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| 1 This directory contains an example app ("cloudreader") that runs in the | |
| 2 Python version of the Google App Engine, accessing Google storage via the | |
| 3 Google-modified version of the boto open source Python library. | |
| 4 | |
| 5 To install and try the cloudreader app, take the following steps: | |
| 6 | |
| 7 1. The current code assumes you are already familiar with Google | |
| 8 App Engine, and have it installed. If that's not true, start at | |
| 9 http://code.google.com/appengine/ | |
| 10 | |
| 11 In the remainder of these instructions, we assume you have gsutil unpacked | |
| 12 in /usr/local/gsutil, and Google App Engine installed at /usr/local/google_appen
gine | |
| 13 | |
| 14 2. Copy the boto and cloudreader code into the google_appengine directory: | |
| 15 % cp -pr /usr/local/gsutil/cloudreader /usr/local/google_appengine | |
| 16 % cp -pr /usr/local/gsutil/boto /usr/local/google_appengine/cloudreader | |
| 17 | |
| 18 3. Edit cloudreader/boto.cfg to contain the keys you received from Google | |
| 19 (and Amazon, if you also want to use those keys): | |
| 20 % vim /usr/local/google_appengine/cloudreader/boto.cfg | |
| 21 (or use your favorite text editor) | |
| 22 | |
| 23 FYI, the cloudreader app reads a publicly readable object | |
| 24 (gs://pub/shakespeare/rose.txt), but that the boto library requires | |
| 25 credentials for all accesses, even to public objects. | |
| 26 | |
| 27 4. Try running it: | |
| 28 % cd /usr/local/google_appengine | |
| 29 % ./dev_appserver.py cloudreader | |
| 30 and then open your browser to http://localhost:8080 | |
| 31 | |
| 32 If it works, you should see a short Shakespeare quote. | |
| 33 | |
| 34 5. A note about key security: Be careful not to put | |
| 35 the boto.cfg file in any directory that app.yaml defines as serving | |
| 36 static content. The example (cloudreader) app is correctly configured in | |
| 37 this regard, and is important to make sure your configuration continues | |
| 38 to enforce this constraint when you incorporate the code and config file | |
| 39 into your real app. | |
| 40 | |
| 41 For good measure, whenever you change configurations you should try | |
| 42 opening your web browser to http://localhost:8080/boto.cfg (or whatever | |
| 43 path your app.yaml would map to where your boto.cfg file is located). | |
| 44 This should *fail* to open your boto.cfg file! | |
| 45 | |
| 46 6. At this point you can upload your app to Google | |
| 47 infrastructure, following the instructions at | |
| 48 http://code.google.com/appengine/docs/python/gettingstarted/uploading.html | |
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