using docker(# export import container)

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docker에 설치된 데이터들을 backup -> restore 해보기

1. 환경준비
    centos 7.6
    docker

2.backup container
[root@kylin hbase-2.2.0]# docker ps -a
CONTAINER ID        IMAGE                             COMMAND                  CREATED             STATUS                          PORTS               NAMES
73b1430f15b7        centos                            "/bin/bash"              2 minutes ago       Exited (0) About a minute ago                       hbasemaster
4c865448f160        centos:7                          "init"                   30 hours ago        Up 30 hours                                         namenode
3418386aa3a9        ubuntu                            "/bin/bash"              46 hours ago        Exited (100) 31 hours ago                           hadoop-base
77b64bf03966        kyligence/superset-kylin:latest   "bin/bootstrap.sh ..."   2 days ago          Exited (137) 47 hours ago                           kylin
[root@kylin hbase-2.2.0]# docker commit -p 4c865448f160 namenode
sha256:04c47bead303230a48aa18bde596d6251fec69e593f0de318868eb612bae3c8a
[root@kylin hbase-2.2.0]#docker export 4c865448f160 > hadoopct.tar
[root@kylin hbase-2.2.0]#

 ### import docker image
[root@kylin ~]# docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
[root@kylin ~]# ls
anaconda-ks.cfg  hadoopct.tar  initial-setup-ks.cfg
[root@kylin ~]# docker import hadoopct.tar hadoop1

sha256:ff75e855b2512cafe9c63be3cc3c8444b02e11eb1ec59ff43bd29a86e5b913c6

 [root@kylin ~]# docker images
REPOSITORY          TAG                 IMAGE ID            CREATED              SIZE

hadoop1             latest              ff75e855b251        About a minute ago   1.7 GB

 [root@kylin ~]# docker run -i -t --name hello hadoop1 /bin/bash
[root@a9bb5aa82130 /]#





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