Problems with reticulate when publishing to shinyapps.io

[magralo]

Hello guys,

I have the following error when deploying my app:

On the logs this is what i get

2021-04-01T05:52:53.707966+00:00 shinyapps[3895664]: Killed
2021-04-01T05:52:53.715789+00:00 shinyapps[3895664]: Error in value[3L] :
2021-04-01T05:52:53.715790+00:00 shinyapps[3895664]: Error installing package(s): 'keras', 'pandas', 'numpy', 'scipy', 'scikit-learn', 'tensorflow-cpu', 'pillow'
2021-04-01T05:52:53.715824+00:00 shinyapps[3895664]: Ejecución interrumpida
2021-04-01T05:52:53.715792+00:00 shinyapps[3895664]: Calls: local ... tryCatch -> tryCatchList -> tryCatchOne ->
2021-04-01T05:52:53.891988+00:00 shinyapps[system]: Out of memory!

This is due to the global.R file which has the following lines:

virtualenv_create(envname = "python_environment", python= "python3")
virtualenv_install("python_environment", packages = c('keras', 'pandas','numpy','scipy','scikit-learn', 'tensorflow-cpu','pillow'))
reticulate::use_virtualenv("python_environment", required = TRUE)

[nirgrahamuk]

@magralo

shinyapps[system]: Out of memory!

Is this a free tier app, or a paid one that supports increasing the instance memory?

[magralo]

Free tier... is that the problem?

[nirgrahamuk]

I think being free tier limits your ability to simply get more memory, and it seems your requirements take a lot of memory.
Have you profiled your app locally to determine how much memory it uses ? That information might be useful to you.

[magralo]

Okay,

But this step could be run just once when creating the image for the app. Is there any way to add an additional step to the image build?

[nirgrahamuk]

I'm confused and don't understand what your question relates to