Docker Copy Operations

 Question : The Nautilus DevOps team has some conditional data present on App Server 2 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 2 in Stratos Datacenter copy an encrypted file /tmp/nautilus.txt.gpg from docker host to ubuntu_latest container (running on same server) in /usr/src/ location. Please do not try to modify this file in any way.

 Please Note :-  Perform the below commands based on your question  server,  user name & other details might differ . So please read task carefully before executing. 

All the Best 👍

Solution:  

 1. At first login on app server  as per the task & Switch to  root user 

thor@jump_host /$ ssh steve@stapp02 The authenticity of host 'stapp02 (172.16.238.11)' can't be established. ECDSA key fingerprint is SHA256:weaGymLcSWqaAGcLzZFDlklQfE0lt1aXhOrG6KoBppI. ECDSA key fingerprint is MD5:82:38:e7:9f:da:16:f7:7a:62:5f:08:c7:a5:87:81:0d. Are you sure you want to continue connecting (yes/no)? yes Warning: Permanently added 'stapp02,172.16.238.11' (ECDSA) to the list of known hosts. steve@stapp02's password: [steve@stapp02 ~]$ 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 steve: [root@stapp02 ~]#

2. Run Below command to check existing docker container running     

[root@stapp02 ~]# docker ps CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES 41bcf083aad3        ubuntu              "bash"              5 minutes ago       Up 5 minutes                                               ubuntu_latest [root@stapp02 ~]#

3. Copy an encrypted file /tmp/nautilus.txt.gpg on docker container ubuntu_latest

     

[root@stapp02 ~]# docker cp /tmp/nautilus.txt.gpg ubuntu_latest:/usr/src [root@stapp02 ~]#

  

4. Validate the task by running the command

[root@stapp02 ~]# docker exec ubuntu_latest  ls -ltr /usr/src total 4 -rw-r--r-- 1 root root 74 Jun 29 04:53 nautilus.txt.gpg [root@stapp02 ~]#

5.  Click on Finish & Confirm to complete the task successful

Happy Learning!!!!

Apart from this if you need more clarity,  I have made a  tutorial video on this , please go through and share your comments. Like and share the knowledge