Dustin C. Hatch
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Jenkins jobs that build container images in user namespaces need access to `/dev/fuse`, which is provided by the [fuse-device-plugin][0]. This plugin runs as a DaemonSet, which updates the status of the node it's running on when it starts to indicate that the FUSE device is available. When scaling up from zero nodes, Cluster Autoscaler has no way to know that this will occur, and therefore cannot determine that scaling up the ASG will create a node with the required resources. Thus, the ASG needs a tag to inform CA that the nodes it creates will indeed have the resources and scaling it up will allow the pod to be scheduled. Although this feature of CA was added in 1.14, it apparently got broken at some point and no longer works in 1.22. It works again in 1.26, though. [0]: https://github.com/kuberenetes-learning-group/fuse-device-plugin/tree/master