Add podman system reset command

This command will destroy all data created via podman.
It will remove containers, images, volumes, pods.

Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>

2 files changed, 111 insertions, 0 deletions

diff --git a/libpod/reset.go b/libpod/reset.go
new file mode 100644
index 000000000..a35b476a4
--- /dev/null
+++ b/libpod/reset.go
@@ -0,0 +1,107 @@
+package libpod
+
+import (
+	"context"
+	"os"
+	"path/filepath"
+
+	"github.com/containers/libpod/libpod/define"
+	"github.com/containers/libpod/pkg/rootless"
+	"github.com/pkg/errors"
+	"github.com/sirupsen/logrus"
+)
+
+// Reset removes all storage
+func (r *Runtime) Reset(ctx context.Context) error {
+
+	pods, err := r.GetAllPods()
+	if err != nil {
+		return err
+	}
+	for _, p := range pods {
+		if err := r.RemovePod(ctx, p, true, true); err != nil {
+			if errors.Cause(err) == define.ErrNoSuchPod {
+				continue
+			}
+			logrus.Errorf("Error removing Pod %s: %v", p.ID(), err)
+		}
+	}
+
+	ctrs, err := r.GetAllContainers()
+	if err != nil {
+		return err
+	}
+
+	for _, c := range ctrs {
+		if err := r.RemoveContainer(ctx, c, true, true); err != nil {
+			if err := r.RemoveStorageContainer(c.ID(), true); err != nil {
+				if errors.Cause(err) == define.ErrNoSuchCtr {
+					continue
+				}
+				logrus.Errorf("Error removing container %s: %v", c.ID(), err)
+			}
+		}
+	}
+
+	if err := stopPauseProcess(); err != nil {
+		logrus.Errorf("Error stopping pause process: %v", err)
+	}
+
+	ir := r.ImageRuntime()
+	images, err := ir.GetImages()
+	if err != nil {
+		return err
+	}
+
+	for _, i := range images {
+		if err := i.Remove(ctx, true); err != nil {
+			if errors.Cause(err) == define.ErrNoSuchImage {
+				continue
+			}
+			logrus.Errorf("Error removing image %s: %v", i.ID(), err)
+		}
+	}
+	volumes, err := r.state.AllVolumes()
+	if err != nil {
+		return err
+	}
+	for _, v := range volumes {
+		if err := r.RemoveVolume(ctx, v, true); err != nil {
+			if errors.Cause(err) == define.ErrNoSuchVolume {
+				continue
+			}
+			logrus.Errorf("Error removing volume %s: %v", v.config.Name, err)
+		}
+	}
+
+	_, prevError := r.store.Shutdown(true)
+	if err := os.RemoveAll(r.store.GraphRoot()); err != nil {
+		if prevError != nil {
+			logrus.Error(prevError)
+		}
+		prevError = err
+	}
+	if err := os.RemoveAll(r.store.RunRoot()); err != nil {
+		if prevError != nil {
+			logrus.Error(prevError)
+		}
+		prevError = err
+	}
+	if err := os.RemoveAll(r.config.TmpDir); err != nil {
+		if prevError != nil {
+			logrus.Error(prevError)
+		}
+		prevError = err
+	}
+	if rootless.IsRootless() {
+		configPath := filepath.Join(os.Getenv("HOME"), ".config/containers")
+		if err := os.RemoveAll(configPath); err != nil {
+			if prevError != nil {
+				logrus.Error(prevError)
+			}
+			prevError = err
+		}
+	}
+
+	return prevError
+}
diff --git a/libpod/runtime_migrate_unsupported.go b/libpod/runtime_migrate_unsupported.go
index 1a9e46fdc..e362cca63 100644
--- a/libpod/runtime_migrate_unsupported.go
+++ b/libpod/runtime_migrate_unsupported.go
@@ -9,3 +9,7 @@ import (
 func (r *Runtime) migrate(ctx context.Context) error {
 	return nil
 }
+
+func stopPauseProcess() error {
+	return nil
+}