CharmHub and new kafka and zookeeper charms

- Charmed installer uses bundles published in CharmHub
- Use new zookeeper and kafka sidecar-charm
- Changes in the charms to integrate with the new Kafka

Change-Id: Ie59fe1c7c72774b317abe2433fafb28a11472b72
Signed-off-by: David Garcia <david.garcia@canonical.com>
diff --git a/installers/charm/mon/tox.ini b/installers/charm/mon/tox.ini
index 8e3318a..f3c9144 100644
--- a/installers/charm/mon/tox.ini
+++ b/installers/charm/mon/tox.ini
@@ -29,8 +29,10 @@
 
 [testenv]
 basepython = python3.8
-setenv = VIRTUAL_ENV={envdir}
-         PYTHONDONTWRITEBYTECODE = 1
+setenv =
+  VIRTUAL_ENV={envdir}
+  PYTHONPATH = {toxinidir}:{toxinidir}/lib:{toxinidir}/src
+  PYTHONDONTWRITEBYTECODE = 1
 deps =  -r{toxinidir}/requirements.txt
 
 
@@ -99,7 +101,7 @@
   charmcraft
   sh
 commands =
-  charmcraft build
+  charmcraft pack
   sh -c 'ubuntu_version=20.04; \
         architectures="amd64-aarch64-arm64"; \
         charm_name=`cat metadata.yaml | grep -E "^name: " | cut -f 2 -d " "`; \