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authorFranck Cuny <franck@fcuny.net>2026-01-24 17:54:51 -0800
committerFranck Cuny <franck@fcuny.net>2026-01-24 17:54:51 -0800
commit3701b8631a5c3e9c7992415f9e3fe1a3af77bbce (patch)
tree5184c86a477d18e17fcb44cc63a2e802e6e8a88e /tools/deploy-nixos.py
parentbackup persisted data (diff)
downloadinfra-main.tar.gz
rebuild framebox with impermanenceHEADmain
Diffstat (limited to 'tools/deploy-nixos.py')
-rwxr-xr-xtools/deploy-nixos.py87
1 files changed, 87 insertions, 0 deletions
diff --git a/tools/deploy-nixos.py b/tools/deploy-nixos.py
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+++ b/tools/deploy-nixos.py
@@ -0,0 +1,87 @@
+#!/usr/bin/env -S uv run
+# /// script
+# dependencies = []
+# ///
+
+import argparse
+import subprocess
+import tempfile
+import shutil
+from pathlib import Path
+
+def run_cmd(cmd, capture=False):
+ """Run a command and optionally capture output."""
+ if capture:
+ result = subprocess.run(cmd, shell=True, capture_output=True, text=True, check=True)
+ return result.stdout.strip()
+ else:
+ subprocess.run(cmd, shell=True, check=True)
+
+
+def derive_public_key(private_key_path):
+ """Derive public key from private key."""
+ return run_cmd(f"ssh-keygen -y -f {private_key_path}", capture=True)
+
+
+def main():
+ parser = argparse.ArgumentParser(description='Deploy NixOS using nixos-anywhere')
+ parser.add_argument('--flake', required=True, help='Name of the flake configuration')
+ parser.add_argument('--target-ip', required=True, help='IP address of target VM')
+ args = parser.parse_args()
+
+ flake_name = args.flake
+ target_ip = args.target_ip
+
+ temp_dir = Path(tempfile.mkdtemp())
+
+ try:
+ initrd_ssh_dir = temp_dir / "persist" / "secrets"
+ initrd_ssh_dir.mkdir(parents=True)
+
+ host_ssh_dir = temp_dir / "persist" / "etc" / "ssh"
+ host_ssh_dir.mkdir(parents=True)
+
+ ssh_key = run_cmd(f"passage show hosts/{flake_name}/ssh/ssh_host_ed25519_key", capture=True)
+
+ initrd_ssh_key_path = initrd_ssh_dir / "ssh_host_ed25519_key"
+ initrd_ssh_key_path.write_text(ssh_key + '\n')
+ initrd_ssh_key_path.chmod(0o600)
+
+ host_ssh_key_path = host_ssh_dir / "ssh_host_ed25519_key"
+ host_ssh_key_path.write_text(ssh_key + '\n')
+ host_ssh_key_path.chmod(0o600)
+
+ public_key = derive_public_key(host_ssh_key_path)
+
+ initrd_ssh_pub_path = initrd_ssh_dir / "ssh_host_ed25519_key.pub"
+ initrd_ssh_pub_path.write_text(public_key + '\n')
+ initrd_ssh_pub_path.chmod(0o644)
+
+ host_ssh_pub_path = host_ssh_dir / "ssh_host_ed25519_key.pub"
+ host_ssh_pub_path.write_text(public_key + '\n')
+ host_ssh_pub_path.chmod(0o644)
+
+ disk_key = run_cmd(f"passage show hosts/{flake_name}/disk-encryption/passphrase", capture=True)
+ disk_key_file = Path("/tmp/disk.key")
+ disk_key_file.write_text(disk_key)
+ disk_key_file.chmod(0o600)
+
+ cmd = [
+ "nix", "run", "github:nix-community/nixos-anywhere", "--",
+ "--flake", f".#{flake_name}",
+ "--build-on", "remote",
+ "--disk-encryption-keys", "/tmp/disk.key", str(disk_key_file),
+ "--target-host", f"root@{target_ip}",
+ "--extra-files", str(temp_dir)
+ ]
+
+ subprocess.run(cmd, check=True)
+
+ finally:
+ # Clean up
+ shutil.rmtree(temp_dir)
+ if Path("/tmp/disk.key").exists():
+ Path("/tmp/disk.key").unlink()
+
+if __name__ == "__main__":
+ main()