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into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<https://www.gnu.org/licenses/why-not-lgpl.html>.

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# Enroll
**enroll** inspects a Linux machine (currently Debian-only) and generates Ansible roles for things it finds running on the machine.
It aims to be **optimistic and noninteractive**:
- Detects packages that have been installed
- Detects Debian package ownership of `/etc` files using dpkg’s local database.
- Captures config that has **changed from packaged defaults** (dpkg conffile hashes + package md5sums when available).
- Also captures **service-relevant custom/unowned files** under `/etc/<service>/...` (e.g. drop-in config includes).
- Defensively excludes likely secrets (path denylist + content sniff + size caps).
- Captures non-system users that exist on the system, and their SSH public keys
## Install (Poetry)
```bash
poetry install
poetry run enroll --help
```
## Usage
On the host (root recommended):
### 1. Generate a bundle of state/information about the host
```bash
sudo poetry run enroll harvest --out /tmp/enroll-bundle
```
### 2. Generate Ansible manifests (roles/playbook) from that bundle
```bash
sudo poetry run enroll manifest --bundle /tmp/enroll-bundle --out /tmp/enroll-ansible
```
### Alternatively, do both steps in one shot:
```bash
sudo poetry run enroll export --bundle /tmp/enroll-bundle --out /tmp/enroll-ansible
```
Then run:
```bash
ansible-playbook -i "localhost," -c local /tmp/enroll-ansible/playbook.yml
```
## Notes / Safety
- enroll **skips** common sensitive locations like `/etc/ssl/private/*`, `/etc/ssh/ssh_host_*`, and files that look like private keys/tokens.
- It also skips symlinks, binary-ish files, and large files by default.
- Review each generated role’s README before committing it anywhere.
- It only stores the raw config files. If you want to turn these into Jinja2 templates with dynamic inventory, see my other tool https://git.mig5.net/mig5/jinjaturtle .
## Troubleshooting
- Run as root for the most complete harvest (`sudo ...`).

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__all__ = []

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from .cli import main
if __name__ == "__main__":
main()

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from __future__ import annotations
import os
from dataclasses import dataclass
from typing import Dict, List, Optional, Set, Tuple
@dataclass
class UserRecord:
name: str
uid: int
gid: int
gecos: str
home: str
shell: str
primary_group: str
supplementary_groups: List[str]
ssh_files: List[str]
def parse_login_defs(path: str = "/etc/login.defs") -> Dict[str, int]:
vals: Dict[str, int] = {}
try:
with open(path, "r", encoding="utf-8", errors="replace") as f:
for line in f:
line = line.strip()
if not line or line.startswith("#"):
continue
parts = line.split()
if len(parts) >= 2 and parts[0] in {"UID_MIN", "UID_MAX", "SYS_UID_MIN", "SYS_UID_MAX"}:
try:
vals[parts[0]] = int(parts[1])
except ValueError:
continue
except FileNotFoundError:
pass
return vals
def parse_passwd(path: str = "/etc/passwd") -> List[Tuple[str, int, int, str, str, str]]:
rows: List[Tuple[str, int, int, str, str, str]] = []
with open(path, "r", encoding="utf-8", errors="replace") as f:
for line in f:
line = line.rstrip("\n")
if not line or line.startswith("#"):
continue
parts = line.split(":")
if len(parts) < 7:
continue
name = parts[0]
try:
uid = int(parts[2])
gid = int(parts[3])
except ValueError:
continue
gecos = parts[4]
home = parts[5]
shell = parts[6]
rows.append((name, uid, gid, gecos, home, shell))
return rows
def parse_group(path: str = "/etc/group") -> Tuple[Dict[int, str], Dict[str, int], Dict[str, Set[str]]]:
gid_to_name: Dict[int, str] = {}
name_to_gid: Dict[str, int] = {}
members: Dict[str, Set[str]] = {}
with open(path, "r", encoding="utf-8", errors="replace") as f:
for line in f:
line = line.rstrip("\n")
if not line or line.startswith("#"):
continue
parts = line.split(":")
if len(parts) < 4:
continue
name = parts[0]
try:
gid = int(parts[2])
except ValueError:
continue
mem = set([m for m in parts[3].split(",") if m])
gid_to_name[gid] = name
name_to_gid[name] = gid
members[name] = mem
return gid_to_name, name_to_gid, members
def is_human_user(uid: int, shell: str, uid_min: int) -> bool:
if uid < uid_min:
return False
shell = (shell or "").strip()
if shell in {"/usr/sbin/nologin", "/usr/bin/nologin", "/bin/false"}:
return False
return True
def find_user_ssh_files(home: str) -> List[str]:
sshdir = os.path.join(home, ".ssh")
out: List[str] = []
if not os.path.isdir(sshdir):
return out
ak = os.path.join(sshdir, "authorized_keys")
if os.path.isfile(ak) and not os.path.islink(ak):
out.append(ak)
return sorted(set(out))
def collect_non_system_users() -> List[UserRecord]:
defs = parse_login_defs()
uid_min = defs.get("UID_MIN", 1000)
passwd_rows = parse_passwd()
gid_to_name, _, group_members = parse_group()
users: List[UserRecord] = []
for name, uid, gid, gecos, home, shell in passwd_rows:
if name in {"root", "nobody"}:
continue
if not is_human_user(uid, shell, uid_min):
continue
primary_group = gid_to_name.get(gid, str(gid))
supp: List[str] = []
for gname, mem in group_members.items():
if name in mem and gname != primary_group:
supp.append(gname)
supp = sorted(set(supp))
ssh_files = find_user_ssh_files(home) if home and home.startswith("/") else []
users.append(UserRecord(
name=name,
uid=uid,
gid=gid,
gecos=gecos,
home=home,
shell=shell,
primary_group=primary_group,
supplementary_groups=supp,
ssh_files=ssh_files,
))
return users

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from __future__ import annotations
import argparse
from .harvest import harvest
from .manifest import manifest
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 into a bundle")
h.add_argument("--out", required=True, help="Bundle output directory")
r = sub.add_parser("manifest", help="Render Ansible roles from a harvested bundle")
r.add_argument("--bundle", required=True, help="Path to the bundle directory created by the harvest command")
r.add_argument("--out", required=True, help="Output directory for generated roles/playbook Ansible manifest")
e = sub.add_parser("export", help="Harvest then manifest in one shot")
e.add_argument("--bundle", required=True, help="Path to the directory to place the bundle in")
e.add_argument("--out", required=True, help="Output directory for generated roles/playbook Ansible manifest")
args = ap.parse_args()
if args.cmd == "harvest":
path = harvest(args.out)
print(path)
elif args.cmd == "manifest":
manifest(args.bundle, args.out)
elif args.cmd == "export":
harvest(args.bundle)
manifest(args.bundle, args.out)

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from __future__ import annotations
import glob
import hashlib
import os
import subprocess
from typing import Dict, List, Optional, Set, Tuple
def _run(cmd: list[str]) -> str:
p = subprocess.run(cmd, check=False, text=True, capture_output=True)
if p.returncode != 0:
raise RuntimeError(f"Command failed: {cmd}\n{p.stderr}")
return p.stdout
def dpkg_owner(path: str) -> Optional[str]:
p = subprocess.run(["dpkg", "-S", path], text=True, capture_output=True)
if p.returncode != 0:
return None
left = p.stdout.split(":", 1)[0].strip()
pkg = left.split(":", 1)[0].strip()
return pkg or None
def list_manual_packages() -> List[str]:
"""Return packages marked as manually installed (apt-mark showmanual)."""
p = subprocess.run(["apt-mark", "showmanual"], text=True, capture_output=True)
if p.returncode != 0:
return []
pkgs: List[str] = []
for line in (p.stdout or "").splitlines():
line = line.strip()
if not line or line.startswith("#"):
continue
pkgs.append(line)
return sorted(set(pkgs))
def build_dpkg_etc_index(
info_dir: str = "/var/lib/dpkg/info",
) -> Tuple[Set[str], Dict[str, str], Dict[str, Set[str]], Dict[str, List[str]]]:
"""
Returns:
owned_etc_paths: set of /etc paths owned by dpkg
etc_owner_map: /etc/path -> pkg
topdir_to_pkgs: "nginx" -> {"nginx-common", ...} based on /etc/<topdir>/...
pkg_to_etc_paths: pkg -> list of /etc paths it installs
"""
owned: Set[str] = set()
owner: Dict[str, str] = {}
topdir_to_pkgs: Dict[str, Set[str]] = {}
pkg_to_etc: Dict[str, List[str]] = {}
for list_path in glob.glob(os.path.join(info_dir, "*.list")):
pkg_raw = os.path.basename(list_path)[:-5] # strip ".list"
pkg = pkg_raw.split(":", 1)[0] # drop arch suffix if present
etc_paths: List[str] = []
try:
with open(list_path, "r", encoding="utf-8", errors="replace") as f:
for line in f:
p = line.rstrip("\n")
if not p.startswith("/etc/"):
continue
owned.add(p)
owner.setdefault(p, pkg)
etc_paths.append(p)
parts = p.split("/", 3)
if len(parts) >= 3 and parts[2]:
top = parts[2]
topdir_to_pkgs.setdefault(top, set()).add(pkg)
except FileNotFoundError:
continue
if etc_paths:
pkg_to_etc.setdefault(pkg, []).extend(etc_paths)
for k, v in list(pkg_to_etc.items()):
pkg_to_etc[k] = sorted(set(v))
return owned, owner, topdir_to_pkgs, pkg_to_etc
def parse_status_conffiles(status_path: str = "/var/lib/dpkg/status") -> Dict[str, Dict[str, str]]:
"""
pkg -> { "/etc/foo": md5hex, ... } based on dpkg status "Conffiles" field.
This md5 is the packaged baseline for the conffile.
"""
out: Dict[str, Dict[str, str]] = {}
cur: Dict[str, str] = {}
key: Optional[str] = None
def flush() -> None:
pkg = cur.get("Package")
if not pkg:
return
raw = cur.get("Conffiles")
if not raw:
return
m: Dict[str, str] = {}
for line in raw.splitlines():
line = line.strip()
if not line:
continue
parts = line.split()
if len(parts) >= 2 and parts[0].startswith("/"):
m[parts[0]] = parts[1]
if m:
out[pkg] = m
with open(status_path, "r", encoding="utf-8", errors="replace") as f:
for line in f:
if line.strip() == "":
if cur:
flush()
cur = {}
key = None
continue
if line[0].isspace() and key:
cur[key] += line
else:
if ":" in line:
k, v = line.split(":", 1)
key = k
cur[key] = v.lstrip()
if cur:
flush()
return out
def read_pkg_md5sums(pkg: str) -> Dict[str, str]:
"""
relpath -> md5hex from /var/lib/dpkg/info/<pkg>.md5sums
relpath has no leading slash, e.g. 'etc/nginx/nginx.conf'
"""
path = f"/var/lib/dpkg/info/{pkg}.md5sums"
if not os.path.exists(path):
return {}
m: Dict[str, str] = {}
with open(path, "r", encoding="utf-8", errors="replace") as f:
for line in f:
line = line.strip()
if not line:
continue
md5, rel = line.split(None, 1)
m[rel.strip()] = md5.strip()
return m
def file_md5(path: str) -> str:
h = hashlib.md5()
with open(path, "rb") as f:
for chunk in iter(lambda: f.read(1024 * 1024), b""):
h.update(chunk)
return h.hexdigest()
def stat_triplet(path: str) -> Tuple[str, str, str]:
st = os.stat(path, follow_symlinks=True)
mode = oct(st.st_mode & 0o777)[2:].zfill(4)
import pwd, grp
try:
owner = pwd.getpwuid(st.st_uid).pw_name
except KeyError:
owner = str(st.st_uid)
try:
group = grp.getgrgid(st.st_gid).gr_name
except KeyError:
group = str(st.st_gid)
return owner, group, mode

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from __future__ import annotations
import glob
import json
import os
import shutil
from dataclasses import dataclass, asdict
from typing import Dict, List, Optional, Set
from .systemd import list_enabled_services, get_unit_info, UnitQueryError
from .debian import (
build_dpkg_etc_index,
dpkg_owner,
file_md5,
list_manual_packages,
parse_status_conffiles,
read_pkg_md5sums,
stat_triplet,
)
from .secrets import SecretPolicy
from .accounts import collect_non_system_users, UserRecord
@dataclass
class ManagedFile:
path: str
src_rel: str
owner: str
group: str
mode: str
reason: str
@dataclass
class ExcludedFile:
path: str
reason: str
@dataclass
class ServiceSnapshot:
unit: str
role_name: str
packages: List[str]
managed_files: List[ManagedFile]
excluded: List[ExcludedFile]
notes: List[str]
@dataclass
class PackageSnapshot:
package: str
role_name: str
managed_files: List[ManagedFile]
excluded: List[ExcludedFile]
notes: List[str]
@dataclass
class UsersSnapshot:
role_name: str
users: List[dict]
managed_files: List[ManagedFile]
excluded: List[ExcludedFile]
notes: List[str]
ALLOWED_UNOWNED_EXTS = {
".conf", ".cfg", ".ini", ".cnf", ".yaml", ".yml", ".json", ".toml",
".rules", ".service", ".socket", ".timer", ".target", ".path", ".mount",
".network", ".netdev", ".link",
"", # allow extensionless (common in /etc/default and /etc/init.d)
}
MAX_UNOWNED_FILES_PER_ROLE = 400
def _safe_name(s: str) -> str:
out: List[str] = []
for ch in s:
out.append(ch if ch.isalnum() or ch in ("_", "-") else "_")
return "".join(out).replace("-", "_")
def _role_name_from_unit(unit: str) -> str:
base = unit.removesuffix(".service")
return _safe_name(base)
def _role_name_from_pkg(pkg: str) -> str:
return "pkg_" + _safe_name(pkg)
def _copy_into_bundle(bundle_dir: str, role_name: str, abs_path: str, src_rel: str) -> None:
dst = os.path.join(bundle_dir, "artifacts", role_name, src_rel)
os.makedirs(os.path.dirname(dst), exist_ok=True)
shutil.copy2(abs_path, dst)
def _is_confish(path: str) -> bool:
base = os.path.basename(path)
_, ext = os.path.splitext(base)
return ext in ALLOWED_UNOWNED_EXTS
def _hint_names(unit: str, pkgs: Set[str]) -> Set[str]:
base = unit.removesuffix(".service")
hints = {base}
if "@" in base:
hints.add(base.split("@", 1)[0])
hints |= set(pkgs)
hints |= {h.split(".", 1)[0] for h in list(hints) if "." in h}
return {h for h in hints if h}
def _add_pkgs_from_etc_topdirs(hints: Set[str], topdir_to_pkgs: Dict[str, Set[str]], pkgs: Set[str]) -> None:
for h in hints:
for p in topdir_to_pkgs.get(h, set()):
pkgs.add(p)
def _maybe_add_specific_paths(hints: Set[str]) -> List[str]:
paths: List[str] = []
for h in hints:
paths.extend([
f"/etc/default/{h}",
f"/etc/init.d/{h}",
f"/etc/sysctl.d/{h}.conf",
f"/etc/logrotate.d/{h}",
])
return paths
def _scan_unowned_under_roots(roots: List[str], owned_etc: Set[str], limit: int = MAX_UNOWNED_FILES_PER_ROLE) -> List[str]:
found: List[str] = []
for root in roots:
if not os.path.isdir(root):
continue
for dirpath, _, filenames in os.walk(root):
if len(found) >= limit:
return found
for fn in filenames:
if len(found) >= limit:
return found
p = os.path.join(dirpath, fn)
if not p.startswith("/etc/"):
continue
if p in owned_etc:
continue
if not os.path.isfile(p) or os.path.islink(p):
continue
if not _is_confish(p):
continue
found.append(p)
return found
def _topdirs_for_package(pkg: str, pkg_to_etc_paths: Dict[str, List[str]]) -> Set[str]:
topdirs: Set[str] = set()
for path in pkg_to_etc_paths.get(pkg, []):
parts = path.split("/", 3)
if len(parts) >= 3 and parts[1] == "etc" and parts[2]:
topdirs.add(parts[2])
return topdirs
def harvest(bundle_dir: str, policy: Optional[SecretPolicy] = None) -> str:
policy = policy or SecretPolicy()
os.makedirs(bundle_dir, exist_ok=True)
if hasattr(os, "geteuid") and os.geteuid() != 0:
print("Warning: not running as root; harvest may miss files or metadata.", flush=True)
owned_etc, etc_owner_map, topdir_to_pkgs, pkg_to_etc_paths = build_dpkg_etc_index()
conffiles_by_pkg = parse_status_conffiles()
# -------------------------
# Service roles
# -------------------------
service_snaps: List[ServiceSnapshot] = []
for unit in list_enabled_services():
role = _role_name_from_unit(unit)
try:
ui = get_unit_info(unit)
except UnitQueryError as e:
service_snaps.append(ServiceSnapshot(
unit=unit,
role_name=role,
packages=[],
managed_files=[],
excluded=[],
notes=[str(e)],
))
continue
pkgs: Set[str] = set()
notes: List[str] = []
excluded: List[ExcludedFile] = []
managed: List[ManagedFile] = []
candidates: Dict[str, str] = {}
if ui.fragment_path:
p = dpkg_owner(ui.fragment_path)
if p:
pkgs.add(p)
for exe in ui.exec_paths:
p = dpkg_owner(exe)
if p:
pkgs.add(p)
for pth in ui.dropin_paths:
if pth.startswith("/etc/"):
candidates[pth] = "systemd_dropin"
for ef in ui.env_files:
ef = ef.lstrip("-")
if any(ch in ef for ch in "*?["):
for g in glob.glob(ef):
if g.startswith("/etc/") and os.path.isfile(g):
candidates[g] = "systemd_envfile"
else:
if ef.startswith("/etc/") and os.path.isfile(ef):
candidates[ef] = "systemd_envfile"
hints = _hint_names(unit, pkgs)
_add_pkgs_from_etc_topdirs(hints, topdir_to_pkgs, pkgs)
for sp in _maybe_add_specific_paths(hints):
if not os.path.exists(sp):
continue
if sp in etc_owner_map:
pkgs.add(etc_owner_map[sp])
else:
candidates.setdefault(sp, "custom_specific_path")
for pkg in sorted(pkgs):
conff = conffiles_by_pkg.get(pkg, {})
md5sums = read_pkg_md5sums(pkg)
for path in pkg_to_etc_paths.get(pkg, []):
if not os.path.isfile(path) or os.path.islink(path):
continue
if path in conff:
try:
current = file_md5(path)
except OSError:
continue
if current != conff[path]:
candidates.setdefault(path, "modified_conffile")
continue
rel = path.lstrip("/")
baseline = md5sums.get(rel)
if baseline:
try:
current = file_md5(path)
except OSError:
continue
if current != baseline:
candidates.setdefault(path, "modified_packaged_file")
roots: List[str] = []
for h in hints:
roots.extend([f"/etc/{h}", f"/etc/{h}.d"])
for pth in _scan_unowned_under_roots(roots, owned_etc):
candidates.setdefault(pth, "custom_unowned")
if not pkgs and not candidates:
notes.append("No packages or /etc candidates detected (unexpected for enabled service).")
for path, reason in sorted(candidates.items()):
deny = policy.deny_reason(path)
if deny:
excluded.append(ExcludedFile(path=path, reason=deny))
continue
try:
owner, group, mode = stat_triplet(path)
except OSError:
excluded.append(ExcludedFile(path=path, reason="unreadable"))
continue
src_rel = path.lstrip("/")
try:
_copy_into_bundle(bundle_dir, role, path, src_rel)
except OSError:
excluded.append(ExcludedFile(path=path, reason="unreadable"))
continue
managed.append(ManagedFile(
path=path,
src_rel=src_rel,
owner=owner,
group=group,
mode=mode,
reason=reason,
))
service_snaps.append(ServiceSnapshot(
unit=unit,
role_name=role,
packages=sorted(pkgs),
managed_files=managed,
excluded=excluded,
notes=notes,
))
# -------------------------
# Manual package roles
# -------------------------
manual_pkgs = list_manual_packages()
pkg_snaps: List[PackageSnapshot] = []
for pkg in manual_pkgs:
role = _role_name_from_pkg(pkg)
notes: List[str] = []
excluded: List[ExcludedFile] = []
managed: List[ManagedFile] = []
candidates: Dict[str, str] = {}
conff = conffiles_by_pkg.get(pkg, {})
md5sums = read_pkg_md5sums(pkg)
for path in pkg_to_etc_paths.get(pkg, []):
if not os.path.isfile(path) or os.path.islink(path):
continue
if path in conff:
try:
current = file_md5(path)
except OSError:
continue
if current != conff[path]:
candidates.setdefault(path, "modified_conffile")
continue
rel = path.lstrip("/")
baseline = md5sums.get(rel)
if baseline:
try:
current = file_md5(path)
except OSError:
continue
if current != baseline:
candidates.setdefault(path, "modified_packaged_file")
topdirs = _topdirs_for_package(pkg, pkg_to_etc_paths)
roots: List[str] = []
for td in sorted(topdirs):
roots.extend([f"/etc/{td}", f"/etc/{td}.d"])
roots.extend([f"/etc/default/{td}"])
roots.extend([f"/etc/init.d/{td}"])
roots.extend([f"/etc/logrotate.d/{td}"])
roots.extend([f"/etc/sysctl.d/{td}.conf"])
for pth in _scan_unowned_under_roots([r for r in roots if os.path.isdir(r)], owned_etc):
candidates.setdefault(pth, "custom_unowned")
for r in roots:
if os.path.isfile(r) and not os.path.islink(r):
if r not in owned_etc and _is_confish(r):
candidates.setdefault(r, "custom_specific_path")
for path, reason in sorted(candidates.items()):
deny = policy.deny_reason(path)
if deny:
excluded.append(ExcludedFile(path=path, reason=deny))
continue
try:
owner, group, mode = stat_triplet(path)
except OSError:
excluded.append(ExcludedFile(path=path, reason="unreadable"))
continue
src_rel = path.lstrip("/")
try:
_copy_into_bundle(bundle_dir, role, path, src_rel)
except OSError:
excluded.append(ExcludedFile(path=path, reason="unreadable"))
continue
managed.append(ManagedFile(
path=path,
src_rel=src_rel,
owner=owner,
group=group,
mode=mode,
reason=reason,
))
if not pkg_to_etc_paths.get(pkg, []) and not managed:
notes.append("No /etc files detected for this package (may be a meta package).")
pkg_snaps.append(PackageSnapshot(
package=pkg,
role_name=role,
managed_files=managed,
excluded=excluded,
notes=notes,
))
# -------------------------
# Users role (non-system users)
# -------------------------
users_notes: List[str] = []
users_excluded: List[ExcludedFile] = []
users_managed: List[ManagedFile] = []
users_list: List[dict] = []
try:
us
except Exception as e:
user_records = []
users_notes.append(f"Failed to enumerate users: {e!r}")
users_role_name = "users"
for u in user_records:
users_list.append({
"name": u.name,
"uid": u.uid,
"gid": u.gid,
"gecos": u.gecos,
"home": u.home,
"shell": u.shell,
"primary_group": u.primary_group,
"supplementary_groups": u.supplementary_groups,
})
# Copy authorized_keys
for sf in u.ssh_files:
deny = policy.deny_reason(sf)
if deny:
users_excluded.append(ExcludedFile(path=sf, reason=deny))
continue
# Force safe modes; still record current owner/group for reference.
try:
owner, group, mode = stat_triplet(sf)
except OSError:
users_excluded.append(ExcludedFile(path=sf, reason="unreadable"))
continue
src_rel = sf.lstrip("/")
try:
_copy_into_bundle(bundle_dir, users_role_name, sf, src_rel)
except OSError:
users_excluded.append(ExcludedFile(path=sf, reason="unreadable"))
continue
reason = "authorized_keys" if sf.endswith("/authorized_keys") else "ssh_public_key"
users_managed.append(ManagedFile(
path=sf,
src_rel=src_rel,
owner=owner,
group=group,
mode=mode,
reason=reason,
))
users_snapshot = UsersSnapshot(
role_name=users_role_name,
users=users_list,
managed_files=users_managed,
excluded=users_excluded,
notes=users_notes,
)
state = {
"host": {"hostname": os.uname().nodename, "os": "debian"},
"users": asdict(users_snapshot),
"services": [asdict(s) for s in service_snaps],
"manual_packages": manual_pkgs,
"package_roles": [asdict(p) for p in pkg_snaps],
}
state_path = os.path.join(bundle_dir, "state.json")
with open(state_path, "w", encoding="utf-8") as f:
json.dump(state, f, indent=2, sort_keys=True)
return state_path

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from __future__ import annotations
import json
import os
import shutil
from typing import Any, Dict, List
def _yaml_list(items: List[str], indent: int = 2) -> str:
pad = " " * indent
if not items:
return f"{pad}[]"
return "\n".join(f"{pad}- {x}" for x in items)
def _copy_artifacts(bundle_dir: str, role: str, role_dir: str) -> None:
artifacts_dir = os.path.join(bundle_dir, "artifacts", role)
if not os.path.isdir(artifacts_dir):
return
for root, _, files in os.walk(artifacts_dir):
for fn in files:
src = os.path.join(root, fn)
rel = os.path.relpath(src, artifacts_dir)
dst = os.path.join(role_dir, "files", rel)
os.makedirs(os.path.dirname(dst), exist_ok=True)
shutil.copy2(src, dst)
def _write_role_scaffold(role_dir: str) -> None:
os.makedirs(os.path.join(role_dir, "tasks"), exist_ok=True)
os.makedirs(os.path.join(role_dir, "handlers"), exist_ok=True)
os.makedirs(os.path.join(role_dir, "defaults"), exist_ok=True)
os.makedirs(os.path.join(role_dir, "meta"), exist_ok=True)
os.makedirs(os.path.join(role_dir, "files"), exist_ok=True)
def _write_playbook(path: str, roles: List[str]) -> None:
pb_lines = ["---", "- hosts: all", " become: true", " roles:"]
for r in roles:
pb_lines.append(f" - {r}")
with open(path, "w", encoding="utf-8") as f:
f.write("\n".join(pb_lines) + "\n")
def manifest(bundle_dir: str, out_dir: str) -> None:
state_path = os.path.join(bundle_dir, "state.json")
with open(state_path, "r", encoding="utf-8") as f:
state = json.load(f)
services: List[Dict[str, Any]] = state.get("services", [])
package_roles: List[Dict[str, Any]] = state.get("package_roles", [])
users_snapshot: Dict[str, Any] = state.get("users", {})
os.makedirs(out_dir, exist_ok=True)
roles_root = os.path.join(out_dir, "roles")
os.makedirs(roles_root, exist_ok=True)
manifested_users_roles: List[str] = []
manifested_service_roles: List[str] = []
manifested_pkg_roles: List[str] = []
# -------------------------
# Users role (non-system users)
# -------------------------
if users_snapshot and users_snapshot.get("users"):
role = users_snapshot.get("role_name", "users")
role_dir = os.path.join(roles_root, role)
_write_role_scaffold(role_dir)
_copy_artifacts(bundle_dir, role, role_dir)
users = users_snapshot.get("users", [])
managed_files = users_snapshot.get("managed_files", [])
excluded = users_snapshot.get("excluded", [])
notes = users_snapshot.get("notes", [])
# Build group set from users
group_names = set()
for u in users:
pg = u.get("primary_group")
if pg:
group_names.add(pg)
for g in u.get("supplementary_groups", []) or []:
group_names.add(g)
group_names = sorted(group_names)
# defaults: store users list (handy for later), but tasks are explicit for readability
defaults = """---
users_accounts:
""" + ("\n".join([f" - name: {u.get('name')}" for u in users]) + "\n")
with open(os.path.join(role_dir, "defaults", "main.yml"), "w", encoding="utf-8") as f:
f.write(defaults)
with open(os.path.join(role_dir, "meta", "main.yml"), "w", encoding="utf-8") as f:
f.write("---\ndependencies: []\n")
# tasks
lines: List[str] = ["---"]
# groups first (idempotent; safe even if already present)
for g in group_names:
lines.append(f"- name: Ensure group {g} exists")
lines.append(" ansible.builtin.group:")
lines.append(f" name: {g}")
lines.append(" state: present")
# users
for u in users:
name = u["name"]
lines.append(f"- name: Ensure user {name} exists")
lines.append(" ansible.builtin.user:")
lines.append(f" name: {name}")
lines.append(f" uid: {u.get('uid')}")
lines.append(f" group: {u.get('primary_group')}")
supp = u.get("supplementary_groups") or []
if supp:
lines.append(" groups: " + ",".join(supp))
lines.append(" append: true")
lines.append(f" home: {u.get('home')}")
lines.append(" create_home: true")
if u.get("shell"):
lines.append(f" shell: {u.get('shell')}")
if u.get("gecos"):
# quote to avoid YAML surprises
gec = u.get("gecos").replace('"', '\"')
lines.append(f' comment: "{gec}"')
lines.append(" password_lock: true")
lines.append(" state: present")
# Ensure ~/.ssh
home = u.get("home") or f"/home/{name}"
sshdir = home.rstrip("/") + "/.ssh"
lines.append(f"- name: Ensure {name} .ssh directory exists")
lines.append(" ansible.builtin.file:")
lines.append(f" path: {sshdir}")
lines.append(" state: directory")
lines.append(f" owner: {name}")
lines.append(f" group: {u.get('primary_group')}")
lines.append(" mode: '0700'")
# Copy harvested SSH public material (authorized_keys + *.pub)
for mf in managed_files:
dest = mf["path"]
src = mf["src_rel"]
# Determine file owner from dest path: /home/<user>/...
owner = None
for u in users:
if dest.startswith((u.get("home") or "").rstrip("/") + "/"):
owner = u["name"]
group = u.get("primary_group")
break
if owner is None:
# fallback: try /home/<user>/
parts = dest.split("/")
owner = parts[2] if len(parts) > 2 and parts[1] == "home" else "root"
group = owner
mode = "0600" if mf.get("reason") == "authorized_keys" else "0644"
lines.append(f"- name: Deploy {dest}")
lines.append(" ansible.builtin.copy:")
lines.append(f" src: {src}")
lines.append(f" dest: {dest}")
lines.append(f" owner: {owner}")
lines.append(f" group: {group}")
lines.append(f" mode: '{mode}'")
tasks = "\n".join(lines).rstrip() + "\n"
with open(os.path.join(role_dir, "tasks", "main.yml"), "w", encoding="utf-8") as f:
f.write(tasks)
# handlers (none needed)
with open(os.path.join(role_dir, "handlers", "main.yml"), "w", encoding="utf-8") as f:
f.write("---\n")
readme = """# users
Generated non-system user accounts and SSH public material.
## Users
""" + ("\n".join([f"- {u.get('name')} (uid {u.get('uid')})" for u in users]) or "- (none)") + """\n
## Included SSH files
""" + ("\n".join([f"- {mf.get('path')} ({mf.get('reason')})" for mf in managed_files]) or "- (none)") + """\n
## Excluded
""" + ("\n".join([f"- {e.get('path')} ({e.get('reason')})" for e in excluded]) or "- (none)") + """\n
## Notes
""" + ("\n".join([f"- {n}" for n in notes]) or "- (none)") + """\n"""
with open(os.path.join(role_dir, "README.md"), "w", encoding="utf-8") as f:
f.write(readme)
manifested_users_roles.append(role)
# -------------------------
# Service roles
# -------------------------
for svc in services:
role = svc["role_name"]
unit = svc["unit"]
pkgs = svc["packages"]
managed_files = svc["managed_files"]
role_dir = os.path.join(roles_root, role)
_write_role_scaffold(role_dir)
_copy_artifacts(bundle_dir, role, role_dir)
var_prefix = role
defaults = f"""---
{var_prefix}_packages:
{_yaml_list(pkgs, indent=2)}
"""
with open(os.path.join(role_dir, "defaults", "main.yml"), "w", encoding="utf-8") as f:
f.write(defaults)
handlers = """---
- name: systemd daemon-reload
ansible.builtin.systemd:
daemon_reload: true
- name: Restart service
ansible.builtin.service:
name: "{{ unit_name }}"
state: restarted
"""
with open(os.path.join(role_dir, "handlers", "main.yml"), "w", encoding="utf-8") as f:
f.write(handlers)
systemd_files = [mf for mf in managed_files if mf["path"].startswith("/etc/systemd/system/")]
other_files = [mf for mf in managed_files if mf not in systemd_files]
def copy_task(mf: Dict[str, Any], notify: str | None) -> str:
notify_line = f" notify: {notify}\n" if notify else ""
return f"""- name: Deploy {mf["path"]}
ansible.builtin.copy:
src: "{mf["src_rel"]}"
dest: "{mf["path"]}"
owner: "{mf["owner"]}"
group: "{mf["group"]}"
mode: "{mf["mode"]}"
{notify_line}"""
task_parts: List[str] = []
task_parts.append(f"""---
- name: Set unit name
ansible.builtin.set_fact:
unit_name: "{unit}"
- name: Install packages for {role}
ansible.builtin.apt:
name: "{{{{ {var_prefix}_packages }}}}"
state: present
update_cache: true
when: {var_prefix}_packages | length > 0
""")
if systemd_files:
for mf in systemd_files:
task_parts.append(copy_task(mf, "[systemd daemon-reload]"))
task_parts.append("""- name: Reload systemd to pick up unit changes
ansible.builtin.meta: flush_handlers
""")
for mf in other_files:
task_parts.append(copy_task(mf, "[Restart service]"))
task_parts.append(f"""- name: Ensure {unit} is enabled and running
ansible.builtin.service:
name: "{{{{ unit_name }}}}"
enabled: true
state: started
""")
tasks = "\n".join(task_parts).rstrip() + "\n"
with open(os.path.join(role_dir, "tasks", "main.yml"), "w", encoding="utf-8") as f:
f.write(tasks)
with open(os.path.join(role_dir, "meta", "main.yml"), "w", encoding="utf-8") as f:
f.write("---\ndependencies: []\n")
excluded = svc.get("excluded", [])
notes = svc.get("notes", [])
readme = f"""# {role}
Generated from `{unit}`.
## Packages
{os.linesep.join("- " + p for p in pkgs) or "- (none detected)"}
## Managed files
{os.linesep.join("- " + mf["path"] + " (" + mf["reason"] + ")" for mf in managed_files) or "- (none)"}
## Excluded (possible secrets / unsafe)
{os.linesep.join("- " + e["path"] + " (" + e["reason"] + ")" for e in excluded) or "- (none)"}
## Notes
{os.linesep.join("- " + n for n in notes) or "- (none)"}
"""
with open(os.path.join(role_dir, "README.md"), "w", encoding="utf-8") as f:
f.write(readme)
manifested_service_roles.append(role)
# -------------------------
# Manual package roles
# -------------------------
for pr in package_roles:
role = pr["role_name"]
pkg = pr["package"]
managed_files = pr["managed_files"]
role_dir = os.path.join(roles_root, role)
_write_role_scaffold(role_dir)
_copy_artifacts(bundle_dir, role, role_dir)
var_prefix = role
defaults = f"""---
{var_prefix}_packages:
- {pkg}
"""
with open(os.path.join(role_dir, "defaults", "main.yml"), "w", encoding="utf-8") as f:
f.write(defaults)
handlers = """---
- name: systemd daemon-reload
ansible.builtin.systemd:
daemon_reload: true
"""
with open(os.path.join(role_dir, "handlers", "main.yml"), "w", encoding="utf-8") as f:
f.write(handlers)
systemd_files = [mf for mf in managed_files if mf["path"].startswith("/etc/systemd/system/")]
other_files = [mf for mf in managed_files if mf not in systemd_files]
def copy_task(mf: Dict[str, Any], notify: str | None) -> str:
notify_line = f" notify: {notify}\n" if notify else ""
return f"""- name: Deploy {mf["path"]}
ansible.builtin.copy:
src: "{mf["src_rel"]}"
dest: "{mf["path"]}"
owner: "{mf["owner"]}"
group: "{mf["group"]}"
mode: "{mf["mode"]}"
{notify_line}"""
task_parts: List[str] = []
task_parts.append(f"""---
- name: Install manual package {pkg}
ansible.builtin.apt:
name: "{{{{ {var_prefix}_packages }}}}"
state: present
update_cache: true
""")
if systemd_files:
for mf in systemd_files:
task_parts.append(copy_task(mf, "[systemd daemon-reload]"))
task_parts.append("""- name: Reload systemd to pick up unit changes
ansible.builtin.meta: flush_handlers
""")
for mf in other_files:
task_parts.append(copy_task(mf, None))
tasks = "\n".join(task_parts).rstrip() + "\n"
with open(os.path.join(role_dir, "tasks", "main.yml"), "w", encoding="utf-8") as f:
f.write(tasks)
with open(os.path.join(role_dir, "meta", "main.yml"), "w", encoding="utf-8") as f:
f.write("---\ndependencies: []\n")
excluded = pr.get("excluded", [])
notes = pr.get("notes", [])
readme = f"""# {role}
Generated for manual package `{pkg}`.
## Managed files
{os.linesep.join("- " + mf["path"] + " (" + mf["reason"] + ")" for mf in managed_files) or "- (none)"}
## Excluded (possible secrets / unsafe)
{os.linesep.join("- " + e["path"] + " (" + e["reason"] + ")" for e in excluded) or "- (none)"}
## Notes
{os.linesep.join("- " + n for n in notes) or "- (none)"}
> Note: package roles do not attempt to restart or enable services automatically.
"""
with open(os.path.join(role_dir, "README.md"), "w", encoding="utf-8") as f:
f.write(readme)
manifested_pkg_roles.append(role)
# Playbooks
_write_playbook(os.path.join(out_dir, "playbook.yml"), manifested_users_roles + manifested_pkg_roles + manifested_service_roles)

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from __future__ import annotations
import fnmatch
import os
import re
from dataclasses import dataclass
from typing import Optional
DEFAULT_DENY_GLOBS = [
"/etc/ssl/private/*",
"/etc/ssh/ssh_host_*",
"/etc/shadow",
"/etc/gshadow",
"/etc/*shadow",
"/etc/letsencrypt/*",
]
SENSITIVE_CONTENT_PATTERNS = [
re.compile(br"-----BEGIN (RSA |EC |OPENSSH |)PRIVATE KEY-----"),
re.compile(br"(?i)\bpassword\s*="),
re.compile(br"(?i)\b(pass|passwd|token|secret|api[_-]?key)\b"),
]
@dataclass
class SecretPolicy:
deny_globs: list[str] = None
max_file_bytes: int = 256_000
sample_bytes: int = 64_000
def __post_init__(self) -> None:
if self.deny_globs is None:
self.deny_globs = list(DEFAULT_DENY_GLOBS)
def deny_reason(self, path: str) -> Optional[str]:
for g in self.deny_globs:
if fnmatch.fnmatch(path, g):
return "denied_path"
try:
st = os.stat(path, follow_symlinks=True)
except OSError:
return "unreadable"
if st.st_size > self.max_file_bytes:
return "too_large"
if not os.path.isfile(path) or os.path.islink(path):
return "not_regular_file"
try:
with open(path, "rb") as f:
data = f.read(min(self.sample_bytes, st.st_size))
except OSError:
return "unreadable"
if b"\x00" in data:
return "binary_like"
for pat in SENSITIVE_CONTENT_PATTERNS:
if pat.search(data):
return "sensitive_content"
return None

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from __future__ import annotations
import re
import subprocess
from dataclasses import dataclass
from typing import List, Optional
@dataclass
class UnitInfo:
name: str
fragment_path: Optional[str]
dropin_paths: List[str]
env_files: List[str]
exec_paths: List[str] # binaries from ExecStart "path=" parts
class UnitQueryError(RuntimeError):
def __init__(self, unit: str, stderr: str):
self.unit = unit
self.stderr = (stderr or "").strip()
super().__init__(f"systemctl show failed for {unit}: {self.stderr}")
def _run(cmd: list[str]) -> str:
p = subprocess.run(cmd, check=False, text=True, capture_output=True)
if p.returncode != 0:
raise RuntimeError(f"Command failed: {cmd}\n{p.stderr}")
return p.stdout
def list_enabled_services() -> List[str]:
out = _run(["systemctl", "list-unit-files", "--type=service", "--state=enabled", "--no-legend"])
units: List[str] = []
for line in out.splitlines():
parts = line.split()
if not parts:
continue
unit = parts[0].strip()
if not unit.endswith(".service"):
continue
# Skip template units like "getty@.service" which are enabled but not valid for systemctl show
if unit.endswith("@.service") or "@.service" in unit:
continue
units.append(unit)
return sorted(set(units))
def get_unit_info(unit: str) -> UnitInfo:
p = subprocess.run(
[
"systemctl", "show", unit,
"-p", "FragmentPath",
"-p", "DropInPaths",
"-p", "EnvironmentFiles",
"-p", "ExecStart",
"--no-page",
],
check=False,
text=True,
capture_output=True,
)
if p.returncode != 0:
raise UnitQueryError(unit, p.stderr)
kv: dict[str, str] = {}
for line in (p.stdout or "").splitlines():
if "=" in line:
k, v = line.split("=", 1)
kv[k] = v.strip()
fragment = kv.get("FragmentPath") or None
dropins = [pp for pp in (kv.get("DropInPaths", "") or "").split() if pp]
env_files: List[str] = []
for token in (kv.get("EnvironmentFiles", "") or "").split():
token = token.lstrip("-")
if token:
env_files.append(token)
exec_paths = re.findall(r"path=([^ ;}]+)", kv.get("ExecStart", "") or "")
return UnitInfo(
name=unit,
fragment_path=fragment,
dropin_paths=sorted(set(dropins)),
env_files=sorted(set(env_files)),
exec_paths=sorted(set(exec_paths)),
)

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# This file is automatically @generated by Poetry 1.8.3 and should not be changed by hand.
package = []
[metadata]
lock-version = "2.0"
python-versions = "^3.10"
content-hash = "53f2eabc9c26446fbcc00d348c47878e118afc2054778c3c803a0a8028af27d9"

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pyproject.toml Normal file
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[tool.poetry]
name = "enroll"
version = "0.0.1"
description = "Enroll a server's running state retrospectively into Ansible"
authors = ["Miguel Jacq <mig@mig5.net>"]
license = "GPL-3.0-or-later"
readme = "README.md"
packages = [{ include = "enroll" }]
repository = "https://git.mig5.net/mig5/enroll"
[tool.poetry.dependencies]
python = "^3.10"
[tool.poetry.scripts]
enroll = "enroll.cli:main"
[build-system]
requires = ["poetry-core>=1.8.0"]
build-backend = "poetry.core.masonry.api"