Error while deploying Node.js app

[rubys]

My guess is that the problem you are seeing is that at one point you installed mongoose globally (npm install -g), so that it isn’t included in your package.json. You are going to need to install it locally for this to work.

Next, you will need to modify your Dockerfile and package.json so that mongoose is actually installed and run, and that your database is on a volume. I’ve outlined this process here:

Hosting and connecting to mongodb database

Docker-compose runs multiple processes (in isolation) on a single machine. Fly.io runs the image produced by a Dockerfile on a single virtual machine. Different models require different approaches. If you want to stay close to the docker-compose model, you will need to install mongodb in the same dockerfile you use for your application. Assuming you are starting with the Dockerfile that flyctl launch produces which starts with FROM debian:bullseye ..., you would need to follow the instructio…