checkpointer: ignore Affinity within podspec #1009
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Kubernetes 1.12.x introduced new logic for Affinity [1]. In addition to
new logic, the Pod contains a default affinity. The new default affinity
gets serialized into the checkpoint file, and the 1.12.x kubelet does
not restore the pod due to the affinity.
This PR removes the affinity from the spec and documents that affinity's
are not supported.
```
"affinity": {
"nodeAffinity": {
"requiredDuringSchedulingIgnoredDuringExecution": {
"nodeSelectorTerms": [
{
"matchExpressions": null
}
]
}
}
},
```
[1] kubernetes/kubernetes#68173
[2] https://github.com/kubernetes/kubernetes/blob/e39b510726113581c6f6a9c2db1753d794aa9cce/pkg/controller/daemon/util/daemonset_util.go#L183-L196
k8s-ci-robot
added
cncf-cla: yes
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@aaronlevy needs another lgtm /cc @dghubble |
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coreosbot run e2e checkpointer |
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Because this is changing checkpointer code, the normal e2e tests are not explicitly testing the new functionality (the cluster is launched with existing checkpointer pod) https://github.com/kubernetes-incubator/bootkube/blob/master/pkg/asset/images.go#L12. The checkpointer tests will build a new checkpointer image, then use that in the e2e tests. |
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coreosbot run e2e checkpointer |
k8s-ci-robot
added
size/S
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/lgtm |
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coreosbot run e2e checkpointer |
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coreosbot run e2e checkpointer |
* checkpointer test will have a modified asset file
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coreosbot run e2e checkpointer |
3 similar comments
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coreosbot run e2e checkpointer |
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coreosbot run e2e checkpointer |
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coreosbot run e2e checkpointer |
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all tests are passing {bootkube-e2e-calico, bootkube-e2e-flannel, and e2e w/ checkpointer} |
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@dghubble mind lgtm again? |
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/lgtm |
Kubernetes 1.12.x introduced new logic for Affinity [1]. In addition to
new logic, the Pod contains a default affinity. The new default affinity
gets serialized into the checkpoint file, and the 1.12.x kubelet does
not restore the pod due to the affinity.
This PR removes the affinity from the spec and documents that affinity's
are not supported.
[1] kubernetes/kubernetes#68173
[2] https://github.com/kubernetes/kubernetes/blob/e39b510726113581c6f6a9c2db1753d794aa9cce/pkg/controller/daemon/util/daemonset_util.go#L183-L196