DCD-386: Enable Bitbucket Pipelines testing with Molecule.

bin/run-all-tests

@@ -2,9 +2,14 @@
 
 set -e
 
+# Use Ansible from virtualenv if provided
+if [[ -f .venv/bin/ansible ]]; then
+    source .venv/bin/activate
+    pip install molecule docker
+fi
+
 for role in `find roles/ -name molecule`; do
     pushd `dirname $role`
     molecule test --all
     popd
 done
-