On 22/09/14 09:52, Jan Cholasta wrote:
Dne 19.9.2014 v 17:23 Rob Crittenden napsal(a):
Martin Basti wrote:
Hello list,
I need to use systemd mask/unmask in ipa service.
But as Honza wrote:
"IMO masking/unmasking should be part of disabling/enabling a
service in
systemd. AFAIK in most other init systems when you disable a
service, it
has the same effect as masking the service in systemd - it will
never be
started until it is enabled/unmasked again. "
So my questions is, should be masking part of disabling service in
systemd, to be platform independent?
Or should we add mask/unmask methods to
ipaplatform.base.services.PlatformService where mask is alias for
disable?
Martin^2
After reading http://0pointer.de/blog/projects/three-levels-of-off I
disagree that disabling in SysV is the same as masking in systemd,
though I guess it depends on the meaning of disable. According to that
page chkconfig off <service> is equivalent to systemctl disable
<service>.service, which is what we do now AFAIR.
I don't think that's entirely correct. They are equivalent
mechanically (a symlink is added/removed when a service is
enabled/disabled), but effectively they are different. AFAIK in SysV,
services can be started either manually or automatically on boot and
if you disable a service the only way it will start is when you do it
manually. In systemd, there are more ways services can be started
automatically (socket, D-Bus, etc.) and disabling a service will only
disable automatic start *on boot*, but it can still be started
automatically, which contrasts with what SysV does.
Why do you need to mask a service, e.g. render it completely
unstartable?
rob
Let's continue with discussion,
1) should we add general method mask/unmask to ipaplatform, or
2) make mask/unmask part of enabling/disabling in systemd
Martin^2
--
Martin Basti
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