Explain List of important Docker Commands

Step [1] – What is the docker-compose Up command
The docker compose up command aggregates the output of each container (like docker compose logs –follow does).

Step [2] – What is the docker-compose stop command
To stop containers running in the background, use the docker-compose stop command:

Step [3] – What is the docker-compose Down command
Running this command in a terminal or within a script stops and removes all containers, networks, and volumes established by the docker-compose up command
To use it, simply navigate to your project directory and execute docker-compose down.

Step [4] – What is docker command to check services name

docker-compose config --services

Step [5] – What is Docker command to check Mysql or MariaDB Version

docker-compose exec db mysql -V

Step [6] – Which Command is being used to check total number of containers running right now

docker ps

Step [7] – Which Docker Command used for Restart Services

docker-compose restart

Step [8] – Linux command to check current path

Step [9] – List of required PHP 8.3 Extension for Linux/Docker/WSL2 (Magento 2 Installation)

sudo apt install php8.3-curl
sudo apt install php8.3-mbstring
sudo apt install php8.3-xml
sudo apt install php8.3-bcmath
sudo apt install php8.3-intl
sudo apt install php8.3-soap
sudo apt install php8.3-zip
sudo apt install php8.3-gd
sudo apt install php8.3-xsl

if pdo related issue displaying run below command & enable pdo extension

sudo apt install php8.3-mysql

Step [9] – Docker Command to find all installed images

docker images

Step [10] – Docker Command to find all installed volumes

docker volume ls

Step [11] – What is purpose of command “docker exec -it php bash”

docker exec -it php bash

It allows you to start an interactive Bash shell inside a running php container.

Open a Bash shell inside the php container.
Gain interactive access to the container, where you can:

• Run Linux commands.
• Explore or modify the file system.
• Execute PHP commands or scripts.
• Check log files, configurations, etc.

This is useful for debugging or managing running containers in real-time without stopping or recreating them.

Step [12] – What is purpose of docker-compose up -d --build

The docker-compose up -d --build command is used to start or rebuild Docker containers as defined in a docker-compose.yml file, with a few key actions:

Example Scenario

Let’s assume your docker-compose.yml file has the following services:

yamlCopy codeversion: '3'
services:
  web:
    build: ./web
    ports:
      - "8080:80"
  db:
    image: mysql:5.7
    environment:
      MYSQL_ROOT_PASSWORD: example

• web: This service is built from a Dockerfile located in the ./web directory.
• db: This service uses the official mysql:5.7 image.

When you run docker-compose up -d --build, the following happens:

1. Docker Compose rebuilds the web service image using the Dockerfile in the ./web directory.
2. It starts the web service on port 8080, mapping it to port 80 inside the container.
3. The db service using the mysql:5.7 image starts with the root password set to example.
4. Both services run in the background (detached mode), allowing you to continue using the terminal.

Step [13] – If command docker-compose restart do not put in correct path

Once put command docker-compose restart do not put in correct path as below

Step [14] – Navigate wsl2 file path in windows 11

Type \\wsl$\ in File Explorer

Step [14] –