4 files changed, 81 insertions, 0 deletions
diff --git a/pkg/domain/entities/engine.go b/pkg/domain/entities/engine.go
index f45218d14..265c9f36f 100644
--- a/pkg/domain/entities/engine.go
+++ b/pkg/domain/entities/engine.go
@@ -12,9 +12,18 @@ import (
 // EngineMode is the connection type podman is using to access libpod
 type EngineMode string
 
+// EngineSetup calls out whether a "normal" or specialized engine should be created
+type EngineSetup string
+
 const (
 	ABIMode    = EngineMode("abi")
 	TunnelMode = EngineMode("tunnel")
+
+	MigrateMode  = EngineSetup("migrate")
+	NoFDsMode    = EngineSetup("disablefds")
+	NormalMode   = EngineSetup("normal")
+	RenumberMode = EngineSetup("renumber")
+	ResetMode    = EngineSetup("reset")
 )
 
 // Convert EngineMode to String
diff --git a/pkg/domain/entities/engine_container.go b/pkg/domain/entities/engine_container.go
index 734f72e5f..98e4d841f 100644
--- a/pkg/domain/entities/engine_container.go
+++ b/pkg/domain/entities/engine_container.go
@@ -65,6 +65,7 @@ type ContainerEngine interface {
 	PodUnpause(ctx context.Context, namesOrIds []string, options PodunpauseOptions) ([]*PodUnpauseReport, error)
 	SetupRootless(ctx context.Context, cmd *cobra.Command) error
 	Shutdown(ctx context.Context)
+	SystemDf(ctx context.Context, options SystemDfOptions) (*SystemDfReport, error)
 	VarlinkService(ctx context.Context, opts ServiceOptions) error
 	VolumeCreate(ctx context.Context, opts VolumeCreateOptions) (*IdOrNameResponse, error)
 	VolumeInspect(ctx context.Context, namesOrIds []string, opts VolumeInspectOptions) ([]*VolumeInspectReport, error)
diff --git a/pkg/domain/entities/engine_system.go b/pkg/domain/entities/engine_system.go
new file mode 100644
index 000000000..e2000f5cb
--- /dev/null
+++ b/pkg/domain/entities/engine_system.go
@@ -0,0 +1,14 @@
+package entities
+
+import (
+	"context"
+
+	"github.com/spf13/pflag"
+)
+
+type SystemEngine interface {
+	Renumber(ctx context.Context, flags *pflag.FlagSet, config *PodmanConfig) error
+	Migrate(ctx context.Context, flags *pflag.FlagSet, config *PodmanConfig, options SystemMigrateOptions) error
+	Reset(ctx context.Context, options SystemResetOptions) error
+	Shutdown(ctx context.Context)
+}
diff --git a/pkg/domain/entities/system.go b/pkg/domain/entities/system.go
index de93a382f..c62f40025 100644
--- a/pkg/domain/entities/system.go
+++ b/pkg/domain/entities/system.go
@@ -26,3 +26,60 @@ type SystemPruneReport struct {
 	*ImagePruneReport
 	VolumePruneReport []*VolumePruneReport
 }
+
+// SystemMigrateOptions describes the options needed for the
+// cli to migrate runtimes of containers
+type SystemMigrateOptions struct {
+	NewRuntime string
+}
+
+// SystemDfOptions describes the options for getting df information
+type SystemDfOptions struct {
+	Format  string
+	Verbose bool
+}
+
+// SystemDfReport describes the response for df information
+type SystemDfReport struct {
+	Images     []*SystemDfImageReport
+	Containers []*SystemDfContainerReport
+	Volumes    []*SystemDfVolumeReport
+}
+
+// SystemDfImageReport describes an image for use with df
+type SystemDfImageReport struct {
+	Repository string
+	Tag        string
+	ImageID    string
+	Created    time.Time
+	Size       int64
+	SharedSize int64
+	UniqueSize int64
+	Containers int
+}
+
+// SystemDfContainerReport describes a container for use with df
+type SystemDfContainerReport struct {
+	ContainerID  string
+	Image        string
+	Command      []string
+	LocalVolumes int
+	Size         int64
+	RWSize       int64
+	Created      time.Time
+	Status       string
+	Names        string
+}
+
+// SystemDfVolumeReport describes a volume and its size
+type SystemDfVolumeReport struct {
+	VolumeName string
+	Links      int
+	Size       int64
+}
+
+// SystemResetOptions describes the options for resetting your
+// container runtime storage, etc
+type SystemResetOptions struct {
+	Force bool
+}