podman-remote volume rm

add the ability to remove/delete volumes with the podman remote
client.

Signed-off-by: baude <bbaude@redhat.com>

7 files changed, 101 insertions, 19 deletions

diff --git a/cmd/podman/commands_remoteclient.go b/cmd/podman/commands_remoteclient.go
index e1f68405e..a656d5a29 100644
--- a/cmd/podman/commands_remoteclient.go
+++ b/cmd/podman/commands_remoteclient.go
@@ -35,6 +35,7 @@ func getPodSubCommands() []*cobra.Command {
 func getVolumeSubCommands() []*cobra.Command {
 	return []*cobra.Command{
 		_volumeCreateCommand,
+		_volumeRmCommand,
 	}
 }
 
diff --git a/cmd/podman/varlink/io.podman.varlink b/cmd/podman/varlink/io.podman.varlink
index 7263cfea3..b03fde0df 100644
--- a/cmd/podman/varlink/io.podman.varlink
+++ b/cmd/podman/varlink/io.podman.varlink
@@ -34,7 +34,11 @@ type VolumeCreateOpts (
    options: [string]string
 )
 
-
+type VolumeRemoveOpts (
+   volumes: []string,
+   all: bool,
+   force: bool
+)
 
 # ImageInList describes the structure that is returned in
 # ListImages.
@@ -1064,6 +1068,8 @@ method ReceiveFile(path: string, delete: bool) -> (len: int)
 
 method VolumeCreate(options: VolumeCreateOpts) -> (volumeName: string)
 
+method VolumeRemove(options: VolumeRemoveOpts) -> (volumeNames: []string)
+
 
 # ImageNotFound means the image could not be found by the provided name or ID in local storage.
 error ImageNotFound (name: string)
diff --git a/cmd/podman/volume_rm.go b/cmd/podman/volume_rm.go
index b02a06ed9..af05957e8 100644
--- a/cmd/podman/volume_rm.go
+++ b/cmd/podman/volume_rm.go
@@ -4,9 +4,8 @@ import (
 	"fmt"
 
 	"github.com/containers/libpod/cmd/podman/cliconfig"
-	"github.com/containers/libpod/cmd/podman/libpodruntime"
+	"github.com/containers/libpod/libpod/adapter"
 	"github.com/pkg/errors"
-	"github.com/sirupsen/logrus"
 	"github.com/spf13/cobra"
 )
 
@@ -43,25 +42,28 @@ func init() {
 func volumeRmCmd(c *cliconfig.VolumeRmValues) error {
 	var err error
 
-	runtime, err := libpodruntime.GetRuntime(&c.PodmanCommand)
+	if (len(c.InputArgs) > 0 && c.All) || (len(c.InputArgs) < 1 && !c.All) {
+		return errors.New("choose either one or more volumes or all")
+	}
+
+	runtime, err := adapter.GetRuntime(&c.PodmanCommand)
 	if err != nil {
 		return errors.Wrapf(err, "error creating libpod runtime")
 	}
 	defer runtime.Shutdown(false)
-
-	ctx := getContext()
-
-	vols, lastError := getVolumesFromContext(&c.PodmanCommand, runtime)
-	for _, vol := range vols {
-		err = runtime.RemoveVolume(ctx, vol, c.Force, false)
-		if err != nil {
-			if lastError != nil {
-				logrus.Errorf("%q", lastError)
-			}
-			lastError = errors.Wrapf(err, "failed to remove volume %q", vol.Name())
-		} else {
-			fmt.Println(vol.Name())
+	deletedVolumeNames, err := runtime.RemoveVolumes(getContext(), c)
+	if err != nil {
+		if len(deletedVolumeNames) > 0 {
+			printDeleteVolumes(deletedVolumeNames)
+			return err
 		}
 	}
-	return lastError
+	printDeleteVolumes(deletedVolumeNames)
+	return err
+}
+
+func printDeleteVolumes(volumes []string) {
+	for _, v := range volumes {
+		fmt.Println(v)
+	}
 }
diff --git a/libpod/adapter/runtime.go b/libpod/adapter/runtime.go
index 050ea6ed4..2b1ddb09d 100644
--- a/libpod/adapter/runtime.go
+++ b/libpod/adapter/runtime.go
@@ -185,3 +185,8 @@ func (r *LocalRuntime) CreateVolume(ctx context.Context, c *cliconfig.VolumeCrea
 	}
 	return newVolume.Name(), nil
 }
+
+// RemoveVolumes is a wrapper to remove volumes
+func (r *LocalRuntime) RemoveVolumes(ctx context.Context, c *cliconfig.VolumeRmValues) ([]string, error) {
+	return r.Runtime.RemoveVolumes(ctx, c.InputArgs, c.All, c.Force)
+}
diff --git a/libpod/adapter/runtime_remote.go b/libpod/adapter/runtime_remote.go
index 3df8afc6e..4dfae34e1 100644
--- a/libpod/adapter/runtime_remote.go
+++ b/libpod/adapter/runtime_remote.go
@@ -449,3 +449,13 @@ func (r *LocalRuntime) CreateVolume(ctx context.Context, c *cliconfig.VolumeCrea
 
 	return iopodman.VolumeCreate().Call(r.Conn, cvOpts)
 }
+
+// RemoveVolumes removes volumes over a varlink connection for the remote client
+func (r *LocalRuntime) RemoveVolumes(ctx context.Context, c *cliconfig.VolumeRmValues) ([]string, error) {
+	rmOpts := iopodman.VolumeRemoveOpts{
+		All:     c.All,
+		Force:   c.Force,
+		Volumes: c.InputArgs,
+	}
+	return iopodman.VolumeRemove().Call(r.Conn, rmOpts)
+}
diff --git a/libpod/runtime_volume.go b/libpod/runtime_volume.go
index 3921758ee..485f64bf1 100644
--- a/libpod/runtime_volume.go
+++ b/libpod/runtime_volume.go
@@ -2,6 +2,9 @@ package libpod
 
 import (
 	"context"
+	"github.com/pkg/errors"
+	"github.com/sirupsen/logrus"
+	"strings"
 )
 
 // Contains the public Runtime API for volumes
@@ -38,6 +41,38 @@ func (r *Runtime) RemoveVolume(ctx context.Context, v *Volume, force, prune bool
 	return r.removeVolume(ctx, v, force, prune)
 }
 
+// RemoveVolumes removes a slice of volumes or all with a force bool
+func (r *Runtime) RemoveVolumes(ctx context.Context, volumes []string, all, force bool) ([]string, error) {
+	var (
+		vols        []*Volume
+		err         error
+		deletedVols []string
+	)
+	if all {
+		vols, err = r.Volumes()
+		if err != nil {
+			return nil, errors.Wrapf(err, "unable to get all volumes")
+		}
+	} else {
+		for _, i := range volumes {
+			vol, err := r.GetVolume(i)
+			if err != nil {
+				return nil, err
+			}
+			vols = append(vols, vol)
+		}
+	}
+
+	for _, vol := range vols {
+		if err := r.RemoveVolume(ctx, vol, force, false); err != nil {
+			return deletedVols, err
+		}
+		logrus.Debugf("removed volume %s", vol.Name())
+		deletedVols = append(deletedVols, vol.Name())
+	}
+	return deletedVols, nil
+}
+
 // GetVolume retrieves a volume by its name
 func (r *Runtime) GetVolume(name string) (*Volume, error) {
 	r.lock.RLock()
@@ -47,7 +82,21 @@ func (r *Runtime) GetVolume(name string) (*Volume, error) {
 		return nil, ErrRuntimeStopped
 	}
 
-	return r.state.Volume(name)
+	vol, err := r.state.Volume(name)
+	if err == nil {
+		return vol, err
+	}
+
+	vols, err := r.GetAllVolumes()
+	if err != nil {
+		return nil, err
+	}
+	for _, v := range vols {
+		if strings.HasPrefix(v.Name(), name) {
+			return v, nil
+		}
+	}
+	return nil, errors.Errorf("unable to find volume %s", name)
 }
 
 // HasVolume checks to see if a volume with the given name exists
diff --git a/pkg/varlinkapi/volumes.go b/pkg/varlinkapi/volumes.go
index d1e4ae3c6..ced394e90 100644
--- a/pkg/varlinkapi/volumes.go
+++ b/pkg/varlinkapi/volumes.go
@@ -27,3 +27,12 @@ func (i *LibpodAPI) VolumeCreate(call iopodman.VarlinkCall, options iopodman.Vol
 	}
 	return call.ReplyVolumeCreate(newVolume.Name())
 }
+
+// VolumeRemove removes volumes by options.All or options.Volumes
+func (i *LibpodAPI) VolumeRemove(call iopodman.VarlinkCall, options iopodman.VolumeRemoveOpts) error {
+	deletedVolumes, err := i.Runtime.RemoveVolumes(getContext(), options.Volumes, options.All, options.Force)
+	if err != nil {
+		return call.ReplyErrorOccurred(err.Error())
+	}
+	return call.ReplyVolumeRemove(deletedVolumes)
+}