Add instructions for enabling fish auto-completions for kubectl

Author: brianpursley

content/en/docs/tasks/tools/included/optional-kubectl-configs-fish.md

@@ -0,0 +1,15 @@
+---
+title: "fish auto-completion"
+description: "Optional configuration to enable fish shell auto-completion."
+headless: true
+---
+
+The kubectl completion script for Fish can be generated with the command `kubectl completion fish`. Sourcing the completion script in your shell enables kubectl autocompletion.
+
+To do so in all your shell sessions, add the following line to your `~/.config/fish/config.fish` file:
+
+```shell
+kubectl completion fish | source
+```
+
+After reloading your shell, kubectl autocompletion should be working.

content/en/docs/tasks/tools/install-kubectl-linux.md

@@ -178,10 +178,11 @@ kubectl version --client
 
 kubectl provides autocompletion support for Bash, Zsh, Fish, and PowerShell, which can save you a lot of typing.
 
-Below are the procedures to set up autocompletion for Bash and Zsh.
+Below are the procedures to set up autocompletion for Bash, Fish, and Zsh.
 
 {{< tabs name="kubectl_autocompletion" >}}
 {{< tab name="Bash" include="included/optional-kubectl-configs-bash-linux.md" />}}
+{{< tab name="Fish" include="included/optional-kubectl-configs-fish.md" />}}
 {{< tab name="Zsh" include="included/optional-kubectl-configs-zsh.md" />}}
 {{< /tabs >}}
 

content/en/docs/tasks/tools/install-kubectl-macos.md

@@ -161,10 +161,11 @@ If you are on macOS and using [Macports](https://macports.org/) package manager,
 
 kubectl provides autocompletion support for Bash, Zsh, Fish, and PowerShell which can save you a lot of typing.
 
-Below are the procedures to set up autocompletion for Bash and Zsh.
+Below are the procedures to set up autocompletion for Bash, Fish, and Zsh.
 
 {{< tabs name="kubectl_autocompletion" >}}
 {{< tab name="Bash" include="included/optional-kubectl-configs-bash-mac.md" />}}
+{{< tab name="Fish" include="included/optional-kubectl-configs-fish.md" />}}
 {{< tab name="Zsh" include="included/optional-kubectl-configs-zsh.md" />}}
 {{< /tabs >}}