Add example and description for the dynatrace command (#605)

* Add example and description for the dynatrace command

* format long description and examples

cmd/cluster/dynatrace/hcpGatherLogsCmd.go

@@ -19,9 +19,17 @@ import (
 
 func NewCmdHCPMustGather() *cobra.Command {
 	hcpMgCmd := &cobra.Command{
-		Use:               "gather-logs <cluster-id>",
-		Aliases:           []string{"gl"},
-		Short:             "Gather all Pod logs and Application event from HCP",
+		Use:     "gather-logs <cluster-id>",
+		Aliases: []string{"gl"},
+		Short:   "Gather all Pod logs and Application event from HCP",
+		Long: `Gathers pods logs and evnets of a given HCP from Dynatrace.
+
+  This command fetches the logs from the HCP namespace, the hypershift namespace and cert-manager related namespaces.
+  Logs will be dumped to a directory with prefix hcp-must-gather.
+		`,
+		Example: `
+  # Gather logs for a HCP cluster with cluster id hcp-cluster-id-123
+  osdctl cluster dynatrace gather-logs hcp-cluster-id-123`,
 		Args:              cobra.ExactArgs(1),
 		DisableAutoGenTag: true,
 		Run: func(cmd *cobra.Command, args []string) {

cmd/cluster/dynatrace/logsCmd.go

@@ -26,8 +26,15 @@ var (
 
 func NewCmdLogs() *cobra.Command {
 	logsCmd := &cobra.Command{
-		Use:               "logs <cluster-id>",
-		Short:             "Fetch logs from Dynatrace",
+		Use:   "logs <cluster-id>",
+		Short: "Fetch logs from Dynatrace",
+		Long: `Fetch logs from Dynatrace and display the logs like oc logs.
+
+  This command also prints the Dynatrace URL and the corresponding DQL in the output.`,
+		Example: `
+  # Get the logs of HCP cluster hcp-cluster-id-123.
+  # Specify to get the logs of the pod alertmanager-main-0 in namespace openshift-monitoring
+  osdctl cluster dynatrace logs hcp-cluster-id-123 --namespace openshift-monitoring --pod alertmanager-main-0`,
 		Args:              cobra.ExactArgs(1),
 		DisableAutoGenTag: true,
 		Run: func(cmd *cobra.Command, args []string) {