# 5. Cài đặt docker, docker-compose

### **Bước 1: Thực hiện install các gói cần thiết**

`sudo yum install -y yum-utils`

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

### Bước 2: Cài đặt docker và docker compose

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

*Nếu cần nhập GPG key thì điền thông tin sau:*

*`060A 61C5 1B55 8A7F 742B 77AA C52F EB6B 621E 9F35`*

### Bước 3: khởi chạy docker

`sudo systemctl  enable docker`

`sudo systemctl start docker`

Thêm người dùng vào nhóm docker

`sudo usermod -aG docker $(whoami)`

### Bước 4: Cấu hình docker

* Server triển khai cần được cài đặt docker
* Tạo file daemon.json nếu chưa tồn tại

  `sudo nano /etc/docker/daemon.json`
* Đăng ký insecure bằng cách thêm cấu hình sau vào file daemon.json

  `{`

  `"insecure-registries" : ["repo.viettelsoftware.com:8088"]` 

    `}`

* Restart lại docker

  `sudo systemctl restart docker`

### Bước 5: link tham khảo

[`https://docs.docker.com/engine/install/centos/`](https://docs.docker.com/engine/install/centos/)


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