podmanv2 info

add ability to run info for v2

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

cmd/podmanV2/system/info.go

@@ -0,0 +1,74 @@
+package system
+
+import (
+	"encoding/json"
+	"fmt"
+	"os"
+	"text/template"
+
+	"github.com/containers/libpod/cmd/podmanV2/registry"
+	"github.com/containers/libpod/pkg/domain/entities"
+	"github.com/spf13/cobra"
+	"gopkg.in/yaml.v2"
+)
+
+var (
+	infoDescription = `Display information pertaining to the host, current storage stats, and build of podman.
+
+  Useful for the user and when reporting issues.
+`
+	infoCommand = &cobra.Command{
+		Use:     "info",
+		Args:    cobra.NoArgs,
+		Long:    infoDescription,
+		Short:   "Display podman system information",
+		PreRunE: preRunE,
+		RunE:    info,
+		Example: `podman info`,
+	}
+)
+
+var (
+	inFormat string
+	debug    bool
+)
+
+func init() {
+	registry.Commands = append(registry.Commands, registry.CliCommand{
+		Mode:    []entities.EngineMode{entities.ABIMode, entities.TunnelMode},
+		Command: infoCommand,
+	})
+	flags := infoCommand.Flags()
+	flags.BoolVarP(&debug, "debug", "D", false, "Display additional debug information")
+	flags.StringVarP(&inFormat, "format", "f", "", "Change the output format to JSON or a Go template")
+}
+
+func info(cmd *cobra.Command, args []string) error {
+	info, err := registry.ContainerEngine().Info(registry.GetContext())
+	if err != nil {
+		return err
+	}
+
+	if inFormat == "json" {
+		b, err := json.MarshalIndent(info, "", "  ")
+		if err != nil {
+			return err
+		}
+		fmt.Println(string(b))
+		return nil
+	}
+	if !cmd.Flag("format").Changed {
+		b, err := yaml.Marshal(info)
+		if err != nil {
+			return err
+		}
+		fmt.Println(string(b))
+		return nil
+	}
+	tmpl, err := template.New("info").Parse(inFormat)
+	if err != nil {
+		return err
+	}
+	err = tmpl.Execute(os.Stdout, info)
+	return err
+}

pkg/bindings/system/info.go

@@ -9,15 +9,15 @@ import (
 )
 
 // Info returns information about the libpod environment and its stores
-func Info(ctx context.Context) (define.Info, error) {
+func Info(ctx context.Context) (*define.Info, error) {
 	info := define.Info{}
 	conn, err := bindings.GetClient(ctx)
 	if err != nil {
-		return info, err
+		return nil, err
 	}
 	response, err := conn.DoRequest(nil, http.MethodGet, "/info", nil)
 	if err != nil {
-		return info, err
+		return nil, err
 	}
-	return info, response.Process(&info)
+	return &info, response.Process(&info)
 }

pkg/domain/entities/engine_container.go

@@ -48,4 +48,6 @@ type ContainerEngine interface {
 	VolumeList(ctx context.Context, opts VolumeListOptions) ([]*VolumeListReport, error)
 	VolumePrune(ctx context.Context, opts VolumePruneOptions) ([]*VolumePruneReport, error)
 	VolumeRm(ctx context.Context, namesOrIds []string, opts VolumeRmOptions) ([]*VolumeRmReport, error)
+
+	Info(ctx context.Context) (*define.Info, error)
 }

pkg/domain/infra/abi/system.go

@@ -0,0 +1,13 @@
+// +build ABISupport
+
+package abi
+
+import (
+	"context"
+
+	"github.com/containers/libpod/libpod/define"
+)
+
+func (ic *ContainerEngine) Info(ctx context.Context) (*define.Info, error) {
+	return ic.Libpod.Info()
+}

pkg/domain/infra/tunnel/system.go

@@ -1 +1,12 @@
 package tunnel
+
+import (
+	"context"
+
+	"github.com/containers/libpod/libpod/define"
+	"github.com/containers/libpod/pkg/bindings/system"
+)
+
+func (ic *ContainerEngine) Info(ctx context.Context) (*define.Info, error) {
+	return system.Info(ic.ClientCxt)
+}