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master ... pass

Author SHA1 Message Date
ynerant 1bd2a43ccd
Use pass to load become and vault passwords
All checks were successful
continuous-integration/drone/push Build is passing
Signed-off-by: Yohann D'ANELLO <ynerant@crans.org>
2021-03-04 03:19:02 +01:00
6 changed files with 121 additions and 181 deletions

1
.gitignore vendored
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@ -1,3 +1,4 @@
*.retry
tmp
ldap-password.txt
__pycache__

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@ -2,6 +2,10 @@
[defaults]
# Explicitely redefined some defaults to make play execution work
roles_path = ./roles
vars_plugins = ./vars_plugins
# Do not create .retry files
retry_files_enabled = False
@ -25,8 +29,8 @@ timeout = 60
# Use sudo to get priviledge access
become = True
# Ask for password
become_ask_pass = True
# Use custom become plugin
become_ask_pass = False
[diff]

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@ -1,179 +0,0 @@
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6
vars_plugins/pass.ini Normal file
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@ -0,0 +1,6 @@
[pass]
# password_store_dir=/home/ynerant/.password-store
# aurore_password_store_submodule=aurore
[pass_become]
all=aurore-root

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@ -0,0 +1,6 @@
[pass]
# password_store_dir=/home/me/.password-store
# aurore_password_store_submodule=aurore
[pass_become]
# all=aurore-root-password

102
vars_plugins/pass.py Normal file
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@ -0,0 +1,102 @@
#!/usr/bin/env python
from functools import lru_cache
from getpass import getpass
import os
from pathlib import Path
import subprocess
import sys
from ansible.module_utils.six.moves import configparser
from ansible.plugins.vars import BaseVarsPlugin
DOCUMENTATION = """
module: pass
vars: vault
version_added: 2.9
short_description: Load vault passwords from pass
description:
- Works exactly as a vault, loading variables from pass.
- Decrypts the YAML file `ansible_vault` from aurorepasswords.
- Loads the secret variables.
- Makes use of data caching in order to avoid calling aurorepasswords multiple times.
- Uses the local gpg key from the user running ansible on the Control node.
"""
class VarsModule(BaseVarsPlugin):
@staticmethod
@lru_cache
def decrypt_password(name, aurore_submodule=False):
"""
Passwords are decrypted from the local password store, then are cached.
By that way, we don't decrypt these passwords everytime.
"""
# Load config
config = configparser.ConfigParser()
config.read(os.path.join(os.path.dirname(os.path.realpath(__file__)), 'pass.ini'))
password_store = Path(config.get('pass', 'password_store_dir',
fallback=os.getenv('PASSWORD_STORE_DIR', Path.home() / '.password-store')))
if aurore_submodule:
password_store /= config.get('pass', 'aurore_password_store_submodule',
fallback=os.getenv('AURORE_PASSWORD_STORE_SUBMODULE', 'aurore'))
full_command = ['gpg', '-d', password_store / f'{name}.gpg']
proc = subprocess.run(full_command, capture_output=True, close_fds=True)
clear_text = proc.stdout.decode('UTF-8')
sys.stderr.write(proc.stderr.decode('UTF-8'))
return clear_text
@staticmethod
@lru_cache
def become_password(entity):
"""
Query the become password that should be used for the given entity.
If entity is the whole group that has no default password,
the become password will be prompted.
The configuration should be given in pass.ini, in the `pass_become`
group. You have only to write `group=pass-filename`.
"""
# Load config
config = configparser.ConfigParser()
config.read(os.path.join(os.path.dirname(os.path.realpath(__file__)), 'pass.ini'))
if config.has_option('pass_become', entity.get_name()):
return VarsModule.decrypt_password(
config.get('pass_become', entity.get_name())).split('\n')[0]
if entity.get_name() == "all":
return getpass("BECOME password: ", stream=None)
return None
def get_vars(self, loader, path, entities):
"""
Get all vars for entities, called by Ansible.
loader: Ansible's DataLoader.
path: Current play's playbook directory.
entities: Host or group names pertinent to the variables needed.
"""
# VarsModule objects are called every time you need host vars, per host,
# and per group the host is part of.
# It is about 6 times per host per task in current state
# of Ansible Aurore configuration.
# It is way to much.
# So we cache the data into the DataLoader (see parsing/DataLoader).
passwords = {}
for entity in entities:
# Load vault passwords
if entity.get_name() == 'all':
passwords.update(
loader.load(VarsModule.decrypt_password('ansible_vault', True)))
# Load become password
become_password = VarsModule.become_password(entity)
if become_password is not None:
passwords['ansible_become_password'] = become_password
return passwords