Use ansible-local provisioner.

util/packer/jenkins_worker.json

@@ -55,17 +55,32 @@
     "inline": ["cd {{user `playbook_remote_dir`}}",
       "virtualenv packer-venv",
       ". packer-venv/bin/activate",
-      "pip install -q -r requirements.txt",
-      "echo '[jenkins_worker]' > inventory.ini",
-      "echo 'localhost' >> inventory.ini",
-      "ansible-playbook edx-east/jenkins_worker.yml -i inventory.ini -c local -vvvv"]
+      "pip install -q -r requirements.txt"]
+  }, {
+    "type": "ansible-local",
+    "playbook_file": "../../playbooks/edx-east/jenkins_worker.yml",
+    "playbook_dir": "../../playbooks",
+    "command": "source {{user `playbook_remote_dir`}}/packer-venv/bin/activate && ansible-playbook",
+    "inventory_groups": "jenkins_worker",
+    "extra_arguments": [
+      "-vvv"
+      ]
   }, {
     "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"]
+      "pip install -q -r requirements.txt"]
+  }, {
+    "type": "ansible-local",
+    "playbook_file": "../../playbooks/run_role.yml",
+    "playbook_dir": "../../playbooks",
+    "command": "source {{user `playbook_remote_dir`}}/packer-venv/bin/activate && ansible-playbook",
+    "inventory_groups": "jenkins_worker",
+    "extra_arguments": [
+      "-e \"role=test_build_server test_edx_platform_version={{user `test_platform_version`}}\"",
+      "-vvv"
+      ]
     }]
 }