Docker&amp；K8s---Docker的安装、部署、镜像管理、容器操作、Dockerfile_izusz

Docker安装和部署

安装

阿里云ECS

[root@iZuf6g4e6vhdv58sz2z1klZ ~]# uname -a
Linux iZuf6g4e6vhdv58sz2z1klZ 4.18.0-193.28.1.el8_2.x86_64 #1 SMP Thu Oct 22 00:20:22 UTC 2020 x86\_64 x86\_64 x
[root@iZuf6g4e6vhdv58sz2z1klZ ~]# cat /etc/redhat-release 
CentOS Linux release 8.2.2004 (Core) 
[root@iZuf6g4e6vhdv58sz2z1klZ ~]# getenforce 
Disabled
[root@iZuf6g4e6vhdv58sz2z1klZ ~]# systemctl stop firewalld
[root@iZuf6g4e6vhdv58sz2z1klZ ~]# free -m
              total        used        free      shared  buff/cache   available
Mem:           1723        1115         139           3         468         440
Swap:          1024         301         723
# epel源
[root@iZuf6g4e6vhdv58sz2z1klZ ~]# yum install epel-release -y
Repository epel is listed more than once in the configuration
Last metadata expiration check: 2:47:33 ago on Wed 16 Jun 2021 03:07:22 PM CST.
Package epel-release-8-10.el8.noarch is already installed.
Dependencies resolved.
Nothing to do.
Complete!


# 安装docker
[root@iZuf6g4e6vhdv58sz2z1klZ ~]# yum install -y yum-utils
[root@iZuf6g4e6vhdv58sz2z1klZ ~]# yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
[root@iZuf6g4e6vhdv58sz2z1klZ ~]# yum list docker-ce --showduplicate
Repository epel is listed more than once in the configuration
Docker CE Stable - x86_64                                                     78 kB/s |  14 kB     00:00    
Available Packages
docker-ce.x86_64                              3:19.03.13-3.el8                               docker-ce-stable
docker-ce.x86_64                              3:19.03.14-3.el8                               docker-ce-stable
docker-ce.x86_64                              3:19.03.15-3.el8                               docker-ce-stable
docker-ce.x86_64                              3:20.10.0-3.el8                                docker-ce-stable
docker-ce.x86_64                              3:20.10.1-3.el8                                docker-ce-stable
docker-ce.x86_64                              3:20.10.2-3.el8                                docker-ce-stable
docker-ce.x86_64                              3:20.10.3-3.el8                                docker-ce-stable
docker-ce.x86_64                              3:20.10.4-3.el8                                docker-ce-stable
docker-ce.x86_64                              3:20.10.5-3.el8                                docker-ce-stable
docker-ce.x86_64                              3:20.10.6-3.el8                                docker-ce-stable
docker-ce.x86_64                              3:20.10.7-3.el8                                docker-ce-stable
[root@iZuf6g4e6vhdv58sz2z1klZ ~]# yum install docker-ce -y

部署

# 开机自启动
[root@iZuf6g4e6vhdv58sz2z1klZ ~]# systemctl enable docker
Created symlink /etc/systemd/system/multi-user.target.wants/docker.service → /usr/lib/systemd/system/docker.service.
# 启动docker
[root@iZuf6g4e6vhdv58sz2z1klZ ~]# systemctl start docker
# 配置
[root@iZuf6g4e6vhdv58sz2z1klZ ~]#vi /etc/docker/daemon.json

配置文件

{
	"graph": "/mydata/docker",
	"storage-driver": "overlay2",
	"insecure-registries": ["registry.access.redhat.com", "quay.io"],
	"registry-mirrors": ["https://q2gr04ke.mirror.aliyuncs.com/"],
    "bip": "172.17.0.1/24",
    "exec-opts": ["native.cgroupdriver=systemd"],
    "live-restore":true
}

docker info

查看容器信息和启动是否正常

[root@iZuf6g4e6vhdv58sz2z1klZ ~]# systemctl restart docker
[root@iZuf6g4e6vhdv58sz2z1klZ ~]# docker info
Client:
 Context:    default
 Debug Mode: false
 Plugins:
  app: Docker App (Docker Inc., v0.9.1-beta3)
  buildx: Build with BuildKit (Docker Inc., v0.5.1-docker)
  scan: Docker Scan (Docker Inc., v0.8.0)

Server:
 Containers: 0
  Running: 0
  Paused: 0
  Stopped: 0
 Images: 0
 Server Version: 20.10.7
 Storage Driver: overlay2
  Backing Filesystem: xfs
  Supports d_type: true
  Native Overlay Diff: true
  userxattr: false
 Logging Driver: json-file
 Cgroup Driver: systemd
 Cgroup Version: 1
 Plugins:
  Volume: local
  Network: bridge host ipvlan macvlan null overlay
  Log: awslogs fluentd gcplogs gelf journald json-file local logentries splunk syslog
 Swarm: inactive
 Runtimes: io.containerd.runc.v2 io.containerd.runtime.v1.linux runc
 Default Runtime: runc
 Init Binary: docker-init
 containerd version: d71fcd7d8303cbf684402823e425e9dd2e99285d
 runc version: b9ee9c6314599f1b4a7f497e1f1f856fe433d3b7
 init version: de40ad0
 Security Options:
  seccomp
   Profile: default
 Kernel Version: 4.18.0-193.28.1.el8_2.x86_64
 Operating System: CentOS Linux 8 (Core)
 OSType: linux
 Architecture: x86_64
 CPUs: 2
 Total Memory: 1.683GiB
 Name: iZuf6g4e6vhdv5