Files
clan-core/pkgs/clan-cli/clan_cli/machines/machines.py
2023-11-29 11:38:01 +01:00

112 lines
3.4 KiB
Python

import json
import os
import subprocess
import sys
from pathlib import Path
from typing import Optional
from ..nix import nix_build, nix_config, nix_eval
from ..ssh import Host, parse_deployment_address
def build_machine_data(machine_name: str, clan_dir: Path) -> dict:
config = nix_config()
system = config["system"]
outpath = subprocess.run(
nix_build(
[
f'path:{clan_dir}#clanInternals.machines."{system}"."{machine_name}".config.system.clan.deployment.file'
]
),
stdout=subprocess.PIPE,
check=True,
text=True,
).stdout.strip()
return json.loads(Path(outpath).read_text())
class Machine:
def __init__(
self,
name: str,
flake_dir: Path,
machine_data: Optional[dict] = None,
) -> None:
"""
Creates a Machine
@name: the name of the machine
@clan_dir: the directory of the clan, optional, if not set it will be determined from the current working directory
@machine_json: can be optionally used to skip evaluation of the machine, location of the json file with machine data
"""
self.name = name
self.flake_dir = flake_dir
if machine_data is None:
self.machine_data = build_machine_data(name, self.flake_dir)
else:
self.machine_data = machine_data
self.deployment_address = self.machine_data["deploymentAddress"]
self.upload_secrets = self.machine_data["uploadSecrets"]
self.generate_secrets = self.machine_data["generateSecrets"]
self.secrets_upload_directory = self.machine_data["secretsUploadDirectory"]
@property
def host(self) -> Host:
return parse_deployment_address(
self.name, self.deployment_address, meta={"machine": self}
)
def run_upload_secrets(self, secrets_dir: Path) -> bool:
"""
Upload the secrets to the provided directory
@secrets_dir: the directory to store the secrets in
"""
env = os.environ.copy()
env["CLAN_DIR"] = str(self.flake_dir)
env["PYTHONPATH"] = str(
":".join(sys.path)
) # TODO do this in the clanCore module
env["SECRETS_DIR"] = str(secrets_dir)
print(f"uploading secrets... {self.upload_secrets}")
proc = subprocess.run(
[self.upload_secrets],
env=env,
text=True,
)
if proc.returncode == 23:
print("no secrets to upload")
return False
elif proc.returncode != 0:
print("failed generate secrets directory")
exit(1)
return True
def eval_nix(self, attr: str) -> str:
"""
eval a nix attribute of the machine
@attr: the attribute to get
"""
output = subprocess.run(
nix_eval([f"path:{self.flake_dir}#{attr}"]),
stdout=subprocess.PIPE,
check=True,
text=True,
).stdout.strip()
return output
def build_nix(self, attr: str) -> Path:
"""
build a nix attribute of the machine
@attr: the attribute to get
"""
outpath = subprocess.run(
nix_build([f"path:{self.flake_dir}#{attr}"]),
stdout=subprocess.PIPE,
check=True,
text=True,
).stdout.strip()
return Path(outpath)