I have tried to build my Flask app from my Github repository using the App Platform UI.
I have managed to build the app, as indicated by the build logs, but I am unable to deploy the app, and the deployment log kept on throwing this particular error:
I have tried changing the dependency from opencv-python to opencv-python-headless, but to no avail, and after some simple search online, I found that OpenCV is not supported by heroku-python-buildpack, which is the default buildpack used by App Platform to build the app.
I am wondering what are the steps which I can take, or files which I have to add to my Github repository, in order for App Platform to be able to compile OpenCV for use with my Flask app.
Any form of help will be appreciated.
This textbox defaults to using Markdown to format your answer.
You can type !ref in this text area to quickly search our full set of tutorials, documentation & marketplace offerings and insert the link!
These answers are provided by our Community. If you find them useful, show some love by clicking the heart. If you run into issues leave a comment, or add your own answer to help others.
Join our DigitalOcean community of over a million developers for free! Get help and share knowledge in Q&A, subscribe to topics of interest, and get courses and tools that will help you grow as a developer and scale your project or business.
👋 @Occutracker
Great question, I think this would be a good candidate for using Dockerfile based builds.
I hacked together a sample flask app that uses opencv. Disclaimer I don’t have any Python/Flask experience so this might not be best practice.
flask-opencv-streaming sample
A Dockerfile based build will automatically be detected if the Dockerfile exists in the root of the project. My dockerfile looks like:
and my DO app spec looks like: