Add pod, volume, network to inspect package

podman inspect only had the capabilities to inspect containers and images. if a user wanted to inspect a pod, volume, or network, they would have to use `podman network inspect`, `podman pod inspect` etc. Docker's cli allowed users to inspect both volumes and networks using regular inspect, so this commit gives the user the functionality

If the inspect type is not specified using --type, the order of inspection is:

containers
images
volumes
networks
pods

meaning if container that has the same name as an image, podman inspect would return the container inspect.

To avoid duplicate code, podman network inspect and podman volume inspect now use the inspect package as well. Podman pod inspect does not because podman pod inspect returns a single json object while podman inspect can return multiple)

Signed-off-by: Ashley Cui <acui@redhat.com>

4 files changed, 56 insertions, 20 deletions

diff --git a/pkg/domain/infra/abi/network.go b/pkg/domain/infra/abi/network.go
index f40df828a..4f572fb88 100644
--- a/pkg/domain/infra/abi/network.go
+++ b/pkg/domain/infra/abi/network.go
@@ -43,21 +43,26 @@ func (ic *ContainerEngine) NetworkList(ctx context.Context, options entities.Net
 	return reports, nil
 }
 
-func (ic *ContainerEngine) NetworkInspect(ctx context.Context, namesOrIds []string, options entities.NetworkInspectOptions) ([]entities.NetworkInspectReport, error) {
+func (ic *ContainerEngine) NetworkInspect(ctx context.Context, namesOrIds []string, options entities.InspectOptions) ([]entities.NetworkInspectReport, []error, error) {
 	config, err := ic.Libpod.GetConfig()
 	if err != nil {
-		return nil, err
+		return nil, nil, err
 	}
-
+	var errs []error
 	rawCNINetworks := make([]entities.NetworkInspectReport, 0, len(namesOrIds))
 	for _, name := range namesOrIds {
 		rawList, err := network.InspectNetwork(config, name)
 		if err != nil {
-			return nil, err
+			if errors.Cause(err) == define.ErrNoSuchNetwork {
+				errs = append(errs, errors.Errorf("no such network %s", name))
+				continue
+			} else {
+				return nil, nil, errors.Wrapf(err, "error inspecting network %s", name)
+			}
 		}
 		rawCNINetworks = append(rawCNINetworks, rawList)
 	}
-	return rawCNINetworks, nil
+	return rawCNINetworks, errs, nil
 }
 
 func (ic *ContainerEngine) NetworkRm(ctx context.Context, namesOrIds []string, options entities.NetworkRmOptions) ([]*entities.NetworkRmReport, error) {
diff --git a/pkg/domain/infra/abi/volumes.go b/pkg/domain/infra/abi/volumes.go
index 946f258af..a7262f61b 100644
--- a/pkg/domain/infra/abi/volumes.go
+++ b/pkg/domain/infra/abi/volumes.go
@@ -4,6 +4,7 @@ import (
 	"context"
 
 	"github.com/containers/podman/v2/libpod"
+	"github.com/containers/podman/v2/libpod/define"
 	"github.com/containers/podman/v2/pkg/domain/entities"
 	"github.com/containers/podman/v2/pkg/domain/filters"
 	"github.com/containers/podman/v2/pkg/domain/infra/abi/parse"
@@ -71,9 +72,10 @@ func (ic *ContainerEngine) VolumeRm(ctx context.Context, namesOrIds []string, op
 	return reports, nil
 }
 
-func (ic *ContainerEngine) VolumeInspect(ctx context.Context, namesOrIds []string, opts entities.VolumeInspectOptions) ([]*entities.VolumeInspectReport, error) {
+func (ic *ContainerEngine) VolumeInspect(ctx context.Context, namesOrIds []string, opts entities.InspectOptions) ([]*entities.VolumeInspectReport, []error, error) {
 	var (
 		err  error
+		errs []error
 		vols []*libpod.Volume
 	)
 
@@ -82,13 +84,18 @@ func (ic *ContainerEngine) VolumeInspect(ctx context.Context, namesOrIds []strin
 	if opts.All {
 		vols, err = ic.Libpod.GetAllVolumes()
 		if err != nil {
-			return nil, err
+			return nil, nil, err
 		}
 	} else {
 		for _, v := range namesOrIds {
 			vol, err := ic.Libpod.LookupVolume(v)
 			if err != nil {
-				return nil, errors.Wrapf(err, "error inspecting volume %s", v)
+				if errors.Cause(err) == define.ErrNoSuchVolume {
+					errs = append(errs, errors.Errorf("no such volume %s", v))
+					continue
+				} else {
+					return nil, nil, errors.Wrapf(err, "error inspecting volume %s", v)
+				}
 			}
 			vols = append(vols, vol)
 		}
@@ -98,11 +105,11 @@ func (ic *ContainerEngine) VolumeInspect(ctx context.Context, namesOrIds []strin
 		var uid, gid int
 		uid, err = v.UID()
 		if err != nil {
-			return nil, err
+			return nil, nil, err
 		}
 		gid, err = v.GID()
 		if err != nil {
-			return nil, err
+			return nil, nil, err
 		}
 		config := entities.VolumeConfigResponse{
 			Name:       v.Name(),
@@ -117,7 +124,7 @@ func (ic *ContainerEngine) VolumeInspect(ctx context.Context, namesOrIds []strin
 		}
 		reports = append(reports, &entities.VolumeInspectReport{VolumeConfigResponse: &config})
 	}
-	return reports, nil
+	return reports, errs, nil
 }
 
 func (ic *ContainerEngine) VolumePrune(ctx context.Context) ([]*entities.VolumePruneReport, error) {
diff --git a/pkg/domain/infra/tunnel/network.go b/pkg/domain/infra/tunnel/network.go
index d155fdd9e..15527e02c 100644
--- a/pkg/domain/infra/tunnel/network.go
+++ b/pkg/domain/infra/tunnel/network.go
@@ -5,22 +5,34 @@ import (
 
 	"github.com/containers/podman/v2/pkg/bindings/network"
 	"github.com/containers/podman/v2/pkg/domain/entities"
+	"github.com/pkg/errors"
 )
 
 func (ic *ContainerEngine) NetworkList(ctx context.Context, options entities.NetworkListOptions) ([]*entities.NetworkListReport, error) {
 	return network.List(ic.ClientCxt, options)
 }
 
-func (ic *ContainerEngine) NetworkInspect(ctx context.Context, namesOrIds []string, options entities.NetworkInspectOptions) ([]entities.NetworkInspectReport, error) {
-	reports := make([]entities.NetworkInspectReport, 0, len(namesOrIds))
+func (ic *ContainerEngine) NetworkInspect(ctx context.Context, namesOrIds []string, options entities.InspectOptions) ([]entities.NetworkInspectReport, []error, error) {
+	var (
+		reports = make([]entities.NetworkInspectReport, 0, len(namesOrIds))
+		errs    = []error{}
+	)
 	for _, name := range namesOrIds {
 		report, err := network.Inspect(ic.ClientCxt, name)
 		if err != nil {
-			return nil, err
+			errModel, ok := err.(entities.ErrorModel)
+			if !ok {
+				return nil, nil, err
+			}
+			if errModel.ResponseCode == 404 {
+				errs = append(errs, errors.Errorf("no such network %q", name))
+				continue
+			}
+			return nil, nil, err
 		}
 		reports = append(reports, report...)
 	}
-	return reports, nil
+	return reports, errs, nil
 }
 
 func (ic *ContainerEngine) NetworkRm(ctx context.Context, namesOrIds []string, options entities.NetworkRmOptions) ([]*entities.NetworkRmReport, error) {
diff --git a/pkg/domain/infra/tunnel/volumes.go b/pkg/domain/infra/tunnel/volumes.go
index e432d3292..c0df2bb7b 100644
--- a/pkg/domain/infra/tunnel/volumes.go
+++ b/pkg/domain/infra/tunnel/volumes.go
@@ -5,6 +5,7 @@ import (
 
 	"github.com/containers/podman/v2/pkg/bindings/volumes"
 	"github.com/containers/podman/v2/pkg/domain/entities"
+	"github.com/pkg/errors"
 )
 
 func (ic *ContainerEngine) VolumeCreate(ctx context.Context, opts entities.VolumeCreateOptions) (*entities.IDOrNameResponse, error) {
@@ -35,25 +36,36 @@ func (ic *ContainerEngine) VolumeRm(ctx context.Context, namesOrIds []string, op
 	return reports, nil
 }
 
-func (ic *ContainerEngine) VolumeInspect(ctx context.Context, namesOrIds []string, opts entities.VolumeInspectOptions) ([]*entities.VolumeInspectReport, error) {
+func (ic *ContainerEngine) VolumeInspect(ctx context.Context, namesOrIds []string, opts entities.InspectOptions) ([]*entities.VolumeInspectReport, []error, error) {
+	var (
+		reports = make([]*entities.VolumeInspectReport, 0, len(namesOrIds))
+		errs    = []error{}
+	)
 	if opts.All {
 		vols, err := volumes.List(ic.ClientCxt, nil)
 		if err != nil {
-			return nil, err
+			return nil, nil, err
 		}
 		for _, v := range vols {
 			namesOrIds = append(namesOrIds, v.Name)
 		}
 	}
-	reports := make([]*entities.VolumeInspectReport, 0, len(namesOrIds))
 	for _, id := range namesOrIds {
 		data, err := volumes.Inspect(ic.ClientCxt, id)
 		if err != nil {
-			return nil, err
+			errModel, ok := err.(entities.ErrorModel)
+			if !ok {
+				return nil, nil, err
+			}
+			if errModel.ResponseCode == 404 {
+				errs = append(errs, errors.Errorf("no such volume %q", id))
+				continue
+			}
+			return nil, nil, err
 		}
 		reports = append(reports, &entities.VolumeInspectReport{VolumeConfigResponse: data})
 	}
-	return reports, nil
+	return reports, errs, nil
 }
 
 func (ic *ContainerEngine) VolumePrune(ctx context.Context) ([]*entities.VolumePruneReport, error) {