move backupwiki to wiki/ and add mwjobrunner

wiki/mwjobrunner

@@ -0,0 +1,15 @@
+#!/bin/bash
+
+MW_INSTALL_PATH=/usr/share/webapps/mediawiki
+RUNJOBS=$MW_INSTALL_PATH/maintenance/runJobs.php
+while true; do
+  # Job types that need to be run ASAP no matter how many of them are in the queue
+  # Those jobs should be very "cheap" to run
+  php $RUNJOBS -q --type="enotifNotify"
+  # Everything else, limit the number of jobs on each batch
+  # The --wait parameter will pause the execution here until new jobs are added,
+  # to avoid running the loop without anything to do
+  php $RUNJOBS -q --wait --maxjobs=20
+  # Wait some seconds to let the CPU do other things, like handling web requests, etc
+  sleep 10
+done

wiki/mwjobrunner.service

@@ -0,0 +1,25 @@
+[Unit]
+Description=MediaWiki Job runner
+After=php-fpm.service postgresql.service
+
+[Service]
+ExecStart=/usr/local/bin/mwjobrunner
+Type=exec
+Nice=10
+User=http
+OOMScoreAdjust=200
+Restart=on-failure
+
+# from php-fpm.service
+PrivateTmp=true
+ProtectSystem=full
+PrivateDevices=true
+ProtectKernelModules=true
+ProtectKernelTunables=true
+ProtectControlGroups=true
+RestrictRealtime=true
+RestrictAddressFamilies=AF_INET AF_INET6 AF_NETLINK AF_UNIX
+RestrictNamespaces=true
+
+[Install]
+WantedBy=multi-user.target