rootful: reserve the ports on the host #4526
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When running in rootful mode, reserve the ports on the host so that the ports appears on /proc/net/tcp. This also prevents other processes from binding to the same ports. Note that in rootless mode this is not necessary because RootlessKit's port driver already reserves the ports. See lima-vm/lima issue 4085 Similar patterns are used in Docker and Podman. - moby/moby PR 48132 - containers/podman PR 23446 Signed-off-by: Akihiro Suda <[email protected]>
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This was referenced Sep 29, 2025
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When running in rootful mode, reserve the ports on the host so that the ports appears on /proc/net/tcp.
This also prevents other processes from binding to the same ports.
Note that in rootless mode this is not necessary because RootlessKit's port driver already reserves the ports.
See:
Similar patterns are used in Docker and Podman.