Can define volumes to collect artifacts

engine/docker/docker.go

@@ -6,6 +6,7 @@ import (
 
 	"github.com/docker/docker/api/types"
 	"github.com/docker/docker/api/types/container"
+	"github.com/docker/docker/api/types/mount"
 	"github.com/docker/docker/api/types/network"
 	"github.com/docker/docker/client"
 	oci "github.com/opencontainers/image-spec/specs-go/v1"
@@ -29,7 +30,7 @@ func Ps() ([]types.Container, error) {
 	return containers, nil
 }
 
-func Run(image string, cmd []string) (string, error) {
+func Run(image string, cmd []string, mounts []mount.Mount) (string, error) {
 	cli, err := newCli()
 	if err != nil {
 		return "", err
@@ -42,8 +43,13 @@ func Run(image string, cmd []string) (string, error) {
 			AttachStderr: true,
 			Image:        image,
 			Cmd:          cmd,
+			Volumes: map[string]struct{}{
+				"/data": {},
+			},
+		},
+		&container.HostConfig{
+			Mounts: mounts,
 		},
-		&container.HostConfig{},
 		&network.NetworkingConfig{},
 		&oci.Platform{
 			Architecture: "amd64",

engine/docker/volumes.go

@@ -0,0 +1,68 @@
+package docker
+
+import (
+	"context"
+	"io/ioutil"
+	"path/filepath"
+	"strings"
+
+	"github.com/docker/docker/api/types"
+	"github.com/docker/docker/api/types/mount"
+)
+
+func CreateVolumeDir(target string, readOnly bool) (*mount.Mount, error) {
+	abs, err := filepath.Abs("artifacts")
+	if err != nil {
+		return nil, err
+	}
+
+	dir, err := ioutil.TempDir(abs, "")
+	if err != nil {
+		return nil, err
+	}
+
+	return &mount.Mount{
+		Type:     mount.TypeBind,
+		Source:   dir,
+		Target:   target,
+		ReadOnly: readOnly,
+	}, nil
+}
+
+func GetArtifactsVolumes(id string) (ret []string, err error) {
+	abs, err := filepath.Abs("artifacts")
+	if err != nil {
+		return nil, err
+	}
+
+	mnt, err := GetVolumes(id)
+	if err != nil {
+		return nil, err
+	}
+
+	for _, m := range mnt {
+		if m.Type == mount.TypeBind && strings.HasPrefix(m.Source, abs) {
+			ret = append(ret, strings.TrimPrefix(m.Source, abs))
+		}
+	}
+
+	return
+}
+
+func GetVolumes(id string) (ret []types.MountPoint, err error) {
+	cli, err := newCli()
+	if err != nil {
+		return nil, err
+	}
+
+	ctr, err := cli.ContainerInspect(context.Background(), id)
+	if err != nil {
+		return nil, err
+	}
+
+	for _, mnt := range ctr.Mounts {
+		ret = append(ret, mnt)
+	}
+
+	return
+}