Close a service network port

Compare supplied revno with the revno of the installed package * 1 => Installed revno is greater than supplied arg * 0 => Installed revno i

Configure multiple sources from charm configuration. The lists are encoded as yaml fragments in the configuration. The frament needs to

Create or overwrite a file with the contents of another file

Execute a registered hook based on args[0]

A convenient bundling of the current execution context

Decorator, registering them as hooks

The name of the currently executing hook

Determine whether we're running in a relation hook

Determine whether a relation is established by checking for presence of key(s). If a list of keys is provided, they must all be present

Serialize the object to json

Return a list of nics of given type(s)

Mount a filesystem at a particular mountpoint

Get a list of all mounted volumes as [[mountpoint,device],[...]]

Open a service network port

Return data to be relation_set for this interface.

Generate a random pasword.

Set relation information for the current unit

Get relations of a specific type

Render a template. The `source` path, if not absolute, is relative to the `templates_dir`. The `target` path should be absolute. T

Restart services based on configuration files changing This function is used a decorator, for example:: @restart_on_change({

Replicate the contents of a path

Save this config to disk. Preserves items in _prev_dict that do not exist in self.

Determine whether a system service is available

The name service group this unit belongs to

Reload a system service, optionally falling back to restart if reload fails

Restart a system service

Wrapper around host.service_restart to prevent spurious "unknown service" messages in the logs.

Determine whether a system service is running

Start a system service

Stop a system service

Wrapper around host.service_stop to prevent spurious "unknown service" messages in the logs.

Set MTU on a network interface

Create a symbolic link

Unmount a filesystem

Get this unit's private IP address

Create or overwrite a file with the contents of a string

Serialize the object to yaml