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).

diff --git a/cronie.spec b/cronie.spec
index 22555748ae18905ccbbd399676b0f1321df8edac..c7b5da6ce59f87b655d8a46b250c69b7331871db 100644 (file)
--- 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 > $RPM_BUILD_ROOT%{_sysconfdir}/cron.daily/check-crond << 'EOF'
+#!/bin/sh
+
+# ugly and limited hack. make cronie restart itself
+if [ -x /bin/awk -a -x /bin/grep -a -f /var/log/cron ]; then
+       LC_ALL=C /bin/awk -v d="$(LC_ALL=C date "+%b %e")" ' $1 " " $2 ~ d' /var/log/cron \
+               | /bin/grep -qE "PAM.*(Modu. jest nieznany|Module is unknown)" \
+               && echo "crond is failing on PAM, restarting ( https://github.com/cronie-crond/cronie/issues/87 )" >&2 \
+               && /sbin/service crond restart
+fi
+EOF
+
 %clean
 rm -rf $RPM_BUILD_ROOT
 
@@ -221,6 +233,7 @@ chmod 754 /etc/rc.d/init.d/crond
 %doc AUTHORS ChangeLog README
 %attr(750,root,crontab) %dir /etc/cron
 %attr(750,root,crontab) %dir /etc/cron.daily
+%attr(750,root,root) /etc/cron.daily/check-crond
 %attr(750,root,crontab) %dir /etc/cron.hourly
 %attr(750,root,crontab) %dir /etc/cron.monthly
 %attr(750,root,crontab) %dir /etc/cron.weekly