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diff --git a/slides.pdfpc b/slides.pdfpc index c4b4bf5e9fc7..d73ac6e855d5 100644 --- a/slides.pdfpc +++ b/slides.pdfpc @@ -34,3 +34,21 @@ Lennart Poettering of Pulseaudio fame and Kay Sievers decided to implement a new ### 7 Systemd's design goals ### 8 +No more init scripts with opaque effects -> services are clearly defined units +Unit dependencies -> systemd can figure out what can be started in parallel +Process supervision: Unit can be configured in many ways, e.g. always restart, only restart on success etc +Service logs: We'll talk more about this later +### 9 +Units are the core component of systemd that users deal with. They define services and everything else that systemd needs to start and manage. +Note that all these are the names of the respective man page on a system with systemd installed +Types: +systemd.service - processes controlled by systemd +systemd.target - equivalent to "runlevels", grouping of units for synchronisation +systemd.timer - more powerful replacement of cron that starts other units +systemd.path - systemd equvialent of inotify, watches files/folders -> launches units +systemd.socket - expose local IPC or network sockets, launch units on connections +systemd.device - trigger units when certain devices are connected +systemd.mount - systemd equivalent of fstab entries +systemd.swap - like mount +systemd.slice - unit groups for resource management purposes +... and a few more specialised ones \ No newline at end of file |