KVM: implement the HT_SM_POOL security model
In order not to complicate to much the _ExecuteKVMRuntime function withnested try/except/finally/else constructs we move the actualruncmd+check call in a separate _RunKVMCmd function.
Signed-off-by: Guido Trotter <ultrotter@google.com>...
KVM: add an instance uid file concept
If this file exists, for an instance, we release the uid containedinside back to the uid pool, at instance shutdown.
Signed-off-by: Guido Trotter <ultrotter@google.com>Reviewed-by: Iustin Pop <iustin@google.com>
KVM: move post-shutdown cleanup operations
Currently putting the cleanup just after the actual shutdown ensuresthat it never gets called, due to how the retry/shutdown cycle works.So we move those cleanups to their new dedicated place.
Add CleanupInstance hypervisor call
Currently some hypervisors (namely kvm) need to do some cleanup aftermaking sure an instance is stopped. With the moving of the retry cyclein backend those cleanups were never done. In order to solve this we adda new optional hypervisor function, CleanupInstance, which gets called...
kvm_flag hypervisor parameter
Move the runas user at execution time
Everything still works the same way, but the user is calculated eachtime we start kvm, rather than stored in the config file. This makes iteasier to implement the "pool" security model.
Extend the hypervisor API with name-only shutdown
Currently the ShutdownInstance method of the hypervisors takes a fullinstance object. However, when doing instance shutdowns from the nodeonly, we don't have a full object, just the name.
To handle this use case, we add a new ‘name’ argument to the method,...
Some epydoc fixes
Signed-off-by: Iustin Pop <iustin@google.com>Reviewed-by: Guido Trotter <ultrotter@google.com>
KVM: Check instances for actual liveness
Currently if we find a live process with the pid we saved we assume kvmis alive. What could happen, though, is that the pidfile has beenreused.
In order to avoid that we change the check to make sure, everywhere,...
KVM: improve GetInstanceInfo docstring
View revisions
Also available in: Atom