Docker For Mac Delete Containers10/24/2021
Sudo docker images sudo docker rmi. An example of deleting an image is shown below. To delete an image pass the ID returned by docker images to docker rmi command.
![]() Docker Delete Containers How To Do ThisI started up a few Docker containers on my machine: ~ docker container ls -aCONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMESB805f67ec113 nginx:1.15.1-alpine "nginx -g 'daemon of…" 13 seconds ago Up 11 seconds 0.0.0.0:8080->80/tcp hardcore_archimedes8cfa08b910f6 nginx:1.15.1-alpine "-d" 38 seconds ago Created 0.0.0.0:8080->80/tcp romantic_elbakyan3edccda81c16 takacsmark/takacsmark-dot-com:devtools-10.8.0-stretch "/bin/bash" 19 hours ago Exited (0) 18 hours ago takacsmarkgithubio_gulp_run_1Df2c60b675f1 jekyll/jekyll:3.8.3 "/usr/jekyll/bin/ent…" 19 hours ago Up 19 hours 0.0.0.0:4000->4000/tcp, 0.0.0.0:35729->35729/tcp takacsmark-dot-com Your workflow and benefits are similar to Docker Compose.After a while we all have something to clean up, so let’s see how to do this. Using Swarm mode’s docker service create or docker stack deploy to create containers and docker service rm or docker stack rm will remove containers automatically. Using Docker Compose will leave less garbage on the system. This is good practice because the logs will be available all along and cleanup is built into the workflow. Starting your containers with docker-compose up and stopping them with docker-compose down when you finished your activities, will remove all containers and networks involved with the application automatically.This container was created with docker compose run and it is in the “Exited” state now. I use this image to run gulp tasks when I build my blog. I have a container based on a custom Docker image called takacsmark/takacsmark-dot-com:devtools-10.8.0-stretch. The created state means that the container was created but it’s not running. As you can see in the output, Docker has removed 2 containers and the amount of total reclaimed space is also displayed.This is the list of containers now: ~ docker container ls -aB805f67ec113 nginx:1.15.1-alpine "nginx -g 'daemon of…" About an hour ago Up About an hour 0.0.0.0:8080->80/tcp hardcore_archimedesDf2c60b675f1 jekyll/jekyll:3.8.3 "/usr/jekyll/bin/ent…" 20 hours ago Up 20 hours 0.0.0.0:4000->4000/tcp, 0.0.0.0:35729->35729/tcp takacsmark-dot-comAs you can see the containers in “Exited” or “Created” state were removed from my system.You can use docker container prune in a bit more sophisticated way with filters. It has removed two Docker containers from my machine. The command will remove all stopped containers.Let’s see how it works: ~ docker container pruneWARNING! This will remove all stopped containers.Are you sure you want to continue? yA3586090a7ac9647a6170e0e4ea5ac495918373b245af1dab6e88ec5e202c9288cfa08b910f6cc61001426f4ce00de50a030b62bcb34975999dd19e23c918820This command will ask for confirmation (that you can suppress with the -f flag). Docker will focus on the containers only, it won’t matter which way you started them. This container was started with Docker Compose.We can clean up the containers with the docker container prune command. Rick ross feat styles p bmf mp3 downloadIn this case Docker will move the tag to the latest image resulting from the build and all previous images created by that build will have no tag.Takacsmark/flask-redis 1.0 027a4f101492 2 seconds ago 88.2MBTakacsmark/flask-redis 7c94cfc2fcd5 5 days ago 88.2MBThese images are the result of the same build process, but they have been built at different times and they incorporate project changes, so they are different. They are created when you build a Docker image with the same tag again and again. Clean up all Docker images that have no running containers associated with them.Dangling images are the images that are not tagged on your system. - This is the default behavior. Clean up dangling images. Cleaning Docker imagesYyou can use docker image prune to cleaning up Docker images in two modes: ![]() It’s a good practice to check and clean your volumes regularly.Cleaning Docker volumes is critical during development. This means that if you start up a container from these images, Docker will create a volume with a random name and put the data under the specific directory into that volume.You may accumulate quite many Docker volumes on your system over time. The official Postgres Dockerfile defines an image that points to /var/lib/postgresql/data. In this case such volumes get a random name.The official Mariadb image defines a volume in the Dockerfile that points to /var/lib/mysql, for example. These volumes will be created, even if you do not specify any volume information when you start up your containers. Many official images define Docker volumes to store data externally. Therefore it is essential to set up REPEATABLE data initiation and migration tools for your projects, don’t just store critical data in your Docker volumes. This may get dangerous, because you may loose some prepared data. You should build volume pruning into your workflow.The docker volume prune command will remove all volumes that are not used by at least one container.
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