CLI Machines Docker Images

`ed machines docker images`

Lists the images on the machine with their size.

ed machines docker images [--json] <machine>

Arguments

Name	Type / values	Default	What it does
`<machine>`	machine name, ssh alias, id, or any unambiguous prefix	required	Which machine to ask.

Options

Name	Type / values	Default	What it does
`--json`	flag	off	Emit JSON on stdout instead of the table.
`--help`, `-h`	flag	off	Print the help for this command on stdout and exit 0.

$ ed machines tuf docker images
ID            IMAGE                                                SIZE
e97bf9531916  ghcr.io/open-webui/open-webui:main                   5.1 GB
de3a4eab8fdf  postgres:16-alpine                                   294 MB
93aa428db0ae  postgres:17-alpine                                   297 MB
7ef7a41df1e0  lobehub/lobe-chat:latest                             617 MB
9eafe528d67a  redis/redis-stack:latest                             895 MB
af182398db7c  docker.elastic.co/kibana/kibana:9.0.0                1.2 GB
6cec5391a4c7  docker.elastic.co/elasticsearch/elasticsearch:9.0.0  1.4 GB

`--json` shape

A top-level array, one object per image:

[
  {
    "createdSince": "12 days ago",
    "dangling": false,
    "id": "sha256:e97bf95319168ab7fdfc5bd1e869f6a1cf6349bdf6d3e8fe16c733d2ca473491",
    "repository": "ghcr.io/open-webui/open-webui",
    "shortID": "e97bf9531916",
    "sizeBytes": 5090000000,
    "tag": "main"
  },
  {
    "createdSince": "4 weeks ago",
    "dangling": false,
    "id": "sha256:de3a4eab8fdfa507ea92aac488b916b08089e515db49b055fe71dfa271ba3a28",
    "repository": "postgres",
    "shortID": "de3a4eab8fdf",
    "sizeBytes": 294000000,
    "tag": "16-alpine"
  }
]

id keeps docker's sha256: prefix; shortID strips it and keeps twelve characters, which is what the table shows and what rmi takes.
dangling is true when either repository or tag is <none>, and the table prints such a row as <none>:<none>.
sizeBytes is docker's human size parsed back into bytes. Docker prints decimal units, so 5.09GB becomes 5090000000 rather than a byte-exact figure, and the table then re-renders it as 5.1 GB.
createdSince is docker's relative phrase, not a date.

Examples

ed machines tuf docker images
ed machines tuf docker images --json | jq -r '.[] | select(.dangling) | .shortID'
ed machines tuf docker images --json | jq 'map(.sizeBytes) | add'

Behaviour notes

Read only, 45 second ceiling. The remote command is docker images --no-trunc --format '{{json .}}', with no -a, so intermediate build layers are not listed. Dangling images are, and prune images takes them along with every other image no container uses.