diff --git a/prometheus-values.yaml b/prometheus-values.yaml
index f9ab527..ce2c56b 100644
--- a/prometheus-values.yaml
+++ b/prometheus-values.yaml
@@ -1,5 +1,6 @@
 prometheus:
   prometheusSpec:
+    serviceMonitorSelectorNilUsesHelmValues: false
     storageSpec:
       volumeClaimTemplate:
         spec:
diff --git a/telegraf-service-monitor.yaml b/telegraf-service-monitor.yaml
index 37b5100..e0f8e96 100644
--- a/telegraf-service-monitor.yaml
+++ b/telegraf-service-monitor.yaml
@@ -4,6 +4,7 @@ metadata:
   name: telegraf
   labels:
     app: telegraf
+    release: prometheus # this can make the service monitor be discovered by prometheus
 spec:
   namespaceSelector:
     matchNames:
@@ -15,18 +16,18 @@ spec:
   endpoints:
     - port: prometheus-client
       interval: 30s
----
+# ---
 
-apiVersion: monitoring.coreos.com/v1
-kind: Prometheus
-metadata:
-  name: prometheus
-spec:
-  serviceAccountName: prometheus
-  serviceMonitorSelector:
-    matchLabels:
-      app: telegraf
-  resources:
-    requests:
-      memory: 100Mi
-  enableAdminAPI: false
+# apiVersion: monitoring.coreos.com/v1
+# kind: Prometheus
+# metadata:
+#   name: telegraf
+# spec:
+#   serviceAccountName: prometheus
+#   serviceMonitorSelector:
+#     matchLabels:
+#       app: telegraf
+#   resources:
+#     requests:
+#       memory: 100Mi
+#   enableAdminAPI: false
diff --git a/telegraf-values.yaml b/telegraf-values.yaml
index 4509c7c..d196a26 100644
--- a/telegraf-values.yaml
+++ b/telegraf-values.yaml
@@ -1,5 +1,4 @@
 replicaCount: 1
-
 image:
   repo: "telegraf"
   tag: "1.14-alpine"
@@ -50,7 +49,7 @@ config:
     precision: ""
     debug: true
     quiet: false
-    logfile: "/var/log/telegraf/client.log"
+    logfile: ""
     hostname: "$HOSTNAME"
     omit_hostname: false
   processors:
@@ -66,9 +65,8 @@ config:
     - prometheus_client:
         listen: ":9126"
         path: /metrics
-        expiration_interval: 300s
+        expiration_interval: 1000s
         string_as_label: true
-        metric_version: 2
   inputs:
     - github:
         repositories:
@@ -79,11 +77,10 @@ config:
         access_token: 6bc9a1aa2d8a13da59127d4184167acc84e7bbfa
         http_timeout: 10s
     - http:
-        interval: "1800s"
+        interval: "900s"
         urls:
           - https://hub.docker.com/v2/repositories/wahyd4/
         method: GET
-        # headers: {"User-Agent"= "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.100 Safari/537.36"}
         insecure_skip_verify: true
         timeout: 5s
         data_format: json
@@ -94,7 +91,7 @@ config:
         json_string_fields:
           - name
     - http:
-        interval: "1800s"
+        interval: "900s"
         urls:
           - https://api.waqi.info/feed/chengdu/us-consulate/?token=97578eb58bcfb3ddb7280af6c6cb75df9add8200
           - https://api.waqi.info/feed/chengdu/?token=97578eb58bcfb3ddb7280af6c6cb75df9add8200
@@ -103,7 +100,8 @@ config:
           - https://api.waqi.info/feed/neijiang/?token=97578eb58bcfb3ddb7280af6c6cb75df9add8200
           - https://api.waqi.info/feed/melbourne/?token=97578eb58bcfb3ddb7280af6c6cb75df9add8200
         method: GET
-        # headers: {"User-Agent"= "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.100 Safari/537.36"}
+        # headers: |
+        #   {"User-Agent"= "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.100 Safari/537.36"}
         insecure_skip_verify: true
         timeout: 10s
         data_format: json