Docker Copy Operations

Task:

 The Nautilus DevOps team has some conditional data present on App Server 1 in Stratos Datacenter. There is a container ubuntu_latest running on the same server. We received a request to copy some of the data from the docker host to the container. Below are more details about the task. 

On App Server 1 in Stratos Datacenter copy an encrypted file /tmp/nautilus.txt.gpg from docker host to ubuntu_latest container (running on same server) in /tmp/ location. Please do not try to modify this file in any way.

Step 1) Login to the App Server 1 as root user

[tony@stapp01 ~]$ sudo su -

We trust you have received the usual lecture from the local System

Administrator. It usually boils down to these three things:

    #1) Respect the privacy of others.

    #2) Think before you type.

    #3) With great power comes great responsibility.

[sudo] password for tony: 

Step 2) Verify if the container ubuntu_latest is running

[root@stapp01 ~]# docker ps

CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES

bcdf6ee77b4e        ubuntu              "/bin/bash"         5 minutes ago       Up 5 minutes                            ubuntu_latest

Step 3) Verify if the file  /tmp/nautilus.txt.gpg  is present at the location 

[root@stapp01 ~]# ls /tmp/nautilus.txt.gpg 

/tmp/nautilus.txt.gpg

Step 4) Copy the file from docker host to container ubuntu_latest

[root@stapp01 ~]# docker cp /tmp/nautilus.txt.gpg bcdf6ee77b4e:/tmp/

Step 5) Validate if the file is present inside the container. 

[root@stapp01 ~]# docker container attach bcdf6ee77b4e

root@bcdf6ee77b4e:/# ls -l /tmp

total 4

-rw-r--r-- 1 root root 74 May 23 02:59 nautilus.txt.gpg