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Replace kube-master with kube_control_plane (#7256)
This replaces kube-master with kube_control_plane because of [1]:
The Kubernetes project is moving away from wording that is
considered offensive. A new working group WG Naming was created
to track this work, and the word "master" was declared as offensive.
A proposal was formalized for replacing the word "master" with
"control plane". This means it should be removed from source code,
documentation, and user-facing configuration from Kubernetes and
its sub-projects.
NOTE: The reason why this changes it to kube_control_plane not
kube-control-plane is for valid group names on ansible.
[1]: https://github.com/kubernetes/enhancements/blob/master/keps/sig-cluster-lifecycle/kubeadm/2067-rename-master-label-taint/README.md#motivation
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@@ -76,16 +76,16 @@ var in inventory.
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## Connecting to Kubernetes
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By default, Kubespray configures kube-master hosts with insecure access to
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By default, Kubespray configures kube_control_plane hosts with insecure access to
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kube-apiserver via port 8080. A kubeconfig file is not necessary in this case,
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because kubectl will use <http://localhost:8080> to connect. The kubeconfig files
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generated will point to localhost (on kube-masters) and kube-node hosts will
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generated will point to localhost (on kube_control_planes) and kube-node hosts will
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connect either to a localhost nginx proxy or to a loadbalancer if configured.
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More details on this process are in the [HA guide](/docs/ha-mode.md).
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Kubespray permits connecting to the cluster remotely on any IP of any
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kube-master host on port 6443 by default. However, this requires
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authentication. One can get a kubeconfig from kube-master hosts
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kube_control_plane host on port 6443 by default. However, this requires
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authentication. One can get a kubeconfig from kube_control_plane hosts
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(see [below](#accessing-kubernetes-api)) or connect with a [username and password](/docs/vars.md#user-accounts).
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For more information on kubeconfig and accessing a Kubernetes cluster, refer to
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@@ -119,7 +119,7 @@ kubectl proxy
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## Accessing Kubernetes API
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The main client of Kubernetes is `kubectl`. It is installed on each kube-master
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The main client of Kubernetes is `kubectl`. It is installed on each kube_control_plane
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host and can optionally be configured on your ansible host by setting
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`kubectl_localhost: true` and `kubeconfig_localhost: true` in the configuration:
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