Install Docker

Install Docker on Ubuntu / CentOS — configure the Aliyun mirror, verify the version, and start the systemd service

Docker is an open-source containerization platform for developing, shipping, and running applications. It packages an application and its dependencies into a lightweight, portable container that runs in any Docker-compatible environment — delivering on the "build once, run anywhere" promise.

Installation

# Step 1: install required system tools
sudo apt-get update
sudo apt-get install ca-certificates curl gnupg

# Step 2: trust Docker's GPG public key
sudo install -m 0755 -d /etc/apt/keyrings
curl -fsSL https://mirrors.aliyun.com/docker-ce/linux/ubuntu/gpg \
  | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg
sudo chmod a+r /etc/apt/keyrings/docker.gpg

# Step 3: write the package source
echo "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] \
  https://mirrors.aliyun.com/docker-ce/linux/ubuntu \
  $(. /etc/os-release && echo \"$VERSION_CODENAME\") stable" \
  | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

# Step 4: install Docker
sudo apt-get update
sudo apt-get install docker-ce docker-ce-cli containerd.io \
  docker-buildx-plugin docker-compose-plugin

Install a specific version of Docker-CE

# 1. List available versions
apt-cache madison docker-ce
# docker-ce | 17.03.1~ce-0~ubuntu-xenial | https://mirrors.aliyun.com/docker-ce/linux/ubuntu xenial/stable amd64 Packages

# 2. Install a specific version (VERSION example: 17.03.1~ce-0~ubuntu-xenial)
sudo apt-get -y install docker-ce=[VERSION]

# Step 1: install required system tools
sudo yum install -y yum-utils

# Step 2: add the package source
yum-config-manager --add-repo \
  https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

# Step 3: install Docker
sudo yum install docker-ce docker-ce-cli containerd.io \
  docker-buildx-plugin docker-compose-plugin

Install a specific version of Docker-CE

# 1. List available versions
yum list docker-ce.x86_64 --showduplicates | sort -r
# docker-ce.x86_64    17.03.1.ce-1.el7.centos    docker-ce-stable
# docker-ce.x86_64    17.03.0.ce-1.el7.centos    docker-ce-stable

# 2. Install a specific version (VERSION example: 17.03.0.ce.1-1.el7.centos)
sudo yum -y install docker-ce-[VERSION]

To enable the testing repository, edit /etc/yum.repos.d/docker-ce.repo and change enabled=0 under the [docker-ce-test] section to enabled=1.

Verify the installation

docker version

Example of a successful output:

Client: Docker Engine - Community
 Version:           26.0.0
 API version:       1.45
 Go version:        go1.21.8
 Git commit:        2ae903e
 Built:             Wed Mar 20 15:21:09 2024
 OS/Arch:           linux/amd64
 Context:           default

Server: Docker Engine - Community
 Engine:
  Version:          26.1.0
  API version:      1.45 (minimum version 1.24)
  Go version:       go1.21.9
  Git commit:       c8af8eb
  Built:            Mon Apr 22 17:08:46 2024
  OS/Arch:          linux/amd64
  Experimental:     false
 containerd:
  Version:          1.6.28
  GitCommit:        ae07eda36dd25f8a1b98dfbf587313b99c0190bb
 runc:
  Version:          1.1.12
  GitCommit:        v1.1.12-0-g51d5e94
 docker-init:
  Version:          0.19.0
  GitCommit:        de40ad0

Start Docker

sudo systemctl start docker
sudo systemctl enable docker

Check the service status

sudo systemctl status docker

Example of a healthy output:

● docker.service - Docker Application Container Engine
   Loaded: loaded (/usr/lib/systemd/system/docker.service; enabled; vendor preset: disabled)
   Active: active (running) since Tue 2024-10-29 18:21:24 CST; 1 months 17 days ago
     Docs: https://docs.docker.com
 Main PID: 20454 (dockerd)
    Tasks: 208
   Memory: 7.5G
   CGroup: /system.slice/docker.service
           └─20454 /usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock

Install Docker

Installation

Verify the installation

Start Docker

Check the service status

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