Re: [Freeipa-devel] What is platform services' is_installed() supposed to do?
On Tue, 2012-10-23 at 12:58 +0200, Petr Viktorin wrote: > On 10/22/2012 08:48 PM, Alexander Bokovoy wrote: > > On Mon, 22 Oct 2012, Petr Viktorin wrote: > >> For example, ipapython.platform.systemd.SystemdService.is_installed(). > >> What is it supposed to do? > >> Is it checking if the package is installed, or if IPΑ's instance of > >> the service is configured and ready to use? > >> > >> There's no documentation and from the implementation it's not clear > >> either. Since people will hopefully want to port the platform code, it > >> would be good to document this. > >> > >> > >> Also, I think the current implementation is wrong, but I can't know > >> for sure. > > is_installed() supposed to handle system-specific details of software > > availability. We wanted to avoid embedding package manager-specific > > knowledge which might not be possible to use during upgrades (to avoid > > potential lock ups on parallel access to the same database in some > > package managers). > > > > So, for httpd it is correctly reporting that the service is installed. > > > > Thanks for clearing it up. > > As far as I can see, the install() method counterintuitively assumes > that is_installed()==True, and configures the system so that enable() > can be called (e.g. install() does `chkconfig --add` and enable() does > `chkconfig on`). Is that also correct? Yes, afaik. Simo. -- Simo Sorce * Red Hat, Inc * New York ___ Freeipa-devel mailing list Freeipa-devel@redhat.com https://www.redhat.com/mailman/listinfo/freeipa-devel
Re: [Freeipa-devel] What is platform services' is_installed() supposed to do?
On 10/22/2012 08:48 PM, Alexander Bokovoy wrote: On Mon, 22 Oct 2012, Petr Viktorin wrote: For example, ipapython.platform.systemd.SystemdService.is_installed(). What is it supposed to do? Is it checking if the package is installed, or if IPΑ's instance of the service is configured and ready to use? There's no documentation and from the implementation it's not clear either. Since people will hopefully want to port the platform code, it would be good to document this. Also, I think the current implementation is wrong, but I can't know for sure. is_installed() supposed to handle system-specific details of software availability. We wanted to avoid embedding package manager-specific knowledge which might not be possible to use during upgrades (to avoid potential lock ups on parallel access to the same database in some package managers). So, for httpd it is correctly reporting that the service is installed. Thanks for clearing it up. As far as I can see, the install() method counterintuitively assumes that is_installed()==True, and configures the system so that enable() can be called (e.g. install() does `chkconfig --add` and enable() does `chkconfig on`). Is that also correct? -- Petr³ ___ Freeipa-devel mailing list Freeipa-devel@redhat.com https://www.redhat.com/mailman/listinfo/freeipa-devel
Re: [Freeipa-devel] What is platform services' is_installed() supposed to do?
On Mon, 22 Oct 2012, Petr Viktorin wrote: For example, ipapython.platform.systemd.SystemdService.is_installed(). What is it supposed to do? Is it checking if the package is installed, or if IPΑ's instance of the service is configured and ready to use? There's no documentation and from the implementation it's not clear either. Since people will hopefully want to port the platform code, it would be good to document this. Also, I think the current implementation is wrong, but I can't know for sure. is_installed() supposed to handle system-specific details of software availability. We wanted to avoid embedding package manager-specific knowledge which might not be possible to use during upgrades (to avoid potential lock ups on parallel access to the same database in some package managers). So, for httpd it is correctly reporting that the service is installed. -- / Alexander Bokovoy ___ Freeipa-devel mailing list Freeipa-devel@redhat.com https://www.redhat.com/mailman/listinfo/freeipa-devel
[Freeipa-devel] What is platform services' is_installed() supposed to do?
For example, ipapython.platform.systemd.SystemdService.is_installed(). What is it supposed to do? Is it checking if the package is installed, or if IPΑ's instance of the service is configured and ready to use? There's no documentation and from the implementation it's not clear either. Since people will hopefully want to port the platform code, it would be good to document this. Also, I think the current implementation is wrong, but I can't know for sure. -- Petr³ ___ Freeipa-devel mailing list Freeipa-devel@redhat.com https://www.redhat.com/mailman/listinfo/freeipa-devel
