Docker镜像的使用

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发布于 2024-02-21 10:55:01

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发布于 2024-02-21 10:55:01

文章被收录于专栏：学习与分享

docker官方的镜像库比较慢，在进行镜像操作之前，需要将镜像源设置为国内的站点。

新建文件/etc/docker/daemon.json，输入如下内容：

{
    "registry-mirrors" : [
        "https://registry.docker-cn.com",
        "https://docker.mirrors.ustc.edu.cn",
        "http://hub-mirror.c.163.com",
        "https://cr.console.aliyun.com/"
    ]
}

然后重启docker的服务：

systemctl restart docker

3.1 列出本地所有镜像

执行命令 docker images 可以查看

$ docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
ubuntu              20.04               f643c72bc252        5 weeks ago         72.9MB
hello-world         latest              bf756fb1ae65        12 months ago       13.3kB

当前我本地只有刚才安装的两个镜像。

3.2 从镜像库中查找镜像

执行命令 docker search 镜像名称可以从docker镜像库中查找镜像。

$ docker search python
NAME                             DESCRIPTION                                     STARS              OFFICIAL          AUTOMATED
python                           Python is an interpreted, interactive, objec…   5757                [OK]                
django                           Django is a free web application framework, …   1039                [OK]                
pypy                             PyPy is a fast, compliant alternative implem…   260                 [OK]                
joyzoursky/python-chromedriver   Python with Chromedriver, for running automa…   57                                      [OK]
nikolaik/python-nodejs           Python with Node.js                             57                                      [OK]
arm32v7/python                   Python is an interpreted, interactive, objec…   53                                      
circleci/python                  Python is an interpreted, interactive, objec…   42                                      
centos/python-35-centos7         Platform for building and running Python 3.5…   38                                      
centos/python-36-centos7         Platform for building and running Python 3.6…   30                                      
hylang                           Hy is a Lisp dialect that translates express…   29                  [OK]                
arm64v8/python                   Python is an interpreted, interactive, objec…   24                                      
revolutionsystems/python         Optimized Python Images                         18                                      
centos/python-27-centos7         Platform for building and running Python 2.7…   17                                      
bitnami/python                   Bitnami Python Docker Image                     10                                      [OK]
publicisworldwide/python-conda   Basic Python environments with Conda.           6                                       [OK]
d3fk/python_in_bottle            Simple python:alpine completed by Bottle+Req…   5                                       [OK]
dockershelf/python               Repository for docker images of Python. Test…   5                                       [OK]
clearlinux/python                Python programming interpreted language with…   4                                       
i386/python                      Python is an interpreted, interactive, objec…   3                                       
ppc64le/python                   Python is an interpreted, interactive, objec…   2                                       
centos/python-34-centos7         Platform for building and running Python 3.4…   2                                       
amd64/python                     Python is an interpreted, interactive, objec…   1                                       
ccitest/python                   CircleCI test images for Python                 0                                       [OK]
s390x/python                     Python is an interpreted, interactive, objec…   0                                       
saagie/python                    Repo for python jobs                            0

最好选择官方（OFFICIAL）的镜像，这样的镜像最稳定一些。

3.3 下载新的镜像

执行命令docker pull 镜像名称:版本号即可下载新的镜像。

$ docker pull python:3.8
3.8: Pulling from library/python
6c33745f49b4: Pull complete 
ef072fc32a84: Pull complete 
c0afb8e68e0b: Pull complete 
d599c07d28e6: Pull complete 
f2ecc74db11a: Pull complete 
26856d31ce86: Pull complete 
2cd68d824f12: Pull complete 
7ea1535f18c3: Pull complete 
2bef93d9a76e: Pull complete 
Digest: sha256:9079aa8582543494225d2b3a28fce526d9a6b06eb06ce2bac3eeee592fcfc49e
Status: Downloaded newer image for python:3.8
docker.io/library/python:3.8

镜像下载后，就可以使用镜像来创建容器了。

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原始发表：2024-02-17，如有侵权请联系 cloudcommunity@tencent.com 删除

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