docker

How to show created since with custom output format on docker ps?

I configure psFormat on ~/.docker/config.json like this:

{
  "psFormat": "table {{.ID}}\\t{{.Image}}\\t{{.CreatedAt}}\\t{{.Status}}\\t{{.Ports}}\\t{{.Names}}"
}

The problem is CreatedAt column show exact date instead of how long the container was created:

CREATED AT
2023-05-21 04:26:47 +0700 +07

But what I want is:

CREATED
About a minute ago

The documentation does not tell how to display in this format.

Solution

  • I made the same mistake,

    instead of using the column Created, you're looking for RunningFor, here's an example using --format, but it'll work too in config.json:

    docker ps --format "table {{.Names}}\t{{.RunningFor}}\t{{.Status}}\t{{.Image}}\t{{.Ports}}"

    See the documentation (which does not give great details about the format, I know you read it, but it lists alternative columns you can try): https://docs.docker.com/engine/reference/commandline/ps/#format

    Valid placeholders for the Go template are listed below:

    • Placeholder Description
    • .CreatedAt Time when the container was created.
    • .RunningFor Elapsed time since the container was started.