[root@centos8 ~]#wget https://download.docker.com/linux/static/stable/x86_64/docker-19.03.5.tgz
--2020-01-24 18:02:55-- https://download.docker.com/linux/static/stable/x86_64/docker-19.03.5.tgz
Resolving download.docker.com (download.docker.com)... 143.204.83.37, 143.204.83.32, 143.204.83.95, ...
Connecting to download.docker.com (download.docker.com)|143.204.83.37|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 63252595 (60M) [application/x-tar]
Saving to: ‘docker-19.03.5.tgz’
docker-19.03.5.tgz 100%[=========================================>] 60.32M 11.3MB/s in 5.6s
2020-01-24 18:03:02 (10.7 MB/s) - ‘docker-19.03.5.tgz’ saved [63252595/63252595]
[root@centos8 ~]#tar xvf docker-19.03.5.tgz
docker/
docker/docker-init
docker/docker
docker/dockerd
docker/runc
docker/ctr
docker/docker-proxy
docker/containerd
docker/containerd-shim
[root@centos8 ~]#cp docker/* /usr/bin/
[root@centos8 ~]#groupadd -r docker
#将Ubuntu1804或CentOS7基于包方式安装的相关文件复制到相应目录下
[root@ubuntu1804 ~]#scp /lib/systemd/system/docker.* /lib/systemd/system/containerd.service 10.0.0.8:/lib/systemd/system/
The authenticity of host '10.0.0.8 (10.0.0.8)' can't be established.
ECDSA key fingerprint is SHA256:8mUO3Wy13Ktt5pRBKaOU40avmw1x0gH5XTPK48CEWoM.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '10.0.0.8' (ECDSA) to the list of known hosts.
root@10.0.0.8's password:
docker.service 100% 1683 650.8KB/s 00:00 docker.socket 100% 197 303.3KB/s 00:00
containerd.service 100% 487 516.6KB/s 00:00
[root@centos8 ~]#systemctl daemon-reload
[root@centos8 ~]#systemctl enable --now docker
[root@centos8 ~]#docker version
Client: Docker Engine - Community
Version: 19.03.5
API version: 1.40
Go version: go1.12.12
Git commit: 633a0ea838
Built: Wed Nov 13 07:22:05 2019
OS/Arch: linux/amd64
Experimental: false
Server: Docker Engine - Community
Engine:
Version: 19.03.5
API version: 1.40 (minimum version 1.12)
Go version: go1.12.12
Git commit: 633a0ea838
Built: Wed Nov 13 07:28:45 2019
OS/Arch: linux/amd64
Experimental: false
containerd:
Version: v1.2.10
GitCommit: b34a5c8af56e510852c35414db4c1f4fa6172339
runc:
Version: 1.0.0-rc8+dev
GitCommit: 3e425f80a8c931f88e6d94a8c831b9d5aa481657
docker-init:
Version: 0.18.0
GitCommit: fec3683
[root@centos8 ~]#docker run hello-world
Unable to find image 'hello-world:latest' locally
latest: Pulling from library/hello-world
1b930d010525: Pull complete
Digest: sha256:9572f7cdcee8591948c2963463447a53466950b3fc15a247fcad1917ca215a2f
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@centos8 ~]#pstree -p
systemd(1)─┬─NetworkManager(660)─┬─{NetworkManager}(669)
│ └─{NetworkManager}(671)
├─VGAuthService(662)
├─agetty(718)
├─atd(712)
├─auditd(625)───{auditd}(627)
├─automount(905)─┬─{automount}(912)
│ ├─{automount}(913)
│ ├─{automount}(930)
│ └─{automount}(937)
├─containerd(679)─┬─{containerd}(693)
│ ├─{containerd}(694)
│ ├─{containerd}(696)
│ ├─{containerd}(704)
│ ├─{containerd}(705)
│ ├─{containerd}(707)
│ └─{containerd}(708)
├─crond(713)
├─dbus-daemon(658)
├─dockerd(908)─┬─{dockerd}(922)
│ ├─{dockerd}(923)
│ ├─{dockerd}(925)
│ ├─{dockerd}(944)
│ ├─{dockerd}(1028)
│ ├─{dockerd}(1100)
│ └─{dockerd}(1114)
├─polkitd(659)─┬─{polkitd}(670)
│ ├─{polkitd}(672)
│ ├─{polkitd}(677)
│ ├─{polkitd}(678)
│ └─{polkitd}(701)
├─rngd(664)───{rngd}(666)
├─rsyslogd(906)─┬─{rsyslogd}(911)
│ └─{rsyslogd}(914)
├─sshd(675)───sshd(1370)───sshd(1382)───bash(1383)───pstree(1441)
├─sssd(661)─┬─sssd_be(688)
│ └─sssd_nss(703)
├─systemd(1373)───(sd-pam)(1376)
├─systemd-journal(551)
├─systemd-logind(709)
├─systemd-udevd(580)
├─tuned(674)─┬─{tuned}(915)
│ ├─{tuned}(934)
│ └─{tuned}(948)
└─vmtoolsd(663)