enroll/enroll/cli.py
Miguel Jacq 33b1176800
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Add --sops mode to encrypt harvest and manifest data at rest (especially useful if using --dangerous)
2025-12-17 18:51:40 +11:00

383 lines
14 KiB
Python

from __future__ import annotations
import argparse
import os
import tarfile
import tempfile
from pathlib import Path
from typing import Optional
from .cache import new_harvest_cache_dir
from .harvest import harvest
from .manifest import manifest
from .remote import remote_harvest
from .sopsutil import SopsError, encrypt_file_binary
def _resolve_sops_out_file(out: Optional[str], *, hint: str) -> Path:
"""Resolve an output *file* path for --sops mode.
If `out` looks like a directory (or points to an existing directory), we
place the encrypted harvest inside it as harvest.tar.gz.sops.
"""
if out:
p = Path(out).expanduser()
if p.exists() and p.is_dir():
return p / "harvest.tar.gz.sops"
# Heuristic: treat paths with a suffix as files; otherwise directories.
if p.suffix:
return p
return p / "harvest.tar.gz.sops"
# Default: use a secure cache directory.
d = new_harvest_cache_dir(hint=hint).dir
return d / "harvest.tar.gz.sops"
def _tar_dir_to(path_dir: Path, tar_path: Path) -> None:
tar_path.parent.mkdir(parents=True, exist_ok=True)
with tarfile.open(tar_path, mode="w:gz") as tf:
# Keep a stable on-disk layout when extracted: state.json + artifacts/
tf.add(str(path_dir), arcname=".")
def _encrypt_harvest_dir_to_sops(
bundle_dir: Path, out_file: Path, fps: list[str]
) -> Path:
out_file = Path(out_file)
out_file.parent.mkdir(parents=True, exist_ok=True)
# Create the tarball alongside the output file (keeps filesystem permissions/locality sane).
fd, tmp_tgz = tempfile.mkstemp(
prefix=".enroll-harvest-", suffix=".tar.gz", dir=str(out_file.parent)
)
os.close(fd)
try:
_tar_dir_to(bundle_dir, Path(tmp_tgz))
encrypt_file_binary(Path(tmp_tgz), out_file, pgp_fingerprints=fps, mode=0o600)
finally:
try:
os.unlink(tmp_tgz)
except FileNotFoundError:
pass
return out_file
def _add_common_manifest_args(p: argparse.ArgumentParser) -> None:
p.add_argument(
"--fqdn",
help="Host FQDN/name for site-mode output (creates inventory/, inventory/host_vars/, playbooks/).",
)
g = p.add_mutually_exclusive_group()
g.add_argument(
"--jinjaturtle",
action="store_true",
help="Attempt jinjaturtle template integration (it will error if jinjaturtle is not found on PATH).",
)
g.add_argument(
"--no-jinjaturtle",
action="store_true",
help="Do not use jinjaturtle integration, even if it is installed.",
)
def _jt_mode(args: argparse.Namespace) -> str:
if getattr(args, "jinjaturtle", False):
return "on"
if getattr(args, "no_jinjaturtle", False):
return "off"
return "auto"
def _add_remote_args(p: argparse.ArgumentParser) -> None:
p.add_argument(
"--remote-host",
help="SSH host to run harvesting on (if set, harvest runs remotely and is pulled locally).",
)
p.add_argument(
"--remote-port",
type=int,
default=22,
help="SSH port for --remote-host (default: 22).",
)
p.add_argument(
"--remote-user",
default=os.environ.get("USER") or None,
help="SSH username for --remote-host (default: local $USER).",
)
def main() -> None:
ap = argparse.ArgumentParser(prog="enroll")
sub = ap.add_subparsers(dest="cmd", required=True)
h = sub.add_parser("harvest", help="Harvest service/package/config state")
h.add_argument(
"--out",
help=(
"Harvest output directory. If --sops is set, this may be either a directory "
"(an encrypted file named harvest.tar.gz.sops will be created inside) or a file path."
),
)
h.add_argument(
"--dangerous",
action="store_true",
help="Collect files more aggressively (may include secrets). Disables secret-avoidance checks.",
)
h.add_argument(
"--sops",
nargs="+",
metavar="GPG_FINGERPRINT",
help=(
"Encrypt the harvest output as a SOPS-encrypted tarball using the given GPG fingerprint(s). "
"Requires `sops` on PATH."
),
)
h.add_argument(
"--no-sudo",
action="store_true",
help="Don't use sudo on the remote host (when using --remote options). This may result in a limited harvest due to permission restrictions.",
)
_add_remote_args(h)
m = sub.add_parser("manifest", help="Render Ansible roles from a harvest")
m.add_argument(
"--harvest",
required=True,
help=(
"Path to the directory created by the harvest command, or (with --sops) "
"a SOPS-encrypted harvest tarball."
),
)
m.add_argument(
"--out",
required=True,
help=(
"Output location for the generated manifest. In plain mode this is a directory. "
"In --sops mode this may be either a directory (an encrypted file named manifest.tar.gz.sops will be created inside) "
"or a file path."
),
)
m.add_argument(
"--sops",
nargs="+",
metavar="GPG_FINGERPRINT",
help=(
"In --sops mode, decrypt the harvest using `sops -d` (if the harvest is an encrypted file) "
"and then bundle+encrypt the entire generated manifest output into a single SOPS-encrypted tarball "
"(binary) using the given GPG fingerprint(s). Requires `sops` on PATH."
),
)
_add_common_manifest_args(m)
s = sub.add_parser(
"single-shot", help="Harvest state, then manifest Ansible code, in one shot"
)
s.add_argument(
"--harvest",
help=(
"Where to place the harvest. In plain mode this is a directory; in --sops mode this may be "
"a directory or a file path (an encrypted file is produced)."
),
)
s.add_argument(
"--dangerous",
action="store_true",
help="Collect files more aggressively (may include secrets). Disables secret-avoidance checks.",
)
s.add_argument(
"--sops",
nargs="+",
metavar="GPG_FINGERPRINT",
help=(
"Encrypt the harvest as a SOPS-encrypted tarball, and bundle+encrypt the manifest output in --out "
"(same behavior as `harvest --sops` and `manifest --sops`)."
),
)
s.add_argument(
"--no-sudo",
action="store_true",
help="Don't use sudo on the remote host (when using --remote options). This may result in a limited harvest due to permission restrictions.",
)
s.add_argument(
"--out",
required=True,
help=(
"Output location for the generated manifest. In plain mode this is a directory. "
"In --sops mode this may be either a directory (an encrypted file named manifest.tar.gz.sops will be created inside) "
"or a file path."
),
)
_add_common_manifest_args(s)
_add_remote_args(s)
args = ap.parse_args()
remote_host: Optional[str] = getattr(args, "remote_host", None)
try:
if args.cmd == "harvest":
sops_fps = getattr(args, "sops", None)
if remote_host:
if sops_fps:
out_file = _resolve_sops_out_file(args.out, hint=remote_host)
with tempfile.TemporaryDirectory(prefix="enroll-harvest-") as td:
tmp_bundle = Path(td) / "bundle"
tmp_bundle.mkdir(parents=True, exist_ok=True)
try:
os.chmod(tmp_bundle, 0o700)
except OSError:
pass
remote_harvest(
local_out_dir=tmp_bundle,
remote_host=remote_host,
remote_port=int(args.remote_port),
remote_user=args.remote_user,
dangerous=bool(args.dangerous),
no_sudo=bool(args.no_sudo),
)
_encrypt_harvest_dir_to_sops(
tmp_bundle, out_file, list(sops_fps)
)
print(str(out_file))
else:
out_dir = (
Path(args.out)
if args.out
else new_harvest_cache_dir(hint=remote_host).dir
)
state = remote_harvest(
local_out_dir=out_dir,
remote_host=remote_host,
remote_port=int(args.remote_port),
remote_user=args.remote_user,
dangerous=bool(args.dangerous),
no_sudo=bool(args.no_sudo),
)
print(str(state))
else:
if sops_fps:
out_file = _resolve_sops_out_file(args.out, hint="local")
with tempfile.TemporaryDirectory(prefix="enroll-harvest-") as td:
tmp_bundle = Path(td) / "bundle"
tmp_bundle.mkdir(parents=True, exist_ok=True)
try:
os.chmod(tmp_bundle, 0o700)
except OSError:
pass
harvest(str(tmp_bundle), dangerous=bool(args.dangerous))
_encrypt_harvest_dir_to_sops(
tmp_bundle, out_file, list(sops_fps)
)
print(str(out_file))
else:
if not args.out:
raise SystemExit(
"error: --out is required unless --remote-host is set"
)
path = harvest(args.out, dangerous=bool(args.dangerous))
print(path)
elif args.cmd == "manifest":
out_enc = manifest(
args.harvest,
args.out,
fqdn=args.fqdn,
jinjaturtle=_jt_mode(args),
sops_fingerprints=getattr(args, "sops", None),
)
if getattr(args, "sops", None) and out_enc:
print(str(out_enc))
elif args.cmd == "single-shot":
sops_fps = getattr(args, "sops", None)
if remote_host:
if sops_fps:
out_file = _resolve_sops_out_file(args.harvest, hint=remote_host)
with tempfile.TemporaryDirectory(prefix="enroll-harvest-") as td:
tmp_bundle = Path(td) / "bundle"
tmp_bundle.mkdir(parents=True, exist_ok=True)
try:
os.chmod(tmp_bundle, 0o700)
except OSError:
pass
remote_harvest(
local_out_dir=tmp_bundle,
remote_host=remote_host,
remote_port=int(args.remote_port),
remote_user=args.remote_user,
dangerous=bool(args.dangerous),
no_sudo=bool(args.no_sudo),
)
_encrypt_harvest_dir_to_sops(
tmp_bundle, out_file, list(sops_fps)
)
manifest(
str(out_file),
args.out,
fqdn=args.fqdn,
jinjaturtle=_jt_mode(args),
sops_fingerprints=list(sops_fps),
)
if not args.harvest:
print(str(out_file))
else:
harvest_dir = (
Path(args.harvest)
if args.harvest
else new_harvest_cache_dir(hint=remote_host).dir
)
remote_harvest(
local_out_dir=harvest_dir,
remote_host=remote_host,
remote_port=int(args.remote_port),
remote_user=args.remote_user,
dangerous=bool(args.dangerous),
no_sudo=bool(args.no_sudo),
)
manifest(
str(harvest_dir),
args.out,
fqdn=args.fqdn,
jinjaturtle=_jt_mode(args),
)
# For usability (when --harvest wasn't provided), print the harvest path.
if not args.harvest:
print(str(harvest_dir / "state.json"))
else:
if sops_fps:
out_file = _resolve_sops_out_file(args.harvest, hint="local")
with tempfile.TemporaryDirectory(prefix="enroll-harvest-") as td:
tmp_bundle = Path(td) / "bundle"
tmp_bundle.mkdir(parents=True, exist_ok=True)
try:
os.chmod(tmp_bundle, 0o700)
except OSError:
pass
harvest(str(tmp_bundle), dangerous=bool(args.dangerous))
_encrypt_harvest_dir_to_sops(
tmp_bundle, out_file, list(sops_fps)
)
manifest(
str(out_file),
args.out,
fqdn=args.fqdn,
jinjaturtle=_jt_mode(args),
sops_fingerprints=list(sops_fps),
)
if not args.harvest:
print(str(out_file))
else:
if not args.harvest:
raise SystemExit(
"error: --harvest is required unless --remote-host is set"
)
harvest(args.harvest, dangerous=bool(args.dangerous))
manifest(
args.harvest,
args.out,
fqdn=args.fqdn,
jinjaturtle=_jt_mode(args),
)
except SopsError as e:
raise SystemExit(f"error: {e}")