What's best practice to handle env vars? How do poeple handle them "securely" without it just being security theater? What tools and workflows are people using?
However I do feel now like my sensitive things are better off deployed on a VPS where someone would need a ssh exploit to come at me.
Notice how their tutorial says "run 'dotenvx run -- yourapp'". If you did 'dotenvx run -- env', all your secrets would be printed right there in plaintext, at runtime, since they're just encrypted at rest.
The equivalent in vercel would be encrypted in the database (the encrypted '.env' file), with a decryption key in the backend (the '.env.keys' file by default in dotenvx) used to show them in the frontend and decrypt them for running apps.
The point of encryption is often times about what other software or hardware attacks are minimized or eliminated.
However, if someone figures out access to a running system, theres really no way to both allow an app to run and keep everything encrypted. It certainly is possible, like the way keepass encrypts items in memory, but if an attacker has root on a server, they just wait for it to be accessed if not outright find the key that encrypted it.
This is to say, 99.9% of the apps and these platforms arn't secure against this type of low level intrusion.
Various certifications require this, I guess because they were written before hyper scalers and the assumed attack vector was that someone would literally steal a hard drive.
A running machine is not “at rest”, just like you can read files on your encrypted Mac HDD, the running program has decrypted access to the hard drive.
You can, theoretically, decompile the system memory dump and try to mine the credentials out of the credential server's heap, but that exploit is exponentially more difficult to do that a simple `cat /proc/1234/environ`.
For non-sensitive environment variables, they also show you the value in the dashboard so you can check and edit them later.
Things like 'NODE_ENV=production' vs 'NODE_ENV=development' is probably something the user wants to see, so that's another argument for letting the backend decrypt and display those values even ignoring the "running your app" part.
You're welcome to add an input that goes straight to '/dev/null' if you want, but it's not exactly a useful feature.
Piping to /dev/null is of course pointless.
What you really want is the /dev/null as a Service Enterprise plan for $500/month with its High Availability devnull Cluster ;)
(And modern Linux is unusable without root access, thanks to Docker and other fast-and-loose approaches.)
Because I never do, unless I'm down in the depths of /var/lib/docker doing stuff I shouldn't.