Goal -- pure systemd init system without monit or similar.
Aleš Nosek's model Controlling a Multi-Service Application with systemd
For apache 2.4 servers, use mod_systemd
For tomcat, follow last example in Wrapping Apache Tomcat in many pointless extra layers
| [Unit] | |
| Description=Apache httpd 2.4 with mod_wsgi | |
| # When systemd stops or restarts the app.service, the action is propagated to this unit | |
| PartOf=app.service | |
| # Start this unit after the app.service start | |
| After=dsc.service | |
| [Service] | |
| # https://httpd.apache.org/docs/trunk/mod/mod_systemd.html | |
| Type=notify | |
| User=dsc | |
| Group=dsc | |
| SyslogIdentifier=httpd-back | |
| ExecStart=/apps/dsc/servers/monit/bin/monit-wrapper.bash /usr/sbin/httpd -d /apps/dsc/servers/back -D FOREGROUND -k start | |
| ExecReload=/apps/dsc/servers/monit/bin/monit-wrapper.bash /usr/sbin/httpd -d /apps/dsc/servers/back -D FOREGROUND -k graceful | |
| KillMode=mixed | |
| [Install] | |
| # This unit should start when app.service is starting | |
| WantedBy=dsc.service |
| [Unit] | |
| Description=Apache httpd 2.4 with mod_proxy | |
| # When systemd stops or restarts the app.service, the action is propagated to this unit | |
| PartOf=app.service | |
| # Start this unit after the app.service start | |
| After=dsc.service | |
| [Service] | |
| # https://httpd.apache.org/docs/trunk/mod/mod_systemd.html | |
| Type=notify | |
| User=dsc | |
| Group=dsc | |
| SyslogIdentifier=httpd-front | |
| ExecStart=/apps/dsc/servers/monit/bin/monit-wrapper.bash /usr/sbin/httpd -d /apps/dsc/servers/front -D FOREGROUND -k start | |
| ExecReload=/apps/dsc/servers/monit/bin/monit-wrapper.bash /usr/sbin/httpd -d /apps/dsc/servers/front -D FOREGROUND -k graceful | |
| KillMode=mixed | |
| [Install] | |
| # This unit should start when app.service is starting | |
| WantedBy=dsc.service |
| [Unit] | |
| Description=Apache Tomcat j2ee server | |
| # When systemd stops or restarts the app.service, the action is propagated to this unit | |
| PartOf=app.service | |
| # Start this unit after the app.service start | |
| After=dsc.service | |
| [Service] | |
| # https://jdebp.eu/FGA/systemd-house-of-horror/tomcat.html | |
| User=dsc | |
| Group=dsc | |
| SyslogIdentifier=tomcat | |
| ExecStart=/apps/dsc/servers/monit/bin/monit-wrapper.bash /apps/dsc/java/tomcat/bin/catalina.sh run | |
| [Install] | |
| # This unit should start when app.service is starting | |
| WantedBy=dsc.service |
| [Unit] | |
| Description=Online Archive of California (DSC) | |
| After=network.target remote-fs.target nss-lookup.target | |
| [Service] | |
| # The dummy program will exit | |
| # http://alesnosek.com/blog/2016/12/04/controlling-a-multi-service-application-with-systemd/ | |
| Type=oneshot | |
| # Execute a dummy program | |
| ExecStart=/bin/true | |
| # This service shall be considered active after start | |
| RemainAfterExit=yes | |
| [Install] | |
| # Components of this application should be started at boot time | |
| WantedBy=multi-user.target |