日常运维之持续集成docker测试环境

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发布时间：2019-05-22

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运行第一个容器

[root@localhost ~]# docker run -i -t centos /bin/bashUnable to find image 'centos:latest' locallylatest: Pulling from library/centos8ba884070f61: Pull complete Digest: sha256:8d487d68857f5bc9595793279b33d082b03713341ddec91054382641d14db861Status: Downloaded newer image for centos:latest[root@dd77efe3aa68 /]#

查看当前系统中容器的列表

[root@localhost ~]# docker ps -a #查看当前中容器的列表CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS                          PORTS               NAMESdd77efe3aa68        centos              "/bin/bash"              2 minutes ago       Exited (0) About a minute ago                       determined_lehmann88b7cea2ef07        nginx               "/bin/bash"              2 weeks ago         Exited (130) 2 weeks ago                            objective_gagarin780086dba00d        httpd               "httpd-foreground"       2 weeks ago         Exited (0) 2 weeks ago                              zen_fermi7500dd5b88c9        nginx               "nginx -s reload"        2 weeks ago         Exited (1) 2 weeks ago                              nostalgic_keller31a038906506        nginx               "nginx -g 'daemon of…"   2 weeks ago         Exited (0) 2 weeks ago                              flamboyant_lamarr44316cfd52e9        ubuntu:15.10        "/bin/sh -c 'while t…"   2 weeks ago         Exited (137) 2 weeks ago                            adoring_chatterjee5da8d136bf33        ubuntu:15.10        "bin/sh 'while true;…"   2 weeks ago         Exited (127) 2 weeks ago                            compassionate_shirley86347adc606e        ubuntu:15.10        "bin/sh 'while true;…"   2 weeks ago         Exited (127) 2 weeks ago                            infallible_dhawan9835c743b019        ubuntu:15.10        "/bin/bash"              2 weeks ago         Exited (0) 2 weeks ago                              gracious_wescoff4345d801c414        ubuntu:15.10        "/bin/echo hello"        2 weeks ago         Exited (0) 2 weeks ago                              modest_meitner387c0af7b665        ubuntu:15.10        "/bin/echo hello"        2 weeks ago         Exited (0) 2 weeks ago                              stupefied_archimedesb7b7d8f0a788        nginx               "nginx -g 'daemon of…"   2 weeks ago         Exited (137) 11 days ago                            rik_nginx

[root@localhost ~]# docker ps #当前正在运行的容器CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES

给容器命名

[root@localhost ~]# docker run --name fleming_test -i -t centos /bin/bash[root@569134b8fedd /]#

启动停止的容器

[root@localhost ~]# docker start fleming_test #启动停止的容器fleming_test

附着到正在运行的容器

[root@localhost ~]# docker attach fleming_test[root@569134b8fedd /]#

列出镜像

[root@localhost ~]# docker imagesREPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
                 
    
                   8dce45f00be0        2 weeks ago         88.9MBnginx               latest              bb776ce48575        3 weeks ago         109MBhttpd               latest              d4a07e6ce470        4 weeks ago         132MBcentos              latest              9f38484d220f        7 weeks ago         202MBubuntu              latest              94e814e2efa8        7 weeks ago         88.9MBhello-world         latest              fce289e99eb9        4 months ago        1.84kBubuntu              15.10               9b9cb95443b5        2 years ago         137MBtraining/webapp     latest              6fae60ef3446        3 years ago         349MB

创建测试docker镜像

创建一个要修改的定制容器

[root@localhost docker]# docker run -i -t centos /bin/bash #创建一个容器[root@localhost docker]# docker ps -l -q #得到刚创建容器的ide3b2a7c3b01f

用本地系统做成的镜像新建测试容器

[root@localhost ~]# docker run -d -p 231:22 --name jason centos7 /usr/sbin/sshd -D　//启动容器,并绑定容器端口22到宿主主机, 可以有多个-p 绑定多个端口,例如22端口让远程客户端连接,8080 可以访问容器内tomcat[root@localhost ~]# ssh root@192.168.0.252 -p 220The authenticity of host '[192.168.0.252]:220 ([192.168.0.252]:220)' can't be established.ECDSA key fingerprint is SHA256:8lY/a8uaXKoaGTVyun4LSXzClraZ5AiodB1kKarSNIE.ECDSA key fingerprint is MD5:74:fa:33:b5:06:e9:0c:c1:dd:80:84:1b:2e:38:33:6b.Are you sure you want to continue connecting (yes/no)? yesWarning: Permanently added '[192.168.0.252]:220' (ECDSA) to the list of known hosts.root@192.168.0.252's password: Last login: Mon May  6 10:45:39 2019[root@faff97aef1d1 ~]# ifconfigeth0: flags=4163
   
      mtu 1500        inet 172.17.0.3  netmask 255.255.0.0  broadcast 172.17.255.255

通过xshell登录到自己的容器即可。在容器中操作和在centos7中操作是一样的。Xshell登录容器方式如下