Hi all; I've been working with RHEL5/6 for the past several years and have developed many init scripts/services which generally use lock files and PID files to allow for tracking of the service status. We are moving to RHEL7 (systemd) in the near future and I am looking for instruction or tutorials on how to effectively migrate these scripts to work with systemd.
I found https://wiki.archlinux.org/index.php/Systemd#Service_types which seems somewhat promising but it is fairly high-level. It looks like I may be able to use the 'forking' type with the 'pidfile' parameter to somewhat mimic what the scripts to today. However, I have a couple of questions: -How does systemd track whether it should be stopping a service at shutdown (analogous to the /var/lock/subsys files in SysVInit)? -Are there merits to using the notify or dbus types? If so does anyone know of a tutorial I could use to get to that point? (FYI, I'm not a developer but I learn complicated things quickly). -If the current service logs to a custom, dedicated log is there a way to get systemd to provide the same type of output that it does for the built-in system services or must I make some modifications to integrate with journald? Thanks ahead of time, Lesley Kimmel, RHCE Linux/Unix Systems Engineer
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