Docker实用笔记

构建ubuntu基础镜像

Dockerfile:

FROM ubuntu:20.04
LABEL maintainer="Nebulaliu <admin@liuxinyumo.cn>"
RUN apt-get update && apt-get install -y 
CMD ["/bin/bash"]

构建：

docker build -t my-ubuntu20-image .

其中 -t 指定了镜像的名称和标签，. 表示 Dockerfile 所在的当前目录。

进入镜像

docker run -it --name="my-ubuntu20-container" -p 8000:8000 .:/app/xxx my-ubuntu20-image

启动镜像 –name 指定容器名称， -v 绑定数据卷 -p 映射端口

将容器制作为镜像

docker commit [container ID] [image name]

例如：

docker commit my-ubuntu20-container my-image-0

发布到我的 Docker Hub

1.首先需要 login

docker login

也可以在 Docker Desktop 中手动登录。

2.打标签

docker tag base-php7:latest nebulaliu/base-php7:latest

3.上传

docker push nebulaliu/base-php7:latest 

docker-compose 实用笔记

安装

sudo curl -L "https://github.com/docker/compose/releases/download/v2.2.2/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose

sudo chmod +x /usr/local/bin/docker-compose

sudo ln -s /usr/local/bin/docker-compose /usr/bin/docker-compose

docker-compose version

设置开机启动服务 创建配置文件： /etc/systemd/system/docker-compose-app.service

[Unit]
Description=Docker Compose Application Service
Requires=docker.service
After=docker.service

[Service]
Type=oneshot
RemainAfterExit=yes
WorkingDirectory=/data/docker-compose
ExecStart=/usr/local/bin/docker-compose up -d
ExecStop=/usr/local/bin/docker-compose down
TimeoutStartSec=0

[Install]
WantedBy=multi-user.target

设置开机启动

sudo systemctl enable docker-compose-app.service
sudo systemctl start docker-compose-app.service

编辑 yaml

参考模板：

version: '3.8'

services:
  mysql:
    image: mysql:latest
    container_name: mysql
    environment:
      MYSQL_ROOT_PASSWORD: your_mysql_root_password
    ports:
      - "3306:3306"
    volumes:
      - mysql-data:/var/lib/mysql

  nginx:
    image: nginx:latest
    container_name: nginx
    ports:
      - "80:80"
    depends_on:
      - mysql
    volumes:
      - ./nginx/conf.d:/etc/nginx/conf.d
      - ./nginx/logs:/var/log/nginx

私有仓库

创建

直接启动，并将仓库数据目录设置为本地 /var/local/registry

docker run -d -p 5001:5000 --restart=always -v /var/local/registry:/var/lib/registry  --name registry registry

发布至私有仓库

打tag

$ docker tag ubuntu:latest 127.0.0.1:5000/ubuntu:latest
$ docker image ls
REPOSITORY                        TAG                 IMAGE ID            CREATED             VIRTUAL SIZE
ubuntu                            latest              ba5877dc9bec        6 weeks ago         192.7 MB
127.0.0.1:5000/ubuntu:latest      latest              ba5877dc9bec        6 weeks ago         192.7 MB

再push

$ docker push 127.0.0.1:5000/ubuntu:latest
The push refers to repository [127.0.0.1:5000/ubuntu]
373a30c24545: Pushed
a9148f5200b0: Pushed
cdd3de0940ab: Pushed
fc56279bbb33: Pushed
b38367233d37: Pushed
2aebd096e0e2: Pushed
latest: digest: sha256:fe4277621f10b5026266932ddf760f5a756d2facd505a94d2da12f4f52f71f5a size: 1568

配置非 https 推送权限

编辑 /etc/docker/daemon.json MacOS 在 Docker Desktop 中配置

{
  "registry-mirrors": [
    "https://hub-mirror.c.163.com",
    "https://mirror.baidubce.com"
  ],
  "insecure-registries": [
    "192.168.199.100:5000"
  ]
}