chore: remove legacy engines from the flow

Signed-off-by: Abhinandan Purkait <purkaitabhinandan@gmail.com>

README.md

@@ -18,7 +18,7 @@ OpenEBSCTL is a kubectl plugin to manage OpenEBS storage components.
 ## Project Status
 
 **Alpha**. Under active development and seeking [contributions from the community](#contributing).
-The CLI currently supports managing `cStor`, `Jiva`, `LocalPV-LVM`, `LocalPV-ZFS` Cas-Engines.
+The CLI currently supports managing `LocalPV-LVM`, `LocalPV-ZFS` and `LocalPV-HostPath` Engines.
 
 ## Table of Contents
 * [Installation](#installation)
@@ -59,44 +59,33 @@ OpenEBSCTL is available on Linux, macOS and Windows platforms.
 - `cd openebsctl`
 - Run `make openebsctl`
 
-## Code Walkthrough
-
-1. Install [vscode](https://code.visualstudio.com/)
-2. Install [CodeTour plugin](https://marketplace.visualstudio.com/items?itemName=vsls-contrib.codetour) on vscode
-3. Open this project on vscode & press `[ctrl] + [shift] + [p]` or `[command] + [shift] + [p]` and click `CodeTour: Open The Tour File` and locate the appropriate `*.tour` file. The code walkthrough will begin. Happy Contributing!
-
 ## Usage
 
 * ```bash
   $ kubectl openebs
-  openebs is a a kubectl plugin for interacting with OpenEBS storage components such as storage(pools, volumegroups), volumes, blockdevices, pvcs.
+  kubectl openebs is a a kubectl plugin for interacting with OpenEBS storage components such as storage(zfspools, volumegroups), volumes, pvcs.
   Find out more about OpenEBS on https://openebs.io/
-
+  
   Usage:
-  kubectl openebs [command] [resource] [...names] [flags]
+  openebs [command]
 
   Available Commands:
-  completion  Outputs shell completion code for the specified shell (bash or zsh)
-  describe    Provide detailed information about an OpenEBS resource
-  get         Provides fetching operations related to a Volume/Pool
-  help        Help about any command
-  version     Shows openebs kubectl plugin's version
+  cluster-info Show component version, status and running components for each installed engine
+  completion   Outputs shell completion code for the specified shell (bash or zsh)
+  describe     Provide detailed information about an OpenEBS resource
+  get          Provides fetching operations related to a Volume/Storage
+  help         Help about any command
+  version      Shows openebs kubectl plugin's version
   
   Flags:
-  -h, --help                           help for openebs
-  -n, --namespace string               If present, the namespace scope for this CLI request
-      --openebs-namespace string       to read the openebs namespace from user.
-                                       If not provided it is determined from components.
-      --cas-type                       to specify the cas-type of the engine, for engine based filtering.
-                                       ex- cstor, jiva, localpv-lvm, localpv-zfs.
-      --debug                          to launch the debugging mode for cstor pvcs.
+  -h, --help                help for openebs
+  -c, --kubeconfig string   path to config file
+  -v, --version             version for openebs
   
-  Use "kubectl openebs command --help" for more information about a command.
+  Use "openebs [command] --help" for more information about a command.
   ```
 
 * To know more about various engine specific commands check these:-
-  * [cStor](docs/cstor/README.md)
-  * [Jiva](docs/jiva/README.md)
   * [LocalPV-LVM](docs/localpv-lvm/README.md)
   * [LocalPV-ZFS](docs/localpv-zfs/README.md)
   

cmd/clusterinfo/cluster-info.go

@@ -22,14 +22,6 @@ import (
 	"github.com/spf13/cobra"
 )
 
-const (
-	clusterInfoCmdHelp = `Usage:
-	kubectl openebs cluster-info
-Flags:
-  -h, --help                           help for openebs get command
-`
-)
-
 // NewCmdClusterInfo shows OpenEBSCTL cluster-info
 func NewCmdClusterInfo(rootCmd *cobra.Command) *cobra.Command {
 	cmd := &cobra.Command{
@@ -39,6 +31,5 @@ func NewCmdClusterInfo(rootCmd *cobra.Command) *cobra.Command {
 			util.CheckErr(clusterinfo.ShowClusterInfo(), util.Fatal)
 		},
 	}
-	cmd.SetUsageTemplate(clusterInfoCmdHelp)
 	return cmd
 }

cmd/completion/completion.go

@@ -57,7 +57,7 @@ func NewCmdCompletion(rootCmd *cobra.Command) *cobra.Command {
 			RunCompletion(os.Stdout, rootCmd, args)
 		},
 	}
-	cmd.SetUsageTemplate(completionUsage)
+	//cmd.SetUsageTemplate(completionUsage)
 	return cmd
 }
 

cmd/describe/describe.go

@@ -20,44 +20,17 @@ import (
 	"github.com/spf13/cobra"
 )
 
-const (
-	volumeCommandHelpText = `Show detailed description of a specific OpenEBS resource:
-
-Usage:
-  kubectl openebs describe [volume|storage|pvc] [...names] [flags]
-
-Describe a Volume:
-  kubectl openebs describe volume [...names] [flags]
-
-Describe PVCs present in the same namespace:
-  kubectl openebs describe pvc [...names] [flags]
-
-Describe a Storage :
-  kubectl openebs describe storage [...names] [flags]
-
-Flags:
-  -h, --help                           help for openebs
-  -n, --namespace string               to read the namespace for the pvc.
-      --openebs-namespace string       to read the openebs namespace from user.
-                                       If not provided it is determined from components.
-      --cas-type                       to specify the cas-type of the engine, for engine based filtering.
-                                       ex- cstor, jiva, localpv-lvm, localpv-zfs.
-      --debug                          to launch the debugging mode for cstor pvcs.
-`
-)
-
 // NewCmdDescribe provides options for managing OpenEBS Volume
 func NewCmdDescribe(rootCmd *cobra.Command) *cobra.Command {
 	cmd := &cobra.Command{
 		Use:       "describe",
-		ValidArgs: []string{"pool", "volume", "pvc"},
+		ValidArgs: []string{"storage", "volume", "pvc"},
 		Short:     "Provide detailed information about an OpenEBS resource",
 	}
 	cmd.AddCommand(
 		NewCmdDescribeVolume(),
 		NewCmdDescribePVC(),
 		NewCmdDescribeStorage(),
 	)
-	cmd.SetUsageTemplate(volumeCommandHelpText)
 	return cmd
 }

cmd/describe/pvc.go

@@ -22,27 +22,10 @@ import (
 	"github.com/spf13/cobra"
 )
 
-var (
-	pvcInfoCommandHelpText = `This command fetches information and status  of  the  various  aspects 
-of  the  PersistentVolumeClaims  and  its underlying related resources 
-in the provided namespace. If no namespace is provided it uses default
-namespace for execution.
-
-Usage:
-  kubectl openebs describe pvc [...names] [flags]
-
-Flags:
-  -h, --help                           help for openebs
-  -n, --namespace string               to read the namespace for the pvc.
-      --openebs-namespace string       to read the openebs namespace from user.
-                                       If not provided it is determined from components.
-      --debug                          to launch the debugging mode for cstor pvcs.
-`
-)
-
 // NewCmdDescribePVC Displays the pvc describe details
 func NewCmdDescribePVC() *cobra.Command {
-	var debug bool
+	var openebsNs string
+	var pvNs string
 	cmd := &cobra.Command{
 		Use:     "pvc",
 		Aliases: []string{"pvcs", "persistentvolumeclaims", "persistentvolumeclaim"},
@@ -53,15 +36,10 @@ func NewCmdDescribePVC() *cobra.Command {
 				pvNs = "default"
 			}
 			openebsNamespace, _ = cmd.Flags().GetString("openebs-namespace")
-			if debug {
-				util.CheckErr(persistentvolumeclaim.Debug(args, pvNs, openebsNamespace), util.Fatal)
-			} else {
-				util.CheckErr(persistentvolumeclaim.Describe(args, pvNs, openebsNamespace), util.Fatal)
-			}
-
+			util.CheckErr(persistentvolumeclaim.Describe(args, pvNs, openebsNamespace), util.Fatal)
 		},
 	}
-	cmd.SetUsageTemplate(pvcInfoCommandHelpText)
-	cmd.Flags().BoolVar(&debug, "debug", false, "Debug cstor volume")
+	cmd.PersistentFlags().StringVarP(&openebsNs, "openebs-namespace", "", "", "to read the openebs namespace from user.\nIf not provided it is determined from components.")
+	cmd.PersistentFlags().StringVarP(&pvNs, "namespace", "n", "", "to read the namespace of the pvc from the user. If not provided defaults to default namespace.")
 	return cmd
 }

cmd/describe/storage.go

@@ -17,32 +17,18 @@ limitations under the License.
 package describe
 
 import (
+	"fmt"
 	"strings"
 
 	"github.com/openebs/openebsctl/pkg/storage"
 	"github.com/openebs/openebsctl/pkg/util"
 	"github.com/spf13/cobra"
 )
 
-var (
-	storageInfoCommandHelpText = `This command fetches information and status of the various aspects 
-of the openebs storage and its underlying related resources in the openebs namespace.
-
-Usage:
-  kubectl openebs describe storage [...names] [flags]
-
-Flags:
-  -h, --help                           help for openebs
-      --openebs-namespace string       to read the openebs namespace from user.
-                                       If not provided it is determined from components.
-      --cas-type                       to specify the cas-type of the engine, for engine based filtering.
-                                       ex- cstor, jiva, localpv-lvm, localpv-zfs.
-`
-)
-
 // NewCmdDescribeStorage displays OpenEBS storage related information.
 func NewCmdDescribeStorage() *cobra.Command {
 	var casType string
+	var openebsNs string
 	cmd := &cobra.Command{
 		Use:     "storage",
 		Aliases: []string{"storages", "s"},
@@ -54,7 +40,7 @@ func NewCmdDescribeStorage() *cobra.Command {
 			util.CheckErr(storage.Describe(args, openebsNs, casType), util.Fatal)
 		},
 	}
-	cmd.SetUsageTemplate(storageInfoCommandHelpText)
-	cmd.PersistentFlags().StringVarP(&casType, "cas-type", "", "", "the cas-type filter option for fetching resources")
+	cmd.PersistentFlags().StringVarP(&openebsNs, "openebs-namespace", "", "", "to read the openebs namespace from user.\nIf not provided it is determined from components.")
+	cmd.PersistentFlags().StringVarP(&casType, "cas-type", "", "", fmt.Sprintf("the type of the engine %s, %s", util.LVMCasType, util.ZFSCasType))
 	return cmd
 }

cmd/describe/volume.go

@@ -22,33 +22,18 @@ import (
 	"github.com/spf13/cobra"
 )
 
-var (
-	volumeInfoCommandHelpText = `This command fetches information and status of the various
-aspects of a cStor Volume such as ISCSI, Controller, and Replica.
-
-Usage:
-  kubectl openebs describe volume [...names] [flags]
-
-Flags:
-  -h, --help                           help for openebs
-  -n, --namespace string               to read the namespace for the pvc.
-      --openebs-namespace string       to read the openebs namespace from user.
-                                       If not provided it is determined from components.
-`
-)
-
 // NewCmdDescribeVolume displays OpenEBS Volume information.
 func NewCmdDescribeVolume() *cobra.Command {
+	var openebsNs string
 	cmd := &cobra.Command{
 		Use:     "volume",
 		Aliases: []string{"volumes", "vol", "v"},
 		Short:   "Displays Openebs information",
 		Run: func(cmd *cobra.Command, args []string) {
-			// TODO: Get this from flags, pflag, etc
 			openebsNS, _ := cmd.Flags().GetString("openebs-namespace")
 			util.CheckErr(volume.Describe(args, openebsNS), util.Fatal)
 		},
 	}
-	cmd.SetUsageTemplate(volumeInfoCommandHelpText)
+	cmd.PersistentFlags().StringVarP(&openebsNs, "openebs-namespace", "", "", "to read the openebs namespace from user.\nIf not provided it is determined from components.")
 	return cmd
 }