docker镜像导出和导入
api
输入
docker --help
找到
Commands:
镜像管理
image Manage images
输入
docker image
得到镜像管理命令
[root home]# docker image
Usage: docker image COMMAND
Manage images
Commands:
build Build an image from a Dockerfile
history Show the history of an image
import Import the contents from a tarball to create a filesystem image
inspect Display detailed information on one or more images
load Load an image from a tar archive or STDIN
ls List images
prune Remove unused images
pull Pull an image or a repository from a registry
push Push an image or a repository to a registry
rm Remove one or more images
save Save one or more images to a tar archive (streamed to STDOUT by default)
tag Create a tag TARGET_IMAGE that refers to SOURCE_IMAGE
我们用到的就是save保存镜像到某个位置
[root@shixiaodong home]# docker image save --help
Usage: docker image save [OPTIONS] IMAGE [IMAGE...]
Save one or more images to a tar archive (streamed to STDOUT by default)
Options:
-o, --output string Write to a file, instead of STDOUT
-o是 -output的缩写
导出命令
docker image save -o /home/des.tar docker.elastic.co/elasticsearch/elasticsearch
REPOSITORY TAG IMAGE ID CREATED SIZE
adoptopenjdk/openjdk8 latest bbba8bf4d091 5 months ago 320MB
nacos/nacos-server latest e6a65052d0b1 5 months ago 1.08GB
zyyd-jstx-web v1.0 8e7a7c91bd66 9 months ago 384MB
redis latest ccee4cdf984f 16 months ago 105MB
hello-world latest d1165f221234 18 months ago 13.3kB
mcr.microsoft.com/mssql/server 2019-latest a8948ed97d80 19 months ago 1.39GB
nacos/nacos-server 1.4.0 7942818ce6f4 21 months ago 921MB
docker.elastic.co/elasticsearch/elasticsearch 7.7.0 7ec4f35ab452 2 years ago 757MB
kibana 7.4.2 230d3ded1abc 2 years ago 1.1GB
elasticsearch 7.4.2 b1179d41a7b4 2 years ago 855MB
[ home]# docker image save -o /home/des.tar docker.elastic.co/elasticsearch/elasticsearch
导出注意事项
docker image save -o /home/des.tar docker.elastic.co/elasticsearch/elasticsearch
-o 后面是导出到哪里 在后面是镜像名称，不要用id不然导入后会没有名称和版本号
导入
docker image load -i /home/des.tar
同样看帮助文档