docker 操作记录-0_last metadata expiration-优快云博客

本文链接：https://blog.youkuaiyun.com/shuitian_ys/article/details/103781095
在Fedora环境中，通过dnf命令安装Docker CE及其依赖组件，包括containerd.io、docker-ce-cli、container-selinux和libcgroup。安装过程中同步了缓存，解析了依赖关系，并成功下载和安装了所有必要的软件包。
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fedora环境安装docker
[root@fedora ~]# dnf install docker-ce
Fedora 30 - x86_64 - Updates - aliyun                                                                        31 kB/s | 2.5 kB     00:00    
Failed to synchronize cache for repo 'updates'
Ignoring repositories: updates
Last metadata expiration check: 0:00:43 ago on Mon 05 Aug 2019 10:42:14 PM CST.
Dependencies resolved.
============================================================================================================================================
 Package                           Architecture           Version                                    Repository                        Size
============================================================================================================================================
Installing:
 docker-ce                         x86_64                 3:19.03.1-3.fc30                           docker-ce-stable                  24 M
Installing dependencies:
 containerd.io                     x86_64                 1.2.6-3.3.fc30                             docker-ce-stable                  21 M
 docker-ce-cli                     x86_64                 1:19.03.1-3.fc30                           docker-ce-stable                  39 M
 container-selinux                 noarch                 2:2.95-1.gite3ebc68.fc30                   fedora                            46 k
 libcgroup                         x86_64                 0.41-21.fc30                               fedora                            61 k

Transaction Summary
============================================================================================================================================
Install  5 Packages

Total download size: 85 M
Installed size: 355 M
Is this ok [y/N]: y
Downloading Packages:
(1/5): containerd.io-1.2.6-3.3.fc30.x86_64.rpm                                                              1.3 MB/s |  21 MB     00:16    
(2/5): container-selinux-2.95-1.gite3ebc68.fc30.noarch.rpm                                                  213 kB/s |  46 kB     00:00    
(3/5): libcgroup-0.41-21.fc30.x86_64.rpm                                                                    255 kB/s |  61 kB     00:00    
(4/5): docker-ce-cli-19.03.1-3.fc30.x86_64.rpm                                                              1.3 MB/s |  39 MB     00:29    
(5/5): docker-ce-19.03.1-3.fc30.x86_64.rpm                                                                  693 kB/s |  24 MB     00:35    
--------------------------------------------------------------------------------------------------------------------------------------------
Total                                                                                                       2.4 MB/s |  85 MB     00:35     
warning: /var/cache/dnf/docker-ce-stable-ab24de44335f5bb6/packages/containerd.io-1.2.6-3.3.fc30.x86_64.rpm: Header V4 RSA/SHA512 Signature, key ID 621e9f35: NOKEY
Docker CE Stable - x86_64                                                                                   1.4 kB/s | 1.6 kB     00:01    
Importing GPG key 0x621E9F35:
 Userid     : "Docker Release (CE rpm) <docker@docker.com>"
 Fingerprint: 060A 61C5 1B55 8A7F 742B 77AA C52F EB6B 621E 9F35
 From       : https://mirrors.tuna.tsinghua.edu.cn/docker-ce/linux/fedora/gpg
Is this ok [y/N]: y    
Key imported successfully
Running transaction check
Transaction check succeeded.
Running transaction test
Transaction test succeeded.
Running transaction
  Preparing        :                                                                                                                    1/1 
  Installing       : container-selinux-2:2.95-1.gite3ebc68.fc30.noarch                                                                  1/5 
  Running scriptlet: container-selinux-2:2.95-1.gite3ebc68.fc30.noarch                                                                  1/5 

  Installing       : containerd.io-1.2.6-3.3.fc30.x86_64                                                                                2/5 
  Running scriptlet: containerd.io-1.2.6-3.3.fc30.x86_64                                                                                2/5 
  Running scriptlet: libcgroup-0.41-21.fc30.x86_64                                                                                      3/5 
  Installing       : libcgroup-0.41-21.fc30.x86_64                                                                                      3/5 
  Installing       : docker-ce-cli-1:19.03.1-3.fc30.x86_64                                                                              4/5 
  Running scriptlet: docker-ce-cli-1:19.03.1-3.fc30.x86_64                                                                              4/5 
  Installing       : docker-ce-3:19.03.1-3.fc30.x86_64                                                                                  5/5 
  Running scriptlet: docker-ce-3:19.03.1-3.fc30.x86_64                                                                                  5/5 
  Verifying        : containerd.io-1.2.6-3.3.fc30.x86_64                                                                                1/5 
  Verifying        : docker-ce-3:19.03.1-3.fc30.x86_64                                                                                  2/5 
  Verifying        : docker-ce-cli-1:19.03.1-3.fc30.x86_64                                                                              3/5 
  Verifying        : container-selinux-2:2.95-1.gite3ebc68.fc30.noarch                                                                  4/5 
  Verifying        : libcgroup-0.41-21.fc30.x86_64                                                                                      5/5 

Installed:
  docker-ce-3:19.03.1-3.fc30.x86_64                      containerd.io-1.2.6-3.3.fc30.x86_64      docker-ce-cli-1:19.03.1-3.fc30.x86_64     
  container-selinux-2:2.95-1.gite3ebc68.fc30.noarch      libcgroup-0.41-21.fc30.x86_64           

Complete!