In this hands-on lab scenario, you will be connecting to and modifying a Docker container. In addition, you will save the container changes to a new image and start a new container from the newly created image. Upon completion of this lab, you will know how to make small modifications to an existing container and save those changes as an image for future use.
Learning Objectives
Successfully complete this lab by achieving the following learning objectives:
- Modify a Container
- Verify the container
web-1
is running. - Connect to the container.
- Add the message "A guru was here in this container" to the file
/usr/share/nginx/html/index.html
.
- Verify the container
- Commit the Modified Container
Commit the changes to the container
web-1
to a new image namedserver-1:5000/my-web:v1
.- Verify the Container Changes
- Start a new container named
web-2
using the imageserver-1:5000/my-web:v1
. Map container port80
to host port8080
. - Using
curl
and a web browser, verify your changes are present onweb-2
.
- Start a new container named