"gcloud preview app run ./app.yaml" error with python managed VMs

[Cyril MORISSE]

Hello,

I'm a beginner with Appengine / Python and I work on OSX Yosemite.

I'm following the Managed VM Python tutorial: https://cloud.google.com/appengine/docs/managed-vms/tutorial/step1

I'm at step 6 and everything is Ok.

But there is something I don't understand.

- Deployment with gcloud preview app deploy ./app.yaml is Ok

- Deployment with "gcloud preview app run ./app.yaml" is Ok if I export GAE_LOCAL_VM_RUNTIME=0.  In that case, my app is running in a local container (version 1.7) and I can access it.

But I'm struggling with: "gcloud preview app run ./app.yaml" when GAE_LOCAL_VM_RUNTIME is undefined or set to 1.

In that case launch is OK.

cmorisse@dueto:appengine-vm-fortunespeak-python$ gcloud preview app run ./app.yaml
Module [default] found in file [/Users/cmorisse/dev-inouk/appengine/appengine-vm-fortunespeak-python/app.yaml]
INFO: Looking for the Dockerfile in /Users/cmorisse/dev-inouk/appengine/appengine-vm-fortunespeak-python
INFO: Using Dockerfile found in /Users/cmorisse/dev-inouk/appengine/appengine-vm-fortunespeak-python
INFO     2015-08-13 13:41:07,025 application_configuration.py:399] No version specified. Generated version id: 20150813t134107
INFO     2015-08-13 13:41:07,025 devappserver2.py:763] Skipping SDK update check.
INFO     2015-08-13 13:41:07,056 api_server.py:205] Starting API server at: http://localhost:50839
INFO     2015-08-13 13:41:07,061 dispatcher.py:197] Starting module "default" running at: http://localhost:8080
INFO     2015-08-13 13:41:07,063 admin_server.py:118] Starting admin server at: http://localhost:8000
INFO     2015-08-13 13:41:08,073 module.py:1767] New instance for module "default" serving on:
http://localhost:8080
INFO     2015-08-13 13:41:08,500 module.py:809] default: "GET /_ah/start HTTP/1.1" 404 233

But when I access http://localhost:8080, I get:

ERROR    2015-08-13 13:44:56,125 app.py:1423] Exception on / [GET]
Traceback (most recent call last):
  File "/Users/cmorisse/dev-inouk/appengine/appengine-vm-fortunespeak-python/lib/flask/app.py", line 1817, in wsgi_app
    response = self.full_dispatch_request()
  File "/Users/cmorisse/dev-inouk/appengine/appengine-vm-fortunespeak-python/lib/flask/app.py", line 1477, in full_dispatch_request
    rv = self.handle_user_exception(e)
  File "/Users/cmorisse/dev-inouk/appengine/appengine-vm-fortunespeak-python/lib/flask/app.py", line 1381, in handle_user_exception
    reraise(exc_type, exc_value, tb)
  File "/Users/cmorisse/dev-inouk/appengine/appengine-vm-fortunespeak-python/lib/flask/app.py", line 1475, in full_dispatch_request
    rv = self.dispatch_request()
  File "/Users/cmorisse/dev-inouk/appengine/appengine-vm-fortunespeak-python/lib/flask/app.py", line 1461, in dispatch_request
    return self.view_functions[rule.endpoint](**req.view_args)
  File "/Users/cmorisse/dev-inouk/appengine/appengine-vm-fortunespeak-python/main.py", line 11, in fortune
    msg = subprocess.check_output('fortune')
AttributeError: 'module' object has no attribute 'check_output'

It seems to me, that my program is running within the sandboxed SDK that explains check_output is unavailable.

I'm surprised as I would think that with these lines in my app.yaml

runtime: python27

vm: true

then gcloud preview app run ./app.yaml will do a "dockerless" build and run my app locally without the

constraints of the sandboxed app.

Any idea about what I'm missing ?

Thanks,

Cyril

[Andrew Jessup]

Hey Cryril - this sounds like a bug. Would you mind reporting this on our issue tracker? https://code.google.com/p/googleappengine and we'll follow up there.

[Cyril MORISSE]

Hello Andrew,

Here is the issue: https://code.google.com/p/googleappengine/issues/detail?id=12262

Regards,

Cyril