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*Run a container using the existing image for httpd.
**Make some changes to the index.html file by using docker exec (The exact content is not important just include some text that says ‘version 1’, I just want to see that you can modify it).
**Make some changes to the httpd.conf file (e.g. replace the ServerName parameter, so it stops throwing error messages).
*Commit these changes and push your image to docker hub with the tag v1.
*Create a dockerfile to create a new image from your v1, with the following changes:
**At least one label identifying yourself as the maintainer for the image.
**Identify port 80 as accessible for machines that run containers based on this image.
**Identify the DocumentRoot as a place that directories can be mounted into.
*Build the image based on your dockerfile, tagging it as v2.
*Run a container based on your v2 image. Access it to make sure it works.
*Once you are sure it works, upload your v2 image to docker hub.
==Investigation 3: Managing how images are deployedCreating a Docker Swarm ==*Install docker on two more VMs.*Pick one of your machines to be the swarm manager, start a swarm on it, and make the other two join the swarm as nodes.
*Write a compose file that will deploy one copy of your container onto each of your machines.
==Investigation 4: Managing how images are deployed==
*Modify your compose file so that two copies of your v2 image will be run on each of your worker machines, but none on the swarm manager.
==Submission==
