[Request]: Calculate/Include Full Size in JSON Output of images. #860
Description
Feature or enhancement request details
Right now I'm not sure it should be a bug or request.
Currently, in json format we have descriptor details and there is no full image size in json format while in table format we have calculated full image size in size field.
- List images with verbose flag
container image ls -voutput:
- List images with json format
container image ls --format jsonoutput:
[
{
"reference": "docker.io/library/alpine:latest",
"descriptor": {
"digest": "sha256:4b7ce07002c69e8f3d704a9c5d6fd3053be500b7f1c69fc0d80990c2ad8dd412",
"mediaType": "application/vnd.oci.image.index.v1+json",
"size": 9218
}
},
{
"reference": "docker.io/library/postgres:latest",
"descriptor": {
"digest": "sha256:41fc5342eefba6cc2ccda736aaf034bbbb7c3df0fdb81516eba1ba33f360162c",
"mediaType": "application/vnd.oci.image.index.v1+json",
"size": 10229
}
},
{
"reference": "ghcr.io/apple/containerization/vminit:0.8.1",
"descriptor": {
"mediaType": "application/vnd.oci.image.index.v1+json",
"size": 306,
"digest": "sha256:666991717c0d26a211b400b09ad45ac84a9f64af8a08c2c64a54884e76d98954"
}
},
{
"reference": "ghcr.io/apple/containerization/vminit:0.9.1",
"descriptor": {
"size": 306,
"mediaType": "application/vnd.oci.image.index.v1+json",
"digest": "sha256:6839bd6e230281df328571bd15929f8115303cba19737f3d888cc77a113e482d"
}
}
]In json format, we get size from the descriptor instead of sum of sizes from descriptor , layers and manifest config.
Code reference for how size of image is calculated in table format: https://github.com/apple/container/blob/main/Sources/ContainerCommands/Image/ImageList.swift#L83-L84
Expected:
In json format of images we should have full image size:
{
"reference": "ghcr.io/apple/containerization/vminit:0.9.1",
"size": "172.5 MB"
"descriptor": {
"size": 306,
"mediaType": "application/vnd.oci.image.index.v1+json",
"digest": "sha256:6839bd6e230281df328571bd15929f8115303cba19737f3d888cc77a113e482d"
},
}Docker cli do provide same size for image in table and json format.
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