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Fully redundant LXD cluster

Talkat FOSDEM 2021 · on Sunday, 2021-02-07· at 15:35· D.containers· [linux-and-operating-systems, networking]

speaker

name:Stephane Graber
website:https://stgraber.org

resources

video:https://video.fosdem.org/2021/D.containers/containers_lxd_cluster.mp4
slides:https://fosdem.org/2021/schedule/event/containers_lxd_cluster/attachments/slides/4747/export/events/attachments/containers_lxd_cluster/slides/4747/FOSDEM_Fully_redundant_LXD_cluster.pdf

summary

Describes building a fully redundant 3-node cluster using Ceph for storage, OVN for networking, LXD for compute/management and BGP for external network redundancy, all on three identical second-hand servers hosted in a colo. Explains the hardware and design choices made to tolerate loss of a whole node or component failures, and the cost rationale versus cloud or rented dedicated servers.

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