Translator’s note: This is the fourth article of the series “Cloud Foundry 100-day Challenge selection”. “#011” in the title means that it is 11th (published on June 18, 2015) in the original Japanese series.
The 11th topic of “Cloud Foundry 100-Day Challenge” is chatapp, which is a chat application written in Python. Let us deploy it and enjoy some chatting.
- Official site
- Source code
chatapp – Simple chat using Angular.js/Flask (translator’s note: in Japanese)
Retrieving Source Code
$ git clone https://github.com/vinceprignano/chatapp.git
Enter into the
$ cd chatapp/
Since this is a simple chat application in Python that does not even use a database, let us push it as is first.
$ cf push chatapp Creating app chatapp in org ueno / space test1 as ueno... :
As we let it run, a Python environment is being built, the deployment proceeds, and ..
: requested state: started instances: 1/1 usage: 256M x 1 instances urls: chatapp.10.244.0.34.xip.io last uploaded: Wed Jun 17 06:14:50 +0000 2015 stack: lucid64 state since cpu memory disk details #0 running 2015-06-17 03:16:46 PM 0.0% 70M of 256M 0 of 1G
The deployment has been successful, and the application has been started!
Checking Application Behavior
Anyways, the application is running, so let us go ahead and access the URL
Initial Screen (User Entry)
Enter user name.
Enter with multiple users, and chat away.
You will be able to enjoy chatting in real time.
And just like that, with merely a simle push command! Today, we have confirmed how easy things can be with Cloud Foundry.
By the way, today’s application should require the python-buildpack , since Python is used. How was this processed? The answer is that the buildpack was already included, by default, in the bosh-lite environment which we used. Let us confirm.
$ cf buildpacks Getting buildpacks... buildpack position enabled locked filename java_buildpack 1 true false java-buildpack-v2.5.zip ruby_buildpack 2 true false ruby_buildpack-offline-v1.1.4.zip nodejs_buildpack 3 true false nodejs_buildpack-offline-v1.0.4.zip go_buildpack 4 true false go_buildpack-offline-v1.0.4.zip python_buildpack 5 true false python_buildpack-offline-v1.0.5.zip php_buildpack 6 true false php_buildpack-offline-v1.0.2.zip
If your current environment doesn’t have the python-buildpack, please specify
-b https://github.com/cloudfoundry/python-buildpack when executing the push for the application. Alternatively, you can also create a manifest file and write in the specifications, like you found in the end section of the fifth article. (Translator’s note: the “fifth article” indicates the one in the original Japanese articles, which is Running 243 Game on Cloud Foundry.)
The Environment Used in this Post
- cf-release (v194)
( https://github.com/cloudfoundry/cf-release/tree/345a8b3e1ea0005a3e9fced13f0bf6fa6f7ad981 )
- CF CLI (v6.11.3-cebadc9-2015-05-20T19:00:58+00:00)
Written by: Isoo Ueno