Copy tasks/configure-pod-container/static-pod.md and glossary word files from en/ directory.

content/ja/docs/reference/glossary/docker.md

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+---
+title: Docker
+id: docker
+date: 2018-04-12
+full_link: https://docs.docker.com/engine/
+short_description: >
+  Docker is a software technology providing operating-system-level virtualization also known as containers.
+
+aka:
+tags:
+- fundamental
+---
+Docker (specifically, Docker Engine) is a software technology providing operating-system-level virtualization also known as {{< glossary_tooltip text="containers" term_id="container" >}}.
+
+<!--more-->
+
+Docker uses the resource isolation features of the Linux kernel such as cgroups and kernel namespaces, and a union-capable file system such as OverlayFS and others to allow independent containers to run within a single Linux instance, avoiding the overhead of starting and maintaining virtual machines (VMs).

content/ja/docs/reference/glossary/mirror-pod.md

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+---
+title: Mirror Pod
+id: mirror-pod
+date: 2019-08-06
+short_description: >
+  An object in the API server that tracks a static pod on a kubelet.
+
+aka: 
+tags:
+- fundamental
+---
+ A {{< glossary_tooltip text="pod" term_id="pod" >}} object that a kubelet uses
+ to represent a {{< glossary_tooltip text="static pod" term_id="static-pod" >}}
+
+<!--more--> 
+
+When the kubelet finds a static pod in its configuration, it automatically tries to
+create a Pod object on the Kubernetes API server for it. This means that the pod
+will be visible on the API server, but cannot be controlled from there.
+
+(For example, removing a mirror pod will not stop the kubelet daemon from running it).