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Update example for Resources Reservation #9708

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merged 2 commits into from Aug 8, 2020
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Update example for Resources Reservation #9708

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dcef2ff
Update example for Resources Reservation
Aug 8, 2020
f772c55
Remove outdated docs for Calico
Aug 8, 2020
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52 changes: 0 additions & 52 deletions docs/calico_cidr_migration/create_migration_manifest.sh
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108 changes: 0 additions & 108 deletions docs/calico_cidr_migration/jobs.yaml.template
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12 changes: 7 additions & 5 deletions docs/cluster_spec.md
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Expand Up @@ -647,25 +647,27 @@ For more information, see the [feature gate documentation](https://kubernetes.io

### Compute Resources Reservation

In a scenario where node has 32Gi of memory, 16 CPUs and 100Gi of ephemeral storage, resource reservation could be set as in the following example:

```yaml
spec:
kubelet:
kubeReserved:
cpu: "100m"
memory: "100Mi"
cpu: "1"
memory: "2Gi"
ephemeral-storage: "1Gi"
kubeReservedCgroup: "/kube-reserved"
kubeletCgroups: "/kube-reserved"
runtimeCgroups: "/kube-reserved"
systemReserved:
cpu: "100m"
memory: "100Mi"
cpu: "500m"
memory: "1Gi"
ephemeral-storage: "1Gi"
systemReservedCgroup: "/system-reserved"
enforceNodeAllocatable: "pods,system-reserved,kube-reserved"
```

Will result in the flag `--kube-reserved=cpu=100m,memory=100Mi,ephemeral-storage=1Gi --kube-reserved-cgroup=/kube-reserved --kubelet-cgroups=/kube-reserved --runtime-cgroups=/kube-reserved --system-reserved=cpu=100m,memory=100Mi,ephemeral-storage=1Gi --system-reserved-cgroup=/system-reserved --enforce-node-allocatable=pods,system-reserved,kube-reserved`
The above will result in the flags `--kube-reserved=cpu=1,memory=2Gi,ephemeral-storage=1Gi --kube-reserved-cgroup=/kube-reserved --kubelet-cgroups=/kube-reserved --runtime-cgroups=/kube-reserved --system-reserved=cpu=500m,memory=1Gi,ephemeral-storage=1Gi --system-reserved-cgroup=/system-reserved --enforce-node-allocatable=pods,system-reserved,kube-reserved` being added to the kubelet.

Learn more about reserving compute resources [here](https://kubernetes.io/docs/tasks/administer-cluster/reserve-compute-resources/) and [here](https://kubernetes.io/docs/reference/command-line-tools-reference/kubelet/).

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1 change: 0 additions & 1 deletion hack/.shellcheck_failures
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@@ -1,6 +1,5 @@
./addons/cluster-autoscaler/cluster-autoscaler.sh
./addons/prometheus-operator/sync-repo.sh
./docs/calico_cidr_migration/create_migration_manifest.sh
./hack/common.sh
./hack/dev-build.sh
./hack/make-apimachinery.sh
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