Labels: Add support for glustercli

This PR contains glustercli and client implementation
for labels

Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com>

glustercli/cmd/label-create.go

@@ -0,0 +1,66 @@
+package cmd
+
+import (
+	"fmt"
+
+	"github.com/gluster/glusterd2/pkg/api"
+
+	log "github.com/sirupsen/logrus"
+	"github.com/spf13/cobra"
+)
+
+const (
+	labelCreateHelpShort = "Create a label"
+	labelCreateHelpLong  = "Create a label that can use to tag different objects. Label values will be created with default values if choose to omit, specific label values should provide using relevant flags."
+)
+
+var (
+	flagSnapMaxHardLimit uint64
+	flagSnapMaxSoftLimit uint64
+	flagActivateOnCreate bool
+	flagAutoDelete       bool
+	flagDescription      string
+
+	labelCreateCmd = &cobra.Command{
+		Use:   "create <labelname>",
+		Short: labelCreateHelpShort,
+		Long:  labelCreateHelpLong,
+		Args:  cobra.MinimumNArgs(1),
+		Run:   labelCreateCmdRun,
+	}
+)
+
+func init() {
+	labelCreateCmd.Flags().Uint64Var(&flagSnapMaxHardLimit, "snap-max-hard-limit", 256, "Snapshot maximum hard limit count")
+	labelCreateCmd.Flags().Uint64Var(&flagSnapMaxSoftLimit, "snap-max-soft-limit", 230, "Snapshot maximum soft limit count")
+	labelCreateCmd.Flags().BoolVar(&flagActivateOnCreate, "activate-on-create", false, "If enabled, Further snapshots will be activated after creation")
+	labelCreateCmd.Flags().BoolVar(&flagAutoDelete, "auto-delete", false, "If enabled, Snapshots will be deleted upon reaching snap-max-soft-limit. If disabled A warning log will be generated")
+	labelCreateCmd.Flags().StringVar(&flagDescription, "description", "", "Label description")
+
+	labelCmd.AddCommand(labelCreateCmd)
+}
+
+func labelCreateCmdRun(cmd *cobra.Command, args []string) {
+	labelname := args[0]
+
+	req := api.LabelCreateReq{
+		Name:             labelname,
+		SnapMaxHardLimit: flagSnapMaxHardLimit,
+		SnapMaxSoftLimit: flagSnapMaxSoftLimit,
+		ActivateOnCreate: flagActivateOnCreate,
+		AutoDelete:       flagAutoDelete,
+		Description:      flagDescription,
+	}
+
+	info, err := client.LabelCreate(req)
+	if err != nil {
+		if GlobalFlag.Verbose {
+			log.WithError(err).WithFields(
+				log.Fields{
+					"labelname": labelname,
+				}).Error("label creation failed")
+		}
+		failure("Label creation failed", err, 1)
+	}
+	fmt.Printf("%s Label created successfully\n", info.Name)
+}

glustercli/cmd/label-delete.go

@@ -0,0 +1,38 @@
+package cmd
+
+import (
+	"fmt"
+
+	log "github.com/sirupsen/logrus"
+	"github.com/spf13/cobra"
+)
+
+const (
+	labelDeleteHelpShort = "Delete labels"
+)
+
+var (
+	labelDeleteCmd = &cobra.Command{
+		Use:   "delete <labelname>",
+		Short: labelDeleteHelpShort,
+		Args:  cobra.ExactArgs(1),
+		Run:   labelDeleteCmdRun,
+	}
+)
+
+func init() {
+	labelCmd.AddCommand(labelDeleteCmd)
+}
+
+func labelDeleteCmdRun(cmd *cobra.Command, args []string) {
+	labelname := args[0]
+
+	if err := client.LabelDelete(labelname); err != nil {
+		if GlobalFlag.Verbose {
+			log.WithError(err).WithField(
+				"label", labelname).Error("label delete failed")
+		}
+		failure("Label delete failed", err, 1)
+	}
+	fmt.Printf("%s Label deleted successfully\n", labelname)
+}

glustercli/cmd/label-info.go

@@ -0,0 +1,62 @@
+package cmd
+
+import (
+	"fmt"
+
+	"github.com/gluster/glusterd2/pkg/api"
+	log "github.com/sirupsen/logrus"
+	"github.com/spf13/cobra"
+)
+
+const (
+	labelInfoHelpShort = "Get Gluster Label Info"
+)
+
+var (
+	labelInfoCmd = &cobra.Command{
+		Use:   "info <labelname>",
+		Short: labelInfoHelpShort,
+		Args:  cobra.ExactArgs(1),
+		Run:   labelInfoCmdRun,
+	}
+)
+
+func init() {
+	labelCmd.AddCommand(labelInfoCmd)
+}
+
+func labelInfoDisplay(info *api.LabelGetResp) {
+	fmt.Println()
+	fmt.Println("Label Name:", info.Name)
+	fmt.Println("Snap Max Hard Limit:", info.SnapMaxHardLimit)
+	fmt.Println("Snap Max Soft Limit:", info.SnapMaxSoftLimit)
+	fmt.Println("Auto Delete:", info.AutoDelete)
+	fmt.Println("Activate On Create:", info.ActivateOnCreate)
+	fmt.Println("Snapshot List:", info.SnapList)
+	fmt.Println("Description:", info.Description)
+	fmt.Println()
+
+	return
+}
+
+func labelInfoHandler(cmd *cobra.Command) error {
+	var info api.LabelGetResp
+	var err error
+
+	labelname := cmd.Flags().Args()[0]
+	info, err = client.LabelInfo(labelname)
+	if err != nil {
+		return err
+	}
+	labelInfoDisplay(&info)
+	return err
+}
+
+func labelInfoCmdRun(cmd *cobra.Command, args []string) {
+	if err := labelInfoHandler(cmd); err != nil {
+		if GlobalFlag.Verbose {
+			log.WithError(err).Error("error getting label info")
+		}
+		failure("Error getting Label info", err, 1)
+	}
+}

glustercli/cmd/label-list.go

@@ -0,0 +1,62 @@
+package cmd
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/gluster/glusterd2/pkg/api"
+	"github.com/olekukonko/tablewriter"
+	log "github.com/sirupsen/logrus"
+	"github.com/spf13/cobra"
+)
+
+const (
+	helpLabelListCmd = "List all Gluster Labels"
+)
+
+func init() {
+
+	labelCmd.AddCommand(labelListCmd)
+
+}
+
+func labelListHandler(cmd *cobra.Command) error {
+	var infos api.LabelListResp
+	var err error
+	labelname := cmd.Flags().Args()[0]
+
+	infos, err = client.LabelList(labelname)
+	if err != nil {
+		return err
+	}
+
+	table := tablewriter.NewWriter(os.Stdout)
+	table.SetAutoMergeCells(true)
+	table.SetRowLine(true)
+	if len(infos) == 0 {
+		fmt.Println("There are no labels in the system")
+		return nil
+	}
+	table.SetHeader([]string{"Name"})
+	for _, info := range infos {
+		table.Append([]string{info.Name})
+	}
+	table.Render()
+	return err
+}
+
+var labelListCmd = &cobra.Command{
+	Use:   "list",
+	Short: helpLabelListCmd,
+	Args:  cobra.ExactArgs(1),
+	Run:   labelListCmdRun,
+}
+
+func labelListCmdRun(cmd *cobra.Command, args []string) {
+	if err := labelListHandler(cmd); err != nil {
+		if GlobalFlag.Verbose {
+			log.WithError(err).Error("error getting label list")
+		}
+		failure("Error getting Label list", err, 1)
+	}
+}

glustercli/cmd/label-reset.go

@@ -0,0 +1,46 @@
+package cmd
+
+import (
+	"errors"
+	"fmt"
+
+	"github.com/gluster/glusterd2/pkg/api"
+
+	log "github.com/sirupsen/logrus"
+	"github.com/spf13/cobra"
+)
+
+const (
+	labelResetCmdHelpShort = "Reset value of  label configuratio options"
+	labelResetCmdHelpLong  = "Reset options on a specified gluster snapshot label. Needs a label name and at least one option"
+)
+
+var labelResetCmd = &cobra.Command{
+	Use:   "reset <labelname> <options>",
+	Short: labelResetCmdHelpShort,
+	Long:  labelResetCmdHelpLong,
+	Args:  cobra.RangeArgs(1, 2),
+	Run: func(cmd *cobra.Command, args []string) {
+		var req api.LabelResetReq
+		labelname := args[0]
+		options := args[1:]
+		if len(args) < 2 {
+			failure("Specify atleast one label option to reset", errors.New("Specify atleast one label option to reset"), 1)
+		} else {
+			req.Configurations = options
+		}
+
+		err := client.LabelReset(req, labelname)
+		if err != nil {
+			if GlobalFlag.Verbose {
+				log.WithError(err).WithField("label", labelname).Error("label reset failed")
+			}
+			failure("Snapshot label reset failed", err, 1)
+		}
+		fmt.Printf("Snapshot label options reset successfully\n")
+	},
+}
+
+func init() {
+	labelCmd.AddCommand(labelResetCmd)
+}

glustercli/cmd/label-set.go

@@ -0,0 +1,73 @@
+package cmd
+
+import (
+	"errors"
+	"fmt"
+
+	"github.com/gluster/glusterd2/pkg/api"
+	log "github.com/sirupsen/logrus"
+	"github.com/spf13/cobra"
+)
+
+const (
+	labelSetHelpShort = "Set a label value"
+	labelSetHelpLong  = "Modify one or more label value ."
+)
+
+var (
+	labelSetCmd = &cobra.Command{
+		Use:   "set <labelname> <option> <value> [<option> <value>]...",
+		Short: labelSetHelpShort,
+		Long:  labelSetHelpLong,
+		Args:  labelSetArgsValidate,
+		Run:   labelSetCmdRun,
+	}
+)
+
+func labelSetArgsValidate(cmd *cobra.Command, args []string) error {
+	// Ensure we have enough arguments for the command
+	if len(args) < 3 {
+		return errors.New("need at least 3 arguments")
+	}
+
+	// Ensure we have a proper option-value pairs
+	if (len(args)-1)%2 != 0 {
+		return errors.New("needs '<option> <value>' to be in pairs")
+	}
+
+	return nil
+}
+
+func init() {
+	labelCmd.AddCommand(labelSetCmd)
+}
+
+func labelSetCmdRun(cmd *cobra.Command, args []string) {
+	labelname := args[0]
+	options := args[1:]
+
+	if err := labelSetHandler(cmd, labelname, options); err != nil {
+		if GlobalFlag.Verbose {
+			log.WithError(err).WithField(
+				"labelname", labelname).Error("label set failed")
+		}
+		failure("Label set failed", err, 1)
+	} else {
+		fmt.Printf("Label Values set successfully for %s label\n", labelname)
+	}
+
+}
+
+func labelSetHandler(cmd *cobra.Command, labelname string, options []string) error {
+	confs := make(map[string]string)
+	for op, val := range options {
+		if op%2 == 0 {
+			confs[val] = options[op+1]
+		}
+	}
+	req := api.LabelSetReq{
+		Configurations: confs,
+	}
+	err := client.LabelSet(req, labelname)
+	return err
+}

glustercli/cmd/labels.go

@@ -0,0 +1,18 @@
+package cmd
+
+import (
+	"github.com/spf13/cobra"
+)
+
+const (
+	helpLabelCmd = "Snapshot Label Management"
+)
+
+var labelCmd = &cobra.Command{
+	Use:   "label",
+	Short: helpLabelCmd,
+}
+
+func init() {
+	snapshotCmd.AddCommand(labelCmd)
+}