Attempt to install and use PyPy for our virtual environment.

playbooks/roles/edx_ansible/defaults/main.yml

@@ -20,7 +20,10 @@
 EDX_ANSIBLE_DUMP_VARS: false
 
 
+edxapp_pypy_ppa: "ppa:pypy/ppa"
+
 edx_ansible_debian_pkgs:
+  - pypy
   - python-pip
   - python-apt
   - libmysqlclient-dev

playbooks/roles/edx_ansible/tasks/main.yml

@@ -45,6 +45,13 @@
   tags:
     - install:base
 
+# adding pypy repo
+- name: add ppas for current versions of pypy
+  apt_repository: repo="{{ edxapp_pypy_ppa }}"
+  tags:
+    - install
+    - install:base
+
 - name: install a bunch of system packages on which edx_ansible relies
   apt: pkg={{','.join(edx_ansible_debian_pkgs)}} state=present update_cache=true
   tags:

playbooks/roles/edxapp/defaults/main.yml

@@ -584,6 +584,7 @@ EDXAPP_SESSION_COOKIE_SECURE: false
 edxapp_data_dir: "{{ COMMON_DATA_DIR }}/edxapp"
 edxapp_app_dir: "{{ COMMON_APP_DIR }}/edxapp"
 edxapp_log_dir: "{{ COMMON_LOG_DIR }}/edxapp"
+edxapp_pypy_bin: "/usr/lib/pypy/bin/pypy-c"
 edxapp_venvs_dir: "{{ edxapp_app_dir }}/venvs"
 edxapp_venv_dir: "{{ edxapp_venvs_dir }}/edxapp"
 edxapp_venv_bin: "{{ edxapp_venv_dir }}/bin"

playbooks/roles/edxapp/tasks/deploy.yml

@@ -177,7 +177,7 @@
 
 - name: Create the virtualenv to install the Python requirements
   command: >
-    virtualenv {{ edxapp_venv_dir }}
+    virtualenv --python={{ edxapp_pypy_bin }} {{ edxapp_venv_dir }}
     chdir={{ edxapp_code_dir }}
     creates={{ edxapp_venv_dir }}/bin/pip
   sudo_user: "{{ edxapp_user }}"