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nagios: Switch check_user_zephyr_mirror_liveness to run via cron.

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This check loads Django, and as such must be run as the zulip user.
Repeat the same pattern used elsewhere in nagios, of writing a state
file, which is read by `check_cron_file`.
This commit is contained in:
Alex Vandiver
2022-06-14 14:52:25 -07:00
committed by Alex Vandiver
parent 41deef40cf
commit 8bc26aab08
4 changed files with 21 additions and 4 deletions
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5
puppet/zulip_ops/files/cron.d/check_user_zephyr_mirror_liveness Normal file
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@@ -0,0 +1,5 @@
SHELL=/bin/bash
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
USER=zulip
* * * * * zulip /usr/lib/nagios/plugins/zulip_zephyr_mirror/check_user_zephyr_mirror_liveness >/dev/null

2
puppet/zulip_ops/files/nagios4/commands.cfg
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@@ -72,7 +72,7 @@ define command{
define command{ define command{
command_name check_user_zephyr_mirror_liveness command_name check_user_zephyr_mirror_liveness
command_line /usr/lib/nagios/plugins/check_by_ssh -p $ARG1$ -l nagios -t 30 -i /var/lib/nagios/.ssh/id_ed25519 -H $HOSTADDRESS$ -C '/usr/lib/nagios/plugins/zulip_zephyr_mirror/check_user_zephyr_mirror_liveness' command_line /usr/lib/nagios/plugins/check_by_ssh -p $ARG1$ -l nagios -t 30 -i /var/lib/nagios/.ssh/id_ed25519 -H $HOSTADDRESS$ -C '/usr/lib/nagios/plugins/zulip_app_frontend/check_cron_file /var/lib/nagios_state/check_user_zephyr_mirror_liveness'
} }
define command{ define command{

10
puppet/zulip_ops/files/nagios_plugins/zulip_zephyr_mirror/check_user_zephyr_mirror_liveness
View File

@@ -35,6 +35,9 @@ states: Dict[str, int] = {
"UNKNOWN": 3, "UNKNOWN": 3,
} }
state_file_path = "/var/lib/nagios_state/check_user_zephyr_mirror_liveness"
now = timezone_now()
def report(state: str, short_msg: str, too_old: AbstractSet[Any] = set()) -> None: def report(state: str, short_msg: str, too_old: AbstractSet[Any] = set()) -> None:
too_old_data = "" too_old_data = ""
@@ -46,13 +49,14 @@ def report(state: str, short_msg: str, too_old: AbstractSet[Any] = set()) -> Non
) )
for user in too_old for user in too_old
) )
print(f"{state}: {short_msg}{too_old_data}")
with open(state_file_path + ".tmp", "w") as f:
f.write(f"{now}|{states[state]}|{state}|{short_msg}{too_old_data}")
os.rename(state_file_path + ".tmp", state_file_path)
print(f"{state}: {short_msg}{too_old_data}")
exit(states[state]) exit(states[state])
now = timezone_now()
all_users = UserActivity.objects.filter( all_users = UserActivity.objects.filter(
query__in=["get_events", "/api/v1/events"], client__name="zephyr_mirror" query__in=["get_events", "/api/v1/events"], client__name="zephyr_mirror"
) )

8
puppet/zulip_ops/manifests/prod_app_frontend_once.pp
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@@ -32,4 +32,12 @@ class zulip_ops::prod_app_frontend_once {
mode => '0644', mode => '0644',
source => 'puppet:///modules/zulip_ops/cron.d/check_send_receive_time', source => 'puppet:///modules/zulip_ops/cron.d/check_send_receive_time',
} }
file { '/etc/cron.d/check_user_zephyr_mirror_liveness':
ensure => file,
owner => 'root',
group => 'root',
mode => '0644',
source => 'puppet:///modules/zulip_ops/cron.d/check_user_zephyr_mirror_liveness',
}
} }