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monit: Wait for pending state changes for reloads

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@mpeters reported that we're not checking that the named service is
actually there after a reload. And that sometimes monit doesn't actually
return anything at all after a reload.
This commit is contained in:
Björn Andersson 2015-06-05 05:39:53 +08:00 committed by Matt Clay
parent 469bf9ebd0
commit 757c9bffee
1 changed files with 30 additions and 24 deletions
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54
lib/ansible/modules/extras/monitoring/monit.py
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@ -69,14 +69,6 @@ def main():
MONIT = module.get_bin_path('monit', True)
if state == 'reloaded':
if module.check_mode:
module.exit_json(changed=True)
rc, out, err = module.run_command('%s reload' % MONIT)
if rc != 0:
module.fail_json(msg='monit reload failed', stdout=out, stderr=err)
module.exit_json(changed=True, name=name, state=state)
def status():
"""Return the status of the process in monit, or the empty string if not present."""
rc, out, err = module.run_command('%s summary' % MONIT, check_rc=True)
@ -95,8 +87,35 @@ def main():
module.run_command('%s %s %s' % (MONIT, command, name), check_rc=True)
return status()
process_status = status()
present = process_status != ''
def wait_for_monit_to_stop_pending(sleep_time=1):
"""Fails this run if there is no status or it's pending/initalizing for max_retries"""
running_status = status()
retries = 0
while running_status == '' or 'pending' in running_status or 'initializing' in running_status:
if retries >= max_retries:
module.fail_json(
msg='too many retries waiting for empty, "pending", or "initiating" status to go away ({0})'.format(
running_status
),
retries=retries,
state=state
)
sleep(sleep_time)
retries += 1
running_status = status()
if state == 'reloaded':
if module.check_mode:
module.exit_json(changed=True)
rc, out, err = module.run_command('%s reload' % MONIT)
if rc != 0:
module.fail_json(msg='monit reload failed', stdout=out, stderr=err)
wait_for_monit_to_stop_pending()
module.exit_json(changed=True, name=name, state=state)
present = status() != ''
if not present and not state == 'present':
module.fail_json(msg='%s process not presently configured with monit' % name, name=name, state=state)
@ -112,20 +131,7 @@ def main():
module.exit_json(changed=True, name=name, state=state)
module.exit_json(changed=False, name=name, state=state)
running_status = status()
retries = 0
while 'pending' in running_status or 'initializing' in running_status:
if retries >= max_retries:
module.fail_json(
msg='too many retries waiting for "pending" or "initiating" to go away (%s)' % running_status,
retries=retries,
state=state
)
sleep(1)
retries += 1
running_status = status()
wait_for_monit_to_stop_pending()
running = 'running' in status()
if running and state in ['started', 'monitored']: