registrator container:

We can also check the logs:

$ docker Logs $CONTAINER _id

3. Start a Web service and let Registrator automatically register it on Consul

In command line, into a directory of that have proper rails app, Dockerfile and Docker-compose.yml file in place.

$ docker-compose Build
$ docker-compose Run Web bundle exec rake sample_data:populate
$ docker-compose run-p 3000-e ' service_name=romui-web ' web rails s

How to check the This service is registered?

METHOD1:

Use Consul API:

$ Curl $DOCKER _ip/v1/catalog/services

We can check the service details using Consul HTTP API:

$ Curl http://localhost:8500/v1/catalog/service/$SERVICE _name

METHOD2:

Check in Consul UI:

4. Find the IP address and port of the service from Consul UI, and start using the service.

Now we is ready for access the service from browser:

Consul & Registrator & Rails Service All together in separate Docker container