Setup docker lên centos 7 và dùng docker compose tạo hello world với apache

Link setup của docker:https://docs.docker.com/engine/install/centos/

Phần 1:Setup docker lên centos 7

1.1 Update and Install Dependencies:

sudo yum update -y

1.2 Set up the repository

sudo yum install -y yum-utils
sudo yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo

1.3 Install Docker Engine

sudo yum install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin

1.4 Start Docker.

 sudo systemctl start docker

To enable Docker to start on boot, use the following command:

  sudo systemctl enable docker

1.5 Test

sudo docker run hello-world

Thấy kết quả sau là thành công:

Phần 2:Tạo hello world

2.1 Create a directory

Create a new directory for your project.

This will be the root of your Docker Compose application.

cd /home
mkdir hello-apache
cd hello-apache

2.2 Create a file named docker-compose.yaml in the directory

version: "3.8"

services:
 web:
   image: httpd:latest
   volumes:
     - /home/hello-apache/index.html:/usr/local/apache2/htdocs/index.html:ro
   ports:
     - "80:80"

2.3 Create file index.html in folder /home/hello-apache with content

Hello, world

2.4 .Build and run the application:

docker compose up -d

2.5 Test

Truy cập browser với url:yourip Ví dụ: http://192.168.64.128

Một số lệnh cơ bản dùng trong bài viết:

To stop the container and remove its resources, run the following command:

docker compose down

Kiểm tra có các container nào đang chạy:

docker ps -a

Remove container đang chạy

docker rm -f  containerid