Create Dockerfile

[minu1215]

• A. 각각 Dockerfile 을 생성
• B. 빌드
• C. RUN
• D. 네트워크 생성하여 serv-a, serv-b, lb 를 묶고
• E. 잘 동작하는지 확인 및 README.md 에 설명 작성

[minu1215]

A. Create Dockerfile

$ tree
tree
.
├── README.md
├── lb
│   ├── Dockerfile
│   └── config
│       └── default.conf
├── nginx
│   └── Dockerfile
├── serv-a
│   ├── Dockerfile
│   └── index.html
└── serv-b
    ├── Dockerfile
    └── index.html

• lb/Dockerfile

$ cat lb/Dockerfile
FROM nginx
COPY config/default.conf /etc/nginx/conf.d/

• serv-a/Dockerfile

$ cat serv-a/Dockerfile
FROM nginx
COPY index.html /usr/share/nginx/html

• serv-b/Dockerfile

$ cat serv-a/Dockerfile
FROM nginx
COPY index.html /usr/share/nginx/html

[minu1215]

B. Build Dockerfile

• lb

$ sudo docker build -t lb .
[sudo] password for kaz1301:
[+] Building 0.2s (7/7) FINISHED                                           docker:default
 => [internal] load build definition from Dockerfile                                 0.0s
 => => transferring dockerfile: 93B                                                  0.0s
 => [internal] load metadata for docker.io/library/nginx:latest                      0.0s
 => [internal] load .dockerignore                                                    0.0s
 => => transferring context: 2B                                                      0.0s
 => [internal] load build context                                                    0.0s
 => => transferring context: 200B                                                    0.0s
 => CACHED [1/2] FROM docker.io/library/nginx:latest                                 0.0s
 => [2/2] COPY config/default.conf /etc/nginx/conf.d/                                0.0s
 => exporting to image                                                               0.0s
 => => exporting layers                                                              0.0s
 => => writing image sha256:e5cbac9cc803c14eb9a045897695056dd56751e9805c1561e56e968  0.0s
 => => naming to docker.io/library/lb                                                0.0s

• serv-a

$ sudo docker build -t n-s-1 .
[+] Building 0.3s (7/7) FINISHED                                           docker:default
 => [internal] load build definition from Dockerfile                                 0.0s
 => => transferring dockerfile: 87B                                                  0.0s
 => [internal] load metadata for docker.io/library/nginx:latest                      0.0s
 => [internal] load .dockerignore                                                    0.0s
 => => transferring context: 2B                                                      0.0s
 => [internal] load build context                                                    0.0s
 => => transferring context: 48B                                                     0.0s
 => [1/2] FROM docker.io/library/nginx:latest                                        0.1s
 => [2/2] COPY index.html /usr/share/nginx/html                                      0.0s
 => exporting to image                                                               0.1s
 => => exporting layers                                                              0.1s
 => => writing image sha256:4ec1d4c543e4244fff08ec637b8eb3f22738253bacc5f5ab872cd97  0.0s
 => => naming to docker.io/library/n-s-1                                             0.0s

• serv-b

$ sudo docker build -t n-s-2 .
[+] Building 0.2s (7/7) FINISHED                                           docker:default
 => [internal] load build definition from Dockerfile                                 0.0s
 => => transferring dockerfile: 87B                                                  0.0s
 => [internal] load metadata for docker.io/library/nginx:latest                      0.0s
 => [internal] load .dockerignore                                                    0.0s
 => => transferring context: 2B                                                      0.0s
 => [internal] load build context                                                    0.0s
 => => transferring context: 48B                                                     0.0s
 => CACHED [1/2] FROM docker.io/library/nginx:latest                                 0.0s
 => [2/2] COPY index.html /usr/share/nginx/html                                      0.0s
 => exporting to image                                                               0.0s
 => => exporting layers                                                              0.0s
 => => writing image sha256:502cd8fbf02e4d9a4ebd4bd8772e64bdd7ec3ddf303cd396963a942  0.0s
 => => naming to docker.io/library/n-s-2                                             0.0s

[minu1215]

C. Run

• lb

$ sudo docker run -d -p 9090:80 --name lb lb
62e7dc9ad2e95183806027739f55eadcfb3595854dbd65bfff55d4d8407e8bc1

• serv-a

$ sudo docker run -d --name serv-a n-s-1
27c28eee4726f6a1e9abc187855fa1ead543cac9217e97463121fc5a824ab999

• serv-b

$ sudo docker run -d --name serv-b n-s-2
5fe74fbb73d3eeec124d1754aab4aa707b75f8c08714c65cd837c4243d98087a

[minu1215]

D. Create network & Connect

$ sudo docker network create nginx-lb
71f6f718e07e4194ff52255444e665570e661f912c1b8bacd518da82287f6c24
$ sudo docker network connect nginx-lb lb
$ sudo docker network connect nginx-lb serv-a
$ sudo docker network connect nginx-lb serv-b

• Restart lb

$ sudo docker start lb
lb
$ sudo docker ps
CONTAINER ID   IMAGE     COMMAND                  CREATED         STATUS         PORTS     NAMES
5fe74fbb73d3   n-s-2     "/docker-entrypoint.…"   8 minutes ago   Up 8 minutes   80/tcp    serv-b
27c28eee4726   n-s-1     "/docker-entrypoint.…"   8 minutes ago   Up 8 minutes   80/tcp    serv-a
62e7dc9ad2e9   lb        "/docker-entrypoint.…"   9 minutes ago   Up 6 seconds   80/tcp    lb

[minu1215]

E. http://localhost:9090

[minu1215]

E. update README.md

https://github.com/minu1215/docker-nginx-vhost/blob/v0.1.0/Dockerfile/README.md