Fails with a service using suexec functionality (starts but exit code 0) #189
Description
Given this apache 2.4 systemd configuration (httpd-2.4.62-1.el9_5.2.x86_64):
[Unit]
Description=The Apache HTTP Server
Wants=httpd-init.service
After=network.target remote-fs.target nss-lookup.target httpd-init.service
Documentation=man:httpd.service(8)
[Service]
Type=notify
Environment=LANG=C
ExecStart=/usr/sbin/httpd $OPTIONS -DFOREGROUND
ExecReload=/usr/sbin/httpd $OPTIONS -k graceful
# Send SIGWINCH for graceful stop
KillSignal=SIGWINCH
KillMode=mixed
PrivateTmp=true
OOMPolicy=continue
[Install]
WantedBy=multi-user.target
httpd service is started but MainPID has changed so future starts can't find the pid:
[root@4589d57e6516 /]# /usr/bin/systemctl -vvv start httpd
INFO:systemctl:EXEC BEGIN /usr/bin/systemctl start httpd --system
DEBUG:systemctl:======= systemctl.py start httpd
DEBUG:systemctl:found 226 sysd files
DEBUG:systemctl:found 0 sysv files
INFO:systemctl:system is offline
DEBUG:systemctl:'/usr/lib/systemd/system/httpd.service' no --user mode >> accept
DEBUG:systemctl: start unit httpd.service => '/usr/lib/systemd/system/httpd.service'
DEBUG:systemctl:extra-vars []
DEBUG:systemctl:can not expand $OPTIONS
DEBUG:systemctl:can not expand $OPTIONS
INFO:systemctl:httpd.service: Service private directory option is ignored: PrivateTmp=yes
DEBUG:systemctl:use NOTIFY_SOCKET=/run/systemd/notify.httpd.service
DEBUG:systemctl:ExecStart[0]: /usr/sbin/httpd $OPTIONS -DFOREGROUND
DEBUG:systemctl:can not expand $OPTIONS
INFO:systemctl:notify start '/usr/sbin/httpd' '-DFOREGROUND'
INFO:systemctl:notify started PID 7682
DEBUG:systemctl:writing to /run/httpd.service.status
MainPID=7682
INFO:systemctl:notify stopped PID 7682 (OK) <->
DEBUG:systemctl:okay, waiting on socket for 90.0s
INFO:systemctl:wait $NOTIFY_SOCKET, timeout 90.0 (lapse 3)
INFO:systemctl:seen dead PID 7682
INFO:systemctl:notify start done 7682
WARNING:systemctl:notify start not active
workaround
mv /usr/sbin/suexec /usr/sbin/suexec.disabled
works:
[root@4589d57e6516 /]# /usr/bin/systemctl -vvv start httpd
INFO:systemctl:EXEC BEGIN /usr/bin/systemctl start httpd --system
DEBUG:systemctl:======= systemctl.py start httpd
DEBUG:systemctl:found 226 sysd files
DEBUG:systemctl:found 0 sysv files
INFO:systemctl:system is offline
DEBUG:systemctl:'/usr/lib/systemd/system/httpd.service' no --user mode >> accept
DEBUG:systemctl: start unit httpd.service => '/usr/lib/systemd/system/httpd.service'
DEBUG:systemctl:extra-vars []
DEBUG:systemctl:can not expand $OPTIONS
DEBUG:systemctl:can not expand $OPTIONS
INFO:systemctl:httpd.service: Service private directory option is ignored: PrivateTmp=yes
DEBUG:systemctl:use NOTIFY_SOCKET=/run/systemd/notify.httpd.service
DEBUG:systemctl:ExecStart[0]: /usr/sbin/httpd $OPTIONS -DFOREGROUND
DEBUG:systemctl:can not expand $OPTIONS
INFO:systemctl:notify start '/usr/sbin/httpd' '-DFOREGROUND'
INFO:systemctl:notify started PID 7688
DEBUG:systemctl:writing to /run/httpd.service.status
MainPID=7688
DEBUG:systemctl:okay, waiting on socket for 90.0s
INFO:systemctl:wait $NOTIFY_SOCKET, timeout 90.0 (lapse 3)
DEBUG:systemctl:read_notify_socket(44):RELOADING=1|STATUS=Reading configuration...|
DEBUG:systemctl:seen notify --- :STATUS=Reading configuration...
DEBUG:systemctl:read_notify_socket(44):RELOADING=1|STATUS=Reading configuration...|
DEBUG:systemctl:seen notify --- :STATUS=Reading configuration...
DEBUG:systemctl:read_notify_socket(37):READY=1|STATUS=Configuration loaded.|
DEBUG:systemctl:seen notify --- :READY=1
DEBUG:systemctl:seen notify --- :STATUS=Configuration loaded.
DEBUG:systemctl:read_notify_socket(58):READY=1|STATUS=Started, listening on: port 80|MAINPID=7688
DEBUG:systemctl:seen notify -2 :READY=1
DEBUG:systemctl:seen notify -2 :STATUS=Started, listening on: port 80
DEBUG:systemctl:seen notify -2 :MAINPID=7688
DEBUG:systemctl:notify = {'RELOADING': '1', 'STATUS': 'Started, listening on: port 80', 'READY': '1', 'MAINPID': '7688'}
INFO:systemctl:notify start done 7688
and the processes are indeed present:
]# ps -eaf | grep 7688
root 7688 1 0 12:07 ? 00:00:00 /usr/sbin/httpd -DFOREGROUND
apache 7689 7688 0 12:07 ? 00:00:00 /usr/sbin/httpd -DFOREGROUND
apache 7690 7688 0 12:07 ? 00:00:00 /usr/sbin/httpd -DFOREGROUND
apache 7691 7688 0 12:07 ? 00:00:00 /usr/sbin/httpd -DFOREGROUND
apache 7692 7688 0 12:07 ? 00:00:00 /usr/sbin/httpd -DFOREGROUND