rootless: support Bottlerocket OS #3697
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AkihiroSuda
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Port https://github.com/moby/moby/blob/v23.0.1/daemon/oci_linux.go#L430-L460 > // Get the set of mount flags that are set on the mount that contains the given > // path and are locked by CL_UNPRIVILEGED. This is necessary to ensure that > // bind-mounting "with options" will not fail with user namespaces, due to > // kernel restrictions that require user namespace mounts to preserve > // CL_UNPRIVILEGED locked flags. Fix issue 3098 Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
…ces=N`) Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
tonistiigi
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Mar 11, 2023
arnaldo2792
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Mar 11, 2023
| @@ -24,6 +24,12 @@ spec: | |||
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| See also the [example manifests](#Kubernetes). | |||
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| ### Bottlerocket OS | |||
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| Needs to run `sysctl -w user.max_user_namespaces=N` (N=positive integer, like 63359) on the host nodes. | |||
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Running this command in the Bottlerocket hosts isn't the recommended approach, I can update the docs to mention how to set up max_user_namespaces in the “Bottlerocket way”, if that's OK with you all.
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Fix #3098
Tested on Bottlerocket OS 1.12.0 (aws-k8s-1.25), kernel 5.15.79 (
eksctl --version=1.25 -node-ami-family=Bottlerocketusing eksctl 0.132.0)