【0730】docker 入門（上）
25.1 docker簡介php
官網 www.docker.comjava
github https://github.com/docker/docker.github.iomysql
開源的容器引擎，可讓開發者打包應用以及依賴的庫，而後發佈到任何流行的linux發行版上，移植很方便linux
由 go 語言編寫，基於 apache2.0 協議發佈nginx
基於 linux kernel，要想在 win 下運行須要藉助一個 vm（虛擬機）來實現git
自 2013 年開始，近些年發展迅猛github
docker 從1.13x開始，版本分爲社區版 ce 和企業版 ee，而且基於年月的時間線形式，當前最新穩定版爲 17.09 參考http://blog.csdn.net/chenhaifeng2016/article/details/6806241sql
Docker和傳統的虛擬化比較：docker
Docker的優點：apache
啓動很是快，秒級實現
資源利用率高，一臺高配置服務器能夠跑上千個docker容器
更快的交付和部署，一次建立和配置後，能夠在任意地方運行
內核級別的虛擬化，不須要額外的hypevisor支持，會有更高的性能和效率
易遷移，平臺依賴性不強
Docker核心概念：
鏡像，是一個只讀的模板，相似於安裝系統用到的那個iso文件，咱們經過鏡像來完成各類應用的部署。
容器，鏡像相似於操做系統，而容器相似於虛擬機自己。它能夠被啓動、開始、中止、刪除等操做，每一個容器都是相互隔離的。
倉庫，存放鏡像的一個場所，倉庫分爲公開倉庫和私有倉庫。 最大的公開倉庫是Docker hub（hub.docker.com），國內公開倉庫（dockerpool.com）
25.2 安裝docker
一、下載 yum 源，並安裝
[root@arslinux-01 ~]# curl https://download.docker.com/linux/centos/docker-ce.repo -o /etc/yum.repos.d/docker.repo [root@arslinux-01 ~]# yum install -y docker-ce
速度比較慢，也能夠直接下載rpm包
https://download.docker.com/linux/centos/7/x86_64/stable/Packages/
上傳到 linux 下並 yum 安裝，能夠自動解決依賴 yum install -y docker-ce-xxxx.rpm
二、啓動 docker
[root@arslinux-01 ~]# systemctl start docker
25.3 鏡像管理
下載 centos 鏡像
[root@arslinux-01 ~]# docker pull centos
速度比較慢，可使用 docker 加速器
配置 docker 加速器
[root@arslinux-01 ~]# vim /etc/docker/daemon.json
{
"registry-mirrors": ["https://dhq9bx4f.mirror.aliyuncs.com"]
}
說明：這個url爲加速器地址，須要去ali雲申請
配置完加速器，重啓 docker，再次 docker pull centos 會快不少
docker image 查看本地鏡像
docker search xxx 搜索鏡像，其中 xxx 爲關鍵詞
docker tag 鏡像名 標籤 給鏡像打標籤（就是更改鏡像名稱）
[root@arslinux-01 ~]# docker search centos NAME DESCRIPTION STARS OFFICIAL AUTOMATED centos The official build of CentOS. 5493 [OK] ansible/centos7-ansible Ansible on Centos7 122 [OK] jdeathe/centos-ssh CentOS-6 6.10 x86_64 / CentOS-7 7.6.1810 x86… 111 [OK] consol/centos-xfce-vnc Centos container with "headless" VNC session… 96 [OK] centos/mysql-57-centos7 MySQL 5.7 SQL database server 59 imagine10255/centos6-lnmp-php56 centos6-lnmp-php56 57 [OK] tutum/centos Simple CentOS docker image with SSH access 44 centos/postgresql-96-centos7 PostgreSQL is an advanced Object-Relational … 39 kinogmt/centos-ssh CentOS with SSH 28 [OK] pivotaldata/centos-gpdb-dev CentOS image for GPDB development. Tag names… 10 guyton/centos6 From official centos6 container with full up… 9 [OK] drecom/centos-ruby centos ruby 6 [OK] pivotaldata/centos Base centos, freshened up a little with a Do… 3 mamohr/centos-java Oracle Java 8 Docker image based on Centos 7 3 [OK] darksheer/centos Base Centos Image -- Updated hourly 3 [OK] pivotaldata/centos-mingw Using the mingw toolchain to cross-compile t… 2 pivotaldata/centos-gcc-toolchain CentOS with a toolchain, but unaffiliated wi… 2 miko2u/centos6 CentOS6 日本語環境 2 [OK] ovirtguestagent/centos7-atomic The oVirt Guest Agent for Centos 7 Atomic Ho… 2 indigo/centos-maven Vanilla CentOS 7 with Oracle Java Developmen… 1 [OK] blacklabelops/centos CentOS Base Image! Built and Updates Daily! 1 [OK] mcnaughton/centos-base centos base image 1 [OK] pivotaldata/centos7-dev CentosOS 7 image for GPDB development 0 smartentry/centos centos with smartentry 0 [OK] pivotaldata/centos6.8-dev CentosOS 6.8 image for GPDB development 0
[root@arslinux-01 ~]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE ubuntu latest 3556258649b2 2 weeks ago 64.2MB arslinux latest 9f38484d220f 4 months ago 202MB centos latest 9f38484d220f 4 months ago 202MB
若是想更改上方 TAG 處信息，能夠用 : 將 REPOSITORY : TAG 分開
[root@arslinux-01 ~]# docker tag centos test111:190808 [root@arslinux-01 ~]# docker tag centos test111:1234 [root@arslinux-01 ~]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE ubuntu latest 3556258649b2 2 weeks ago 64.2MB arslinux latest 9f38484d220f 4 months ago 202MB centos latest 9f38484d220f 4 months ago 202MB test111 1234 9f38484d220f 4 months ago 202MB test111 190808 9f38484d220f 4 months ago 202MB
這裏的 TAG 和命令中的 tag 不是一個概念
docker run -itd 鏡像名 把鏡像啓動爲容器
docker ps 查看運行的容器
docker ps -a 查看全部容器（包括未運行的）
[root@arslinux-01 ~]# docker run -itd centos 9d06f43b687172d3cd5ab13529645482f2a9d6fad286c0dd82a5783863db2617 [root@arslinux-01 ~]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 9d06f43b6871 centos "/bin/bash" 5 seconds ago Up 3 seconds zealous_mestorf [root@arslinux-01 ~]# docker ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 9d06f43b6871 centos "/bin/bash" 3 minutes ago Up 3 minutes zealous_mestorf
說明：-i 表示讓容器的標準輸入打開，-t 表示分配一個僞終端，-d 表示後臺啓動，要把 -i -t -d 放到鏡像名字前面
docker rmi 鏡像名 刪除指定鏡像
[root@arslinux-01 ~]# docker rmi test111 Error: No such image: test111 [root@arslinux-01 ~]# docker rmi test111:1234 Untagged: test111:1234 [root@arslinux-01 ~]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE ubuntu latest 3556258649b2 2 weeks ago 64.2MB arslinux latest 9f38484d220f 4 months ago 202MB centos latest 9f38484d220f 4 months ago 202MB test111 190808 9f38484d220f 4 months ago 202MB
其中後面的參數能夠是 tag，若是是 tag 時，其實是刪除該 tag。當後面的參數爲鏡像 ID 時，則會完全刪除整個鏡像，全部標籤也會一同刪除
不加 TAG 刪除鏡像，實際 TAG 就是 latest ，docker rmi test111 就是 docker rmi test111:latest
25.4 經過容器建立鏡像
一、啓動容器
[root@arslinux-01 ~]# docker run -itd centos 77fbe7aeaee649478aae095af386e6b7796e96e865bb95f7d673875fdf6767ec [root@arslinux-01 ~]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 77fbe7aeaee6 centos "/bin/bash" 15 seconds ago Up 12 seconds blissful_yonath
二、進入容器 docker exec -it xxxxx bash
[root@arslinux-01 ~]# docker exec -it 77fbe7 bash [root@77fbe7aeaee6 /]# df -h Filesystem Size Used Avail Use% Mounted on overlay 28G 6.1G 22G 22% / tmpfs 64M 0 64M 0% /dev tmpfs 487M 0 487M 0% /sys/fs/cgroup shm 64M 0 64M 0% /dev/shm /dev/sda3 28G 6.1G 22G 22% /etc/hosts tmpfs 487M 0 487M 0% /proc/asound tmpfs 487M 0 487M 0% /proc/acpi tmpfs 487M 0 487M 0% /proc/scsi tmpfs 487M 0 487M 0% /sys/firmware [root@77fbe7aeaee6 /]# free total used free shared buff/cache available Mem: 995896 654636 73140 2620 268120 133448 Swap: 1999868 169472 1830396
說明：其中xxxxx爲容器id，這個id能夠用docker ps查看，最後面的bash爲進入容器後咱們要執行的命令，這樣就能夠打開一個終端
進入到該容器中，咱們作一些變動，好比安裝一些東西，而後針對這個容器進行建立新的鏡像
三、容器中的操做和機器中操做沒有區別
[root@77fbe7aeaee6 /]# yum install -y net-tools [root@77fbe7aeaee6 /]# ifconfig eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 172.17.0.2 netmask 255.255.0.0 broadcast 172.17.255.255 ether 02:42:ac:11:00:02 txqueuelen 0 (Ethernet) RX packets 3381 bytes 14925255 (14.2 MiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 2448 bytes 135606 (132.4 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 loop txqueuelen 1000 (Local Loopback) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 0 bytes 0 (0.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 [root@77fbe7aeaee6 /]# exit [root@arslinux-01 ~]# ifconfig |grep docker docker0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 172.17.0.1 netmask 255.255.0.0 broadcast 172.17.255.255 inet6 fe80::42:c8ff:fe99:eec1 prefixlen 64 scopeid 0x20<link> ether 02:42:c8:99:ee:c1 txqueuelen 0 (Ethernet) RX packets 2448 bytes 101334 (98.9 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 3373 bytes 14924599 (14.2 MiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
容器中的網卡在宿主機上也出現了
每開啓一個容器，都會有一個虛擬網卡讓容器和虛擬機通訊
[root@arslinux-01 ~]# ifconfig |grep veth veth47c82bd: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet6 fe80::5014:d2ff:fe64:e486 prefixlen 64 scopeid 0x20<link> ether 52:14:d2:64:e4:86 txqueuelen 0 (Ethernet) RX packets 2448 bytes 135606 (132.4 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 3381 bytes 14925255 (14.2 MiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
四、將容器作成鏡像docker commit -m "具體操做" -a "操做人" 容器id 新鏡像名稱
[root@arslinux-01 ~]# docker commit -m "install net-tools" -a "arslinux" 77fbe7aeaee6 centos_with_net sha256:9c213599fd8f289da3333e0a0ddb55d8f208c020e3ace833461d2f0706cdd4d6 [root@arslinux-01 ~]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE centos_with_net latest 9c213599fd8f 4 seconds ago 314MB centos latest 8f92b9698cb1 3 minutes ago 314MB ubuntu latest 3556258649b2 2 weeks ago 64.2MB arslinux latest 9f38484d220f 4 months ago 202MB test111 190808 9f38484d220f 4 months ago 202MB
說明：-m 加一些改動信息，-a 指定做者相關信息 77fbe7aeaee6 這一串爲容器id，再後面爲新鏡像的名字
五、打開新鏡像的容器並進入
[root@arslinux-01 ~]# docker run -itd centos_with_net b1778f203633755d801b022e6db3c07d781f010acf4681cfe5f86b7639b18d6f [root@arslinux-01 ~]# docker exec -it b1778f bash [root@b1778f203633 /]# ifconfig eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 172.17.0.3 netmask 255.255.0.0 broadcast 172.17.255.255 ether 02:42:ac:11:00:03 txqueuelen 0 (Ethernet) RX packets 8 bytes 656 (656.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 0 bytes 0 (0.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 loop txqueuelen 1000 (Local Loopback) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 0 bytes 0 (0.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 [root@b1778f203633 /]# ping www.baidu.com PING www.a.shifen.com (180.97.33.107) 56(84) bytes of data. 64 bytes from 180.97.33.107 (180.97.33.107): icmp_seq=5 ttl=127 time=6.15 ms 64 bytes from 180.97.33.107 (180.97.33.107): icmp_seq=6 ttl=127 time=6.53 ms ^C --- www.a.shifen.com ping statistics --- 6 packets transmitted, 6 received, 0% packet loss, time 14037ms rtt min/avg/max/mdev = 5.900/6.595/7.355/0.532 ms
25.5 經過模板建立鏡像
一、下載模板 http://download.openvz.org/template/precreated/
本地下完後上傳到虛擬機中
二、cat tar包 | docker import - 鏡像名（自定義） 導入鏡像
[root@arslinux-01 ~]# cat centos-6-x86-minimal.tar.gz |docker import - centos6 sha256:d0fc4ef11ea3c1cd7039fb595bdb51023d1f01af68d7c58c45b201000e12306e [root@arslinux-01 ~]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE centos6 latest d0fc4ef11ea3 9 seconds ago 512MB centos_with_net latest 9c213599fd8f 53 minutes ago 314MB centos latest 8f92b9698cb1 56 minutes ago 314MB ubuntu latest 3556258649b2 2 weeks ago 64.2MB arslinux latest 9f38484d220f 4 months ago 202MB test111 190808 9f38484d220f 4 months ago 202MB
三、啓動容器，進入
[root@arslinux-01 ~]# docker run -itd centos6 ced4739b62045d77aa6983589a1e43edeacad2b8ec979b77a47b901131cd637 [root@arslinux-01 ~]# docker exec -it ced4739b62 bash [root@ced4739b6204 /]# cat /etc/issue CentOS release 6.8 (Final) Kernel \r on an \m [root@ced4739b6204 /]# uname -a Linux ced4739b6204 3.10.0-957.el7.x86_64 #1 SMP Thu Nov 8 23:39:32 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
docker 用的是虛擬機 linux 的內核，哪怕是 centos6 的docker ，用的依然是虛擬機 centos7 的內核
四、docker save -o 保存的文件名 鏡像名 導出鏡像
[root@arslinux-01 ~]# docker save -o centos7_with_nettool.tar centos_with_net [root@arslinux-01 ~]# du -sh centos7_with_nettool.tar 307Mcento7_with_nettool.tar
五、先刪除鏡像
[root@arslinux-01 ~]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES ced4739b6204 centos6 "bash" 11 minutes ago Up 11 minutes suspicious_perlman b1778f203633 centos_with_net "/bin/bash" About an hour ago Up About an hour dazzling_bell 77fbe7aeaee6 9f38484d220f "/bin/bash" 2 hours ago Up 2 hours blissful_yonath [root@arslinux-01 ~]# docker rm -f b1778f203633 b1778f203633 [root@arslinux-01 ~]# docker rmi 9c213599fd8f Untagged: centos_with_net:latest Deleted: sha256:9c213599fd8f289da3333e0a0ddb55d8f208c020e3ace833461d2f0706cdd4d6 [root@arslinux-01 ~]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE centos6 latest d0fc4ef11ea3 12 minutes ago 512MB centos latest 8f92b9698cb1 About an hour ago 314MB ubuntu latest 3556258649b2 2 weeks ago 64.2MB arslinux latest 9f38484d220f 4 months ago 202MB test111 190808 9f38484d220f 4 months ago 202MB
六、再用 docker load 載入
docker load imput 鏡像包
docker load < 鏡像包
以上兩種命令皆可
[root@arslinux-01 ~]# docker load < centos7_with_nettool.tar Loaded image: centos_with_net:latest
[root@arslinux-01 ~]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE centos6 latest d0fc4ef11ea3 16 minutes ago 512MB centos_with_net latest 9c213599fd8f About an hour ago 314MB centos latest 8f92b9698cb1 About an hour ago 314MB ubuntu latest 3556258649b2 2 weeks ago 64.2MB arslinux latest 9f38484d220f 4 months ago 202MB test111 190808 9f38484d220f 4 months ago 202MB
25.6 容器管理
docker create -it 鏡像名 bash 建立容器
docker start 容器id 啓動容器
[root@arslinux-01 ~]# docker create -it centos6 bash 03cea99df28677d8b4ade4e1d729d14b3c0d4c8d183cc9e76f239456ed878534 [root@arslinux-01 ~]# docker ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 03cea99df286 centos6 "bash" 8 seconds ago Created hopeful_darwin ced4739b6204 centos6 "bash" 37 minutes ago Up 37 minutes suspicious_perlman 77fbe7aeaee6 9f38484d220f "/bin/bash" 2 hours ago Up 2 hours blissful_yonath 9d06f43b6871 9f38484d220f "/bin/bash" 2 days ago Exited (137) 2 days ago zealous_mestorf
[root@arslinux-01 ~]# docker start 03cea99df286 03cea99df286 [root@arslinux-01 ~]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 03cea99df286 centos6 "bash" 29 seconds ago Up 5 seconds hopeful_darwin ced4739b6204 centos6 "bash" 37 minutes ago Up 37 minutes suspicious_perlman 77fbe7aeaee6 9f38484d220f "/bin/bash" 2 hours ago Up 2 hours blissful_yonath
啓動容器後，可使用 docker ps 查看到，有 start 就有 stop，和 restart
docker create 再 docker start 至關於 docker run
docker run -it 鏡像名 bash 啓動並進入容器
[root@arslinux-01 ~]# docker run -it centos bash
docker run -d 可讓容器在後臺運行
例如：docker run -d centos bash -c "while :; do echo "123"; sleep 2; done"
docker run --name 名稱 -itd 鏡像 bash 給容器自定義名字
[root@arslinux-01 ~]# docker run --name arsenal_pepe -itd centos6 bash 6b975789ec240520e4316699cfb83a9752a84da8890f62b18085ce759d252152 [root@arslinux-01 ~]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 6b975789ec24 centos6 "bash" 22 seconds ago Up 21 seconds arsenal_pepe 03cea99df286 centos6 "bash" 27 minutes ago Up 27 minutes hopeful_darwin ced4739b6204 centos6 "bash" About an hour ago Up About an hour suspicious_perlman 77fbe7aeaee6 centos "/bin/bash" 2 hours ago Up 2 hours blissful_yonath [root@arslinux-01 ~]# docker exec -it arsenal_pepe bash [root@6b975789ec24 /]#
docker run --rm -it 容器名 bash -c "命令" 命令執行完容器就會退出
[root@arslinux-01 ~]# docker run --rm -it centos bash -c "sleep 15"
--rm 可讓容器退出後直接刪除，在這裏命令執行完容器就會退出
docker logs 容器id 查看容器運行歷史信息
[root@arslinux-01 ~]# docker run -itd centos bash -c "echo 123" 066f53f67367fe0da907c26d7abd2d0c95acff40eaf2a0203fba556787f4ab83 [root@arslinux-01 ~]# docker logs 066f53f67367 123
docker attach 容器id 進入後臺運行的容器
docker exec -it 容器id bash 臨時打開一個虛擬終端，exit 後，容器依然運行着
attach命令不算好用，好比咱們想要退出終端，就得exit了，這樣容器也就退出了，用 exec 比較
docker rm 容器id 刪除容器
[root@arslinux-01 ~]# docker ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 066f53f67367 centos "bash -c 'echo 123'" 5 minutes ago Exited (0) 5 minutes ago sharp_liskov 6b975789ec24 centos6 "bash" 18 minutes ago Up 18 minutes arsenal_pepe 944bc4839130 centos "bash" 30 minutes ago Exited (127) 30 minutes ago nervous_sammet 37366b75bd90 centos "/bin/bash" 30 minutes ago Exited (127) 30 minutes ago inspiring_saha a80eed529a34 centos "bash" 31 minutes ago Exited (0) 30 minutes ago hungry_elgamal 32da41e087c2 centos "bash" 32 minutes ago Exited (0) 32 minutes ago infallible_tereshkova 985de0f4f889 centos "bash" 33 minutes ago Exited (0) 33 minutes ago nifty_nightingale d55e81eae6aa centos "/bin/bash" 35 minutes ago Exited (0) 33 minutes ago condescending_varahamihira 02bccad25efb centos "/bin/bash" 38 minutes ago Exited (0) 37 minutes ago heuristic_wu 03cea99df286 centos6 "bash" 46 minutes ago Up 45 minutes hopeful_darwin ced4739b6204 centos6 "bash" About an hour ago Up About an hour suspicious_perlman 77fbe7aeaee6 centos "/bin/bash" 3 hours ago Up 3 hours blissful_yonath 9d06f43b6871 centos "/bin/bash" 2 days ago Exited (137) 2 days ago zealous_mestorf
[root@arslinux-01 ~]# docker rm 066f53f67367 066f53f67367 [root@arslinux-01 ~]# docker rm 944bc4839130 944bc4839130 [root@arslinux-01 ~]# docker rm 37366b75bd90 37366b75bd90 [root@arslinux-01 ~]# docker rm a80eed529a34 a80eed529a34 [root@arslinux-01 ~]# docker rm 32da41e087c2 32da41e087c2 [root@arslinux-01 ~]# docker rm 985de0f4f889 985de0f4f889
[root@arslinux-01 ~]# docker ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 6b975789ec24 centos6 "bash" 19 minutes ago Up 19 minutes arsenal_pepe d55e81eae6aa centos "/bin/bash" 36 minutes ago Exited (0) 34 minutes ago condescending_varahamihira 02bccad25efb centos "/bin/bash" 40 minutes ago Exited (0) 38 minutes ago heuristic_wu 03cea99df286 centos6 "bash" 47 minutes ago Up 46 minutes hopeful_darwin ced4739b6204 centos6 "bash" About an hour ago Up About an hour suspicious_perlman 77fbe7aeaee6 centos "/bin/bash" 3 hours ago Up 3 hours blissful_yonath 9d06f43b6871 centos "/bin/bash" 2 days ago Exited (137) 2 days ago zealous_mestor
——對於啓動狀態的容器，刪除須要加 -f 強行刪除
[root@arslinux-01 ~]# docker rm 03cea99df286 Error response from daemon: You cannot remove a running container 03cea99df28677d8b4ade4e1d729d14b3c0d4c8d183cc9e76f239456ed878534. Stop the container before attempting removal or force remove [root@arslinux-01 ~]# docker rm -f 03cea99df286 03cea99df286 [root@arslinux-01 ~]# docker ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 6b975789ec24 centos6 "bash" 21 minutes ago Up 21 minutes arsenal_pepe d55e81eae6aa centos "/bin/bash" 38 minutes ago Exited (0) 36 minutes ago condescending_varahamihira 02bccad25efb centos "/bin/bash" 41 minutes ago Exited (0) 40 minutes ago heuristic_wu ced4739b6204 centos6 "bash" About an hour ago Up About an hour suspicious_perlman 77fbe7aeaee6 centos "/bin/bash" 3 hours ago Up 3 hours blissful_yonath 9d06f43b6871 centos "/bin/bash" 2 days ago Exited (137) 2 days ago zealous_mestor
docker export 容器id > 文件.tar 導出容器
cat 文件.tar |docker import - 鏡像名 生成鏡像
[root@arslinux-01 ~]# docker export 9d06f43b6871 > centos.tar
[root@arslinux-01 ~]# cat centos.tar |docker import - centos111
sha256:48f71221434353e6f02227794e1a95fcc8ae5f0dc9608142febc957dd124dba0
25.7 倉庫管理
docker start 啓動未啓動的容器（重啓docker服務後，容器會退出）
[root@arslinux-01 ~]# docker ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 6b975789ec24 centos6 "bash" 27 hours ago Exited (137) 22 hours ago arsenal_pepe d55e81eae6aa centos "/bin/bash" 28 hours ago Exited (0) 28 hours ago condescending_varahamihira 02bccad25efb centos "/bin/bash" 28 hours ago Exited (0) 28 hours ago heuristic_wu ced4739b6204 centos6 "bash" 29 hours ago Exited (137) 22 hours ago suspicious_perlman 77fbe7aeaee6 centos "/bin/bash" 30 hours ago Exited (137) 22 hours ago blissful_yonath 9d06f43b6871 centos "/bin/bash" 3 days ago Exited (137) 3 days ago zealous_mestorf [root@arslinux-01 ~]# docker start 6b975789ec24 6b975789ec24 [root@arslinux-01 ~]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 6b975789ec24 centos6 "bash" 27 hours ago Up 1 second arsenal_pepe
一、利用 registry 建立私有倉庫
1）下載 registry 鏡像
[root@arslinux-01 ~]# docker pull registry
2）啓動 registry 容器
docker run -d -p 宿主機端口號:容器端口號 registry 啓動 registry 容器
[root@arslinux-01 ~]# docker run -d -p 5000:5000 registry 3f51ff27501d3f81a29996cc04b8a16ae9b85a9c5b03f4876d13f16fc53e2315 [root@arslinux-01 ~]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 3f51ff27501d registry "/entrypoint.sh /etc…" 9 seconds ago Up 7 seconds 0.0.0.0:5000->5000/tcp quizzical_chandrasekhar 6b975789ec24 centos6 "bash" 28 hours ago Up 14 minutes arsenal_pepe
說明：以registry鏡像啓動容器，-p會把容器的端口映射到宿主機上，:左邊爲宿主機監聽端口，:右邊爲容器監聽端口
3）查看 registry 倉庫內容
curl 127.0.0.1:5000/v2/_catalog 查看 registry 倉庫內容
[root@arslinux-01 ~]# curl 127.0.0.1:5000/v2/_catalog
{"repositories":[]}
二、上傳鏡像到私有倉庫
1）標記鏡像
docker tag 要標記的鏡像 ip:端口/鏡像 標記tag，必須帶私有倉庫 ip:端口
[root@arslinux-01 ~]# docker tag centos6 192.168.194.130:5000/centos6 [root@arslinux-01 ~]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE 192.168.194.130:5000/centos6 latest d0fc4ef11ea3 29 hours ago 512MB centos6 latest d0fc4ef11ea3 29 hours ago 512MB centos_with_net latest 9c213599fd8f 30 hours ago 314MB ubuntu latest 3556258649b2 2 weeks ago 64.2MB arslinux latest 9f38484d220f 5 months ago 202MB centos latest 9f38484d220f 5 months ago 202MB test111 190808 9f38484d220f 5 months ago 202MB registry latest f32a97de94e1 5 months ago 25.8MB
2）上傳鏡像
docker push ip:端口/鏡像 上傳鏡像到 registry
[root@arslinux-01 ~]# docker push 192.168.194.130:5000/centos6 The push refers to repository [192.168.194.130:5000/centos6] Get https://192.168.194.130:5000/v2/: http: server gave HTTP response to HTTPS client
3）指定私有倉庫地址
以上報錯須要修改配置文件 /etc/docker/daemon.json，在 { } 中加一行內容（若是本來有內容需用逗號 , 隔開）
[root@arslinux-01 ~]# vim /etc/docker/daemon.json
{ "insecure-registries":["192.168.194.130:5000"] }
4）重啓 docker、鏡像
[root@arslinux-01 ~]# systemctl restart docker [root@arslinux-01 ~]# docker ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 3f51ff27501d registry "/entrypoint.sh /etc…" 31 minutes ago Exited (2) 2 minutes ago quizzical_chandrasekhar 6b975789ec24 centos6 "bash" 28 hours ago Exited (137) 4 minutes ago arsenal_pepe d55e81eae6aa centos "/bin/bash" 28 hours ago Exited (0) 28 hours ago condescending_varahamihira 02bccad25efb centos "/bin/bash" 29 hours ago Exited (0) 29 hours ago heuristic_wu ced4739b6204 centos6 "bash" 29 hours ago Exited (137) 23 hours ago suspicious_perlman 77fbe7aeaee6 centos "/bin/bash" 31 hours ago Exited (137) 23 hours ago blissful_yonath 9d06f43b6871 centos "/bin/bash" 4 days ago Exited (137) 4 days ago zealous_mestorf [root@arslinux-01 ~]# docker start 3f51ff27501d 3f51ff27501d [root@arslinux-01 ~]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 3f51ff27501d registry "/entrypoint.sh /etc…" 31 minutes ago Up 3 seconds 0.0.0.0:5000->5000/tcp quizzical_chandrasekhar
5）從新上傳
[root@arslinux-01 ~]# docker push 192.168.194.130:5000/centos6 The push refers to repository [192.168.194.130:5000/centos6] 0a2f11f7b1ef: Pushed latest: digest: sha256:5c0d4992624653abc8764aec2409903be43105246fffd961fa69c3adbc78f0be size: 529
6）查看倉庫內容 curl
[root@arslinux-01 ~]# curl 192.168.194.130:5000/v2/_catalog
{"repositories":["centos6"]}
7）再用以上方法上傳 ubuntu
[root@arslinux-01 ~]# docker tag ubuntu 192.168.194.130:5000/ubuntu
[root@arslinux-01 ~]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
192.168.194.130:5000/centos6 latest d0fc4ef11ea3 29 hours ago 512MB
centos6 latest d0fc4ef11ea3 29 hours ago 512MB
centos_with_net latest 9c213599fd8f 30 hours ago 314MB
192.168.194.130:5000/ubuntu latest 3556258649b2 2 weeks ago 64.2MB
ubuntu latest 3556258649b2 2 weeks ago 64.2MB
centos latest 9f38484d220f 5 months ago 202MB
test111 190808 9f38484d220f 5 months ago 202MB
arslinux latest 9f38484d220f 5 months ago 202MB
registry latest f32a97de94e1 5 months ago 25.8MB
[root@arslinux-01 ~]# docker push 192.168.194.130:5000/ubuntu
The push refers to repository [192.168.194.130:5000/ubuntu]
b079b3fa8d1b: Pushed
a31dbd3063d7: Pushed
c56e09e1bd18: Pushed
543791078bdb: Pushed
latest: digest: sha256:d91842ef309155b85a9e5c59566719308fab816b40d376809c39cf1cf4de3c6a size: 1152
[root@arslinux-01 ~]# curl 192.168.194.130:5000/v2/_catalog
{"repositories":["centos6","ubuntu"]}
25.8 數據管理
其餘機器如何從私有倉庫下載？
一、使用的機器安裝 docker，啓動docker
[root@arslinux-02 ~]# yum install -y docker-ce-19.03.1-3.el7.x86_64.rpm [root@arslinux-02 ~]# systemctl start docker
二、編輯 /etc/docker/daemon.json，添加私有倉庫地址，重啓 docker
[root@arslinux-02 ~]# vim /etc/docker/daemon.json
{ "insecure-registries":["192.168.194.130:5000"] }
[root@arslinux-02 ~]# systemctl restart docker
三、從倉庫下載鏡像
[root@arslinux-02 ~]# docker pull 192.168.194.130:5000/ubuntu Using default tag: latest latest: Pulling from ubuntu 7413c47ba209: Pull complete 0fe7e7cbb2e8: Pull complete 1d425c982345: Pull complete 344da5c95cec: Pull complete Digest: sha256:d91842ef309155b85a9e5c59566719308fab816b40d376809c39cf1cf4de3c6a Status: Downloaded newer image for 192.168.194.130:5000/ubuntu:latest 192.168.194.130:5000/ubuntu:latest
一樣也能夠從官方下載鏡像
——將宿主機目錄掛載到容器中，減少數據丟失的風險
一、掛載本地的目錄到容器中
docker run -itd -v 宿主機目錄:容器目錄 使用的鏡像 bash 掛載
[root@arslinux-01 ~]# ls /data/ ftp mysql wwwroot [root@arslinux-01 ~]# docker run -itd -v /data/:/data centos_with_net bash b8bbf33335c6491bee278976f64383ca627b157d1f80f6dc132886fe4cc9513a [root@arslinux-01 ~]# docker exec -it b8bbf33 bash [root@b8bbf33335c6 /]# ls /data/ ftp mysql wwwroot
說明：-v 用來指定掛載目錄；:前面的/data/爲宿主機本地目錄，:後面的/data/爲容器裏的目錄，會在容器中自動建立，兩個目錄能夠不同
——容器中修改內容，看宿主機變化
[root@b8bbf33335c6 /]# mkdir /data/12334 [root@b8bbf33335c6 /]# exit exit [root@arslinux-01 ~]# ls /data/ 12334 ftp mysql wwwroot
相似於映射
二、掛載數據卷
docker run -itd --volumes-from 容器名 鏡像名 bash 掛載數據卷
[root@arslinux-01 ~]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES b8bbf33335c6 centos_with_net "bash" 11 minutes ago Up 11 minutes keen_brattain 3f51ff27501d registry "/entrypoint.sh /etc…" 3 days ago Up 33 minutes 0.0.0.0:5000->5000/tcp quizzical_chandrasekhar [root@arslinux-01 ~]# docker run -itd --volumes-from keen_brattain arslinux bash 6ba3b2b7b37ea12aeeca0e885ecc4796a3bfc50016f50cea73f4bbc455c742aa [root@arslinux-01 ~]# docker exec -it 6ba3b2b7b bash [root@6ba3b2b7b37e /]# ls /data/ 12334 ftp mysql wwwroot
說明：其實咱們掛載目錄的時候，能夠指定容器 name，若是不指定就隨機定義了。好比上面咱們沒有指定，它就生成了一個名字爲 keen_brattain，這個名字可使用命令 docker ps 看最右側一列
這樣，咱們使用 arslinux 鏡像建立了新的容器，而且使用了 relaxed_franklin 容器的數據卷
三、定義數據卷容器
有時候，咱們須要多個容器之間相互共享數據，相似於 linux 裏面的 NFS，因此就能夠搭建一個專門的數據卷容器，而後其餘容器直接掛載該數據卷
首先，創建數據卷容器
[root@arslinux-01 ~]# docker run -itd -v /data/ --name testvol centos bash 8ac3ab5f3cabd5232ff1da88f7d188434c29e6597da2399ef14f585a570d22fc
而後，讓其餘容器掛載該數據卷
[root@arslinux-01 ~]# docker run -itd --volumes-from testvol arslinux bash f222617a931c4857d14995593359c827a377bfc3200f89a01fbfdc4f01b01c14
25.9 數據卷備份恢復
——備份
一、宿主機建立備份目錄
[root@arslinux-01 ~]# mkdir /data/backup
二、備份
[root@arslinux-01 ~]# docker run --volumes-from testvol -v /data/backup/:/backup centos tar cvf /backup/data.tar /data/ tar: Removing leading `/' from member names /data/ [root@arslinux-01 ~]# ls /data/backup/ data.tar
說明：首先咱們須要使用 testvol 數據卷新開一個容器，同時咱們還須要把本地的 /data/backup/ 目錄掛載到該容器的 /backup下，這樣在容器中 /backup 目錄裏面新建的文件，咱們就能夠直接在 /data/backup/ 目錄中看到了。 而後再把 /data/ 目錄下面的文件打包到成 data.tar 文件放到 /backup 目錄下面
——恢復
思路： 先新建一個數據卷容器，再建一個新的容器並掛載該數據卷容器，而後再把 tar 包解包
一、新建數據卷容器
[root@arslinux-01 ~]# docker run -itd -v /data/ --name testvol2 centos bash db37af0c5168b405a17594857e80ad0ae8a1bdd780355fd5194269475b24eab0
二、掛載數據卷新建容器，並解包
[root@arslinux-01 ~]# docker run --volumes-from testvol2 -v /data/backup/:/backup centos tar xvf /backup/data.tar data/
25.10 docker 網絡模式
host 模式，使用 docker run 時使用 --net=host 指定
docker 使用的網絡實際上和宿主機同樣，在容器內看到的網卡ip是宿主機 ip
container 模式，使用 --net=container:container_id/container_name
多個容器使用共同的網絡，看到的ip是同樣的
none 模式，使用 --net=none 指定
這種模式下，不會配置任何網絡
bridge 模式，使用 --net=bridge 指定默認模式，不用指定默認就是這種網絡模式。
這種模式會爲每一個容器分配一個獨立的 Network Namespace。相似於 vmware 的 nat 網絡模式。同一個宿主機上的全部容器會在同一個網段下，相互之間是能夠通訊的
[root@arslinux-01 ~]# docker start keen_brattain keen_brattain [root@arslinux-01 ~]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES db37af0c5168 centos "bash" 29 minutes ago Up 29 minutes testvol2 ff72d738a130 arslinux "bash" 31 minutes ago Up 31 minutes musing_brown 504f568c9f78 centos "bash" 31 minutes ago Up 31 minutes testvol 3c8c66de157f centos "bash" 38 minutes ago Up 38 minutes strange_merkle b8bbf33335c6 centos_with_net "bash" 3 days ago Up 33 seconds keen_brattain [root@arslinux-01 ~]# docker exec -it b8bbf33335c6 bash
[root@b8bbf33335c6 /]# yum install -y epel-release [root@b8bbf33335c6 /]# yum install -y nginx [root@b8bbf33335c6 /]# systemctl start nginx Failed to get D-Bus connection: Operation not permitted [root@b8bbf33335c6 /]# exit exit
[root@arslinux-01 ~]# docker run -itd -p 8088:80 centos_with_nginx bash 8082d76f51020755cb179b8a9aa975a1eb648f36cd33aa837033a8a49bc4c677
25.11 opration not permitted
[root@arslinux-01 ~]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 4b35349a250e centos "/bin/bash" 4 minutes ago Up 4 minutes gracious_moore db37af0c5168 centos "bash" 44 minutes ago Up 44 minutes testvol2 ff72d738a130 arslinux "bash" 47 minutes ago Up 47 minutes musing_brown 504f568c9f78 centos "bash" 47 minutes ago Up 47 minutes testvol 3c8c66de157f centos "bash" 54 minutes ago Up 54 minutes strange_merkle b8bbf33335c6 centos_with_net "bash" 3 days ago Up 16 minutes keen_brattain
[root@arslinux-01 ~]# docker commit -m "install nginx" -a "arslinux" b8bbf33335c6 centos_with_nginx sha256:b25e841545c54449ef945319e1e9b323a4f77b587591a1f30036a0ec6ed2b0bc
[root@arslinux-01 ~]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE centos_with_nginx latest b25e841545c5 8 seconds ago 523MB centos111 latest 48f712214343 6 days ago 202MB centos6 latest d0fc4ef11ea3 7 days ago 512MB 192.168.194.130:5000/centos6 latest d0fc4ef11ea3 7 days ago 512MB centos_with_net latest 9c213599fd8f 7 days ago 314MB 192.168.194.130:5000/ubuntu latest 3556258649b2 3 weeks ago 64.2MB ubuntu latest 3556258649b2 3 weeks ago 64.2MB arslinux latest 9f38484d220f 5 months ago 202MB centos latest 9f38484d220f 5 months ago 202MB test111 190808 9f38484d220f 5 months ago 202MB registry latest f32a97de94e1 5 months ago 25.8MB
[root@arslinux-01 ~]# docker run -itd --privileged -e "container=docker" -p 8088:80 centos_with_nginx /usr/sbin/init f8125fbc05426351395f22f9b143509ff9df04c288c86b0b5086a582dcb7461d
[root@arslinux-01 ~]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES f8125fbc0542 centos_with_nginx "/usr/sbin/init" 5 seconds ago Up 3 seconds 0.0.0.0:8088->80/tcp compassionate_brattain 4b35349a250e centos "/bin/bash" 16 minutes ago Up 16 minutes gracious_moore db37af0c5168 centos "bash" 56 minutes ago Up 56 minutes testvol2 ff72d738a130 arslinux "bash" 58 minutes ago Up 58 minutes musing_brown 504f568c9f78 centos "bash" 59 minutes ago Up 59 minutes testvol 3c8c66de157f centos "bash" About an hour ago Up About an hour strange_merkle b8bbf33335c6 centos_with_net "bash" 3 days ago Up 27 minutes keen_brattain
[root@arslinux-01 ~]# docker exec -it f8125fbc0542 bash [root@f8125fbc0542 /]# systemctl start nginx [root@f8125fbc0542 /]# ps aux|grep nginx root 3412 0.0 0.2 125108 2112 ? Ss 14:17 0:00 nginx: master process /usr/sbin/nginx nginx 3413 0.0 0.3 125496 3140 ? S 14:17 0:00 nginx: worker process root 3415 0.0 0.0 9088 668 pts/1 S+ 14:17 0:00 grep --color=auto nginx [root@f8125fbc0542 /]# netstat -lntp|grep nginx tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN 3412/nginx: master tcp6 0 0 :::80 :::* LISTEN 3412/nginx: master [root@f8125fbc0542 /]# exit
[root@arslinux-01 ~]# curl localhost:8088 [root@arslinux-02 ~]# curl 192.168.194.130:8088
宿主機上訪問 8088 就是容器中的 80 端口，其餘主機想要訪問容器，訪問宿主機的 8088 端口便可
25.12 配置橋接網絡
爲了使本地網絡中的機器和 Docker 容器更方便的通訊，咱們常常會有將 Docker 容器配置到和主機同一網段的需求。這個需求其實很容易實現，咱們只要將 Docker 容器和宿主機的網卡橋接起來，再給 Docker 容器配上 IP 就能夠了
一、以默認網卡參數爲模板，編輯新的網卡參數 br0
[root@arslinux-01 ~]# cd /etc/sysconfig/network-scripts/ [root@arslinux-01 network-scripts]# cp ifcfg-ens33 ifcfg-br0 [root@arslinux-01 network-scripts]# vim !$ vim ifcfg-br0
將 第一行改成 TYPE=Bridge，NAME=br0，DEVICE=br0，其餘參數不變
二、更改默認網卡參數 ens33，重啓網絡
[root@arslinux-01 network-scripts]# vim ifcfg-ens33
將 UUID、IPADDR、NETMASK、GATEWAY、DNS所有註釋掉
並在最後增長一行 BRIDGE=br0
[root@arslinux-01 network-scripts]# systemctl restart network [root@arslinux-01 network-scripts]# ifconfig br0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.194.130 netmask 255.255.255.0 broadcast 192.168.194.255 inet6 fe80::7b5a:1723:e063:9f29 prefixlen 64 scopeid 0x20<link> ether 00:0c:29:24:ea:f2 txqueuelen 1000 (Ethernet) RX packets 33 bytes 16939 (16.5 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 41 bytes 3861 (3.7 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 docker0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500 inet 172.17.0.1 netmask 255.255.0.0 broadcast 172.17.255.255 ether 02:42:2e:f0:d8:fb txqueuelen 0 (Ethernet) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 0 bytes 0 (0.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 ether 00:0c:29:24:ea:f2 txqueuelen 1000 (Ethernet) RX packets 5569 bytes 971820 (949.0 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 4869 bytes 493960 (482.3 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 ens37: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.100.1 netmask 255.255.255.0 broadcast 192.168.100.255 inet6 fe80::f41:9da7:d8e3:10ba prefixlen 64 scopeid 0x20<link> ether 00:0c:29:24:ea:fc txqueuelen 1000 (Ethernet) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 59 bytes 4514 (4.4 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 inet6 ::1 prefixlen 128 scopeid 0x10<host> loop txqueuelen 1000 (Local Loopback) RX packets 61507 bytes 19731949 (18.8 MiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 61507 bytes 19731949 (18.8 MiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
三、安裝 pipwork
[root@arslinux-01 ~]# git clone https://github.com/jpetazzo/pipework [root@arslinux-01 ~]# cp pipework/pipework /usr/local/bin/
四、開啓一個容器
[root@arslinux-01 ~]# docker run -itd --net=none centos_with_nginx bash 43109bea3b870a590178677caf548dd04b0ab6d08201a50f9ff8c45c67b5e8a4 [root@arslinux-01 ~]# docker exec -it 43109b bash [root@43109bea3b87 /]# ifconfig lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 loop txqueuelen 1000 (Local Loopback) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 0 bytes 0 (0.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 [root@43109bea3b87 /]# exit exit
四、爲容器添加新的虛擬網卡
[root@arslinux-01 ~]# pipework br0 43109b 192.168.194.135/24@192.168.194.2 [root@arslinux-01 ~]# docker exec -it 43109b bash [root@43109bea3b87 /]# ifconfig eth1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.194.135 netmask 255.255.255.0 broadcast 192.168.194.255 ether 42:b1:e4:da:4e:c4 txqueuelen 1000 (Ethernet) RX packets 7 bytes 586 (586.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 1 bytes 42 (42.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 loop txqueuelen 1000 (Local Loopback) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 0 bytes 0 (0.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
五、聯網測試
[root@43109bea3b87 /]# ping www.qq.com PING public.sparta.mig.tencent-cloud.net (61.151.166.139) 56(84) bytes of data. 64 bytes from 139.166.151.61.dial.xw.sh.dynamic.163data.com.cn (61.151.166.139): icmp_seq=1 ttl=128 time=12.0 ms 64 bytes from 139.166.151.61.dial.xw.sh.dynamic.163data.com.cn (61.151.166.139): icmp_seq=2 ttl=128 time=12.5 ms 64 bytes from 139.166.151.61.dial.xw.sh.dynamic.163data.com.cn (61.151.166.139): icmp_seq=3 ttl=128 time=12.0 ms ^C --- public.sparta.mig.tencent-cloud.net ping statistics --- 3 packets transmitted, 3 received, 0% packet loss, time 2002ms rtt min/avg/max/mdev = 12.022/12.202/12.501/0.212 ms [root@43109bea3b87 /]# route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 0.0.0.0 192.168.194.2 0.0.0.0 UG 0 0 0 eth1 192.168.194.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1
六、其餘主機上測試鏈接
[root@arslinux-02 ~]# ping 192.168.194.135 PING 192.168.194.135 (192.168.194.135) 56(84) bytes of data. 64 bytes from 192.168.194.135: icmp_seq=1 ttl=64 time=0.581 ms 64 bytes from 192.168.194.135: icmp_seq=2 ttl=64 time=0.318 ms 64 bytes from 192.168.194.135: icmp_seq=3 ttl=64 time=0.669 ms ^C --- 192.168.194.135 ping statistics --- 3 packets transmitted, 3 received, 0% packet loss, time 2000ms rtt min/avg/max/mdev = 0.318/0.522/0.669/0.151 ms
相關文章
- 1. docker 入門上篇
- 2. docker(一)---docker入門
- 3. Docker(一)：Docker入門
- 4. docker & docker-compose 入門
- 5. Docker入門（一）用hello world入門docker
- 6. Docker入門 docker入門——構建鏡像
- 7. 【0730 | Day 4】Python基礎（二）
- 8. Docker三十分鐘快速入門（上）
- 9. kubernetes入門(上)-從新認識docker
- 10. docker入門
- 更多相關文章...
- • Memcached入門教程 - NoSQL教程
- • Neo4j數據庫入門教程 - NoSQL教程
- • YAML 入門教程
- • Java Agent入門實戰（一）-Instrumentation介紹與使用
相關標籤/搜索
每日一句
-
每一个你不满意的现在，都有一个你没有努力的曾经。
歡迎關注本站公眾號,獲取更多信息
