Refer to remote dashboard files through --url

Signed-off-by: Arnob kumar saha <[email protected]>

pkg/cmds/monitor.go

@@ -122,7 +122,7 @@ var dashboardLong = templates.LongDesc(`
 
 var dashboardExample = templates.Examples(`
 		kubectl dba monitor dashboard [DATABASE] [DATABASE_NAME] -n [NAMESPACE] \
-		[DASHBOARD_NAME] --file=[FILE_CONTAINING_DASHBOARD_JSON] \
+		[DASHBOARD_NAME] --file=[FILE_CONTAINING_DASHBOARD_JSON] --file=[FILE_CONTAINING_REMOTE_URL] \  <- these are ORed
 		--prom-svc-name=[PROM_SVC_NAME] --prom-svc-namespace=[PROM_SVC_NS] --prom-svc-port=[PROM_SVC_PORT]
 
 		# Check availability of a postgres grafana dashboard
@@ -140,27 +140,35 @@ var dashboardExample = templates.Examples(`
 			* postgres
 			* proxysql
 			* redis
+		
+		If --file is given, that is the local file. absolute or relative path both accepted.
+		If --url is given, that is the remote file. You have to specify the full raw url.
+		If just the dashboard name is given, then that will be searched in our dashboard repo. To be exact if mongodb-summary-dashboard specified only, The cli will look for the json in
+		https://raw.githubusercontent.com/appscode/grafana-dashboards/master/mongodb/mongodb-summary-dashboard.json
 `)
 
 func DashboardCMD(f cmdutil.Factory) *cobra.Command {
 	var (
 		branch string
 		file   string
+		url    string
 	)
 	cmd := &cobra.Command{
 		Use:   "dashboard",
 		Short: i18n.T("Check availability of a grafana dashboard"),
 		Long:  dashboardLong,
 
 		Run: func(cmd *cobra.Command, args []string) {
-			dashboard.Run(f, args, branch, file, prom)
+			dashboard.Run(f, args, branch, file, url, prom)
 		},
 		Example:               dashboardExample,
 		DisableFlagsInUseLine: true,
 		DisableAutoGenTag:     true,
 	}
 	cmd.Flags().StringVarP(&branch, "branch", "b", "master", "branch name of the github repo")
 	cmd.Flags().StringVarP(&file, "file", "f", "", "absolute or relative path of the file containing dashboard")
+	cmd.Flags().StringVarP(&url, "url", "u", "", "url of the raw file containing dashboard. "+
+		"For example: https://raw.githubusercontent.com/appscode/grafana-dashboards/master/mongodb/mongodb-summary-dashboard.json")
 	return cmd
 }
 

pkg/monitor/dashboard/db.go

@@ -40,7 +40,7 @@ type missingOpts struct {
 	panelTitle []string
 }
 
-func Run(f cmdutil.Factory, args []string, branch, file string, prom monitor.PromSvc) {
+func Run(f cmdutil.Factory, args []string, branch, file, url string, prom monitor.PromSvc) {
 	if len(args) < 2 {
 		log.Fatal("Enter db object's name as an argument")
 	}
@@ -61,13 +61,15 @@ func Run(f cmdutil.Factory, args []string, branch, file string, prom monitor.Pro
 	database = monitor.ConvertedResourceToSingular(database)
 	var dashboardData map[string]interface{}
 	if file == "" {
-		if len(args) < 3 {
-			log.Fatal("Enter dashboard name as third argument")
+		if url == "" { // fetch from appscode/grafana-dashboard repo
+			if len(args) < 3 {
+				log.Fatal("Enter dashboard name as third argument")
+			}
+			dashboard := args[2]
+			url = getURL(branch, database, dashboard)
 		}
-		dashboard := args[2]
-		url := getURL(branch, database, dashboard)
 		dashboardData = getDashboardFromURL(url)
-	} else {
+	} else { // the file is local
 		dashboardData = getDashboardFromFile(file)
 	}