1.鏡像：images search pull run -t -i commit build import save rmi load
1.1 列出鏡像
docker images （列出本地已有鏡像列表） REPOSITORY(所在倉庫) TAG(標記) IMAGE ID(唯一ID號) CREATE(創建時間) VIRTUAL SIZE(鏡像大小)
1.2 搜索鏡像
docker search 鏡像名
1.3 下載鏡像
docker pull 鏡像名 （默認在docker hub中下載） docker pull IP/域名:5000/鏡像名 dl.dockerpool.com:5000/ubuntu:12.04 具體請參考http://dockerpool.com/
1.4 修改鏡像_01(docker commit)
1.4.1
鏡像默認使用的國外的的源，修改成國內的源，如morris.163.com root@vmc01:~# docker run -t -i ubuntu /bin/bash root@f63998a68f59:/# apt-get update (國外的可能比較慢) root@f63998a68f59:/# apt-get install vim root@f63998a68f59:/# vim /etc/apt/sources.list ....加入源 root@f63998a68f59:/#apt-get update （改完之後就很快） root@f63998a68f59:/#exit root@vmc01:~# docker commit -m "added 163 mirrors" -a "docker new" f63998a68f59 ubuntu:v2_163 root@vmc01:~# docker images REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE ubuntu v2_163 8c525f0bec06 8 seconds ago 263 MB debian latest d4b2ba78e3b4 3 weeks ago 125.1 MB ubuntu latest af88597ec24b 3 weeks ago 187.9 MB
1.5 修改鏡像_02(docker build)
1.5.1
docker commit 擴展鏡像適合個人使用，相比較，使用dockfile 創建鏡像更方便，易於共享；
1.5.2
比如我通過Dockerfile 來創建一個可以提供http服務的容器；
root@vmc01:~/ljp/docker# mkdir -p ubuntu_lijp root@vmc01:~/ljp/docker# cd ubuntu_lijp/ root@vmc01:~/ljp/docker/ubuntu_lijp# vim Dockerfile #this is a docker FROM ubuntu:v2_163 MAINTAINER <[email protected]> RUN apt-get update RUN apt-get install -qqy apache2 root@vmc01:~/ljp/docker/ubuntu_lijp# docker build -t="ubuntu:v3_apache2" /root/ljp/docker/ubuntu_lijp/ Sending build context to Docker daemon 2.048 kB Sending build context to Docker daemon Step 0 : FROM ubuntu:v2_163 ---> 8c525f0bec06 Step 1 : MAINTAINER <[email protected]> ---> Running in f7d56b23b140 ---> 2e796c9cd775 Removing intermediate container f7d56b23b140 Step 2 : RUN apt-get update ---> Running in 8fae114e67be .... root@vmc01:~/ljp/docker/ubuntu_lijp# docker images REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE ubuntu v3_apache2 71f2b7fb0272 50 seconds ago 300.1 MB ubuntu v2_163 8c525f0bec06 44 minutes ago 263 MB debian latest d4b2ba78e3b4 3 weeks ago 125.1 MB ubuntu latest af88597ec24b 3 weeks ago 187.9 MB root@vmc01:~/ljp/docker/ubuntu_lijp# docker run -t -i ubuntu:v3_apache2 /bin/bash root@6094bbf8d1d7:/# /etc/init.d/apache2 start ... root@6094bbf8d1d7:/# netstat -antp Active Internet connections (servers and established) Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp6 0 0 :::80 :::* LISTEN 54/apache2 root@6094bbf8d1d7:/# ifconfig eth0 eth0 Link encap:Ethernet HWaddr 02:42:ac:11:00:0d inet addr:172.17.0.13 Bcast:0.0.0.0 Mask:255.255.0.0 root@vmc01:~# curl 172.17.0.13 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> ... 上面步驟完整將使用dockerfile創建images的步驟演示出來了，有很多需要優化的地方，將在學習dockfile時集中學習；
1.6 鏡像導入，導出
1.6.1
從本地鏡像文件導入本地鏡像庫(https://openvz.org/Download/template/precreated)
root@vmc01:~/ljp/docker# ls -lh total 219M -rw-r--r-- 1 root root 219M Jan 29 12:12 centos-6-x86_64.tar.gz drwxr-xr-x 2 root root 4.0K Jan 29 11:44 ubuntu_lijp root@vmc01:~/ljp/docker# cat centos-6-x86_64.tar.gz | docker import - centos:6_v1 17d0130ca4cc7e644eb20e5052956973332bdd0c9ee23e79872d1859e2101f8d root@vmc01:~/ljp/docker# docker images REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE centos 6_v1 17d0130ca4cc 32 seconds ago 612 MB ubuntu v3_apache2 71f2b7fb0272 41 minutes ago 300.1 MB ubuntu v2_163 8c525f0bec06 About an hour ago 263 MB debian latest d4b2ba78e3b4 3 weeks ago 125.1 MB ubuntu latest af88597ec24b 3 weeks ago 187.9 MB
1.6.2
從鏡像導出到模板文件
root@vmc01:~/ljp/docker# docker save -o ubuntu_14.04_apache2.tar ubuntu:v3_apache2 root@vmc01:~/ljp/docker# ls centos-6-x86_64.tar.gzubuntu_14.04_apache2.tar ubuntu_lijp root@vmc01:~/ljp/docker# ls -lh total 517M -rw-r--r-- 1 root root 219M Jan 29 12:12 centos-6-x86_64.tar.gz -rw-r--r-- 1 root root 298M Jan 29 12:23 ubuntu_14.04_apache2.tar drwxr-xr-x 2 root root 4.0K Jan 29 11:44 ubuntu_lijp root@vmc01:~/ljp/docker# 1.6.3
導入的其他方式
docker load --input centos-6-x86_64.tar.gz docker load < centos-6-x86_64.tar.gz #將導入鏡像以及其相關的元數據信息（包括標籤等）
1.6.4
移除本地鏡像
root@vmc01:~/ljp/docker# docker rmi centos:6_v1 Untagged: centos:6_v1 Deleted: 17d0130ca4cc7e644eb20e5052956973332bdd0c9ee23e79872d1859e2101f8d root@vmc01:~/ljp/docker# docker images REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE ubuntu v3_apache2 71f2b7fb0272 59 minutes ago 300.1 MB ubuntu v2_163 8c525f0bec06 About an hour ago 263 MB debian latest d4b2ba78e3b4 3 weeks ago 125.1 MB ubuntu latest af88597ec24b 3 weeks ago 187.9 MB #移除鏡像需要預先刪除依賴於此鏡像的容器docker rm
###鏡像導入docker import 與 docker load 的區別：
1.load 是將整個鏡像存儲文件導入本地鏡像庫，記錄完整，體積大
2.import 是見容器快照文件導入本地鏡像庫，快照文件沒有歷史記錄和元數據信息，體積小，可以重新指定標籤和元數據信息