~/talk

Userland TCP/IP stack for external container connectivity

Talkat FOSDEM 2022 · on Sunday, 2022-02-06· at 16:10· D.containers· [networking]

speaker

name:Christophe Fergeau
links:none on file

resources

video:https://video.fosdem.org/2022/D.containers/container_userlan_tcpip.mp4
slides:https://fosdem.org/2022/schedule/event/container_userlan_tcpip/attachments/slides/5094/export/events/attachments/container_userlan_tcpip/slides/5094/CodeReady_Containers_user_mode_networking_using_gVisor.pdf

summary

Explains CodeReady Containers’ user-space TCP/IP stack built on gVisor to give external connectivity to containers running via a VM on macOS or Windows. Describes the networking gap that motivated a userland stack and the concrete mechanism used to route container → VM → host traffic for podman-only usage.

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