Docker Install & Usage

In ubuntu24.04

Docker Desktop is not supported for ubuntu24.04.

卸载旧版本

sudo apt-get remove docker \
               docker-engine \
               docker.io

更新系统软件包

sudo apt update
sudo apt upgrade

安装依赖

sudo apt-get install \
    apt-transport-https \
    ca-certificates \
    curl \
    gnupg \
    lsb-release \
    software-properties-common \
    uidmap 

配置软件源

curl -fsSL https://mirrors.aliyun.com/docker-ce/linux/ubuntu/gpg | sudo gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg
echo \
  "deb [arch=amd64 signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://mirrors.aliyun.com/docker-ce/linux/ubuntu \
  $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

安装 Docker

sudo apt-get install docker-ce docker-ce-cli containerd.io docker-compose-plugin

使用 docker --version 验证是否安装成功。

启动 Docker

sudo systemctl enable docker
sudo systemctl start docker

添加用户组

sudo groupadd docker
sudo usermod -aG docker $USER

测试

docker run hello-world

Unable to find image 'hello-world:latest' locally
latest: Pulling from library/hello-world
c1ec31eb5944: Pull complete 
Digest: sha256:91fb4b041da273d5a3273b6d587d62d518300a6ad268b28628f74997b93171b2
Status: Downloaded newer image for hello-world:latest

Hello from Docker!
This message shows that your installation appears to be working correctly.

To generate this message, Docker took the following steps:
 1. The Docker client contacted the Docker daemon.
 2. The Docker daemon pulled the "hello-world" image from the Docker Hub.
    (amd64)
 3. The Docker daemon created a new container from that image which runs the
    executable that produces the output you are currently reading.
 4. The Docker daemon streamed that output to the Docker client, which sent it
    to your terminal.

To try something more ambitious, you can run an Ubuntu container with:
 $ docker run -it ubuntu bash

Share images, automate workflows, and more with a free Docker ID:
 https://hub.docker.com/

For more examples and ideas, visit:
 https://docs.docker.com/get-started/

终端登陆 Dockerhub

先去 Dockerhub 注册一个账号，然后在右上角点击头像，点击 Account Settings，在 Security 中点击 Personal access tokens，然后新建一个 Token，编辑对应名称和权限后，使用它所给出的命令即可。

若出现 Error saving credentials: error storing credentials - err: exec: "docker-credential-desktop": executable file not found in $PATH, out: ``，则编辑 ~/.docker.config.json，把 credsStore 一项删除即可。

设置开机自启动

sudo systemctl enable docker

检查 Docker 服务状态

sudo systemctl status docker

● docker.service - Docker Application Container Engine
     Loaded: loaded (/usr/lib/systemd/system/docker.service; enabled; preset: enabled)
    Drop-In: /etc/systemd/system/docker.service.d
             └─http-proxy.conf
     Active: active (running) since Fri 2024-09-13 12:42:41 CST; 41min ago
TriggeredBy: ● docker.socket
       Docs: https://docs.docker.com
   Main PID: 142120 (dockerd)
      Tasks: 20
     Memory: 23.8M (peak: 29.9M)
        CPU: 788ms
     CGroup: /system.slice/docker.service
             └─142120 /usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.s

配置 rootless（选）

放个官方文档链接

通过 Github Action 实现 Docker 镜像自动化构建和推送

name: Build and Push Docker Image with Incremental Tagging and Version Bump

on:
  push:
    branches:
      - main

jobs:
  build:
    runs-on: ubuntu-latest

    steps:
    - name: Checkout repository
      uses: actions/checkout@v2
      with:
        fetch-depth: 0
        tags: true

    - name: Get the latest Git tag
      id: get_tag
      run: |
        TAG=$(git describe --tags --abbrev=0 || echo "v0.0")
        echo "Latest tag: $TAG"
        echo "CURRENT_TAG=$TAG" >> $GITHUB_ENV

    - name: Calculate new tag with version bump
      id: calc_new_tag
      run: |
        CURRENT_TAG=${{ env.CURRENT_TAG }}
        VERSION=$(echo $CURRENT_TAG | sed 's/v//g')  
        MAJOR=$(echo $VERSION | cut -d. -f1)  
        MINOR=$(echo $VERSION | cut -d. -f2)  
        
        if [ $MINOR -lt 9 ]; then
          NEW_MINOR=$((MINOR+1))  
          NEW_TAG="v$MAJOR.$NEW_MINOR"
        else
          NEW_MAJOR=$((MAJOR+1))  
          NEW_MINOR=0  
          NEW_TAG="v$NEW_MAJOR.$NEW_MINOR"
        fi

        echo "New tag: $NEW_TAG"
        echo "NEW_TAG=$NEW_TAG" >> $GITHUB_ENV

    - name: Log in to DockerHub
      uses: docker/login-action@v2
      with:
        username: ${{ secrets.DOCKERHUB_USERNAME }}
        password: ${{ secrets.DOCKERHUB_TOKEN }}

    - name: Build and tag Docker image
      run: |
        docker build -t ${{ secrets.DOCKERHUB_USERNAME }}/technews-frontend:${{ env.NEW_TAG }} .
        docker tag ${{ secrets.DOCKERHUB_USERNAME }}/technews-frontend:${{ env.NEW_TAG }} ${{ secrets.DOCKERHUB_USERNAME }}/technews-frontend:latest

    - name: Push Docker image
      run: |
        docker push ${{ secrets.DOCKERHUB_USERNAME }}/technews-frontend:${{ env.NEW_TAG }}
        docker push ${{ secrets.DOCKERHUB_USERNAME }}/technews-frontend:latest

    - name: Set up Git credentials
      run: |
        git config user.name "github-actions[bot]"
        git config user.email "github-actions[bot]@users.noreply.github.com"
        git remote set-url origin https://x-access-token:${{ secrets.GITHUB_TOKEN }}@github.com/${{ github.repository }}.git

    - name: Create new Git tag
      run: |
        git tag ${{ env.NEW_TAG }}
        git push origin ${{ env.NEW_TAG }}

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