File creation in the z/OS USS:  You can use the ISPF interface or log on through an SSH session.  GLYPH<SM590000> In an SSH session, just follow the same steps that you took to create the file locally in the zCX  instance. Using the ISPF interface, you must navigate to  z/OS UNIX Directory List Utility (issuing 3.17 as line command). GLYPH<SM590000> In the z/OS USS environment, you must copy the file that you create into the zCX instance. A  simple way to achieve that goal would be to use  scp  (secure copy) from an SSH session, as  shown by Example 5-8. Here is an example  scp  command: scp -P 8022 /u/zcxadm6/index.html admin@129.40.23.79:/home/admin/index.html If you are connecting to the zCX instance for the first time, you must enter  yes  at the prompt  to confirm the fingerprint, as shown by the  bold  text in Example 5-8: If you connected before and already saved the fingerprint, the response looks similar to what  you see in Example 5-9. Example 5-8 Copy with confirmation Example 5-9 Copy withouth confirmation The authenticity of host '[129.40.23.78]:8022 ([129.40.23.78]:8022)' can't be established. ECDSA key fingerprint is SHA256:IA5Sw4oNK7wODhFGkH4ayyJNvT73m1uvQprHjqOC41M. Are you sure you want to continue connecting (yes/no)?  yes FOTS2274 Warning: Permanently added '[129.40.23.78]:8022' (ECDSA) to list of known hosts. index.html  100% 90 0.1KB/s 00:00 index.html 100% 90 0.1KB/s 00:00 After the successful copy, you can log off from z/OS USS and log on to the zCX instance. The generated file can now be copied into the running nginx instance. To do so, issue the  following  copy  command.  docker cp /home/admin/index.html quizzical_leavitt:/usr/share/nginx/html This command copies the  index.html  file from the local directory into the  quizzical_leavitt containers  directory  /usr/share/nginx/html . When the  copy  command is complete, you can refresh the website in a browser. The new  content looks similar to what you see in Figure 5-2. Figure 5-2 Personal output from the nginx web server Chapter 5. Your first running Docker container in zCX  103