docker操作镜像

[root@localhost ~]# docker commit 797b5d4c677e mylab:v1.0
sha256:a1404d166a032ae9e736f4ba10c9e66ac9bb4df9bf1a4b2c1bd33b2a2b895d97
[root@localhost ~]# docker images
REPOSITORY    TAG       IMAGE ID       CREATED              SIZE
mylab         v1.0      a1404d166a03   3 seconds ago        13.3kB
<none>        <none>    91af687f2d4d   About a minute ago   13.3kB
demo          v1.0      32cd1d168433   18 hours ago         908MB
ubuntu        latest    d2e4e1f51132   2 weeks ago          77.8MB
hello-world   latest    feb5d9fea6a5   7 months ago         13.3kB
centos        latest    5d0da3dc9764   8 months ago         231MB
httpd         latest    e40405f80704   3 years ago          132MB
[root@localhost ~]#

[root@localhost ~]# docker save -o mylab.tar httpd:latest
[root@localhost ~]# ll

总用量 133528
-rw-------. 1 root root       807  5月 11 15:35 anaconda-ks.cfg
-rw-r--r--. 1 root root 136700416  5月 12 08:49 httpd.tar
-rw-------. 1 root root     22528  5月 20 10:31 mylab.tar
[root@localhost ~]#

[root@localhost ~]# docker load -i mylab2.tar
Loaded image: hello-world:latest
[root@localhost ~]# docker images
REPOSITORY    TAG       IMAGE ID       CREATED          SIZE
<none>        <none>    a1404d166a03   17 minutes ago   13.3kB
demo          v1.0      32cd1d168433   18 hours ago     908MB
ubuntu        latest    d2e4e1f51132   2 weeks ago      77.8MB
hello-world   latest    feb5d9fea6a5   7 months ago     13.3kB
centos        latest    5d0da3dc9764   8 months ago     231MB
httpd         latest    e40405f80704   3 years ago      132MB
[root@localhost ~]#