24 lines
588 B
Markdown
24 lines
588 B
Markdown
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## Layer by Layer
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### Objective
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Learn about image layers
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### Requirements
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Make sure Docker is installed on your system and the service is started
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```
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# Fedora/RHEL/CentOS
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rpm -qa | grep docker
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systemctl status docker
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```
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### Instructions
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1. Write a Dockefile. Any Dockefile! :) (just make sure it's a valid one)
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2. Build an image using the Dockerfile you've wrote
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3. Which of the instructions you've used, created new layers and which added image metadata?
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4. What ways are there to confirm your answer to the last question?
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5. Can you reduce the size of the image you've created?
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