I am developing a web application based on docker. I did a little bit of building the development base, so I summarized it in the article. It's a rudimentary thing, but is it your memorandum? I will write an article as a feeling.

Docker images nginx First, fetch nginx docker images.

$ docker pull docker.io/nginx
Using default tag: latest
latest: Pulling from library/nginx
bf5952930446: Already exists 
cb9a6de05e5a: Pull complete 
9513ea0afb93: Pull complete 
b49ea07d2e93: Pull complete 
a5e4a503d449: Pull complete 
Digest: sha256:b0ad43f7ee5edbc0effbc14645ae7055e21bc1973aee5150745632a24a752661
Status: Downloaded newer image for nginx:latest
docker.io/library/nginx:latest

Get it at! Check with docker images.

$ docker images
REPOSITORY                             TAG                 IMAGE ID            CREATED             SIZE
nginx                                  alpine              ecd67fe340f9        2 months ago        21.6MB

I'm going to docker run!

Note: Some of the following operations are incorrect. (There is a mistake in the command that docker runs.) </ Font> images⇨container I will continue to do.

Docker run is required to create a container. Let's go.

$ docker run -d -p 8000:80 --name cesium_nginx -v /Folder to mount:/home ecd67fe340f9 
a115c1e7a815a4856b2b51755e217f2cc1aa856c81489d9ae3020f4fefd0883f

This time, we will not only set up the port but also mount it. Options used -p Port number accessed from the outside: Specify the port number on the container side. -d Run in the background. -v Mount folder: Mount destination Mount the folder. -v local: cotainer --name Decide on a container name.

$ docker ps
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                  NAMES
a115c1e7a815        ecd67fe340f9        "/docker-entrypoint.…"   5 seconds ago       Up 4 seconds        0.0.0.0:8000->80/tcp   cesium_nginx

Go to localhost: 8000

http://localhost:8000/ When you open ...

スクリーンショット 2020-09-09 18.17.36.png

This is ... what is this ...

This is proof that nginx worked normally! !! !! In other words, success? I wondered, but I already have an html file in my mounted folder. So if you don't see it, you're not successful.

Fix

What was wrong ... In short, the mount was wrong. I mounted it on / home. The reason is appropriate ... I thought it was good everywhere.

It wasn't that sweet ...

docker rm and docker stop. (I will omit the processing there)

$ docker run --name cesium_nginx -v /Folder to mount:/usr/share/nginx/html:ro -d -p 8081:80 ecd67fe340f9 
f85c35793c4bb7368af7798db788f707bcbd4278bbcfdf87a360f727e6433c00

/ usr / share / nginx / html: ro This was needed.

Now let's open localhost: 8081!

スクリーンショット 2020-09-09 18.25.10.png

Kita ---

Finally the target screen is ... (This screen is the screen of a web application called Cesium.js. I have added some arrangements ...)

Summary

Is it a specification? Let's do it after checking it carefully

Start from here! I will play around with it. The beginning of fun and fun development ~ (As you can see, it was already under development ...)

Web application built with docker (1)