feat: add count-days param to resources subcommand

close #31

Signed-off-by: Christian Kotzbauer <christian.kotzbauer@gmail.com>

cmd/resources.go

@@ -20,17 +20,19 @@ var resourcesCmd = &cobra.Command{
 		url, _ := cmd.Flags().GetString("prometheus-url")
 		username, _ := cmd.Flags().GetString("prometheus-username")
 		password, _ := cmd.Flags().GetString("prometheus-password")
+		countDays, _ := cmd.Flags().GetInt64("count-days")
 		timeout, _ := cmd.Flags().GetDuration("timeout")
 
 		selector, _ := cmd.Flags().GetString("selector")
 		namespace, _ := cmd.Flags().GetString("namespace")
 
 		r := resources.Resource{
 			Prometheus: prometheus.Prometheus{
-				Url:      url,
-				UserName: username,
-				Password: config.Secret(password),
-				Timeout:  timeout,
+				Url:       url,
+				UserName:  username,
+				Password:  config.Secret(password),
+				CountDays: countDays,
+				Timeout:   timeout,
 			},
 			KubeOverrides: overrides,
 			KubeClient:    kubernetes.NewClient(overrides),
@@ -59,6 +61,7 @@ func init() {
 	resourcesCmd.Flags().StringP("prometheus-url", "u", "", "Prometheus-URL")
 	resourcesCmd.Flags().StringP("prometheus-username", "U", "", "Prometheus-Username")
 	resourcesCmd.Flags().StringP("prometheus-password", "P", "", "Prometheus-Password")
+	resourcesCmd.Flags().Int64P("count-days", "d", 30, "Count of days to analyze metrics from (until now).")
 	resourcesCmd.Flags().DurationP("timeout", "t", time.Duration(30)*time.Second, "Timeout")
 
 	resourcesCmd.Flags().StringP("selector", "l", "", "Label-Selector")

pkg/prometheus/prometheus.go

@@ -13,10 +13,11 @@ import (
 )
 
 type Prometheus struct {
-	Url      string
-	UserName string
-	Password config.Secret
-	Timeout  time.Duration
+	Url       string
+	UserName  string
+	Password  config.Secret
+	CountDays int64
+	Timeout   time.Duration
 }
 
 func (prom Prometheus) InitPrometheus() v1.API {

pkg/resources/resources.go

@@ -16,7 +16,7 @@ import (
 func (r Resource) Execute() (printer.PrintableList, error) {
 	v1api := r.Prometheus.InitPrometheus()
 	queryRange := v1.Range{
-		Start: time.Now().Add(-time.Hour * 24 * 30),
+		Start: time.Now().Add(-time.Hour * 24 * time.Duration(r.Prometheus.CountDays)),
 		End:   time.Now(),
 		Step:  time.Minute * 5,
 	}