upgrade default node image #334
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[APPROVALNOTIFIER] This PR is APPROVED This pull-request has been approved by: BenTheElder The full list of commands accepted by this bot can be found here. The pull request process is described here
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cncf-cla: yes
pkg/cluster/config/defaults/image.go
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| @@ -18,4 +18,4 @@ limitations under the License. | |||
| package defaults | |||
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| // Image is the default for the Config.Image field, aka the default node image. | |||
| const Image = "kindest/node:v1.13.3@sha256:d1af504f20f3450ccb7aed63b67ec61c156f9ed3e8b0d973b3dee3c95991753c" | |||
| const Image = "kindest/node:v1.13.3" | |||
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I'm extremely on the fence about pinning the image fully or not.
It's still possible to use a pinned image via --image, otoh being reproducible-ish out of the box is nice.
Any change we push to these images is arguably breaking, pinning avoids that 🤔
OTOH this allows us to push things like docker security fixes.
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i don't think pinning the image to the k8s patch release cycle is a good idea.
complex version schemas is a solution for that:
kindest/node:v1.13.3-0.1.0
where 0.1.0 is the kind version.
thus with a kind bump the image can be bumped too on security fixes.
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kindest/node:v1.13.3-0.1.0 is no different (in fact more complex and weaker) than putting the hash
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at this point IMO users should not depend on the specific contents of the node image, and kind itself handles this kind of image change fine.
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it's defenitely weaker than the hash but stronger than having the k8s release only.
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kubeadm itself seems to pin to stable-1?
https://github.com/kubernetes/kubernetes/blob/b96378c058c99180b84efb259ec56e5ee31941ae/cmd/kubeadm/app/apis/kubeadm/v1beta1/defaults.go#L36:2
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yes, it does. but we are bound to the k8s release cycle.
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AFAICT the stable-1 is not bound though, it's looked up from the published releases?
that would be like if we used kindest/node:stable-1
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i'm going to add the hash for now and we can revisit this at the meeting or something. I think it's worth considering futher before we get too many releases in.
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AFAICT the
stable-1is not bound though, it's looked up from the published releases?
it tends to resolve to latest stable - e.g. currently 1.13.x
not binding to the k8s release allows you to push immediate fixes and not wait on a upstream PATCH bump, to bump an image for a docker fix. but either way is fine, as PATCH releases get pushed relatively often.
/lgtm
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* Bump version to 0.3.3 * Add snapshot versions * Add dependencies
picks up #331
/hold