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46 lines
2.0 KiB
Plaintext
46 lines
2.0 KiB
Plaintext
import Image from 'next/image'
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import {ArticleLayout} from '@/components/layouts/ArticleLayout'
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import {createSlug} from '@/lib/createSlug'
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import cargoShipImage from './ian-taylor-jOqJbvo1P9g-unsplash.jpg'
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export const meta = {
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author: 'Ryan Freeman',
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date: '2023-02-11',
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title: 'Docker cheat sheet',
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description: 'This is a living document of useful commands for maintaining and using Docker, and should function as a handy reference for developers and DevOps engineers.',
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ogImage: '/static/images/ian-taylor-jOqJbvo1P9g-unsplash.jpg'
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}
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export default (props) => <ArticleLayout
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author={meta.author}
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date={meta.date}
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title={meta.title}
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description={meta.description}
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ogImage={meta.ogImage}
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slug={createSlug(meta.title)}
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{...props} />
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This is a living document of useful commands for maintaining and using Docker, and should function as a handy reference for developers and DevOps engineers.
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<Image
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src={cargoShipImage}
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alt="Image of a cargo ship by Ian Taylor on Unsplash"
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placeholder="blur"
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priority
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/>
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I'll kick off this Docker cheat sheet with cleaning up Docker images, let's get started.
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## Cleaning up Docker images
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If you update your Docker container images regularly using something like [watchtower](https://containrrr.dev/watchtower/), you might have dangling images which are out-of-date and no longer associated with some of your running containers.
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So why not use `docker image prune` to reclaim that valuable disk space. For example, running this command on my Raspberry Pi shaved off about 9.66Gb of disk usage.
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As a bonus, you can save some additional space using `docker image prune --all`, which removes all unused Docker images.
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## Restarting all containers
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Sometimes you want to restart all your containers at once, such as after you've pulled the latest images for your containers.
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To do this, use `docker restart $(docker ps -q)`, this command instructs Docker to restart all containers using the container ids which are returned from `docker ps -q`. |