982da2f3ea
We already did all the instantiation, grabbing the calculated output path too is cheap. Change-Id: Id591865c65159409da739f706a9de29a9f50456a Reviewed-on: https://cl.tvl.fyi/c/depot/+/11214 Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI Autosubmit: flokli <flokli@flokli.de> |
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| .. | ||
| main.tf | ||
| nix-eval.sh | ||
| nixos-copy.sh | ||
| README.md | ||
deploy-nixos
This is a Terraform module to deploy a NixOS system closure to a remote machine.
The system closure must be accessible by Nix-importing the repository
root and building a specific attribute
(e.g. nix-build -A ops.machines.machine-name).
The target machine must be accessible normally over SSH, and an SSH key must be used for access.
Notably this module separates the evaluation of the system closure from building and deploying it, and uses the closure's derivation hash to determine whether a deploy is necessary.
Usage example:
module "deploy_somehost" {
source = "git::https://code.tvl.fyi/depot.git:/ops/terraform/deploy-nixos.git"
attrpath = "ops.nixos.somehost"
target_host = "somehost.tvl.su"
target_user = "someone"
target_user_ssh_key = tls_private_key.somehost.private_key_pem
}
Future work
Several things can be improved about this module, for example:
-
The repository root (relative to which the attribute path is evaluated) could be made configurable.
-
The remote system closure could be discovered to restore remote system state after manual deploys on the target (i.e. "stomping" of changes).
More ideas and contributions are, of course, welcome.
Acknowledgements
Development of this module was sponsored by Resoptima.