Create a Container Action Using GitHub Actions

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Create a Container Action Using GitHub Actions

In order to optimize the performance of our application, we need to check the memory allocated to the container during build time. Using a GitHub Action, we will send input and output parameters to the runner in order to insert a greeting as well as verify total memory from within the build logs.

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Lab Info

Level

Beginner

Last updated

Sep 23, 2025

Duration

30m

Challenge

Create a Container to Run the Action

In order to run our GitHub action, we must create a container. Set up the build instructions for our container in order to run the container on our GitHub runner.
Challenge

Create a Shell Script to Output Memory Info

In order to retrieve memory info from the container, we must create a script to retrieve this information, and then run the script on the container.
Challenge

Create a Container GitHub Action
The action type must be a Container and include the following:
- A name and description
- At least one required input
- At least one output
Challenge

Add GitHub Workflow
In order to run the build, we must provide a workflow. Insert the workflow in the directory required by GitHub, then run the build on ubuntu-latest with the following steps:
- Checkout the repo
- Run the action from the previous step
- Output the total memory to the build log

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