Re: [ovirt-devel] discussion: URI format for libvirt metadata

From: "Kobi Ianko" <kobi(a)redhat.com&gt; To: devel(a)ovirt.org Cc: "Dan Kenigsberg" <danken(a)redhat.com&gt;, "Doron Fediuck" <dfediuck(a)redhat.com&gt; Sent: Wednesday, May 28, 2014 2:47:07 PM Subject: Re: [ovirt-devel] discussion: URI format for libvirt metadata The URL that we will go with is "http://ovirt.org/vm/tune". The address is self explainable, it will contain vm tunable parameters and refer to a web page explaining the parameters. 10x. > > ----- Forwarded Message ----- > > > From: "Dan Kenigsberg" <danken(a)redhat.com&gt; > > > To: "Kobi Ianko" <kobi(a)redhat.com&gt; > > > Cc: devel(a)ovirt.org > > > Sent: Wednesday, May 28, 2014 2:16:43 AM > > > Subject: Re: [ovirt-devel] discussion: URI format for libvirt metadata > > > > > > On Tue, May 27, 2014 at 01:10:22PM -0400, Kobi Ianko wrote: > > > > Hi All, > > > > In the upcoming changes we have decided to use the Metadata section > > > > of > > > > libvirt to store temporary data. (see > > > > http://libvirt.org/html/libvirt-libvirt.html#virDomainGetMetadata) > > > > For that the libvirt api forces us to specify a valid URI. > > > > > > > > I have suggested using the following pattern: > > > > "http://ovirt.org/param/param_name" > > > > > > > > pro: it's very simple and straightforward. > > > > con: it leads to nowhere and I don't think we should create a web > > > > reference > > > > for each param. > > > > > > > > I would like to hear other suggestions from you all > > > > > > According to > > > http://libvirt.org/html/libvirt-libvirt.html#virDomainSetMetadata > > > """ > > > ... VIR_DOMAIN_METADATA_ELEMENT @metadata must be well-formed XML > > > belonging > > > to namespace defined by @uri with local name @key. > > > """ > > > so there is no doubt that we must have a properly-defined namespace on > > > the > > > URI. > > > > > > Beyond that, lacking a wiki page explaining the the key, means that a > > > reviewer knows nothing about what is this param, what are its valid > > > values, or how oVirt is using it. > > > > > > Nothing makes sure that no one else in oVirt decides to use the > > > same param for something else. > > > > > > It is important to explain that the params that you suggest are going > > > to > > > be used for communication beween Vdsm and MoM, and that this param is a > > > vm-specific entity. http://ovirt.org/param/name seems like a parameter > > > of ovirt at large, not the CPU of a particular VM. > > > > > > Regards, > > > Dan. > > > _______________________________________________ > > > Devel mailing list > > > Devel(a)ovirt.org > > > http://lists.ovirt.org/mailman/listinfo/devel > > > > > >