docker初體驗:docker 自己定製映象
阿新 • • 發佈：2021-08-28
| Docker 是一個開源的應用容器引擎，基於 Go 語言 並遵從 Apache2.0 協議開源。Docker 可以讓開發者打包他們的應用以及依賴包到一個輕量級、可移植的容器中，然後釋出到任何流行的Linux機器上，也可以實現虛擬化。接下來為大家演示一下docker部署wordpress部落格系統。 |
[root@chaols ~]# sudo yum remove docker \ > docker-client \ > docker-client-latest \ > docker-common \ > docker-latest \ > docker-latest-logrotate \ > docker-logrotate \ > docker-engine
[root@chaols ~]# yum install -y yum-utils安裝docker
[root@chaols ~]# yum install docker-ce docker-ce-cli containerd.io啟動docker
[root@chaols ~]# systemctl start docker檢視docker映象
剛剛安裝docker是沒有映象的
[root@chaols ~]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE下載centos映象
[root@chaols ~]# docker pull centos
預設centos映象沒有ifconfig
自定義dockerfile檔案FROM centos ENV MYPATH /usr/local WORKDIR $MYPATH RUN yum install -y net-tools RUN yum install -y vim EXPOSE 80 CMD echo $MYPATH CMD echo "-----end-----" CMD /bin/bash"開始製作
docker build -f ./dockerfile_chao_centos -t chao.centos:0.1 .
root@chaols ~]# docker run -it --name test chao.centos:0.1 /bin/bash驗證ifconfig
[root@f5be14eebc1e local]# 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 6 bytes 516 (516.0 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