How to retrieve my app's TLS Certificate?

My back-end needs to connect to a certain server with a SSL/TLS connection. I assume I’d need to have the client library (Rust’s reqwest) to load the site’s certificate.

However the back-end runs as a D.O. App and, therefore, the certificate is automatically assigned. Is there any way for me to retrieve that certificate from my back-end and add it to the client library to allow it to authenticate?

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Nevermind. This was a error on the Docker container configuration.

Turns out we built the container using the “scratch” image, totally empty of certificates.

I switched to the “Alpine” image and now it works fine.