コンテナ2:centos 7でdocker環境を導入する
前言
コマンドセットリファレンスアドレス:https://www.runoob.com/docker/centos-docker-install.html
実際の操作
カーネルの準備
配置のインストール(脱$記号)
#yumパッケージインデックスの更新(次はぼやけているので別々に書く)yum makecache fast
#1、最新のDocker Engine-Communityをインストールし、yumパッケージインデックスを更新する
#2、バージョンのインストールを指定:
操作:y続行操作:y
dockerの起動
Hello from Docker! インストール完了
コマンドセットリファレンスアドレス:https://www.runoob.com/docker/centos-docker-install.html
実際の操作
カーネルの準備
#
$ uname -r
3.10.0-957.el7.x86_64
# AUFS ，
$ ls -l /sys/class/misc/device-mapper
lrwxrwxrwx. 1 root root 0 Jun 17 17:57 /sys/class/misc/device-mapper -> ../../devices/virtual/misc/device-mapper
# Device Mapper， device-mapper
$ sudo yum install -y device-mapper
# dm_mod
$ sudo modprobe dm_mod
#CentOS7
# admin $ su-
#yum（ Yellow dog Updater, Modified） Fedora RedHat SUSE Shell
#yum [options] [command] [package ...]
#GCC:GNU Compiler Collection(GUN )， C、C++、JAV、Fortran、Pascal、Object-C、Ada
$ yum -y install gcc
$ yum -y install gcc-c++
yum ， ，
配置のインストール(脱$記号)
# , yum ，
yum remove docker \ docker-client \ docker-client-latest \ docker-common \ docker-latest \ docker-latest-logrotate \ docker-logrotate \ docker-selinux \ docker-engine-selinux \ docker-engine
# （ ）
yum install -y yum-utils device-mapper-persistent-data lvm2
# （ ）
yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
（ ， ）
yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
#yumパッケージインデックスの更新(次はぼやけているので別々に書く)yum makecache fast
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
* base: mirrors.cqu.edu.cn
* extras: mirrors.cqu.edu.cn
* updates: mirrors.cqu.edu.cn
base | 3.6 kB 00:00:00
docker-ce-stable | 3.5 kB 00:00:00
extras | 2.9 kB 00:00:00
updates | 2.9 kB 00:00:00
(1/2): docker-ce-stable/x86_64/updateinfo | 55 B 00:00:02
(2/2): docker-ce-stable/x86_64/primary_db | 45 kB 00:00:02
Metadata Cache Created
#1、最新のDocker Engine-Communityをインストールし、yumパッケージインデックスを更新する
sudo yum install docker-ce docker-ce-cli containerd.io
#2、バージョンのインストールを指定:
#
$ yum list docker-ce --showduplicates | sort -r
#$ sudo yum install docker-ce-<VERSION_STRING> docker-ce-cli-<VERSION_STRING> containerd.io
3:19.03.7-3.el7
yum install docker-ce-3:19.03.7-3.el7 docker-ce-cli-3:19.03.7-3.el7 containerd.io
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
* base: mirrors.cqu.edu.cn
* extras: mirrors.cqu.edu.cn
* updates: mirrors.cqu.edu.cn
No package docker-ce-3:19.03.7-3.el7 available.
No package docker-ce-cli-3:19.03.7-3.el7 available.
Resolving Dependencies
--> Running transaction check
---> Package containerd.io.x86_64 0:1.2.13-3.2.el7 will be installed
--> Processing Dependency: container-selinux >= 2:2.74 for package: containerd.io-1.2.13-3.2.el7.x86_64
--> Running transaction check
---> Package container-selinux.noarch 2:2.119.1-1.c57a6f9.el7 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
=========================================================================================================
Package Arch Version Repository Size
=========================================================================================================
Installing:
containerd.io x86_64 1.2.13-3.2.el7 docker-ce-stable 25 M
Installing for dependencies:
container-selinux noarch 2:2.119.1-1.c57a6f9.el7 extras 40 kzao
Transaction Summary
=========================================================================================================
Install 1 Package (+1 Dependent package)
Total download size: 25 M
Installed size: 97 M
Is this ok [y/d/N]:
操作:y続行操作:y
Downloading packages:
(1/2): container-selinux-2.119.1-1.c57a6f9.el7.noarch.rpm | 40 kB 00:00:00
warning: /var/cache/yum/x86_64/7/docker-ce-stable/packages/containerd.io-1.2.13-3.2.el7.x86_64.rpm: Header V4 RSA/SHA512 Signature, key ID 621e9f35: NOKEY
Public key for containerd.io-1.2.13-3.2.el7.x86_64.rpm is not installed
(2/2): containerd.io-1.2.13-3.2.el7.x86_64.rpm | 25 MB 00:00:59
---------------------------------------------------------------------------------------------------------
Total 438 kB/s | 25 MB 00:00:59
Retrieving key from https://mirrors.aliyun.com/docker-ce/linux/centos/gpg
Importing GPG key 0x621E9F35:
Userid : "Docker Release (CE rpm) "
Fingerprint: 060a 61c5 1b55 8a7f 742b 77aa c52f eb6b 621e 9f35
From : https://mirrors.aliyun.com/docker-ce/linux/centos/gpg
....
Installed:
containerd.io.x86_64 0:1.2.13-3.2.el7
Dependency Installed:
container-selinux.noarch 2:2.119.1-1.c57a6f9.el7
Complete!
dockerの起動
sudo systemctl start docker
Failed to start docker.service: Unit not found
#
yum update（ ， ）
yum -y update ，
yum -y upgrade ，
（ ：shutdown -r now）
yum -y install docker-ce
Installed:
docker-ce.x86_64 3:19.03.12-3.el7
Dependency Installed:
docker-ce-cli.x86_64 1:19.03.12-3.el7
# hello-world Docker Engine-Community
sudo docker run hello-world
docker version
Hello from Docker! インストール完了