v2 system subcommand

add system df, info, load, renumber, and migrate

Refactor for specialized libpod engines

add the ability to prune images, volumes, containers, and pods

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

1 files changed, 82 insertions, 0 deletions

diff --git a/cmd/podman/system/reset.go b/cmd/podman/system/reset.go
new file mode 100644
index 000000000..22ddc7529
--- /dev/null
+++ b/cmd/podman/system/reset.go
@@ -0,0 +1,82 @@
+package system
+
+import (
+	"bufio"
+	"fmt"
+	"os"
+	"strings"
+
+	"github.com/containers/libpod/cmd/podman/registry"
+	"github.com/containers/libpod/cmd/podman/validate"
+	"github.com/containers/libpod/pkg/domain/entities"
+	"github.com/containers/libpod/pkg/domain/infra"
+	"github.com/pkg/errors"
+	"github.com/spf13/cobra"
+)
+
+var (
+	systemResetDescription = `Reset podman storage back to default state"
+
+  All containers will be stopped and removed, and all images, volumes and container content will be removed.
+`
+	systemResetCommand = &cobra.Command{
+		Use:   "reset",
+		Args:  validate.NoArgs,
+		Short: "Reset podman storage",
+		Long:  systemResetDescription,
+		Run:   reset,
+	}
+)
+
+var (
+	systemResetOptions entities.SystemResetOptions
+)
+
+func init() {
+	registry.Commands = append(registry.Commands, registry.CliCommand{
+		Mode:    []entities.EngineMode{entities.ABIMode},
+		Command: systemResetCommand,
+		Parent:  systemCmd,
+	})
+	flags := systemResetCommand.Flags()
+	flags.BoolVarP(&systemResetOptions.Force, "force", "f", false, "Do not prompt for confirmation")
+}
+
+func reset(cmd *cobra.Command, args []string) {
+	// Prompt for confirmation if --force is not set
+	if !systemResetOptions.Force {
+		reader := bufio.NewReader(os.Stdin)
+		fmt.Print(`
+WARNING! This will remove:
+        - all containers
+        - all pods
+        - all images
+        - all build cache
+Are you sure you want to continue? [y/N] `)
+		answer, err := reader.ReadString('\n')
+		if err != nil {
+			fmt.Println(errors.Wrapf(err, "error reading input"))
+			os.Exit(1)
+		}
+		if strings.ToLower(answer)[0] != 'y' {
+			os.Exit(0)
+		}
+	}
+
+	// Shutdown all running engines, `reset` will hijack repository
+	registry.ContainerEngine().Shutdown(registry.Context())
+	registry.ImageEngine().Shutdown(registry.Context())
+
+	engine, err := infra.NewSystemEngine(entities.ResetMode, registry.PodmanConfig())
+	if err != nil {
+		fmt.Println(err)
+		os.Exit(125)
+	}
+	defer engine.Shutdown(registry.Context())
+
+	if err := engine.Reset(registry.Context(), systemResetOptions); err != nil {
+		fmt.Println(err)
+		os.Exit(125)
+	}
+	os.Exit(0)
+}