Encrypt Node Private Key

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I have read in the docs that you can use the AWS secrets manager for the node private key, but is there a way to do that outside of AWS? I basically want a setup that enables on startup up the node to load the private key (or a passphrase for the encrypted private key) into memory from a deployment laptop over a reverse ssh tunnel or maybe a hashicorp vault.
Is anyone else running a setup like this or know if it is possible with Eclair?