参考文章：
https://docs.docker.com/install/linux/docker-ce/centos/
https://www.runoob.com/docker/centos-docker-install.html
卸载旧版本
$ sudo yum remove docker \
docker-client \
docker-client-latest \
docker-common \
docker-latest \
docker-latest-logrotate \
docker-logrotate \
docker-engine
Modular dependency problems:
Problem 1: conflicting requests
- nothing provides module(perl:5.26) needed by module perl-DBD-SQLite:1.58:8010020191114033549:073fa5fe-0.x86_64
Problem 2: conflicting requests
- nothing provides module(perl:5.26) needed by module perl-DBI:1.641:8010020191113222731:16b3ab4d-0.x86_64
No match for argument: docker
No match for argument: docker-client
No match for argument: docker-client-latest
No match for argument: docker-common
No match for argument: docker-latest
No match for argument: docker-latest-logrotate
No match for argument: docker-logrotate
No match for argument: docker-engine
No packages marked for removal.
Dependencies resolved.
Nothing to do.
Complete!
设置仓库
sudo yum install -y yum-utils \
device-mapper-persistent-data \
lvm2Last metadata expiration check: 9:34:44 ago on Sun 05 Apr 2020 07:20:18 AM CST.
Package yum-utils-4.0.8-3.el8.noarch is already installed.
Package device-mapper-persistent-data-0.8.5-2.el8.x86_64 is already installed.
Package lvm2-8:2.03.05-5.el8.0.1.x86_64 is already installed.
Dependencies resolved.
Nothing to do.
Complete!
sudo yum-config-manager \
--add-repo \
https://download.docker.com/linux/centos/docker-ce.repoCentOS-8 - AppStream 2.7 kB/s | 4.3 kB 00:01
CentOS-8 - Base 2.4 kB/s | 3.8 kB 00:01
CentOS-8 - Extras 1.5 kB/s | 1.5 kB 00:01
Docker CE Stable - x86_64 4.4 kB/s | 3.5 kB 00:00
Error:
Problem: package docker-ce-3:19.03.8-3.el7.x86_64 requires containerd.io >= 1.2.2-3, but none of the providers can be installed
- cannot install the best candidate for the job
- package containerd.io-1.2.10-3.2.el7.x86_64 is excluded
- package containerd.io-1.2.13-3.1.el7.x86_64 is excluded
- package containerd.io-1.2.2-3.3.el7.x86_64 is excluded
- package containerd.io-1.2.2-3.el7.x86_64 is excluded
- package containerd.io-1.2.4-3.1.el7.x86_64 is excluded
- package containerd.io-1.2.5-3.1.el7.x86_64 is excluded
- package containerd.io-1.2.6-3.3.el7.x86_64 is excluded
(try to add '--skip-broken' to skip uninstallable packages or '--nobest' to use not only best candidate packages)
解决方式：
列出并排序您存储库中可用的版本。此示例按版本号（从高到低）对结果进行排序。
yum list docker-ce --showduplicates | sort -r
Last metadata expiration check: 0:00:14 ago on Sun 05 Apr 2020 04:55:32 PM CST.
docker-ce.x86_64 3:19.03.8-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.7-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.6-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.5-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.4-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.3-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.2-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.1-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.0-3.el7 docker-ce-stable
docker-ce.x86_64 3:18.09.9-3.el7 docker-ce-stable
docker-ce.x86_64 3:18.09.8-3.el7 docker-ce-stable
docker-ce.x86_64 3:18.09.7-3.el7 docker-ce-stable
docker-ce.x86_64 3:18.09.6-3.el7 docker-ce-stable
docker-ce.x86_64 3:18.09.5-3.el7 docker-ce-stable
docker-ce.x86_64 3:18.09.4-3.el7 docker-ce-stable
docker-ce.x86_64 3:18.09.3-3.el7 docker-ce-stable
docker-ce.x86_64 3:18.09.2-3.el7 docker-ce-stable
docker-ce.x86_64 3:18.09.1-3.el7 docker-ce-stable
docker-ce.x86_64 3:18.09.0-3.el7 docker-ce-stable
docker-ce.x86_64 18.06.3.ce-3.el7 docker-ce-stable
docker-ce.x86_64 18.06.2.ce-3.el7 docker-ce-stable
docker-ce.x86_64 18.06.1.ce-3.el7 docker-ce-stable
docker-ce.x86_64 18.06.0.ce-3.el7 docker-ce-stable
docker-ce.x86_64 18.03.1.ce-1.el7.centos docker-ce-stable
docker-ce.x86_64 18.03.0.ce-1.el7.centos docker-ce-stable
docker-ce.x86_64 17.12.1.ce-1.el7.centos docker-ce-stable
docker-ce.x86_64 17.12.0.ce-1.el7.centos docker-ce-stable
docker-ce.x86_64 17.09.1.ce-1.el7.centos docker-ce-stable
docker-ce.x86_64 17.09.0.ce-1.el7.centos docker-ce-stable
docker-ce.x86_64 17.06.2.ce-1.el7.centos docker-ce-stable
docker-ce.x86_64 17.06.1.ce-1.el7.centos docker-ce-stable
docker-ce.x86_64 17.06.0.ce-1.el7.centos docker-ce-stable
docker-ce.x86_64 17.03.3.ce-1.el7 docker-ce-stable
docker-ce.x86_64 17.03.2.ce-1.el7.centos docker-ce-stable
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
Available Packages
2、通过其完整的软件包名称安装特定版本，该软件包名称是软件包名称（docker-ce）加上版本字符串（第二列），从第一个冒号（:）一直到第一个连字符，并用连字符（-）分隔。例如：19.03.8
sudo yum install docker-ce-19.03.8 docker-ce-cli-19.03.8 containerd.io
Last metadata expiration check: 0:03:31 ago on Sun 05 Apr 2020 04:55:32 PM CST.
Error:
Problem: package docker-ce-3:19.03.8-3.el7.x86_64 requires containerd.io >= 1.2.2-3, but none of the providers can be installed
- conflicting requests
- package containerd.io-1.2.10-3.2.el7.x86_64 is excluded
- package containerd.io-1.2.13-3.1.el7.x86_64 is excluded
- package containerd.io-1.2.2-3.3.el7.x86_64 is excluded
- package containerd.io-1.2.2-3.el7.x86_64 is excluded
- package containerd.io-1.2.4-3.1.el7.x86_64 is excluded
- package containerd.io-1.2.5-3.1.el7.x86_64 is excluded
- package containerd.io-1.2.6-3.3.el7.x86_64 is excluded
(try to add '--skip-broken' to skip uninstallable packages or '--nobest' to use not only best candidate packages)
呵呵，又是新问题。。。。。
看上面的内容，说的是containerd.io >= 1.2.2-3 ，意思就是 containerd.io 的版本必须大于等于 1.2.2-3
要么就降低docker 的版本，要么就更新 containerd.io 的版本。
到https://download.docker.com/linux/centos/7/x86_64/edge/Packages/ 这里去看看最新版本的dontainerd.io
我这儿选最新的一个版本 下载。
wget https://download.docker.com/linux/centos/7/x86_64/edge/Packages/containerd.io-1.2.6-3.3.el7.x86_64.rpm
--2020-04-05 17:01:57-- https://download.docker.com/linux/centos/7/x86_64/edge/Packages/containerd.io-1.2.6-3.3.el7.x86_64.rpm
Resolving download.docker.com (download.docker.com)... 13.32.53.78, 13.32.53.12, 13.32.53.119, ...
Connecting to download.docker.com (download.docker.com)|13.32.53.78|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 27119348 (26M) [application/x-redhat-package-manager]
Saving to: ‘containerd.io-1.2.6-3.3.el7.x86_64.rpm’
containerd.io-1.2.6-3.3.el7.x86_64.rpm 100%[================================================================================================>] 25.86M 2.21MB/s in 15s
2020-04-05 17:02:13 (1.71 MB/s) - ‘containerd.io-1.2.6-3.3.el7.x86_64.rpm’ saved [27119348/27119348]
安装
yum install -y containerd.io-1.2.6-3.3.el7.x86_64.rpm
Last metadata expiration check: 0:07:06 ago on Sun 05 Apr 2020 04:55:32 PM CST.
Dependencies resolved.
=======================================================================================================================================================================================
Package Architecture Version Repository Size
=======================================================================================================================================================================================
Installing:
containerd.io x86_64 1.2.6-3.3.el7 @commandline 26 M
replacing runc.x86_64 1.0.0-60.rc8.module_el8.1.0+237+63e26edc
Transaction Summary
=======================================================================================================================================================================================
Install 1 Package
Total size: 26 M
Downloading Packages:
Running transaction check
Transaction check succeeded.
Running transaction test
Transaction test succeeded.
Running transaction
Preparing : 1/1
Installing : containerd.io-1.2.6-3.3.el7.x86_64 1/2
Running scriptlet: containerd.io-1.2.6-3.3.el7.x86_64 1/2
Obsoleting : runc-1.0.0-60.rc8.module_el8.1.0+237+63e26edc.x86_64 2/2
Running scriptlet: runc-1.0.0-60.rc8.module_el8.1.0+237+63e26edc.x86_64 2/2
Verifying : containerd.io-1.2.6-3.3.el7.x86_64 1/2
Verifying : runc-1.0.0-60.rc8.module_el8.1.0+237+63e26edc.x86_64 2/2
Installed:
containerd.io-1.2.6-3.3.el7.x86_64
Complete!
我们在回去安装 docker
sudo yum install docker-ce-19.03.8 docker-ce-cli-19.03.8 containerd.io
Last metadata expiration check: 0:07:52 ago on Sun 05 Apr 2020 04:55:32 PM CST.
Package containerd.io-1.2.6-3.3.el7.x86_64 is already installed.
Dependencies resolved.
=======================================================================================================================================================================================
Package Architecture Version Repository Size
=======================================================================================================================================================================================
Installing:
docker-ce x86_64 3:19.03.8-3.el7 docker-ce-stable 25 M
docker-ce-cli x86_64 1:19.03.8-3.el7 docker-ce-stable 40 M
Installing dependencies:
libcgroup x86_64 0.41-19.el8 BaseOS 70 k
Transaction Summary
=======================================================================================================================================================================================
Install 3 Packages
Total download size: 64 M
Installed size: 273 M
Is this ok [y/N]: y
Downloading Packages:
(1/3): libcgroup-0.41-19.el8.x86_64.rpm 171 kB/s | 70 kB 00:00
(2/3): docker-ce-cli-19.03.8-3.el7.x86_64.rpm 2.8 MB/s | 40 MB 00:14
(3/3): docker-ce-19.03.8-3.el7.x86_64.rpm 86 kB/s | 25 MB 04:52
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Total 224 kB/s | 64 MB 04:52
warning: /var/cache/dnf/docker-ce-stable-091d8a9c23201250/packages/docker-ce-19.03.8-3.el7.x86_64.rpm: Header V4 RSA/SHA512 Signature, key ID 621e9f35: NOKEY
Docker CE Stable - x86_64 1.5 kB/s | 1.6 kB 00:01
Importing GPG key 0x621E9F35:
Userid : "Docker Release (CE rpm) <[email protected]>"
Fingerprint: 060A 61C5 1B55 8A7F 742B 77AA C52F EB6B 621E 9F35
From : https://download.docker.com/linux/centos/gpg
Is this ok [y/N]: y
Key imported successfully
Running transaction check
Transaction check succeeded.
Running transaction test
The downloaded packages were saved in cache until the next successful transaction.
You can remove cached packages by executing 'dnf clean packages'.
Error: Transaction check error:
file /usr/share/man/man1/docker-attach.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
file /usr/share/man/man1/docker-build.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
file /usr/share/man/man1/docker-commit.1.gz from install of docker-ce-cli-1:19.03.8-3.el7.x86_64 conflicts with file from package podman-manpages-1.4.2-5.module_el8.1.0+237+63e26edc.noarch
有一个新问题
根据提示 执行命令
dnf clean packages
3 files removed
在升级下dnf
sudo dnf update
Last metadata expiration check: 0:25:16 ago on Sun 05 Apr 2020 05:58:03 PM CST.
Dependencies resolved.
=======================================================================================================================================================================================
Package Architecture Version Repository Size
=======================================================================================================================================================================================
Installing:
....................更新内容.................
systemd-udev-239-18.el8_1.4.x86_64 tuned-2.12.0-3.el8_1.1.noarch
yum-4.2.7-7.el8_1.noarch
Installed:
kernel-4.18.0-147.5.1.el8_1.x86_64 kernel-core-4.18.0-147.5.1.el8_1.x86_64 kernel-modules-4.18.0-147.5.1.el8_1.x86_64 conmon-2:2.0.6-1.module_el8.1.0+272+3e64ee36.x86_64
grub2-tools-efi-1:2.02-78.el8_1.1.x86_64
Complete!
再次安装docker
sudo yum install docker-ce docker-ce-cli containerd.io
Last metadata expiration check: 0:33:56 ago on Sun 05 Apr 2020 05:58:03 PM CST.
Package containerd.io-1.2.6-3.3.el7.x86_64 is already installed.
Dependencies resolved.
=======================================================================================================================================================================================
Package Architecture Version Repository Size
=======================================================================================================================================================================================
Installing:
docker-ce x86_64 3:19.03.8-3.el7 docker-ce-stable 25 M
docker-ce-cli x86_64 1:19.03.8-3.el7 docker-ce-stable 40 M
Installing dependencies:
libcgroup x86_64 0.41-19.el8 BaseOS 70 k
Transaction Summary
=======================================================================================================================================================================================
Install 3 Packages
Total download size: 64 M
Installed size: 273 M
Is this ok [y/N]: y
Downloading Packages:
(1/3): libcgroup-0.41-19.el8.x86_64.rpm 185 kB/s | 70 kB 00:00
(2/3): docker-ce-cli-19.03.8-3.el7.x86_64.rpm 3.1 MB/s | 40 MB 00:12
[MIRROR] docker-ce-19.03.8-3.el7.x86_64.rpm: Curl error (28): Timeout was reached for https://download.docker.com/linux/centos/7/x86_64/stable/Packages/docker-ce-19.03.8-3.el7.x86_64.rpm [Operation too slow. Less than 1000 bytes/sec transferred the last 30 seconds]
(3/3): docker-ce-19.03.8-3.el7.x86_64.rpm 24 kB/s | 25 MB 17:36
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Total 62 kB/s | 64 MB 17:36
Running transaction check
Transaction check succeeded.
Running transaction test
Transaction test succeeded.
Running transaction
Preparing : 1/1
Installing : docker-ce-cli-1:19.03.8-3.el7.x86_64 1/3
Running scriptlet: docker-ce-cli-1:19.03.8-3.el7.x86_64 1/3
Running scriptlet: libcgroup-0.41-19.el8.x86_64 2/3
Installing : libcgroup-0.41-19.el8.x86_64 2/3
Running scriptlet: libcgroup-0.41-19.el8.x86_64 2/3
Installing : docker-ce-3:19.03.8-3.el7.x86_64 3/3
Running scriptlet: docker-ce-3:19.03.8-3.el7.x86_64 3/3
Verifying : libcgroup-0.41-19.el8.x86_64 1/3
Verifying : docker-ce-3:19.03.8-3.el7.x86_64 2/3
Verifying : docker-ce-cli-1:19.03.8-3.el7.x86_64 3/3
Installed:
docker-ce-3:19.03.8-3.el7.x86_64 docker-ce-cli-1:19.03.8-3.el7.x86_64 libcgroup-0.41-19.el8.x86_64
Complete!
查看docker版本
docker -v
Docker version 19.03.8, build afacb8b启动docker 服务
sudo systemctl start docker运行一个hello-wrold 容器
docker run hello-world
Unable to find image 'hello-world:latest' locally
latest: Pulling from library/hello-world
1b930d010525: Pull complete
Digest: sha256:f9dfddf63636d84ef479d645ab5885156ae030f611a56f3a7ac7f2fdd86d7e4e
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/
[root@localhost xiajun]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
hello-world latest fce289e99eb9 15 months ago 1.84kB
[root@localhost xiajun]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
[root@localhost xiajun]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
8032055c0c83 hello-world "/hello" 4 minutes ago Exited (0) 4 minutes ago clever_buck
