Force a CNI Delete on refreshing containers #4086
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[APPROVALNOTIFIER] This PR is APPROVED This pull-request has been approved by: mheon The full list of commands accepted by this bot can be found here. The pull request process is described here
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lgtm, there will be a perf hit on this though ... i don't know what the implications are and what lead us to calling this code so maybe it wont matter. |
vrothberg
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Sep 24, 2019
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Ahh. Windows compilation. |
CNI expects that a DELETE be run before re-creating container networks. If a reboot occurs quickly enough that containers can't stop and clean up, that DELETE never happens, and Podman currently wipes the old network info and thinks the state has been entirely cleared. Unfortunately, that may not be the case on the CNI side. Some things - like IP address reservations - may not have been cleared. To solve this, manually re-run CNI Delete on refresh. If the container has already been deleted this seems harmless. If not, it should clear lingering state. Fixes: containers#3759 Signed-off-by: Matthew Heon <[email protected]>
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CI is green now |
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/lgtm |
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locked - please file new issue/PR
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CNI expects that a DELETE be run before re-creating container networks. If a reboot occurs quickly enough that containers can't stop and clean up, that DELETE never happens, and Podman currently wipes the old network info and thinks the state has been entirely cleared. Unfortunately, that may not be the case on the CNI side. Some things - like IP address reservations - may not have been cleared.
To solve this, manually re-run CNI Delete on refresh. If the container has already been deleted this seems harmless. If not, it should clear lingering state.
Fixes: #3759