Fix config example

[coignetp]

What does this PR do?

queues and directory are optional if postqueue: true in the init_config, but they don't have a default value.

integrations-core/postfix/datadog_checks/postfix/postfix.py

Lines 95 to 108 in 3e7f81b

	def _get_config(self, instance):
	directory = instance.get('directory', None)
	postfix_config_dir = instance.get('config_directory', None)
	queues = instance.get('queues', None)
	tags = instance.get('tags', [])
	if not self.init_config.get('postqueue', False):
	self.log.debug('postqueue : get_config')
	self.log.debug('postqueue: %s', self.init_config.get('postqueue', False))
	if not queues or not directory:
	raise Exception('using sudo: missing required yaml config entry')
	else:
	if not postfix_config_dir:
	raise Exception('using postqueue: missing required yaml "config_directory" entry')

Motivation

QA #10051

Additional Notes

Review checklist (to be filled by reviewers)

• Feature or bugfix MUST have appropriate tests (unit, integration, e2e)
• PR title must be written as a CHANGELOG entry (see why)
• Files changes must correspond to the primary purpose of the PR as described in the title (small unrelated changes should have their own PR)
• PR must have changelog/ and integration/ labels attached

[codecov]

Codecov Report

Merging #10337 (b8bda3b) into master (3e7f81b) will not change coverage.
The diff coverage is n/a.

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postfix	88.04% <ø> (ø)

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[hithwen]

Not for the release but this needs a custom validator in validators.py and another one for config_directory