By design, Juju operates a very secure environment for deploying your services. Even if you have deployed services, they won't be publically available unless you explicitly make them so. To allow public access to services, the appropriate changes must be made to the cloud provider firewall settings. As the procedure or doing this varies depending on the provider, Juju helpfully abtracts this into a single command,
juju expose <servicename>
For example, you may have deployed a WordPress service using the relevant charm. Once deployed, the service still cannot be accessed by the public, so you would run:
juju expose wordpress
Juju will then take the steps necessary to adjust firewall rules and any other settings to expose the service via its given address. This process may take anything from a few moments to several minutes. You can check on the current status of your services by running:
This will return a status report like this:
machines: "0": agent-state: started agent-version: 1.12.0 dns-name: 126.96.36.199 instance-id: "1736045" series: precise "1": agent-state: started agent-version: 1.12.0 dns-name: 188.8.131.52 instance-id: "1736065" series: precise services: wordpress: charm: cs:precise/wordpress-42 exposed: true units: wordpress/0: agent-state: started agent-version: 1.12.0 machine: "1" open-ports: - 80/tcp public-address: 184.108.40.206
As you can see here, the
exposed: status is listed as true, and the service is running and available to users.
Note: Exposing the service does not change any DNS or other settings which may be neccessary to get your service running as you expect.
Unexposing a service
To return the firewall settings and make a service non-public again, you simply need to run the
unexpose command. For example:
juju unexpose wordpress