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Merge pull request #25820 from ydFu/patch-1 

Fix some typo in install-kubeadm.md
pull/25823/head
Kubernetes Prow Robot 2020-12-26 05:22:27 -08:00 committed by GitHub
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content/en/docs/setup/production-environment/tools/kubeadm/install-kubeadm.md
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@ -26,9 +26,9 @@ For information how to create a cluster with kubeadm once you have performed thi
- Fedora 25+
- HypriotOS v1.0.1+
- Flatcar Container Linux (tested with 2512.3.0)
* 2 GB or more of RAM per machine (any less will leave little room for your apps)
* 2 CPUs or more
* Full network connectivity between all machines in the cluster (public or private network is fine)
* 2 GB or more of RAM per machine (any less will leave little room for your apps).
* 2 CPUs or more.
* Full network connectivity between all machines in the cluster (public or private network is fine).
* Unique hostname, MAC address, and product_uuid for every node. See [here](#verify-mac-address) for more details.
* Certain ports are open on your machines. See [here](#check-required-ports) for more details.
* Swap disabled. You **MUST** disable swap in order for the kubelet to work properly.
@ -76,7 +76,7 @@ For more details please see the [Network Plugin Requirements](/docs/concepts/ext
|----------|-----------|------------|-------------------------|---------------------------|
| TCP | Inbound | 6443* | Kubernetes API server | All |
| TCP | Inbound | 2379-2380 | etcd server client API | kube-apiserver, etcd |
| TCP | Inbound | 10250 | Kubelet API | Self, Control plane |
| TCP | Inbound | 10250 | kubelet API | Self, Control plane |
| TCP | Inbound | 10251 | kube-scheduler | Self |
| TCP | Inbound | 10252 | kube-controller-manager | Self |
@ -84,7 +84,7 @@ For more details please see the [Network Plugin Requirements](/docs/concepts/ext
| Protocol | Direction | Port Range | Purpose | Used By |
|----------|-----------|-------------|-----------------------|-------------------------|
| TCP | Inbound | 10250 | Kubelet API | Self, Control plane |
| TCP | Inbound | 10250 | kubelet API | Self, Control plane |
| TCP | Inbound | 30000-32767 | NodePort Services† | All |
† Default port range for [NodePort Services](/docs/concepts/services-networking/service/).
@ -160,7 +160,7 @@ need to ensure they match the version of the Kubernetes control plane you want
kubeadm to install for you. If you do not, there is a risk of a version skew occurring that
can lead to unexpected, buggy behaviour. However, _one_ minor version skew between the
kubelet and the control plane is supported, but the kubelet version may never exceed the API
server version. For example, kubelets running 1.7.0 should be fully compatible with a 1.8.0 API server,
server version. For example, the kubelet running 1.7.0 should be fully compatible with a 1.8.0 API server,
but not vice versa.
For information about installing `kubectl`, see [Install and set up kubectl](/docs/tasks/tools/install-kubectl/).
@ -299,7 +299,7 @@ Please mind, that you **only** have to do that if the cgroup driver of your CRI
is not `cgroupfs`, because that is the default value in the kubelet already.
{{< note >}}
Since `--cgroup-driver` flag has been deprecated by kubelet, if you have that in `/var/lib/kubelet/kubeadm-flags.env`
Since `--cgroup-driver` flag has been deprecated by the kubelet, if you have that in `/var/lib/kubelet/kubeadm-flags.env`
or `/etc/default/kubelet`(`/etc/sysconfig/kubelet` for RPMs), please remove it and use the KubeletConfiguration instead
(stored in `/var/lib/kubelet/config.yaml` by default).
{{< /note >}}