changing where we set the ansible_python_interpreter so that it can be overriden at a task level

bin/ansible-with-atl-env

@@ -20,7 +20,7 @@ set +a
 pipenv run \
     ansible-playbook -v \
         $ATL_DEPLOYMENT_REPOSITORY_CUSTOM_PARAMS \
-        -e "ansible_python_interpreter=$(pipenv --venv)/bin/python" \
+        -e "pipenv_venv=$(pipenv --venv)/bin/python" \
         -e "${PLAYBOOK_INVOCATION_EXTRA_PARAMS}" \
         -i $INV \
         $PLAYBOOK \

group_vars/aws_node_local.yml

@@ -9,6 +9,8 @@
 #
 #    https://docs.ansible.com/ansible/latest/user_guide/playbooks_variables.html
 
+ansible_python_interpreter: "{{ pipenv_venv | default(omit) }}"
+
 java_major_version: "8"
 postgres_version: "9.6"
 git_version: "2.14.4"