# Docker security

Published articles for Docker security.

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## Automatic updates of Docker images with Renovate Bot

DevFeed: [Automatic updates of Docker images with Renovate Bot](<https://devfeed.tech/articles/automatic-updates-of-docker-images-with-renovate-bot-27699.md>)

Original publisher: [Read original article](<https://gagor.pro/2024/03/automatic-updates-of-docker-images-with-renovate-bot/>)

Author: Tom

Published: 2024-03-01T00:00:00Z

Content type: tutorial

Language: en

Sources: [Tomasz Gągor](<https://devfeed.tech/sources/tomasz-gagor.md>)

Topics: [Docker](<https://devfeed.tech/topics/docker.md>), [Dockerfile](<https://devfeed.tech/topics/dockerfile.md>), [renovate](<https://devfeed.tech/topics/renovate.md>), [configuration](<https://devfeed.tech/topics/configuration.md>)

Tags: [automate-docker-updates](<https://devfeed.tech/tags/automate-docker-updates.md>), [bash](<https://devfeed.tech/tags/bash.md>), [best-practices](<https://devfeed.tech/tags/best-practices.md>), [dependencies](<https://devfeed.tech/tags/dependencies.md>), [dependency](<https://devfeed.tech/tags/dependency.md>), [developers](<https://devfeed.tech/tags/developers.md>), [devops](<https://devfeed.tech/tags/devops.md>), [devops-best-practices](<https://devfeed.tech/tags/devops-best-practices.md>), [docker](<https://devfeed.tech/tags/docker.md>), [docker-image-updates](<https://devfeed.tech/tags/docker-image-updates.md>), [docker-security](<https://devfeed.tech/tags/docker-security.md>), [dockerfiles](<https://devfeed.tech/tags/dockerfiles.md>), [how-to](<https://devfeed.tech/tags/how-to.md>), [linux](<https://devfeed.tech/tags/linux.md>), [renovate](<https://devfeed.tech/tags/renovate.md>), [renovate-bot](<https://devfeed.tech/tags/renovate-bot.md>), [renovate-vs-dependabot](<https://devfeed.tech/tags/renovate-vs-dependabot.md>), [security](<https://devfeed.tech/tags/security.md>), [updates](<https://devfeed.tech/tags/updates.md>)

### AI overview

A practical guide to automating Docker image and dependency updates with Renovate Bot. It explains how Renovate detects parent image changes, tracks binaries downloaded from sources such as GitHub or Maven, and uses custom comments and configuration to identify dependencies and propose or automatically merge updates.

### Source excerpt

Learn how to automate Docker image updates using Renovate Bot, a versatile tool that supports various package managers and custom dependency links.

## How old are Official Docker images?

DevFeed: [How old are Official Docker images?](<https://devfeed.tech/articles/how-old-are-official-docker-images-27660.md>)

Original publisher: [Read original article](<https://gagor.pro/2021/01/how-old-are-official-docker-images/>)

Author: Tom

Published: 2021-01-28T00:00:00Z

Content type: article

Language: en

Sources: [Tomasz Gągor](<https://devfeed.tech/sources/tomasz-gagor.md>)

Topics: [docker images](<https://devfeed.tech/topics/docker-images.md>), [Docker](<https://devfeed.tech/topics/docker.md>), [Dockerfile](<https://devfeed.tech/topics/dockerfile.md>), [Security](<https://devfeed.tech/topics/security.md>), [DevOps](<https://devfeed.tech/topics/devops.md>)

Tags: [base-image-maintenance](<https://devfeed.tech/tags/base-image-maintenance.md>), [base-images](<https://devfeed.tech/tags/base-images.md>), [devops](<https://devfeed.tech/tags/devops.md>), [docker](<https://devfeed.tech/tags/docker.md>), [docker-image-age](<https://devfeed.tech/tags/docker-image-age.md>), [docker-image-updates](<https://devfeed.tech/tags/docker-image-updates.md>), [docker-performance](<https://devfeed.tech/tags/docker-performance.md>), [docker-security](<https://devfeed.tech/tags/docker-security.md>), [images](<https://devfeed.tech/tags/images.md>), [official-docker-images](<https://devfeed.tech/tags/official-docker-images.md>), [security](<https://devfeed.tech/tags/security.md>)

### AI overview

The article examines how old various official Docker images are and how frequently they are updated. It highlights the security risks of using stale CentOS base images and discusses the tradeoff that package upgrades can make images larger.

### Source excerpt

Discover the age and update frequency of various official Docker images, and learn why it's important to keep your base images up to date for security and performance.