容器化部署技术在自动化部署过程中有着举足轻重的位置，本章将讲解docker的安装部署。
安装过程主要参考 docker官网的文档：https://docs.docker.com/engine/install/centos/
安装相关依赖
sudo yum install -y yum-utils显示信息如下：
[zhuzl@VM-16-6-centos /]$ sudo yum install -y yum-utils
Loaded plugins: fastestmirror, langpacks
Determining fastest mirrors
epel | 4.7 kB 00:00:00
extras | 2.9 kB 00:00:00
os | 3.6 kB 00:00:00
updates | 2.9 kB 00:00:00
(1/3): epel/7/x86_64/updateinfo | 1.0 MB 00:00:00
(2/3): updates/7/x86_64/primary_db | 13 MB 00:00:00
(3/3): epel/7/x86_64/primary_db | 7.0 MB 00:00:01
Package yum-utils-1.1.31-54.el7_8.noarch already installed and latest version
Nothing to do设置yum 仓库
sudo yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo显示显示如下：
[zhuzl@VM-16-6-centos /]$ sudo yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
Loaded plugins: fastestmirror, langpacks
adding repo from: https://download.docker.com/linux/centos/docker-ce.repo
grabbing file https://download.docker.com/linux/centos/docker-ce.repo to /etc/yum.repos.d/docker-ce.repo
repo saved to /etc/yum.repos.d/docker-ce.repo
安装 Docker
[zhuzl@VM-16-6-centos /]$ sudo yum install docker-ce docker-ce-cli containerd.io
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
docker-ce-stable | 3.5 kB 00:00:00
(1/2): docker-ce-stable/7/x86_64/primary_db | 70 kB 00:00:00
(2/2): docker-ce-stable/7/x86_64/updateinfo | 55 B 00:00:01
Resolving Dependencies
--> Running transaction check
---> Package containerd.io.x86_64 0:1.4.12-3.1.el7 will be installed
--> Processing Dependency: container-selinux >= 2:2.74 for package: containerd.io-1.4.12-3.1.el7.x86_64
---> Package docker-ce.x86_64 3:20.10.12-3.el7 will be installed
--> Processing Dependency: docker-ce-rootless-extras for package: 3:docker-ce-20.10.12-3.el7.x86_64
--> Processing Dependency: libcgroup for package: 3:docker-ce-20.10.12-3.el7.x86_64
---> Package docker-ce-cli.x86_64 1:20.10.12-3.el7 will be installed
--> Processing Dependency: docker-scan-plugin(x86-64) for package: 1:docker-ce-cli-20.10.12-3.el7.x86_64
--> Running transaction check
---> Package container-selinux.noarch 2:2.119.2-1.911c772.el7_8 will be installed
--> Processing Dependency: policycoreutils-python for package: 2:container-selinux-2.119.2-1.911c772.el7_8.noarch
---> Package docker-ce-rootless-extras.x86_64 0:20.10.12-3.el7 will be installed
--> Processing Dependency: fuse-overlayfs >= 0.7 for package: docker-ce-rootless-extras-20.10.12-3.el7.x86_64
--> Processing Dependency: slirp4netns >= 0.4 for package: docker-ce-rootless-extras-20.10.12-3.el7.x86_64
---> Package docker-scan-plugin.x86_64 0:0.12.0-3.el7 will be installed
---> Package libcgroup.x86_64 0:0.41-21.el7 will be installed
--> Running transaction check
---> Package fuse-overlayfs.x86_64 0:0.7.2-6.el7_8 will be installed
--> Processing Dependency: libfuse3.so.3(FUSE_3.2)(64bit) for package: fuse-overlayfs-0.7.2-6.el7_8.x86_64
--> Processing Dependency: libfuse3.so.3(FUSE_3.0)(64bit) for package: fuse-overlayfs-0.7.2-6.el7_8.x86_64
--> Processing Dependency: libfuse3.so.3()(64bit) for package: fuse-overlayfs-0.7.2-6.el7_8.x86_64
---> Package policycoreutils-python.x86_64 0:2.5-34.el7 will be installed
--> Processing Dependency: setools-libs >= 3.3.8-4 for package: policycoreutils-python-2.5-34.el7.x86_64
--> Processing Dependency: libsemanage-python >= 2.5-14 for package: policycoreutils-python-2.5-34.el7.x86_64
--> Processing Dependency: audit-libs-python >= 2.1.3-4 for package: policycoreutils-python-2.5-34.el7.x86_64
--> Processing Dependency: python-IPy for package: policycoreutils-python-2.5-34.el7.x86_64
--> Processing Dependency: libqpol.so.1(VERS_1.4)(64bit) for package: policycoreutils-python-2.5-34.el7.x86_64
--> Processing Dependency: libqpol.so.1(VERS_1.2)(64bit) for package: policycoreutils-python-2.5-34.el7.x86_64
--> Processing Dependency: libapol.so.4(VERS_4.0)(64bit) for package: policycoreutils-python-2.5-34.el7.x86_64
--> Processing Dependency: checkpolicy for package: policycoreutils-python-2.5-34.el7.x86_64
--> Processing Dependency: libqpol.so.1()(64bit) for package: policycoreutils-python-2.5-34.el7.x86_64
--> Processing Dependency: libapol.so.4()(64bit) for package: policycoreutils-python-2.5-34.el7.x86_64
---> Package slirp4netns.x86_64 0:0.4.3-4.el7_8 will be installed
--> Running transaction check
---> Package audit-libs-python.x86_64 0:2.8.5-4.el7 will be installed
---> Package checkpolicy.x86_64 0:2.5-8.el7 will be installed
---> Package fuse3-libs.x86_64 0:3.6.1-4.el7 will be installed
---> Package libsemanage-python.x86_64 0:2.5-14.el7 will be installed
---> Package python-IPy.noarch 0:0.75-6.el7 will be installed
---> Package setools-libs.x86_64 0:3.3.8-4.el7 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
==================================================================================================================================================
Package Arch Version Repository Size
==================================================================================================================================================
Installing:
containerd.io x86_64 1.4.12-3.1.el7 docker-ce-stable 28 M
docker-ce x86_64 3:20.10.12-3.el7 docker-ce-stable 23 M
docker-ce-cli x86_64 1:20.10.12-3.el7 docker-ce-stable 30 M
Installing for dependencies:
audit-libs-python x86_64 2.8.5-4.el7 os 76 k
checkpolicy x86_64 2.5-8.el7 os 295 k
container-selinux noarch 2:2.119.2-1.911c772.el7_8 extras 40 k
docker-ce-rootless-extras x86_64 20.10.12-3.el7 docker-ce-stable 8.0 M
docker-scan-plugin x86_64 0.12.0-3.el7 docker-ce-stable 3.7 M
fuse-overlayfs x86_64 0.7.2-6.el7_8 extras 54 k
fuse3-libs x86_64 3.6.1-4.el7 extras 82 k
libcgroup x86_64 0.41-21.el7 os 66 k
libsemanage-python x86_64 2.5-14.el7 os 113 k
policycoreutils-python x86_64 2.5-34.el7 os 457 k
python-IPy noarch 0.75-6.el7 os 32 k
setools-libs x86_64 3.3.8-4.el7 os 620 k
slirp4netns x86_64 0.4.3-4.el7_8 extras 81 k
Transaction Summary
==================================================================================================================================================
Install 3 Packages (+13 Dependent packages)
Total download size: 95 M
Installed size: 387 M
Is this ok [y/d/N]: y
Downloading packages:
(1/16): container-selinux-2.119.2-1.911c772.el7_8.noarch.rpm | 40 kB 00:00:00
(2/16): audit-libs-python-2.8.5-4.el7.x86_64.rpm | 76 kB 00:00:00
(3/16): checkpolicy-2.5-8.el7.x86_64.rpm | 295 kB 00:00:00
warning: /var/cache/yum/x86_64/7/docker-ce-stable/packages/docker-ce-20.10.12-3.el7.x86_64.rpm: Header V4 RSA/SHA512 Signature, key ID 621e9f35: NOKEY
Public key for docker-ce-20.10.12-3.el7.x86_64.rpm is not installed
(4/16): docker-ce-20.10.12-3.el7.x86_64.rpm | 23 MB 00:03:30
(5/16): containerd.io-1.4.12-3.1.el7.x86_64.rpm | 28 MB 00:11:41
(6/16): docker-ce-rootless-extras-20.10.12-3.el7.x86_64.rpm | 8.0 MB 00:02:47
(7/16): fuse-overlayfs-0.7.2-6.el7_8.x86_64.rpm | 54 kB 00:00:00
(8/16): fuse3-libs-3.6.1-4.el7.x86_64.rpm | 82 kB 00:00:00
(9/16): libcgroup-0.41-21.el7.x86_64.rpm | 66 kB 00:00:00
(10/16): libsemanage-python-2.5-14.el7.x86_64.rpm | 113 kB 00:00:00
(11/16): python-IPy-0.75-6.el7.noarch.rpm | 32 kB 00:00:00
(12/16): policycoreutils-python-2.5-34.el7.x86_64.rpm | 457 kB 00:00:00
(13/16): slirp4netns-0.4.3-4.el7_8.x86_64.rpm | 81 kB 00:00:00
(14/16): setools-libs-3.3.8-4.el7.x86_64.rpm | 620 kB 00:00:00
(15/16): docker-scan-plugin-0.12.0-3.el7.x86_64.rpm | 3.7 MB 00:00:48
(16/16): docker-ce-cli-20.10.12-3.el7.x86_64.rpm | 30 MB 00:15:19
--------------------------------------------------------------------------------------------------------------------------------------------------
Total 86 kB/s | 95 MB 00:18:49
Retrieving key from https://download.docker.com/linux/centos/gpg
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://download.docker.com/linux/centos/gpg
Is this ok [y/N]: y
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Installing : docker-scan-plugin-0.12.0-3.el7.x86_64 1/16
Installing : 1:docker-ce-cli-20.10.12-3.el7.x86_64 2/16
Installing : libcgroup-0.41-21.el7.x86_64 3/16
Installing : setools-libs-3.3.8-4.el7.x86_64 4/16
Installing : audit-libs-python-2.8.5-4.el7.x86_64 5/16
Installing : python-IPy-0.75-6.el7.noarch 6/16
Installing : slirp4netns-0.4.3-4.el7_8.x86_64 7/16
Installing : libsemanage-python-2.5-14.el7.x86_64 8/16
Installing : fuse3-libs-3.6.1-4.el7.x86_64 9/16
Installing : fuse-overlayfs-0.7.2-6.el7_8.x86_64 10/16
Installing : checkpolicy-2.5-8.el7.x86_64 11/16
Installing : policycoreutils-python-2.5-34.el7.x86_64 12/16
Installing : 2:container-selinux-2.119.2-1.911c772.el7_8.noarch 13/16
setsebool: SELinux is disabled.
Installing : containerd.io-1.4.12-3.1.el7.x86_64 14/16
Installing : docker-ce-rootless-extras-20.10.12-3.el7.x86_64 15/16
Installing : 3:docker-ce-20.10.12-3.el7.x86_64 16/16
Verifying : checkpolicy-2.5-8.el7.x86_64 1/16
Verifying : fuse3-libs-3.6.1-4.el7.x86_64 2/16
Verifying : 1:docker-ce-cli-20.10.12-3.el7.x86_64 3/16
Verifying : fuse-overlayfs-0.7.2-6.el7_8.x86_64 4/16
Verifying : libsemanage-python-2.5-14.el7.x86_64 5/16
Verifying : docker-scan-plugin-0.12.0-3.el7.x86_64 6/16
Verifying : slirp4netns-0.4.3-4.el7_8.x86_64 7/16
Verifying : 2:container-selinux-2.119.2-1.911c772.el7_8.noarch 8/16
Verifying : python-IPy-0.75-6.el7.noarch 9/16
Verifying : policycoreutils-python-2.5-34.el7.x86_64 10/16
Verifying : audit-libs-python-2.8.5-4.el7.x86_64 11/16
Verifying : docker-ce-rootless-extras-20.10.12-3.el7.x86_64 12/16
Verifying : containerd.io-1.4.12-3.1.el7.x86_64 13/16
Verifying : setools-libs-3.3.8-4.el7.x86_64 14/16
Verifying : 3:docker-ce-20.10.12-3.el7.x86_64 15/16
Verifying : libcgroup-0.41-21.el7.x86_64 16/16
Installed:
containerd.io.x86_64 0:1.4.12-3.1.el7 docker-ce.x86_64 3:20.10.12-3.el7 docker-ce-cli.x86_64 1:20.10.12-3.el7
Dependency Installed:
audit-libs-python.x86_64 0:2.8.5-4.el7 checkpolicy.x86_64 0:2.5-8.el7 container-selinux.noarch 2:2.119.2-1.911c772.el7_8
docker-ce-rootless-extras.x86_64 0:20.10.12-3.el7 docker-scan-plugin.x86_64 0:0.12.0-3.el7 fuse-overlayfs.x86_64 0:0.7.2-6.el7_8
fuse3-libs.x86_64 0:3.6.1-4.el7 libcgroup.x86_64 0:0.41-21.el7 libsemanage-python.x86_64 0:2.5-14.el7
policycoreutils-python.x86_64 0:2.5-34.el7 python-IPy.noarch 0:0.75-6.el7 setools-libs.x86_64 0:3.3.8-4.el7
slirp4netns.x86_64 0:0.4.3-4.el7_8
Complete!
启动 Docker 并配置自启动
启动Docker
sudo systemctl start docker设置开机自启动
# 检查docker版本
[zhuzl@VM-16-6-centos wldata]$ docker -v
Docker version 20.10.12, build e91ed57
# 查看docker已有镜像
[zhuzl@VM-16-6-centos wldata]$ sudo docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
# 设置docker开机启动
[zhuzl@VM-16-6-centos wldata]$ sudo systemctl enable docker
Created symlink from /etc/systemd/system/multi-user.target.wants/docker.service to /usr/lib/systemd/system/docker.service.
[zhuzl@VM-16-6-centos wldata]$
一些配置
使用阿里云配置镜像加速
sudo mkdir -p /etc/docker
sudo tee /etc/docker/daemon.json <<-'EOF'
{
"registry-mirrors": ["https://9643wkwg.mirror.aliyuncs.com"]
}
EOF
sudo systemctl daemon-reload
sudo systemctl restart docker安装portainer
链接地址：https://docs.portainer.io/v/ce-2.11/start/install/server/docker/linux
安装命令
# 创建portainer挂载镜像
sudo docker volume create portainer_data
# 查看磁盘卷信息
sudo docker inspect portainer_data
# docker方式运行portainer
sudo docker run -d -p 8000:8000 -p 9000:9000 -p 9443:9443 --name portainer --restart=always -v /var/run/docker.sock:/var/run/docker.sock -v portainer_data:/data portainer/portainer-ce:2.11.0可以使用nginx代理9000端口端外提供服务
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