----- Original Message ----- > Hi, > > On 11/15/2011 11:39 PM, Ayal Baron wrote: > > > > <snip> > > >> If you want to talk about convergence, the discussion should start > >> around > >> collecting requirements. We can then figure out if the two sets > >> of > >> requirements > >> are strictly overlapping or if there are any requirements that are > >> fundamentally > >> in opposition. > > > > Agreed. > > > > So vdsm guest agent goal is to ease administration of VMs. This is > > not saying much as it is quite broad so I will list what is > > provided today and some things we need to add: > > > > Assistance in VM life-cycle: > > "desktopShutdown" - Shuts the VM down gracefully from within the > > guest. > > "quiesce" - does not exist today. This is definitely a requirement > > for us. > > > > SSO support for spice sessions (automatically login into guest OS > > using provided credentials): > > "desktopLock" - lock current session, used when spice session gets > > disconnected / before giving a new user access to spice session > > "desktopLogin" > > "desktopLogoff" > > In addition, guest reports relevant info (currently active user, > > session state) > > > > Monitoring and inventory: > > currently agent sends info periodically, which includes a lot of > > info which should probably be broken down and served upon request. > > Info includes - > > - memory usage > > - NICs info (name, hw, inet, inet6) > > - appslist (list of installed apps / rpms) > > - OS type > > - guest hostname > > - internal file systems info (path, fs type, total space, used > > space) > > > > <snip> > > If we're gathering requirements and trying to come up with one agent > to rule them all, don't forget
I don't think we're trying to come up with one agent to rule them all, just avoid duplication of efforts if most of what the 2 agents are doing overlaps. I think we can safely say that seeing as oVirt is KVM centric, ovirt-guest-agent wants to leverage qemu/kvm to the fullest which aligns with what qemu-guest-agent is doing. However, ovirt-guest-agent is required to do a lot more, so we need to see if and how we resolve this. > about VDI and the Spice agent. Currently the spice agent handles the > following: > > 1) Paravirtual mouse (needed to get mouse coordinates right with > multi monitor setups) > 2) Send client monitor configuration, so that the guest os can adjust > its resolution > (and number and place of monitors) to match the client > 3) Copy and paste in a platform neutral manner, if anyone wishes to > add this to another agent > please, please contact us (me) first. This is easy to get wrong > (we went through 2 revisions > of the protocol for this). > 4) Allow the client to request the guest to tone down the bling (for > low spec clients) > > Notes: > 1) All of these are client <-> guest communication, rather then the > host <-> guest communication > which the other agents seem to focus on. > > 2) Getting copy paste right requires a system level guest agent > process as well as a per user > session agent process. Neither qemu-guest-agent nor ovirt-guest-agent is aligned with doing any of the above, so I'm not sure there is any justification in uniting the spice agent with the rest. > > Regards, > > Hans >
