![]() ![]() Path where the image should be stored after squashing. tmp-dir TMP_DIR Temporary directory to be created and used c, -cleanup Remove source image from Docker after squashing t TAG, -tag TAG Specify the tag to be used for the new image. If not specified will squash all layers in the image ID of the layer or image ID or image name. d, -development Does not clean up after failure for easier debugging h, -help show this help message and exit An alternative option is to use the docker save command to get a good approximation of the compressed size.Squash Docker image to remove unnecessary layers in case you do not have a need to keep them. ![]() ![]() If you are building Docker images and want to get an ideal of what the compressed size, you could push it to a registry and then utilize the technique describe in the previous Docker Registry Image section to retrieve the compressed size, but that can be wasteful and/or undesirable. In this example, the compressed size of the /dotnet/core/samples:dotnetapp-buster-slim image is 76,411,911 bytes (74.6 MB). > docker manifest inspect /dotnet/core/samples:dotnetapp-buster-slim īy adding up the config and layer sizes you will get the total compressed size of the image. See experimental docker features for more information. At the time this article was written, the docker manifest command is in experimental and must be enabled. To do this you can utilize the docker manifest command. If the image resides in a registry, you can retrieve the size of the image without pulling it locally. Measuring the compressed size of a Docker image depends on where the image resides - in a Docker registry or locally. The example commands shown below will work on Windows, MacOS, and Linux. This affects how much local storage is required to support your Docker workloads. Uncompressed size - This is often referred to as the size on disk.This impacts the first run experience on machines where images are not cached. This affects how fast/slow images can be pulled from a registry. Compressed size - This is often referred to as the wire size.There are two metrics that are important to consider when discussing the size of Docker images. ![]()
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