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From 235198b41a0932a7a190124fff5f8c1afa5d6679 Mon Sep 17 00:00:00 2001
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From: Rob Crittenden <rcritten@redhat.com>
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Date: Wed, 5 May 2021 15:35:19 -0400
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Subject: [PATCH] Add service check dependencies
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Since 389-ds is the heart of IPA there may not be a point in checking
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all dependent services. ipa-dnskeysyncd in particular doesn't like
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when it can't connect and tries to restart itself multiple times.
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Note that this currently works because the services are sorted
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alphabetically and dirsrv appears near the top. Re-ordering may be
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necessary in the future.
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I'm choosing not to add dirsrv to the other services because they
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return cleanly if it is not available.
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https://bugzilla.redhat.com/show_bug.cgi?id=1776687
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Signed-off-by: Rob Crittenden <rcritten@redhat.com>
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---
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src/ipahealthcheck/core/core.py | 20 ++++++++++++++++++++
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src/ipahealthcheck/meta/services.py | 2 ++
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2 files changed, 22 insertions(+)
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diff --git a/src/ipahealthcheck/core/core.py b/src/ipahealthcheck/core/core.py
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index a4af690..eaa2d9c 100644
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--- a/src/ipahealthcheck/core/core.py
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+++ b/src/ipahealthcheck/core/core.py
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@@ -81,6 +81,26 @@ def run_service_plugins(plugins, source, check):
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if not isinstance(plugin, ServiceCheck):
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continue
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+ # Try to save some time to not check dependent services if the
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+ # parent is down.
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+ if not set(plugin.requires).issubset(available):
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+ # A required service is not available. Either it hasn't been
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+ # checked yet or it isn't running. If not running break.
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+ running = True
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+ for result in results.results:
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+ if result.check in plugin.requires:
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+ # if not in available but in results the service failed
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+ running = False
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+ break
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+ if not running:
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+ logger.debug(
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+ 'Skipping %s:%s because %s service(s) not running',
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+ plugin.__class__.__module__,
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+ plugin.__class__.__name__,
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+ ', '.join(set(plugin.requires) - set(available))
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+ )
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+ continue
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+
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logger.debug('Calling check %s', plugin)
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for result in plugin.check():
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# always run the service checks so dependencies work
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diff --git a/src/ipahealthcheck/meta/services.py b/src/ipahealthcheck/meta/services.py
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index a987108..5d80728 100644
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--- a/src/ipahealthcheck/meta/services.py
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+++ b/src/ipahealthcheck/meta/services.py
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@@ -92,6 +92,8 @@ class ipa_dnskeysyncd(IPAServiceCheck):
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def check(self):
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self.service_name = 'ipa-dnskeysyncd'
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+ requires = ('dirsrv',)
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+
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if not bindinstance.named_conf_exists():
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return ()
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--
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2.31.1
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