Kill runv-namespaced when start nonshared container fail
Kill runv-namespaced when start nonshared container fail

If namespace is not specified in config, runv will start
random named namespaced every time. If start container fails
every time in this situation, it will result in many unused
runv-namespaced process there.

Signed-off-by: Yang Hongyang <5a809ae1036bdde792d0630e096bd4ad82df82c9@easystack.cn>

gao-feng/runv,gao-feng/runv,gnawux/runv,gnawux/runv,hyperhq/runv,wrouesnel/runv,bergwolf/runv,laijs/runv,laijs/runv,bergwolf/runv,hyperhq/runv,bergwolf/runv,jinfenw/runv,feiskyer/runv,gao-feng/runv,feiskyer/runv,jinfenw/runv,jinfenw/runv,hyperhq/runv,gnawux/runv,laijs/runv,wrouesnel/runv