原因：
龟速和加速的区别。
步骤
1）登入阿里云镜像服务中心（需使用账号登入）
地址：https://cr.console.aliyun.com/cn-shenzhen/new
2）获取地址：
image.png
3）按照要求修改OS的Docker配置文件
image.png
在/etc/docker/下查找daemon.json文件，无则创建。并写入以下的内容：
[root@localhost ~]# nano /etc/docker/daemon.json
[root@localhost ~]#
写入的内容：
{
"registry-mirrors": ["https://xxxxxxxx.mirror.aliyuncs.com"]
}
4 ) 重启daemon
[root@localhost ~]#systemctl daemon-reload
5 ) 重启docker
[root@localhost ~]# systemctl restart docker
6 ) 查看修改的后docker信息
[root@localhost ~]# docker info
Client:
Debug Mode: false
Server:
Containers: 2
Running: 0
Paused: 0
Stopped: 2
Images: 1
Server Version: 19.03.13
Storage Driver: overlay2
Backing Filesystem: xfs
Supports d_type: true
Native Overlay Diff: false
Logging Driver: json-file
Cgroup Driver: cgroupfs
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: runc
Default Runtime: runc
Init Binary: docker-init
containerd version: 8fba4e9a7d01810a393d5d25a3621dc101981175
runc version: dc9208a3303feef5b3839f4323d9beb36df0a9dd
init version: fec3683
Security Options:
seccomp
Profile: default
Kernel Version: 3.10.0-514.el7.x86_64
Operating System: CentOS Linux 7 (Core)
OSType: linux
Architecture: x86_64
CPUs: 1
Total Memory: 976.5MiB
Name: localhost.localdomain
ID: TT6R:HUR2:3AQG:JLBU:CGAO:BG5T:LMC4:FYTX:PRGV:4D56:4TAN:BGFE
Docker Root Dir: /var/lib/docker
Debug Mode: false
Registry: https://index.docker.io/v1/
Labels:
Experimental: false
Insecure Registries:
127.0.0.0/8
Registry Mirrors:
https://aiyf7r3a.mirror.aliyuncs.com/
Live Restore Enabled: false
WARNING: bridge-nf-call-iptables is disabled
WARNING: bridge-nf-call-ip6tables is disabled
[root@localhost ~]#
7 ) 测试拉取一个ubuntu:15.10的镜像
[root@localhost ~]# docker pull ubuntu:15.10
15.10: Pulling from library/ubuntu
7dcf5a444392: Pull complete
759aa75f3cee: Pull complete
3fa871dc8a2b: Pull complete
224c42ae46e7: Pull complete
Digest: sha256:02521a2d079595241c6793b2044f02eecf294034f31d6e235ac4b2b54ffc41f3
Status: Downloaded newer image for ubuntu:15.10
docker.io/library/ubuntu:15.10
[root@localhost ~]#
附加其他的对镜像的操作测试处理：
8） 查看本地的镜像
[root@localhost ~]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
hello-world latest bf756fb1ae65 9 months ago 13.3kB
ubuntu 15.10 9b9cb95443b5 4 years ago 137MB
[root@localhost ~]#
9）使用镜像跑一个示例 前台模式的启动
说明：/bin/echo "Hello world": 在启动的容器里执行的命令
[root@localhost ~]# docker run ubuntu:15.10 /bin/echo "Hello world"
Hello world
其他一些容器的基本的操作：
root@0a22083fa318:~# cd ll
bash: cd: ll: No such file or directory
root@0a22083fa318:~# cd ~
root@0a22083fa318:~# ll
total 8
drwx------. 2 root root 37 Jul 6 2016 ./
drwxr-xr-x. 1 root root 6 Oct 19 07:57 ../
-rw-r--r--. 1 root root 3106 Feb 20 2014 .bashrc
-rw-r--r--. 1 root root 140 Feb 20 2014 .profile
root@0a22083fa318:~# cd ..
root@0a22083fa318:/# ls
bin dev home lib64 mnt proc run srv tmp var
boot etc lib media opt root sbin sys usr
root@0a22083fa318:/# eixt
bash: eixt: command not found
root@0a22083fa318:/# exit
exit
[root@localhost ~]# docker run -i -t ubuntu:15.10 /bin/bash
root@a2cc1c83603a:/# exit
10）前台模式的启动 查看的相关的容器情况
[root@localhost ~]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
a2cc1c83603a ubuntu:15.10 "/bin/bash" 26 seconds ago Exited (0) 24 seconds ago elated_cartwright
0a22083fa318 ubuntu:15.10 "/bin/bash" About a minute ago Exited (127) 29 seconds ago epic_galileo
e0069b97f043 ubuntu:15.10 "/bin/echo 'Hello wo…" 3 minutes ago Exited (0) 3 minutes ago intelligent_lamport
209fc9dd3324 hello-world "/hello" 56 minutes ago Exited (0) 56 minutes ago flamboyant_knuth
d6087f654d9e hello-world "/hello" 2 hours ago Exited (0) 2 hours ago practical_wozniak
11）后台的模式启动的容器实例
[root@localhost ~]# docker run -d ubuntu:15.10 /bin/sh -c "while true; do echo hello world; sleep 1; done"
f1b40b91bb48a2cc832412b9e71860a44cddcd4fa83a82db7b64fcc9c68ad82f
[root@localhost ~]#
12）再次查看容器的情况：
[root@localhost ~]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
f1b40b91bb48 ubuntu:15.10 "/bin/sh -c 'while t…" 3 minutes ago Up 3 minutes great_tereshkova
[root@localhost ~]#
13）停止容器：
[root@localhost ~]# docker stop f1b40b91bb48
f1b40b91bb48
[root@localhost ~]#
[root@localhost ~]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
[root@localhost ~]#
开启Docker远程访问
Docker远程访问可以用于手续的，直接使用Pycharm等工具连接的到我们的Docker，然后直接的使用工具进行镜像的制作！
PS:该方法千万不要在生产环境，否则100%被挖矿!!!!!!!!!!!!!
步骤
- 1）编辑docker的宿主机文件/lib/systemd/system/docker.service
[Unit]
Description=Docker Application Container Engine
Documentation=https://docs.docker.com
BindsTo=containerd.service
After=network-online.target firewalld.service containerd.service
Wants=network-online.target
Requires=docker.socket
[Service]
Type=notify
# the default is not to use systemd for cgroups because the delegate issues still
# exists and systemd currently does not support the cgroup feature set required
# for containers run by docker
ExecStart=/usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock
ExecReload=/bin/kill -s HUP $MAINPID
TimeoutSec=0
RestartSec=2
Restart=always
# Note that StartLimit* options were moved from "Service" to "Unit" in systemd 229.
# Both the old, and new location are accepted by systemd 229 and up, so using the old location
# to make them work for either version of systemd.
StartLimitBurst=3
# Note that StartLimitInterval was renamed to StartLimitIntervalSec in systemd 230.
# Both the old, and new name are accepted by systemd 230 and up, so using the old name to make
# this option work for either version of systemd.
StartLimitInterval=60s
# Having non-zero Limit*s causes performance problems due to accounting overhead
# in the kernel. We recommend using cgroups to do container-local accounting.
LimitNOFILE=infinity
LimitNPROC=infinity
LimitCORE=infinity
# Comment TasksMax if your systemd version does not support it.
# Only systemd 226 and above support this option.
TasksMax=infinity
# set delegate yes so that systemd does not reset the cgroups of docker containers
Delegate=yes
# kill only the docker process, not all processes in the cgroup
KillMode=process
[Install]
WantedBy=multi-user.target
- 2）修改内容：
ExecStart=/usr/bin/dockerd -H tcp://0.0.0.0:2375 -H unix://var/run/docker.sock
- 3）更新修改
[root@localhost web_statistics]# systemctl daemon-reload
- 重启docker服务
[root@localhost web_statistics]# systemctl restart docker
- 测试访问情况
[root@localhost web_statistics]# curl http://localhost:2375/version
{"Platform":{"Name":"Docker Engine - Community"},"Components":[{"Name":"Engine","Version":"19.03.13","Details":{"ApiVersion":"1.40","Arch":"amd64","BuildTime":"2020-09-16T17:02:21.000000000+00:00","Experimental":"false","GitCommit":"4484c46d9d","GoVersion":"go1.13.15","KernelVersion":"3.10.0-1127.19.1.el7.x86_64","MinAPIVersion":"1.12","Os":"linux"}},{"Name":"containerd","Version":"1.3.7","Details":{"GitCommit":"8fba4e9a7d01810a393d5d25a3621dc101981175"}},{"Name":"runc","Version":"1.0.0-rc10","Details":{"GitCommit":"dc9208a3303feef5b3839f4323d9beb36df0a9dd"}},{"Name":"docker-init","Version":"0.18.0","Details":{"GitCommit":"fec3683"}}],"Version":"19.03.13","ApiVersion":"1.40","MinAPIVersion":"1.12","GitCommit":"4484c46d9d","GoVersion":"go1.13.15","Os":"linux","Arch":"amd64","KernelVersion":"3.10.0-1127.19.1.el7.x86_64","BuildTime":"2020-09-16T17:02:21.000000000+00:00"}
[root@localhost web_statistics]#
-
6）外网访问
image.png
