# 3 tips for rebuilding a Docker image faster (and save CI seconds!)

DevFeed: [3 tips for rebuilding a Docker image faster (and save CI seconds!)](<https://devfeed.tech/articles/3-tips-for-rebuilding-a-docker-image-faster-and-save-ci-seconds-7768.md>)

Original publisher: [Read original article](<https://snyk.io/blog/3-tips-rebuild-docker-image-fast/>)

Author: Liran Tal

Published: 2023-12-28T05:00:00Z

Content type: tutorial

Language: en

Sources: [Blog RSS Feed | Snyk](<https://devfeed.tech/sources/blog-rss-feed-snyk.md>)

Topics: [Docker](<https://devfeed.tech/topics/docker.md>), [Docker Image](<https://devfeed.tech/topics/docker-image.md>), [Dockerfile](<https://devfeed.tech/topics/dockerfile.md>), [Containers](<https://devfeed.tech/topics/containers.md>), [CI/CD](<https://devfeed.tech/topics/cicd.md>)

Tags: [ai](<https://devfeed.tech/tags/ai.md>), [blog](<https://devfeed.tech/tags/blog.md>), [ci](<https://devfeed.tech/tags/ci.md>), [ci-cd](<https://devfeed.tech/tags/ci-cd.md>), [containers](<https://devfeed.tech/tags/containers.md>), [dependency](<https://devfeed.tech/tags/dependency.md>), [deployment](<https://devfeed.tech/tags/deployment.md>), [devops](<https://devfeed.tech/tags/devops.md>), [docker](<https://devfeed.tech/tags/docker.md>), [docker-image](<https://devfeed.tech/tags/docker-image.md>), [engineering](<https://devfeed.tech/tags/engineering.md>), [image](<https://devfeed.tech/tags/image.md>), [python](<https://devfeed.tech/tags/python.md>)

## AI overview

This tutorial presents three ways to rebuild Docker images faster and reduce CI time: add a .dockerignore file, use a dependency lockfile, and group commands.

## Source excerpt

Learn about three great ways to rebuild a Docker image faster: Add a .dockerignore file to your repository, use a dependency lockfile, and group commands!