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kevinveenbirkenbachandClaude Opus 5
7e1d336869
e41be38cb replaced the ansible-vault subprocess with in-process VaultLib and imported ansible at module level. That pulled it into the chain cli.administration.deploy.development -> credentials_generator -> utils/manager/inventory.py -> utils/handler/vault.py, which the CI runner host resolves without ansible installed. Before that commit the module imported only subprocess and yaml, so the import cost nothing.
test_ci_host_dependencies names both remedies: declare the dependency in [project.dependencies], or make the import lazy. Lazy is right here because ansible serves one branch of this module and the declaration would be paid for on every CI job. _vault is already a cached_property, so the import runs once per handler instance and only when something actually encrypts.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
72 lines
2.5 KiB
Python
72 lines
2.5 KiB
Python
from __future__ import annotations
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from functools import cached_property
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from typing import TYPE_CHECKING, Any
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import yaml
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from yaml.dumper import SafeDumper
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from yaml.loader import SafeLoader
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if TYPE_CHECKING:
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from ansible.parsing.vault import VaultLib
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class VaultScalar(str):
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"""A subclass of str to represent vault-encrypted strings."""
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__slots__ = ()
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def _vault_constructor(loader, node):
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"""Load a !vault block as a VaultScalar so the tag survives a round-trip."""
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return VaultScalar(node.value)
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def _vault_representer(dumper, data):
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"""Custom representer to dump VaultScalar as literal blocks."""
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return dumper.represent_scalar("!vault", data, style="|")
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SafeLoader.add_constructor("!vault", _vault_constructor)
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getattr(yaml, "CSafeLoader", SafeLoader).add_constructor("!vault", _vault_constructor)
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SafeDumper.add_representer(VaultScalar, _vault_representer)
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class VaultHandler:
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def __init__(self, vault_password_file: str):
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self.vault_password_file = vault_password_file
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@cached_property
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def _vault(self) -> VaultLib:
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from ansible.parsing.dataloader import DataLoader
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from ansible.parsing.vault import FileVaultSecret, VaultLib
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secret = FileVaultSecret(filename=self.vault_password_file, loader=DataLoader())
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secret.load()
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return VaultLib([("default", secret)])
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def encrypt_string(self, value: str, name: str) -> str:
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"""Return the ``name: !vault |`` snippet as ``ansible-vault`` lays it out.
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Args:
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value: plaintext to encrypt.
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name: key the snippet is emitted under.
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"""
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body = self._vault.encrypt(value).decode()
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indented = "\n".join(f" {line}" for line in body.splitlines())
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return f"{name}: !vault |\n{indented}\n"
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def encrypt_leaves(self, branch: dict[str, Any], vault_pw: str):
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"""Recursively encrypt all leaves (plain text values) under the credentials section."""
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for key, value in branch.items():
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if isinstance(value, dict):
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self.encrypt_leaves(value, vault_pw)
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elif isinstance(value, str) and not value.lstrip().startswith(
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"$ANSIBLE_VAULT"
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):
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snippet = self.encrypt_string(value, key)
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lines = snippet.splitlines()
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indent = len(lines[1]) - len(lines[1].lstrip())
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body = "\n".join(line[indent:] for line in lines[1:])
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branch[key] = VaultScalar(body)
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