Convert site to Hugo (#8316)

This commit converts content and layout to use Hugo.

content/en/docs/reference/glossary/volume.md

@@ -0,0 +1,19 @@
+---
+title: Volume
+id: volume
+date: 2018-04-12
+full_link: /docs/concepts/storage/volumes/
+short_description: >
+  A directory containing data, accessible to the containers in a pod.
+
+aka: 
+tags:
+- core-object
+- fundamental
+---
+ A directory containing data, accessible to the containers in a {{< glossary_tooltip text="pod" term_id="pod" >}}.
+
+<!--more--> 
+
+A Kubernetes volume lives as long as the {{< glossary_tooltip text="pod" term_id="pod" >}} that encloses it. Consequently, a volume outlives any {{< glossary_tooltip text="containers" term_id="container" >}} that run within the {{< glossary_tooltip text="pod" term_id="pod" >}}, and data is preserved across {{< glossary_tooltip text="container" term_id="container" >}} restarts. 
+