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(Feature accepted on Feb 06 FESCo meeting) |
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= systemd Calendar Timers = | = systemd Calendar Timers = | ||
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== Detailed Description == | == Detailed Description == | ||
In timer units you may now use OnCalendar= to express a calendar time event. The syntax is quite flexible and in some ways more powerful than cron's (and certainly more readable). For a more detailed discussion of the syntax [http://www.freedesktop.org/software/systemd/man/systemd.time.html | In timer units you may now use OnCalendar= to express a calendar time event. The syntax is quite flexible and in some ways more powerful than cron's (and certainly more readable). For a more detailed discussion of the syntax [http://www.freedesktop.org/software/systemd/man/systemd.time.html see the documentation]. | ||
== Benefit to Fedora == | == Benefit to Fedora == | ||
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== Release Notes == | == Release Notes == | ||
It should be enough to just announce availability of this feature, plus a paste from the Summary section of this feature page, plus maybe a reference to the the docs for this. | |||
== Comments and Discussion == | == Comments and Discussion == | ||
* See [[Talk:Features/SystemdCalendarTimers]] | * See [[Talk:Features/SystemdCalendarTimers]] | ||
[[Category: | [[Category:FeatureAcceptedF19]] | ||
Latest revision as of 14:36, 8 February 2013
systemd Calendar Timers
Summary
systemd has supported timer units for activating services based on time since its inception. However, it only could schedule services based on monotonic time events (i.e. "every 5 minutes"). With this feature in place systemd also supports calendar time events (i.e. "every monday morning 6:00 am", or "at midnight on every 1st, 2nd, 3rd of each month if that's saturday or sunday").
Owner
- Name: Lennart Poettering
- Email: lennart at poettering dot net
Current status
- Targeted release: Fedora 19
- Last updated: 2012-01-17
- Percentage of completion: 100%
Detailed Description
In timer units you may now use OnCalendar= to express a calendar time event. The syntax is quite flexible and in some ways more powerful than cron's (and certainly more readable). For a more detailed discussion of the syntax see the documentation.
Benefit to Fedora
A powerful way to trigger systemd services on calendar time.
Scope
Only needs changes in systemd upstream.
How To Test
Write a calendar time event unit and run it. See if it activates!
User Experience
Nothing really changes. It's a feature for people who want to schedule services based on calendar time events, nobody else will even notice.
Dependencies
Nothing.
Contingency Plan
Nothing. It doesn't affect anybody who doesn't use this.
Documentation
- http://www.freedesktop.org/software/systemd/man/systemd.time.html
- http://www.freedesktop.org/software/systemd/man/systemd.timer.html
Release Notes
It should be enough to just announce availability of this feature, plus a paste from the Summary section of this feature page, plus maybe a reference to the the docs for this.