SpringCloud（第 052 篇）CentOS7 安裝 Docker 以及經常使用操做命令講解
SpringCloud（第 052 篇）CentOS7 安裝 Docker 以及經常使用操做命令講解
-php
1、大體介紹
本章節主要帶入你們初步進入 Docker，體驗一下docker的安裝步驟以及操做命令。
2、安裝步驟
2.1 Docker環境部署要求
一、Docker 須要運行在 64-bit 的操做系統上而且要求Linux 內核版本不小於 3.10,OS7知足這個要求； 二、其他低版本的可使用yum update 命令對操做系統內核進行升級! 三、系統內核版本查看命令：uname -r [root@svr01 ~]# uname -r 3.10.0-514.6.2.el7.x86_64
2.2 yum 命令安裝 Docker
[root@svr01 ~]# yum -y install docker 安裝完了會看到以下的打印信息： Installed: docker.x86_64 2:1.12.6-68.gitec8512b.el7.centos Dependency Installed: audit-libs-python.x86_64 0:2.7.6-3.el7 checkpolicy.x86_64 0:2.5-4.el7 container-selinux.noarch 2:2.33-1.git86f33cd.el7 container-storage-setup.noarch 0:0.8.0-3.git1d27ecf.el7 device-mapper-event.x86_64 7:1.02.140-8.el7 device-mapper-event-libs.x86_64 7:1.02.140-8.el7 device-mapper-persistent-data.x86_64 0:0.7.0-0.1.rc6.el7 docker-client.x86_64 2:1.12.6-68.gitec8512b.el7.centos docker-common.x86_64 2:1.12.6-68.gitec8512b.el7.centos libcgroup.x86_64 0:0.41-13.el7 libseccomp.x86_64 0:2.3.1-3.el7 libsemanage-python.x86_64 0:2.5-8.el7 lvm2.x86_64 7:2.02.171-8.el7 lvm2-libs.x86_64 7:2.02.171-8.el7 oci-register-machine.x86_64 1:0-3.13.gitcd1e331.el7 oci-systemd-hook.x86_64 1:0.1.14-1.git1ba44c6.el7 oci-umount.x86_64 2:2.3.0-1.git51e7c50.el7 policycoreutils-python.x86_64 0:2.5-17.1.el7 python-IPy.noarch 0:0.75-6.el7 setools-libs.x86_64 0:3.3.8-1.1.el7 skopeo-containers.x86_64 1:0.1.26-2.dev.git2e8377a.el7.centos yajl.x86_64 0:2.0.4-4.el7 Dependency Updated: audit.x86_64 0:2.7.6-3.el7 audit-libs.x86_64 0:2.7.6-3.el7 device-mapper.x86_64 7:1.02.140-8.el7 device-mapper-libs.x86_64 7:1.02.140-8.el7 libsemanage.x86_64 0:2.5-8.el7 policycoreutils.x86_64 0:2.5-17.1.el7 Complete!
2.3 檢測 Docker 是否安裝成功
[root@svr01 ~]# docker images Cannot connect to the Docker daemon. Is the docker daemon running on this host? 打印該信息說明docker已經安裝了，只是沒有啓動docker而已；
2.4 啓動 docker 後臺服務
[root@svr01 ~]# service docker start Redirecting to /bin/systemctl start docker.service
2.5 查看 docker 的一些相關信息
一、查看鏡像列表 [root@svr01 ~]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE 二、查看運行的鏡像列表 [root@svr01 ~]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
2.6 測試下載 hello-world 鏡像，本地沒有的話則會從docker.io的遠端鏡像庫下載
一、下載 hello-world 鏡像
[root@svr01 ~]# docker run hello-world
Unable to find image 'hello-world:latest' locally
Trying to pull repository docker.io/library/hello-world ...
latest: Pulling from docker.io/library/hello-world
ca4f61b1923c: Pull complete
Digest: sha256:be0cd392e45be79ffeffa6b05338b98ebb16c87b255f48e297ec7f98e123905c
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://cloud.docker.com/
For more examples and ideas, visit:
https://docs.docker.com/engine/userguide/
二、再次查看 docker 現有的資源：
[root@svr01 ~]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
docker.io/hello-world latest f2a91732366c 3 weeks ago 1.848 kB
[root@svr01 ~]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
2.7 搜索鏡像文件
[root@svr01 ~]# docker search centos INDEX NAME DESCRIPTION STARS OFFICIAL AUTOMATED docker.io docker.io/centos The official build of CentOS. 3876 [OK] docker.io docker.io/ansible/centos7-ansible Ansible on Centos7 103 [OK] docker.io docker.io/jdeathe/centos-ssh CentOS-6 6.9 x86_64 / CentOS-7 7.4.1708 x8... 90 [OK] docker.io docker.io/consol/centos-xfce-vnc Centos container with "headless" VNC sessi... 37 [OK] docker.io docker.io/imagine10255/centos6-lnmp-php56 centos6-lnmp-php56 34 [OK] docker.io docker.io/tutum/centos Simple CentOS docker image with SSH access 34 docker.io docker.io/gluster/gluster-centos Official GlusterFS Image [ CentOS-7 + Glu... 21 [OK] docker.io docker.io/kinogmt/centos-ssh CentOS with SSH 17 [OK] docker.io docker.io/centos/python-35-centos7 Platform for building and running Python 3... 14 docker.io docker.io/openshift/base-centos7 A Centos7 derived base image for Source-To... 13 docker.io docker.io/centos/php-56-centos7 Platform for building and running PHP 5.6 ... 10 docker.io docker.io/openshift/jenkins-2-centos7 A Centos7 based Jenkins v2.x image for use... 7 docker.io docker.io/openshift/mysql-55-centos7 DEPRECATED: A Centos7 based MySQL v5.5 ima... 6 docker.io docker.io/darksheer/centos Base Centos Image -- Updated hourly 3 [OK] docker.io docker.io/openshift/ruby-20-centos7 DEPRECATED: A Centos7 based Ruby v2.0 imag... 3 docker.io docker.io/blacklabelops/centos CentOS Base Image! Built and Updates Daily! 1 [OK] docker.io docker.io/miko2u/centos6 CentOS6 鏃ユ湰瑾炵挵澧 1 [OK] docker.io docker.io/openshift/php-55-centos7 DEPRECATED: A Centos7 based PHP v5.5 image... 1 docker.io docker.io/pivotaldata/centos-gpdb-dev CentOS image for GPDB development. Tag nam... 1 docker.io docker.io/pivotaldata/centos-mingw Using the mingw toolchain to cross-compile... 1 docker.io docker.io/jameseckersall/sonarr-centos Sonarr on CentOS 7 0 [OK] docker.io docker.io/openshift/wildfly-101-centos7 A Centos7 based WildFly v10.1 image for us... 0 docker.io docker.io/pivotaldata/centos Base centos, freshened up a little with a ... 0 docker.io docker.io/pivotaldata/centos-gcc-toolchain CentOS with a toolchain, but unaffiliated ... 0 docker.io docker.io/smartentry/centos centos with smartentry 0 [OK]
2.8 拉取鏡像文件
[root@svr01 ~]# docker pull docker.io/centos
2.9 運行剛剛下載的 docker.io/centos 鏡像
[root@svr01 ~]# docker run -i -t docker.io/centos /bin/bash
[root@9f053696bedb /]#
一、運行 docker run 命令後會看到已經進入的鏡像文件內部，所以會看到 [root@9f053696bedb /]# 這樣的命令展現信息。
二、進入鏡像隨便使用看看
[root@9f053696bedb /]# ls
anaconda-post.log bin dev etc home lib lib64 media mnt opt proc root run sbin srv sys tmp usr var
[root@9f053696bedb /]# cd /home/
[root@9f053696bedb home]# mkdir hmilyylimh
[root@9f053696bedb home]# mkdir -p hmilyylimh/docker
[root@9f053696bedb home]# cd hmilyylimh/docker/
[root@9f053696bedb docker]#
三、退出鏡像
[root@9f053696bedb docker]# exit
exit
[root@svr01 ~]#
四、參數說明：
-a stdin: 指定標準輸入輸出內容類型，可選 STDIN/STDOUT/STDERR 三項；
-d: 後臺運行容器，並返回容器ID；
-i: 以交互模式運行容器，一般與 -t 同時使用；
-t: 爲容器從新分配一個僞輸入終端，一般與 -i 同時使用；
--name="nginx-lb": 爲容器指定一個名稱；
--dns 8.8.8.8: 指定容器使用的DNS服務器，默認和宿主一致；
--dns-search example.com: 指定容器DNS搜索域名，默認和宿主一致；
-h "mars": 指定容器的hostname；
-e username="ritchie": 設置環境變量；
--env-file=[]: 從指定文件讀入環境變量；
--cpuset="0-2" or --cpuset="0,1,2": 綁定容器到指定CPU運行；
-m :設置容器使用內存最大值；
--net="bridge": 指定容器的網絡鏈接類型，支持 bridge/host/none/container: 四種類型；
--link=[]: 添加連接到另外一個容器；
--expose=[]: 開放一個端口或一組端口；
2.10 在 docker.io/centos 鏡像中隨便裝個東西，舉例裝個json
[root@svr01 ~]# docker run -i -t docker.io/centos /bin/bash
[root@497905f140a6 /]# gem install json
bash: gem: command not found
[root@497905f140a6 /]# yum install gem
。。。。
Installed:
rubygems.noarch 0:2.0.14.1-30.el7
Dependency Installed:
libyaml.x86_64 0:0.1.4-11.el7_0 ruby.x86_64 0:2.0.0.648-30.el7 ruby-irb.noarch 0:2.0.0.648-30.el7 ruby-libs.x86_64 0:2.0.0.648-30.el7
rubygem-bigdecimal.x86_64 0:1.2.0-30.el7 rubygem-io-console.x86_64 0:0.4.2-30.el7 rubygem-json.x86_64 0:1.7.7-30.el7 rubygem-psych.x86_64 0:2.0.0-30.el7
rubygem-rdoc.noarch 0:4.0.0-30.el7
Complete!
[root@497905f140a6 /]# gem install json
Fetching: json-2.1.0.gem (100%)
Building native extensions. This could take a while...
ERROR: Error installing json:
ERROR: Failed to build gem native extension.
/usr/bin/ruby extconf.rb
mkmf.rb can't find header files for ruby at /usr/share/include/ruby.h
Gem files will remain installed in /usr/local/share/gems/gems/json-2.1.0 for inspection.
Results logged to /usr/local/share/gems/gems/json-2.1.0/ext/json/ext/generator/gem_make.out
2.11 針對已經安裝json的docker.io/centos鏡像庫打包，tag命名爲v2
[root@497905f140a6 /]# docker commit -m ="add new image" -a="hmilyylimh" 497905f140a6 docker.io/centos:v2 bash: docker: command not found [root@497905f140a6 /]# exit exit [root@svr01 ~]# docker commit -m ="add new image" -a="HEHUI231" 497905f140a6 docker.io/centos:v2 sha256:11efb35f320cec46c83bc4dcbc184c8d45dcb3e369105251d70e2336fd261c92 [root@svr01 ~]# docker images; REPOSITORY TAG IMAGE ID CREATED SIZE docker.io/centos v2 11efb35f320c 17 seconds ago 307.5 MB docker.io/centos latest 3fa822599e10 2 weeks ago 203.5 MB docker.io/hello-world latest f2a91732366c 3 weeks ago 1.848 kB
2.12 給剛剛打包的 docker.io/centos:v2 鏡像設置鏡像標籤
[root@svr01 ~]# docker tag 11efb35f320c docker.io/centos:v22 [root@svr01 ~]# docker images; REPOSITORY TAG IMAGE ID CREATED SIZE docker.io/centos v2 11efb35f320c 36 minutes ago 307.5 MB docker.io/centos v22 11efb35f320c 36 minutes ago 307.5 MB docker.io/centos latest 3fa822599e10 2 weeks ago 203.5 MB docker.io/hello-world latest f2a91732366c 3 weeks ago 1.848 kB
2.13 刪除 docker.io/centos:v2 鏡像文件
[root@svr01 ~]# docker rmi docker.io/centos:v22 Untagged: docker.io/centos:v22 [root@svr01 ~]# docker images; REPOSITORY TAG IMAGE ID CREATED SIZE docker.io/centos v2 11efb35f320c 37 minutes ago 307.5 MB docker.io/centos latest 3fa822599e10 2 weeks ago 203.5 MB docker.io/hello-world latest f2a91732366c 3 weeks ago 1.848 kB
2.14 刪除單個已經中止的容器
[root@svr01 ~]# docker rm 47de3399a0ab 47de3399a0ab [root@svr01 ~]# docker ps -l CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
2.15 刪除全部已經中止的容器
[root@svr01 ~]# docker rm $(docker ps -a -q) ca94bd87299f 43a27d23f3ee 497905f140a6 fb9512c00a84 9f053696bedb 565b5d3e5139 9c2518ba47c8 1abaaef82836 e5b39fc724ab [root@svr01 ~]# docker ps -l CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
2.16 殺掉單個正在執行的容器
[root@svr01 ~]# docker kill 47de3399a0ab 47de3399a0ab [root@svr01 ~]# docker ps -l CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
2.17 殺掉全部正在執行的容器
[root@svr01 ~]# docker kill $(docker ps -q) ca94bd87299f 43a27d23f3ee 497905f140a6 fb9512c00a84 9f053696bedb 565b5d3e5139 9c2518ba47c8 1abaaef82836 e5b39fc724ab [root@svr01 ~]# docker ps -l CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
2.18 將image文件保存到磁盤目錄
[root@svr01 ~]# docker images; REPOSITORY TAG IMAGE ID CREATED SIZE docker.io/centos v2 11efb35f320c 5 hours ago 307.5 MB docker.io/frolvlad/alpine-oraclejdk8 latest 4f03dc990224 12 days ago 170.1 MB docker.io/centos latest 3fa822599e10 2 weeks ago 203.5 MB docker.io/hello-world latest f2a91732366c 3 weeks ago 1.848 kB [root@svr01 ~]# docker save 4f03dc990224 > /home/install/alpine-oraclejdk8.tar [root@svr01 ~]# ls /home/install/ alpine-oraclejdk8.tar hive MySQL-5.6.27-1.el7.x86_64.rpm-bundle.tar openssl-1.0.2l.tar.gz redis-3.2.9.tar.gz apache-flume-1.7.0-bin.tar.gz httpd-2.4.26.tar.gz mysql-5.7.18-1.el7.x86_64.rpm-bundle.tar pcre-8.41.tar.gz zlib-1.2.11.tar.gz hadoop memcached-1.4.39.tar.gz nginx-1.12.0.tar.gz php-5.6.31.tar.gz zookeeper-3.4.10.tar.gz
2.19 將磁盤的鏡像文件導入到docker中，而且經過 docker tag 修更名稱和tag
[root@svr01 ~]# docker load < /home/install/centos-v2.tar e9613a472968: Loading layer [==================================================>] 105 MB/105 MB Loaded image ID: sha256:11efb35f320cec46c83bc4dcbc184c8d45dcb3e369105251d70e2336fd261c92 [root@svr01 ~]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE <none> <none> 11efb35f320c 5 hours ago 307.5 MB docker.io/frolvlad/alpine-oraclejdk8 latest 4f03dc990224 12 days ago 170.1 MB docker.io/centos latest 3fa822599e10 2 weeks ago 203.5 MB docker.io/hello-world latest f2a91732366c 3 weeks ago 1.848 kB [root@svr01 ~]# docker tag 11efb35f320c docker.io/centos:v2 [root@svr01 ~]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE docker.io/centos v2 11efb35f320c 5 hours ago 307.5 MB docker.io/frolvlad/alpine-oraclejdk8 latest 4f03dc990224 12 days ago 170.1 MB docker.io/centos latest 3fa822599e10 2 weeks ago 203.5 MB docker.io/hello-world latest f2a91732366c 3 weeks ago 1.848 kB
2.20 驗證剛剛加載的鏡像可否成功運行，能進入的話，而且成功exit則導入成功
[root@svr01 ~]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE docker.io/centos v2 11efb35f320c 5 hours ago 307.5 MB docker.io/frolvlad/alpine-oraclejdk8 latest 4f03dc990224 12 days ago 170.1 MB docker.io/centos latest 3fa822599e10 2 weeks ago 203.5 MB docker.io/hello-world latest f2a91732366c 3 weeks ago 1.848 kB [root@svr01 ~]# docker run -it docker.io/centos:v2 [root@0a87728d1798 /]# ls anaconda-post.log bin dev etc home lib lib64 media mnt opt proc root run sbin srv sys tmp usr var [root@0a87728d1798 /]# exit exit [root@svr01 ~]#
3、下載地址
https://gitee.com/ylimhhmily/SpringCloudTutorial.gitpython
SpringCloudTutorial交流QQ羣: 235322432mysql
SpringCloudTutorial交流微信羣: 微信溝通羣二維碼圖片連接linux
歡迎關注，您的確定是對我最大的支持!!!nginx
相關文章
- 1. windows下 安裝 rabbitMQ 及操做經常使用命令 windows下 安裝 rabbitMQ 及操做經常使用命令
- 2. vagrant 經常使用命令以及經常使用操做
- 3. centos7安裝docker及docker經常使用命令
- 4. docker安裝及經常使用命令
- 5. Centos8安裝經常使用軟件及家用操做命令
- 6. docker經常使用操做命令
- 7. docker 經常使用操做命令
- 8. Docker 經常使用操做命令
- 9. Ubuntu下安裝Docker，及Docker的一些經常使用命令操做
- 10. 01 . Docker原理部署及經常使用操做命令
- 更多相關文章...
- • Docker 安裝 CentOS - Docker教程
- • Docker 安裝 MongoDB - Docker教程
- • Docker 清理命令
- • Composer 安裝與使用
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。
最新文章
- 1. 字節跳動21屆秋招運營兩輪面試經驗分享
- 2. Java 3 年，25K 多嗎？
- 3. mysql安裝部署
- 4. web前端開發中父鏈和子鏈方式實現通信
- 5. 3.1.6 spark體系之分佈式計算-scala編程-scala中trait特性
- 6. dataframe2
- 7. ThinkFree在線
- 8. 在線畫圖
- 9. devtools熱部署
- 10. 編譯和鏈接
歡迎關注本站公眾號,獲取更多信息
相關文章