00-docker.md

Docker post.

01-installation.sh

sudo apt install docker.io docker-compose

02-sudo.sh

sudo usermod -aG docker your-user

10-run.sh

docker run [OPTIONS] IMAGE [COMMAND] [ARG...]

11-docker-hello-world.sh

docker run hello-world

12-docker-hello-world-output-1.txt

Unable to find image 'hello-world:latest' locally
latest: Pulling from library/hello-world
d1725b59e92d: Pull complete 
Digest: sha256:0add3ace90ecb4adbf7777e9aacf18357296e799f81cabc9fde470971e499788
Status: Downloaded newer image for hello-world:latest

12-docker-hello-world-output-2.txt

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/

13-docker-ps.sh

docker ps -a

14-docker-ps.txt

CONTAINER ID   IMAGE         COMMAND     CREATED         STATUS                     PORTS    NAMES
53592cd94a6d   hello-world   "/hello"    2 seconds ago   Exited (0) 2 seconds ago            determined_feynman

15-docker-rm.sh

docker rm 53592cd94a6d

20-docker-compose.yml

version: '2'

services:
  mysql:
    image: mysql:5.7
    restart: always
    ports:
      - 8081:3306
    environment:
      MYSQL_USER: wordpress
      MYSQL_ROOT_PASSWORD: wordpress
      MYSQL_DATABASE: wordpress
      MYSQL_PASSWORD: wordpress

  wordpress:
    depends_on:
      - mysql
    image: wordpress
    ports:
      - 8080:80
    restart: always
    environment:
      WORDPRESS_DB_HOST: mysql:3306
      WORDPRESS_DB_USER: wordpress
      WORDPRESS_DB_PASSWORD: wordpress

21-run-docker-compose.sh

docker-compose up -d

22-docker-compose-stop.sh

docker-compose stop

23-docker-compose-down.sh

docker-compose down

30-docker-compose-volumes.yml

version: '2'

services:
  mysql:
    image: mysql:5.7
    restart: always
    ports:
      - 8081:3306
    environment:
      MYSQL_USER: wordpress
      MYSQL_ROOT_PASSWORD: wordpress
      MYSQL_DATABASE: wordpress
      MYSQL_PASSWORD: wordpress

  wordpress:
    depends_on:
      - mysql
    image: wordpress
    ports:
      - 8080:80
    restart: always
    volumes:
      - ./:/var/www/html/wp-content/plugins/nelio-content
    environment:
      WORDPRESS_DB_HOST: mysql:3306
      WORDPRESS_DB_USER: wordpress
      WORDPRESS_DB_PASSWORD: wordpress

40-etc-hosts.txt

127.0.0.1    localhost
127.0.0.1    content.local

41-nginx-proxy.yml

version: '2'

services:
  nginx-proxy:
    image: jwilder/nginx-proxy
    restart: always
    ports:
      - 80:80
      - 3306:3306
    volumes:
      - /var/run/docker.sock:/tmp/docker.sock:ro

networks:
  default:
    external:
      name: proxy

42-docker-compose-hostname.yml

version: '2'

services:
  mysql:
    image: mysql:5.7
    restart: always
    ports:
      - 8081:3306
    environment:
      MYSQL_USER: wordpress
      MYSQL_ROOT_PASSWORD: wordpress
      MYSQL_DATABASE: wordpress
      MYSQL_PASSWORD: wordpress
    networks:
      - backend

  wordpress:
    depends_on:
      - mysql
    image: wordpress
    ports:
      - 8080:80
    restart: always
    volumes:
      - ./:/var/www/html/wp-content/plugins/nelio-content
    environment:
      VIRTUAL_HOST: content.local
      VIRTUAL_PORT: 8080
      WORDPRESS_DB_HOST: mysql:3306
      WORDPRESS_DB_USER: wordpress
      WORDPRESS_DB_PASSWORD: wordpress
    networks:
      - frontend
      - backend

networks:
  backend:
  frontend:
    external:
      name: proxy