一、查看操作系統(tǒng)版本
1、在Linux操作系統(tǒng)中，可以使用以下命令來查看操作系統(tǒng)版本：
$ cat /etc/os-release
查詢結(jié)果：系統(tǒng)版本為 Centos 8
[root@06 ~]# cat /etc/os-release
NAME="CentOS Linux"
VERSION="8 (Core)"
ID="centos"
ID_LIKE="rhel fedora"
VERSION_ID="8"
PLATFORM_ID="platform:el8"
PRETTY_NAME="CentOS Linux 8 (Core)"
ANSI_COLOR="0;31"
CPE_NAME="cpe:/o:centos:centos:8"
HOME_URL="https://www.centos.org/"
BUG_REPORT_URL="https://bugs.centos.org/"
CENTOS_MANTISBT_PROJECT="CentOS-8"
CENTOS_MANTISBT_PROJECT_VERSION="8"
REDHAT_SUPPORT_PRODUCT="centos"
REDHAT_SUPPORT_PRODUCT_VERSION="8"
[root@06 ~]# cat /etc/redhat-release
CentOS Linux release 8.0.1905 (Core)
2、用hostnamectl查詢相關(guān)信息
$ hostnamectl
查詢結(jié)果如下：操作系統(tǒng)為centos 8
[root@06 ~]# hostnamectl
Static hostname: 06.novalocal
Icon name: computer-vm
Chassis: vm
Machine ID: 88108a625cf94232b28252b637882a24
Boot ID: 9d2f87d14be5492e9407c1438d0489d9
Virtualization: kvm
Operating System: CentOS Linux 8 (Core)
CPE OS Name: cpe:/o:centos:centos:8
Kernel: Linux 4.18.0-80.el8.x86_64
Architecture: x86-64
二、查詢系統(tǒng)的配置
1、所有信息 lscpu
$ lscpu
查詢結(jié)果如下：CPU為16核
[root@06 ~]# lscpu
Architecture: x86_64 ##cpu架構(gòu)
CPU op-mode(s): 32-bit, 64-bit
Byte Order: Little Endian
CPU(s): 16 ##總共有16核
On-line CPU(s) list: 0-15
Thread(s) per core: 2 ##每個(gè)cpu核，只能支持2個(gè)線程.
Core(s) per socket: 8 ##每個(gè)cpu，有8個(gè)核
Socket(s): 1 ##總共有1個(gè)cpu
NUMA node(s): 1
Vendor ID: GenuineIntel
CPU family: 6
Model: 85
Model name: Intel Xeon Processor (Cascadelake)
Stepping: 6
CPU MHz: 2095.078
BogoMIPS: 4190.15
Hypervisor vendor: KVM
Virtualization type: full
L1d cache: 32K
L1i cache: 32K
L2 cache: 4096K
L3 cache: 16384K
NUMA node0 CPU(s): 0-15
2、查看內(nèi)存信息
$ free -h
查詢結(jié)果如下：內(nèi)存為64G
[root@06 ~]# free -h
total used free shared buff/cache available
Mem: 62Gi 456Mi 61Gi 40Mi 413Mi 61Gi
Swap: 0B 0B 0B
3、查看磁盤信息
$ fdisk -l
查詢結(jié)果如下：磁盤存儲500G
[root@06 ~]# fdisk -l
Disk /dev/vda: 500 GiB, 536870912000 bytes, 1048576000 sectors #表示這是一個(gè)名為/dev/vda的硬盤，總?cè)萘繛?00 GB
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0xeb6c4423
Device Boot Start End Sectors Size Id Type
/dev/vda1 * 2048 1026047 1024000 500M 83 Linux #占用500M
/dev/vda2 1026048 1048575966 1047549919 499.5G 83 Linux #占用499.5G
Disk /dev/vdb: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x00000000
三、查詢是否安裝過docker
1、操作命令如下，本機(jī)中沒有安裝docker
[root@06 ~]# docker -v
-bash: docker: command not found
[root@06 ~]# docker version
-bash: docker: command not found
[root@06 ~]# whereis docker
docker:
[root@06 ~]# which docker
/usr/bin/which: no docker in (/usr/local/sbin:/usr/bin:/bin:/usr/sbin:/sbin:/root/bin)
四、下載離線安裝包
1、登錄官網(wǎng)下載
從官網(wǎng)中選擇相應(yīng)的版本，我選擇了最新的包，在聯(lián)網(wǎng)的環(huán)境下載到本地備用
https://download.docker.com/linux/static/stable/x86_64/docker-24.0.6.tgz
五、安裝docker
1、在centos8中創(chuàng)建文件夾，執(zhí)行以下命令
$ mkdir /data/iot #這里自己定義文件夾的名稱
結(jié)果如下：
[root@06 iot]# pwd
/data/iot
2、把下載的 docker-24.0.6.tgz 上傳到/data/iot 文件夾中,可以通過FinalShell工具
結(jié)果如下：
[root@06 iot]# pwd
/data/iot
[root@06 iot]# ll
total 68164
-rw-r--r-- 1 root root 69797795 Oct 8 16:42 docker-24.0.6.tgz
[root@06 iot]# ls
docker-24.0.6.tgz
3、解壓軟件包
使用以下命令
$ tar -zxvf docker-24.0.6.tgz
執(zhí)行結(jié)果如下：
[root@06 iot]# tar -zxvf docker-24.0.6.tgz
docker/
docker/docker
docker/docker-init
docker/dockerd
docker/runc
docker/ctr
docker/containerd-shim-runc-v2
docker/containerd
docker/docker-proxy
4、復(fù)制docker目錄下的文件到/usr/bin目錄下
查看解壓后的目錄，我們可以發(fā)現(xiàn)都是一些可以執(zhí)行文件，我們將這些文件全部復(fù)制到/usr/bin目錄下。
[root@06 docker]# ll
total 182244
-rwxr-xr-x 1 1000 1000 39129088 Sep 4 20:34 containerd
-rwxr-xr-x 1 1000 1000 12374016 Sep 4 20:34 containerd-shim-runc-v2
-rwxr-xr-x 1 1000 1000 19140608 Sep 4 20:34 ctr
-rwxr-xr-x 1 1000 1000 34752096 Sep 4 20:34 docker
-rwxr-xr-x 1 1000 1000 63346888 Sep 4 20:34 dockerd
-rwxr-xr-x 1 1000 1000 761712 Sep 4 20:34 docker-init
-rwxr-xr-x 1 1000 1000 1965694 Sep 4 20:34 docker-proxy
-rwxr-xr-x 1 1000 1000 15142440 Sep 4 20:34 runc
執(zhí)行命令
[root@06 iot]# pwd
/data/iot
[root@06 iot]# cp docker/* /usr/bin/
5、創(chuàng)建docker.service文件
進(jìn)入到/usr/lib/systemd/system/目錄下，我們編輯創(chuàng)建docker.service文件，用于管理docker服務(wù)，復(fù)制黏貼如下內(nèi)容即可。
$ vim /usr/lib/systemd/system/docker.service
復(fù)制粘貼以下內(nèi)容，進(jìn)行保存wq!
[Unit]
Description=Docker Application Container Engine
Documentation=http://docs.docker.com
After=network.target docker.socket
[Service]
Type=notify
EnvironmentFile=-/run/flannel/docker
WorkingDirectory=/usr/local/bin
ExecStart=/usr/bin/dockerd \
-H tcp://0.0.0.0:4243 \
-H unix:///var/run/docker.sock \
--selinux-enabled=false \
--log-opt max-size=100m
ExecReload=/bin/kill -s HUP $MAINPID
LimitNOFILE=infinity
LimitNPROC=infinity
LimitCORE=infinity
TimeoutStartSec=0
Delegate=yes
執(zhí)行操作如下
[root@06 iot]# cd /usr/lib/systemd/system/
[root@06 system]# pwd
/usr/lib/systemd/system
[root@06 system]# vim /usr/lib/systemd/system/docker.service
六、重新加載daemon-reload
[root@06 system]# systemctl daemon-reload
七、 啟動(dòng)docker
$ systemctl start docker
八、 查看docker版本
[root@06 system]# docker version
Client:
Version: 24.0.6
API version: 1.43
Go version: go1.20.7
Git commit: ed223bc
Built: Mon Sep 4 12:30:51 2023
OS/Arch: linux/amd64
Context: default
Server: Docker Engine - Community
Engine:
Version: 24.0.6
API version: 1.43 (minimum version 1.12)
Go version: go1.20.7
Git commit: 1a79695
Built: Mon Sep 4 12:32:17 2023
OS/Arch: linux/amd64
Experimental: false
containerd:
Version: v1.7.3
GitCommit: 7880925980b188f4c97b462f709d0db8e8962aff
runc:
Version: 1.1.9
GitCommit: v1.1.9-0-gccaecfc
docker-init:
Version: 0.19.0
GitCommit: de40ad0
