Merge pull request #2563 from edx/benp/venv-provision

Updates for recent repo requirements on base box (testeng).

util/packer/jenkins_worker.json

@@ -49,6 +49,9 @@
     "inline": ["sudo apt-get -y install git-core"]
   }, {
     "type": "shell",
+    "inline": ["sudo apt-get -y install libmysqlclient-dev"]
+  }, {
+    "type": "shell",
     "inline": ["cd {{user `playbook_remote_dir`}}",
       "virtualenv packer-venv",
       ". packer-venv/bin/activate",
@@ -59,7 +62,10 @@
   }, {
     "type": "shell",
     "inline": ["cd {{user `playbook_remote_dir`}}",
+      "rm -rf packer-venv",
+      "virtualenv packer-venv",
       ". packer-venv/bin/activate",
+      "pip install -q -r requirements.txt",
       "ansible-playbook run_role.yml -i inventory.ini -c local -e role=test_build_server -vvvv"]
   }]
 }