Adding (temporary) managed VMs samples

Author: Jon Wayne Parrott

managed_vms/hello_world/.gitignore

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+lib

managed_vms/hello_world/README.md

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+## Google App Engine Managed VMs Python Hello World
+
+This sample demonstrates using [Python on Google App Engine Managed VMs](https://cloud.google.com/appengine/docs/python/managed-vms/hello-world)
+
+### Running & deploying the sample
+
+1. Requirements.txt is not automatically processed by Google App Engine Managed VMs. To install dependencies for this sample, run:
+
+        $ pip install -t lib -r requirements.txt
+
+2. Run the sample on your development server:
+        
+        $ dev_appserver.py .
+
+3. Deploy the sample:
+
+        $ appcfg.py update -A your-app-id .

managed_vms/hello_world/app.yaml

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+version: 1
+runtime: python27
+vm: true
+api_version: 1
+threadsafe: true
+
+handlers:
+- url: .*  # This regex directs all routes to main.app
+  script: main.app

managed_vms/hello_world/appengine_config.py

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+from google.appengine.ext import vendor
+
+# Add any libraries installed in the "lib" folder.
+vendor.add('lib')

managed_vms/hello_world/main.py

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+# Copyright 2015 Google Inc. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# [START app]
+from flask import Flask
+
+
+app = Flask(__name__)
+
+
+@app.route('/')
+def hello():
+    """Return a friendly HTTP greeting."""
+    return 'Hello World!'
+# [END app]

managed_vms/hello_world/requirements.txt

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+Flask==0.10.1

managed_vms/hello_world_custom/Dockerfile

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+FROM google/python-runtime
+
+ENTRYPOINT /env/bin/gunicorn -b 0.0.0.0:8080 main:app

managed_vms/hello_world_custom/README.md

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+## Google App Engine Managed VMs Python Custom Runtime Hello World
+
+This sample demonstrates using [Python on Google App Engine Managed VMs](https://cloud.google.com/appengine/docs/python/managed-vms/hello-world) with a custom runtime.
+
+This sample does not use the standard App Engine python runtime, but instead uses
+a custom runtime. The custom runtime ensures that any requirements defined
+in `requirements.txt` are automatically installed.
+
+### Running & deploying the sample
+
+To run the sample locally, use a virtualenv:
+
+    $ virtualenv env
+    $ source env/bin/activate.sh
+    $ pip install -r requirements.txt
+    $ python main.py
+
+To deploy the sample, use the [Google Cloud SDK](https://cloud.google.com/sdk)
+
+    $ gcloud preview app deploy app.yaml

managed_vms/hello_world_custom/app.yaml

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+runtime: custom
+vm: true
+api_version: 1

managed_vms/hello_world_custom/main.py

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+# Copyright 2015 Google Inc. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# [START app]
+from flask import Flask
+
+
+app = Flask(__name__)
+
+
+@app.route('/')
+def hello():
+    """Return a friendly HTTP greeting."""
+    return 'Hello World!'
+
+
+if __name__ == '__main__':
+    # This is used when running locally. Gunicorn is used to run the
+    # application on Google App Engine. See ENTRYPOINT in the Dockerfile.
+    app.run(host='127.0.0.1', port=8080, debug=True)
+# [END app]