Question 1

How to integrate docker-image-size-limit with Jenkins pipeline?

Accepted Answer

Install the Python package via pip on your Jenkins agent or use the pre-built Docker image. Add a shell step in your pipeline to run the disl command after building your Docker image to enforce size limits.

Question 2

Docker image size limit vs Hadolint: which tool is better for Docker best practices?

Accepted Answer

docker-image-size-limit focuses solely on size and layer enforcement, while Hadolint lints Dockerfiles for syntax and best practices. Use both: Hadolint for code quality and disl for size control in CI/CD.

Question 3

How to check multiple Docker images at once with this tool?

Accepted Answer

The tool checks one image per command. You'll need to loop through multiple images in a bash script or CI/CD step, running disl for each image to enforce limits across your project.

Question 4

Can I use docker-image-size-limit without Docker installed locally?

Accepted Answer

Yes, you can use the GitHub Action version in your workflows, which runs in the cloud without local Docker. Alternatively, the pre-built Docker image requires Docker but not local installation of the tool.

Question 5

How to set up different size limits for staging and production environments?

Accepted Answer

Configure the size limit as an environment variable in your CI/CD pipeline. Use conditional logic or separate pipeline jobs to pass different values for INPUT_SIZE based on the target environment.

Question 6

Is there a way to exclude certain layers from the --max-layers count?

Accepted Answer

No, the tool counts all layers in the image without exclusion options. You may need to refactor your Dockerfile to merge layers or use other tools for more granular control.

Monitor and limit your docker image size

What is Monitor and limit your docker image size?

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