<code>len(src)</code> and <code>len(dst)</code>.
As a special case, <code>copy</code> also accepts a destination argument
assignable to type <code>[]byte</code> with a source argument of a
<code>string</code> type.
This form copies the bytes from the string into the byte slice.
</p>

<pre class="grammar">
copy(dst, src []T) int
copy(dst []byte, src string) int
</pre>

<p>

Kubeadm: Automate certificate copy between control planes in HA setups

- Joining control plane nodes to a HA cluster can now be simplified by enabling the optional automatic copy of certificates from an existing control plane node.

- Fixed a deep copy issue when retrieving the controller reference. ([#124116](https://github.com/kubernetes/kubernetes/pull/124116), [@HiranmoyChowdhury](https://github.com/HiranmoyChowdhury)) [SIG API Machinery and Release]

- Kubeadm: the command "kubeadm token create" now has a "--certificate-key" flag that can be used for the formation of join commands for control-planes with automatic copy of certificates ([#84591](https://github.com/kubernetes/kubernetes/pull/84591), [@TheLastProject](https://github.com/TheLastProject))

Troubleshoot workloads that crash on startup by creating a copy of the pod that uses a different container image or command.
Troubleshoot distroless containers by adding a new container with debugging tools, either in a new copy of the pod or using an ephemeral container. (Ephemeral containers are an alpha feature that are not enabled by default.)

- Automatically copy `topology.k8s.io/zone`, `topology.k8s.io/region` and `kubernetes.io/hostname` labels from Node objects to Pods when they are scheduled to a node (via the `pods/binding` endpoint) to allow applications that need to be explicitly aware of their assigned...

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// FearWorks Media Ltd. : https://fearworksmedia.co.uk
// submitted by Keith Fairley <******@****.***>
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fedorainfracloud.org
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pkg text/template/parse, const NodeComment NodeType
pkg text/template/parse, const ParseComments = 1
pkg text/template/parse, const ParseComments Mode
pkg text/template/parse, method (*CommentNode) Copy() Node
pkg text/template/parse, method (*CommentNode) String() string
pkg text/template/parse, method (CommentNode) Position() Pos
pkg text/template/parse, method (CommentNode) Type() NodeType

/*
 * Copyright 2012-2025 CodeLibs Project and the Others.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,

- Fixed a bug which could cause webhooks to have an incorrect copy of the old object after an Apply or Update ([#106195](https://github.com/kubernetes/kubernetes/pull/106195), [@alexzielenski](https://github.com/alexzielenski)) [SIG API Machinery]