# Lago 1.8.2 docker-compose startup fails: OpenSSL::PKey::RSAError: Neither PUB key nor PRIV key

## What's going on

Deploying Lago 1.8.2 with docker-compose, the API container crashed during db:migrate with `bin/rails aborted! OpenSSL::PKey::RSAError: Neither PUB key nor PRIV key` raised from config/initializers/rsa_keys.rb. The deployment was missing the LAGO_RSA_PRIVATE_KEY env value. A side note from the thread: the 1.8.2 compose image was mis-tagged and effectively still 1.8.1, which the maintainer called a release-process mistake.

## The verified fix

Generate an RSA private key and set it before starting: `echo "LAGO_RSA_PRIVATE_KEY [your value] genrsa 2048 | base64)\"" >> .env` then `source .env`. The maintainer confirmed the missing key was the cause of the crash. On the mis-tagged image: pulling the repo directly worked around the 1.8.2/1.8.1 mix-up until the release process was fixed. Source: https://github.com/getlago/lago/issues/389

## How to use this

Take the question above and check if it matches what you're seeing. If it does, work through the verified fix step by step. Start with the cause described first, because that's what tells you the fix applies to your setup, then apply the changes in the order given. Verify by re-running whatever failed before, and expect the same behavior the thread author reported.