WSL2とDocker

Windows 10のMay 2020 Updateが来たのでWSL2に挑戦。
新たな環境を作るということで、Ubuntu 20.04 on WSL2を用意。
このページあたりを参考にしてやればすぐできる。
qiita.com

次はDocker。Docker Desktop for Windowsをインストール。
Docker Hub
"Enable WSL 2 Windows Features"をチェックしておく。

インストール完了後にWindowsからのログアウトが必要。

設定画面で、Resource > WSL INTEGRATIONで、Ubuntu-20.04をオンにする（画像ではオフ）。

Ubuntuからdockerを起動してみる。

$ docker run hello-world
Unable to find image 'hello-world:latest' locally
latest: Pulling from library/hello-world
0e03bdcc26d7: Pull complete
Digest: sha256:6a65f928fb91fcfbc963f7aa6d57c8eeb426ad9a20c7ee045538ef34847f44f1
Status: Downloaded newer image for hello-world:latest

Hello from Docker!
This message shows that your installation appears to be working correctly.

To generate this message, Docker took the following steps:
 1. The Docker client contacted the Docker daemon.
 2. The Docker daemon pulled the "hello-world" image from the Docker Hub.
    (amd64)
 3. The Docker daemon created a new container from that image which runs the
    executable that produces the output you are currently reading.
 4. The Docker daemon streamed that output to the Docker client, which sent it
    to your terminal.

To try something more ambitious, you can run an Ubuntu container with:
 $ docker run -it ubuntu bash

Share images, automate workflows, and more with a free Docker ID:
 https://hub.docker.com/

For more examples and ideas, visit:
 https://docs.docker.com/get-started/

とりあえず動いてるっぽい（？）