dotcloud/docker

package daemon

import (
    "context"
    "testing"

    "github.com/docker/docker/api/types/container"
    "gotest.tools/v3/assert"
)

// ActiveContainers returns the list of ids of the currently running containers
func (d *Daemon) ActiveContainers(ctx context.Context, t testing.TB) []string {
    t.Helper()
    cli := d.NewClientT(t)
    defer cli.Close()

    containers, err := cli.ContainerList(context.Background(), container.ListOptions{})
    assert.NilError(t, err)

    ids := make([]string, len(containers))
    for i, c := range containers {
        ids[i] = c.ID
    }
    return ids
}

// FindContainerIP returns the ip of the specified container
func (d *Daemon) FindContainerIP(t testing.TB, id string) string {
    t.Helper()
    cli := d.NewClientT(t)
    defer cli.Close()

    i, err := cli.ContainerInspect(context.Background(), id)
    assert.NilError(t, err)
    return i.NetworkSettings.IPAddress
}