Sagi Shnaidman 69ad943add Add ansible linter rule for set pipefail
When using pipes in ansible shell module we can miss the error
because shell is executing without pipefail by default.
This rule will check every shell module if it has "set -e pipefail"
and will fail in case if not.
It excludes tasks which have 'ignore_errors: true' or register
variables.

Change-Id: I394c72040d62dff76180aeb9d703bb8a212bcc98
2018-04-26 21:32:24 +03:00

54 lines
1.7 KiB
Python

# Copyright Red Hat, Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
from ansiblelint import AnsibleLintRule
def incorrect_task(task, cmd):
if 'shell' not in task:
return False
if 'register' in task:
return False
if task.get('ignore_errors'):
return False
if isinstance(task['shell'], dict):
args = task['shell']['cmd'].split()
else:
args = task['shell'].split()
if not set(args).isdisjoint(cmd) and 'pipefail' not in args:
return True
return False
class ShellPipefail(AnsibleLintRule):
id = 'OOOQ0001'
shortdesc = 'Shell should have a pipefail'
description = 'Shell commands should have "set -o pipefail" if using PIPE'
tags = ['shell']
cmd = ["|", "timestamper_cmd"]
def matchplay(self, file, play):
ret = []
if play.get('block') and not play.get('ignore_errors'):
block = play['block']
for task in block:
if incorrect_task(task, self.cmd):
ret.append((file, self.shortdesc))
else:
if incorrect_task(play, self.cmd):
ret.append((file, self.shortdesc))
return ret