Stop requiring the charm to ship with a boiler plate overlay for
setting a relative path for local charm location. Instead render the
overlay from a string var. As part of this some of the template
rendering code was refactored.
This change adds support for model specific overlays from
templates which are rendered at deploy time.
The overlay template directory will be searched for a corresponding
template (<bundle_name>.j2). If one is found then the overlay will
be rendered using environment variables matching AMULET* or
ZAZA_TEMPLATE* as a context. The rendered overlay will be used on
top of the specified bundle at deploy time.
A default overlay is always applied "local-charm-overlay.yaml". This
overlay is only used to move the location of the charm being deployed
to a relative path so the bundle can use "charm: <charm name>" rather
than "charm: ../../../<charm name>"
Add --smoke switch to functest-run-suite to allow just the smoke
tests for a charm to be run. This requires that the smoke test
bundles are listed in the charms tests/tests.yaml
