Docker : Add Images2018/05/30 |
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. |
# show images [root@dlp ~]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE docker.io/fedora latest cc510acfcd70 3 weeks ago 253 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 ... 2aea016e5d98 fedora "/bin/bash -c 'dnf..." About a minute ago Exited (0) 14 seconds ago ... # add the image [root@dlp ~]# docker commit 2aea016e5d98 srv.world/fedora_httpd sha256:f153182d83f9b3d82042bfe41cc65d13b80ac48cde27b24306cc484f9cdf0d02 # show images [root@dlp ~]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE srv.world/fedora_httpd latest f153182d83f9 15 seconds ago 525 MB docker.io/fedora latest cc510acfcd70 3 weeks ago 253 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 |
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