generated from Luis/nextjs-python-web-template
90 lines
2.8 KiB
Python
90 lines
2.8 KiB
Python
import argparse
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import json
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import os
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import subprocess
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from ..ssh import Host, HostGroup, HostKeyCheck
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def deploy_nixos(hosts: HostGroup) -> None:
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"""
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Deploy to all hosts in parallel
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"""
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def deploy(h: Host) -> None:
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target = f"{h.user or 'root'}@{h.host}"
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ssh_arg = f"-p {h.port}" if h.port else ""
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env = os.environ.copy()
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env["NIX_SSHOPTS"] = ssh_arg
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res = h.run_local(
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["nix", "flake", "archive", "--to", f"ssh://{target}", "--json"],
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check=True,
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stdout=subprocess.PIPE,
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extra_env=env
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)
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data = json.loads(res.stdout)
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path = data["path"]
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if h.host_key_check != HostKeyCheck.STRICT:
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ssh_arg += " -o StrictHostKeyChecking=no"
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if h.host_key_check == HostKeyCheck.NONE:
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ssh_arg += " -o UserKnownHostsFile=/dev/null"
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ssh_arg += " -i " + h.key if h.key else ""
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flake_attr = h.meta.get("flake_attr", "")
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if flake_attr:
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flake_attr = "#" + flake_attr
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target_host = h.meta.get("target_host")
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if target_host:
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target_user = h.meta.get("target_user")
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if target_user:
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target_host = f"{target_user}@{target_host}"
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extra_args = h.meta.get("extra_args", [])
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cmd = (
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["nixos-rebuild", "switch"]
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+ extra_args
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+ [
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"--fast",
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"--option",
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"keep-going",
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"true",
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"--option",
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"accept-flake-config",
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"true",
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"--build-host",
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"",
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"--flake",
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f"{path}{flake_attr}",
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]
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)
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if target_host:
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cmd.extend(["--target-host", target_host])
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ret = h.run(cmd, check=False)
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# re-retry switch if the first time fails
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if ret.returncode != 0:
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ret = h.run(cmd)
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hosts.run_function(deploy)
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# FIXME: we want some kind of inventory here.
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def update(args: argparse.Namespace) -> None:
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meta = {}
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if args.flake_uri:
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meta["flake_uri"] = args.flake_uri
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if args.flake_attr:
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meta["flake_attr"] = args.flake_attr
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deploy_nixos(HostGroup([Host(args.host, user=args.user, meta=meta)]))
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def register_update_parser(parser: argparse.ArgumentParser) -> None:
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# TODO pass all args we don't parse into ssh_args, currently it fails if arg starts with -
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parser.add_argument("--flake-uri", type=str, default=".#", help="nix flake uri")
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parser.add_argument(
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"--flake-attr", type=str, help="nixos configuration in the flake"
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)
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parser.add_argument("--user", type=str, default="root")
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parser.add_argument("host", type=str)
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parser.set_defaults(func=update)
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