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| When updating from a systemV to a systemd package, we "start-over fresh" with default start and stop policy from the package, not what the user had previously configured. systemd provides a tool, <code>systemd-sysv-convert --apply</code>, to help do this conversion if the user wants after the package is updated.
| | {{admon/note|This page used to contain a draft packaging guidelines which has now been approved.}} |
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| Scriptlets:
| | You can now find the current content at the following pages: |
| | | * [[Packaging:ScriptletSnippets#Systemd|Scriptlet snippets for systemd-enabled services]] |
| == Start over fresh ==
| | * [[Packaging:SysVInitScript#Initscripts_in_addition_to_systemd_unit_files|Scriptlets snippets for sysv initscripts in a subpackage]] |
| <pre>
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| | |
| # This is actually needed for the %triggerun script but Requires(triggerun)
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| # is not valid. We can use %post because this particular %triggerun script
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| # should fire just after this package is installed.
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| Requires(post): systemd-sysv
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| | |
| ### A sysv => systemd migration contains all of the same scriptlets as a
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| ### systemd package. These are additional scriptlets
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| # Note: the NEVR in trigger scripts should all be the version in
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| # which the package switched to systemd unit files and the comparision
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| # should be less than. Using <= the last version with the sysV script won't
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| # work for several reasons:
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| # 1) disttag is different between Fedora releases
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| # 2) An update in an old Fedora release may create a newer NEVR
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| # Note that this means an update in an older Fedora release must be NEVR
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| # lower than this. Freezing the version and release of the old package and
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| # using a number after the disttag is one way to do this. Example:
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| # httpd-1.0-1%{?dist} => httpd-1.0-1%{?dist}.1 | |
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| %triggerun -- httpd < 1.0-2
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| # Save the current service runlevel info
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| # User must manually run systemd-sysv-convert --apply httpd
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| # to migrate them to systemd targets
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| /usr/bin/systemd-sysv-convert --save httpd
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| # If the package is allowed to autostart:
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| /bin/systemctl enable apache-httpd.service >/dev/null 2>&1
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| # Run these because the SysV package being removed won't do them | |
| /sbin/chkconfig --del httpd >/dev/null 2>&1 || :
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| /bin/systemctl try-restart apache-httpd.service >/dev/null 2>&1 || :
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| /bin/systemctl daemon-reload >/dev/null 2>&1 || :
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| </pre>
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| {{admon/question||Be sure to test that the try-restart in the trigger restarts the daemon if it was running in a former sysv package and also does not enable a daemon if it wasn't running. For other test cases, see my notes on the many variants that we have to test here: https://fedoraproject.org/wiki/User:Toshio/Testing_systemd}}
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| == Subpackage with sysv initscripts ==
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| <pre>
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| # If we're shipping sysvinit scripts
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| %triggerpostun -n httpd-sysvinit -- httpd < 1.0-2
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| /sbin/chkconfig --add httpd >/dev/null 2>&1 || :
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| </pre>
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