On 23.11.2021 12:29, arekm wrote:
commit 428b9c73df902f6232312751a0c38060cf3cdbea
Author: Arkadiusz Miśkiewicz
Date: Tue Nov 23 11:25:06 2021 +0100
Rel 4; make cronie restart itself when PAM problems happen.
On glibc/pam upgrades cronie can be very unhappy:
Feb 9 13:52:01 firma /usr/sbin/crond[6592]: (root) FAILED
to authorize user with PAM (Moduł jest nieznany)
because crond is inked with old stuff and can't dlopen newer pam modules.
Exact cause (like which symbol) is not known because crond
is using PAM_SILENT flag which silences most of pam error messages.
Add hacky script to make crond self cure (this problem happened way
too many times for me).
cronie.spec | 15 ++-
1 file changed, 14 insertions(+), 1 deletion(-)
---
diff --git a/cronie.spec b/cronie.spec
index 2255574..c7b5da6 100644
--- a/cronie.spec
+++ b/cronie.spec
@@ -18,7 +18,7 @@ Summary: Cron daemon for executing programs at set times
Summary(pl.UTF-8):Demon cron do uruchamiania programów o zadanym czasie
Name: cronie
Version: 1.5.7
-Release: 2
+Release: 4
License: MIT and BSD and GPL v2
Group:Daemons
Source0:
https://github.com/cronie-crond/cronie/releases/download/%{name}-%{version}/%{name}-%{version}.tar.gz
@@ -166,6 +166,18 @@ cat > $RPM_BUILD_ROOT%{_sysconfdir}/cron/cron.deny << 'EOF'
# NOT allowed to use the local cron daemon
EOF
+cat > $RPM_BUILD_ROOT%{_sysconfdir}/cron.daily/check-crond << 'EOF'
+#!/bin/sh
+
+# ugly and limited hack. make cronie restart itself
+if [ -x /bin/awk -a -x /bin/grep -a -f /var/log/cron ]; then
-a is bashism, use [ cond1 ] && [ cond2 ] && cond3
+ LC_ALL=C /bin/awk -v d="$(LC_ALL=C date "+%b %e")" ' $1 " " $2 ~ d'
/var/log/cron \
+ | /bin/grep -qE "PAM.*(Modu. jest nieznany|Module is unknown)" \
why full paths? cron resets PATH to sane value, and can be overriden if
wanted
+ && echo "crond is failing on PAM, restarting (
https://github.com/cronie-crond/cronie/issues/87 )" >&2 \
+ && /sbin/service crond restart
+fi
+EOF
+
why not implement execve(argv) in crond itself?
and so far we've added %trigger to glibc, etc to restart cron daemons
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