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由 Daniel P. Berrange 提交于
The reboot() syscall is allowed by new kernels for LXC containers. The LXC controller can detect whether a reboot was requested (instead of a normal shutdown) by looking at the "init" process exit status. If a reboot was triggered, the exit status will record SIGHUP as the kill reason. The LXC controller has cleared all its capabilities, and the veth network devices will no longer exist at this time. Thus it cannot restart the container init process itself. Instead it emits an event which is picked up by the LXC driver in libvirtd. This will then re-create the container, using the same configuration as it was previously running with (ie it will not activate 'newDef'). Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>
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