[Docker] Build a Wordpress environment locally (Win, Mac) quickly

Install Docker Desktop on your local PC

https://www.docker.com/products/docker-desktop Please execute the download according to your environment (win, mac).

Check if it is installed safely with the following command

docker -v

You now have Docker Engine on your local machine.

So, if you don't start it, it's meaningless, so please start Docker. Probably if there is a whale icon somewhere, it is running.

• The following is an example of the task tray for windows.

Always keep in mind that working with Docker is ** an event in a virtual environment called Docker Engine **.

** "The environment is not built on the local host (PC), it is built on the Docker host (Engine)" **

Install python

e? python? Is there something wrong? Many people would have thought. I understand your feelings. But let's keep that feeling in our hearts. For the time being, to explain briefly, After this, you will also install a tool that assists Docker operation, That's a tool made in Python. Its name is ** "Docker Comopose" ** Python is quick to install it easily. ** Install "python3" and "python3-pip" ** respectively. https://www.python.org/

• I will omit the method of installing python and bringing it to a usable state, but win may be a little more complicated than mac. I wish you good luck.

Check if it is installed safely with the following command

python3 -V

Install Docker Compose

So let's introduce an assistant tool for Docker operation.

pip3 install docker-compose

• Pip is a python package management tool. Think of it as npm in terms of node

Check if it is installed safely with the following command

docker-compose --version

Create a working directory

Create it anywhere on your local PC and move to that directory. This time, let's call it "wp_test". It can be a command, manual with GUI, or whatever.

mkdir ~/wp_test
cd ~/wp_test

• No, wait a minute, I said that I'm not working on the local host (PC). Isn't there any contradiction in creating a working directory like this? Those who thought, the point is sharp. This is just for "some work" and does not mean the location of the main body of the Wordpress-based project that you plan to create. The whole picture will be revealed later. ** Stay tuned for now. ** **

Create docker-compose.yml

What is this? I think it feels like that. As the name suggests, it is ** a Docker compose configuration file written in YAML format **. For the time being, create and save with the following contents with an editor, and place it in the corresponding directory created earlier.

• YAML format is a description method that expresses a structural block with blank indentation.

docker-compose.yml

version: "3"

services:
  wordpress-db:
    image: mysql:5.7
    networks:
      - wordpressnet
    volumes:
      - wordpress_db_volume:/var/lib/mysql
    restart: always
    environment:
      MYSQL_ROOT_PASSWORD: myrootpassword
      MYSQL_DATABASE: wordpressdb
      MYSQL_USER: wordpressuser
      MYSQL_PASSWORD: wordpresspass

  wordpress-app:
    depends_on:
      - wordpress-db
    image: wordpress
    networks:
      - wordpressnet
    ports:
      - 8080:80
    restart: always
    environment:
      WORDPRESS_DB_HOST: wordpress-db
      WORDPRESS_DB_NAME: wordpressdb
      WORDPRESS_DB_USER: wordpressuser
      WORDPRESS_DB_PASSWORD: wordpresspass

networks:
  wordpressnet:

volumes:
  wordpress_db_volume:

• Don't think about what is written

Start a container with Docker Compose

Let's start the container with this setting for the time being. Be sure to run it in the directory where docker-compose.yml is located.

cd ~/wp_test
docker-compose up -d

• If the container does not start here, For one thing, check again if the Docker Engine itself is running. It is OK if the whale icon is in the task tray.

Confirm startup

http://localhost:8080/

You should see the initial Wordpress installation screen.

Confirmation of container startup with command

docker-compose ps

You should see the container you are running.

• Two this time

Stop and destroy the container

docker-compose down

Finally

You may hear a voice saying, "Hey, you can't recover the hints by running like this!" Time is also time, so this time it's up to here. For the time being, try setting up Wordpress in this state and play around with it. Then, various problems will come up. Then see you again.