카타코더 Docker - Building Container Images 편집하기

==개요==
;Katacoda - Docker - Building Container Images

{{Katacoda|Docker & Containers|1}}

==Dockerfile 작성==
<source lang='console'>
$ ll
total 16
drwxr-xr-x 1 scrapbook scrapbook 4096 Mar 22 15:20 ./
drwxr-xr-x 1 scrapbook scrapbook 4096 Jun  8  2018 ../
-rw-r--r-- 1 root      root       121 Mar 22 15:20 Dockerfile
-rw-r--r-- 1 root      root        21 Mar 22 15:20 index.html
</source>
<source lang='console'>
$ cat index.html
<h1>Hello World</h1>
</source>

{{소스헤더|Dockerfile}}
<source lang='Dockerfile'>
FROM nginx:1.11-alpine
COPY index.html /usr/share/nginx/html/index.html
EXPOSE 80
CMD ["nginx", "-g", "daemon off;"]
</source>

==컨테이드 빌드==
<source lang='console'>
$ docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
</source>
<source lang='console'>
$ docker build -t nginx .
Sending build context to Docker daemon  3.072kB
Step 1/4 : FROM nginx:1.11-alpine
1.11-alpine: Pulling from library/nginx
709515475419: Pull complete
4b21d71b440a: Pull complete
c92260fe6357: Pull complete
ed383a1b82df: Pull complete
Digest: sha256:5aadb68304a38a8e2719605e4e180413f390cd6647602bee9bdedd59753c3590
Status: Downloaded newer image for nginx:1.11-alpine
 ---> bedece1f06cc
Step 2/4 : COPY index.html /usr/share/nginx/html/index.html
 ---> ff82266f8a3c
Step 3/4 : EXPOSE 80
 ---> Running in 75539b6235b5
Removing intermediate container 75539b6235b5
 ---> b06ce6726b2a
Step 4/4 : CMD ["nginx", "-g", "daemon off;"]
 ---> Running in df877b3d066b
Removing intermediate container df877b3d066b
 ---> a2272ce5f857
Successfully built a2272ce5f857
Successfully tagged nginx:latest
</source>
<source lang='console'>
$ docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
nginx               latest              a2272ce5f857        7 seconds ago       54.3MB
nginx               1.11-alpine         bedece1f06cc        23 months ago       54.3MB
</source>

==이미지 실행하기==
<source lang='console'>
$ docker run -d -p 80:80 nginx
45afb3ea6530661117140229e1959133552d8d31c45cfa72d27b957c6444d0a6
</source>
<source lang='console'>
$ curl -i http://docker
HTTP/1.1 200 OK
Server: nginx/1.11.13
Date: Fri, 22 Mar 2019 15:08:40 GMT
Content-Type: text/html
Content-Length: 21
Last-Modified: Fri, 22 Mar 2019 14:57:48 GMT
Connection: keep-alive
ETag: "5c94f7ec-15"
Accept-Ranges: bytes

<h1>Hello World</h1>
</source>
<source lang='console'>
$ docker ps
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS      PORTS                         NAMES
45afb3ea6530        nginx               "nginx -g 'daemon of…"   47 seconds ago      Up 45 seconds      0.0.0.0:80->80/tcp, 443/tcp   boring_kare
</source>

==같이 보기==
* [[docker images]]
* [[docker build]]