Consul (service discovery)¶
Every container (with a port) is registred inside Consul with the Registrator service. This allows lookup of the IP adresses from containers by using following scheme:
containername-port.service.consul
With Consul you can eg. connect to a MySQL database with a GUI Tool using an SSH tunnel and this address syntax without exposing ports to the VM.
DNS lookup examples¶
| Container name | Port | DNS name |
|---|---|---|
| consul | 8500 | consul-8500.service.consul |
| consul | 8600 | consul-8600.service.consul |
| dory-http-proxy | 443 | dory-http-proxy-443.service.consul |
| typo3dockerboilerplate_app_1 | 80 | no supported (underscores not allowed in domain names) |
| typo3dockerboilerplate_mysql_1 | 3306 | no supported (underscores not allowed in domain names) |
Note: docker-compose containers are currently not supported, see https://github.com/docker/compose/issues/229