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Docker : Add Images
2017/07/30 |
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Add Images for Containers.
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| [1] | For exmaple, update official image with installing httpd and add it as a new image for container. The container is generated every time for executing docker run command, so add the latest executed container like follows. |
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# show images [root@dlp ~]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE registry.fedoraproject.org/fedora latest 7f17e6b4a386 4 weeks ago 232 MB # start a Container and install httpd [root@dlp ~]# docker run fedora /bin/bash -c "dnf -y upgrade; dnf -y install httpd" docker ps -a | head -2 CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 95ff208ff0ac fedora "/bin/bash -c 'dnf..." 5 minutes ago Exited (0) 5 minutes ago hardcore_... # add the Image [root@dlp ~]# docker commit 95ff208ff0ac srv.world/fedora_httpd sha256:441834eaabe4fa33166faffcef0747020f9626283ddaa229f98204eae7360f41 # show images [root@dlp ~]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE srv.world/fedora_httpd latest 441834eaabe4 12 seconds ago 478 MB registry.fedoraproject.org/fedora latest 7f17e6b4a386 4 weeks ago 232 MB # Generate a Container from the new image and execute [whereis] to make sure httpd exists [root@dlp ~]# docker run srv.world/fedora_httpd /usr/bin/whereis httpd httpd: /usr/sbin/httpd /usr/lib64/httpd /etc/httpd /usr/share/httpd /usr/share/man/man8/httpd.8.gz |