Helper for rendering Jinja2 templates with charms
from charms.templating.jinja2 import render
render('app.conf.j2', '/etc/app.conf', {
'my_var': 'my_val',
})
output = render(
'tmpl.j2',
tests={
'isnumeric': lambda s: s.isnumeric(),
})
output = render(
template='{{ config["my-opt"]|my_upper }}',
filters={
'my_upper': lambda s: s.upper(),
})
The full documentation is available at http://pythonhosted.org/charms.templating.jinja2/