pasteable command for trying without rebuilding vm

This commit is contained in:
Kiara Grouwstra 2025-08-19 12:00:35 +02:00
parent e7f8f12d20
commit ef25264045
Signed by: kiara
SSH key fingerprint: SHA256:COspvLoLJ5WC5rFb9ZDe5urVCkK4LJZOsjfF4duRJFU

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declare substituters trusted_public_keys drv_path
host="root@fedi203.abundos.eu"
sshOpts=(
-o BatchMode=yes
-o StrictHostKeyChecking=no
)
command=(nix-instantiate --expr '
let
sources = import ./npins;
configuration = {
imports = [
./infra/common/proxmox-qemu-vm.nix
./infra/common/nixos/users.nix
./deployment/check/common/sharedOptions.nix
./deployment/check/common/targetNode.nix
"${sources.disko}/module.nix"
];
};
eval = import "${sources.nixpkgs}/nixos/lib/eval-config.nix" {
system = builtins.currentSystem;
specialArgs = {
inherit sources;
};
modules = [ configuration ];
};
os = {
inherit (eval) pkgs config options;
system = eval.config.system.build.toplevel;
inherit (eval.config.system.build) vm vmWithBootLoader;
};
in
{
substituters = builtins.concatStringsSep " " os.config.nix.settings.substituters;
trusted_public_keys = builtins.concatStringsSep " " os.config.nix.settings.trusted-public-keys;
drv_path = os.config.system.build.toplevel.drvPath;
out_path = os.config.system.build.toplevel;
}
')
buildArgs=(
--option extra-binary-caches https://cache.nixos.org/
--option substituters "$substituters"
--option trusted-public-keys "$trusted_public_keys"
)
"${command[@]}" -A out_path
json="$("${command[@]}" --eval --strict --json)"
eval "export $(echo $json | jq -r 'to_entries | map("\(.key)=\(.value)") | @sh')"
outPath=$(nix-store --realize "$drv_path" "${buildArgs[@]}")
NIX_SSHOPTS="${sshOpts[*]}" nix-copy-closure --to "$host" "$outPath" --gzip --use-substitutes
ssh "${sshOpts[@]}" "$host" "nix-env --profile /nix/var/nix/profiles/system --set $outPath; $outPath/bin/switch-to-configuration switch"