I'm new to Docker, so please allow me to describe the steps that I did. I'm using Docker (not Docker toolbox) on OS X. I built the image from Dockerfile using the following commandsudo docker build -t myImage .
Docker confirmed that building was successful.
Successfully built 7240e.....
However, I can't find the image anywhere. I looked at this question , but the answer is for Docker toolbox, and I don't have a folder /Users/<username>/.docker
as suggested by the accepted answer.
You would be able to see your docker images by the below command:
docker images
And to check which all containers are running in docker:
docker ps -a
To get list of Images
docker image ls
or
docker images
Command to list the docker images is :
docker images
The default docker images will show all top level images, their repository and tags, and their size. An image will be listed more than once if it has multiple repository names or tags.
In addition to the correct responses above that discuss how to access your container or container image, if you want to know how the image is written to disk...
Docker uses a Copy on Write File System ( https://en.wikipedia.org/wiki/Copy-on-write ) and stores each Docker image as a series of read only layers and stores them in a list. The link below does a good job explaining how the image layers are actually stored on disk.
As already said, after the docker images
this command will show you all the images you have locally.
ie "somth like that"
REPOSITORY TAG IMAGE ID CREATED SIZE
codestandars 1.0 a22daacf6761 8 minutes ago 622MB
bulletinboard 1.0 b73e8e68edc0 2 hours ago 681MB
ubuntu 18.04 cf0f3ca922e0 4 days ago 64.2MB
now you should
docker run -it
and the IMAGE ID or the TAG related to the repository you want to run.
Local builds (in my case using buildkit) will create and cache the image layers but simply leave them in the cache rather than tell the docker daemon they're an actual image. To do that you need to use the --load
flag.
$ docker buildx build -t myImage .
$ docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
Doesn't show anything, but...
$ docker buildx build -t myImage --load .
$ docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
myImage latest 538021e3d342 18 minutes ago 190MB
And there it is!
There actually is a warning about this in the output of the build command... but it's above all the build step logs so vanishes off your terminal without easily being seen.
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