sjansen/mecha

package main

import (
    "context"
    "fmt"

    "github.com/docker/docker/api/types"
    "github.com/docker/docker/client"
)

func main() {
    cli, err := client.NewClientWithOpts(client.FromEnv)
    if err != nil {
        panic(err)
    }

    containers, err := cli.ContainerList(context.Background(), types.ContainerListOptions{})
    if err != nil {
        panic(err)
    }

    for _, container := range containers {
        fmt.Printf("%s %s\n", container.ID[:10], container.Image)
    }

    if len(containers) < 1 {
        fmt.Println("no running containers")
    }
}