Add zsh/oh my zsh/w10k

zsh/.oh-my-zsh/plugins/knife_ssh/README.md

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+# knife_ssh plugin
+
+This plugin adds a `knife_ssh` function as well as completion for it, to allow
+connecting via ssh to servers managed with [Chef](https://www.chef.io/).
+
+To use it, add `knife_ssh` to the plugins array in your zshrc file:
+```zsh
+plugins=(... knife_ssh)
+```
+
+The plugin creates a cache of the Chef node list via `knife`, and stores it
+in `$HOME/.knife_comp~`, when first triggering knife_ssh completion.
+
+**Requirements:** `knife` has to be installed.

zsh/.oh-my-zsh/plugins/knife_ssh/knife_ssh.plugin.zsh

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+function knife_ssh() {
+  grep -q $1 ~/.knife_comp~ 2> /dev/null || rm -f ~/.knife_comp~
+  ssh $(knife node show $1 | awk '/IP:/{print $2}')
+}
+
+_knife_ssh() {
+  if hash knife 2>/dev/null; then
+    if [[ ! -f ~/.knife_comp~ ]]; then
+      echo "\nGenerating ~/.knife_comp~..." >&2
+      knife node list > ~/.knife_comp~
+    fi
+    compadd $(< ~/.knife_comp~)
+  else
+    echo "Could not find knife" >&2
+  fi
+}
+
+compdef _knife_ssh knife_ssh