fix PrometheusDuplicateTimestamps alert

ansible/01-playbook/roles/monitoring/files/values.yaml

@@ -95,7 +95,7 @@ alertmanager:
       routes:
       - receiver: 'null'
         matchers:
-          - alertname =~ "(Watchdog|etcdHighCommitDurations|etcdHighFsyncDurations|PrometheusDuplicateTimestamps|CPUThrottlingHigh)" # alerts to be ignored
+          - alertname =~ "(Watchdog|InfoInhibitor|etcdHighCommitDurations|etcdHighFsyncDurations|CPUThrottlingHigh)" # alerts to be ignored
       - receiver: 'slack-notifications'
         continue: true
       - receiver: 'outlook-notifications'
@@ -139,4 +139,12 @@ kubeEtcd:
   #   scheme: http
   #   relabelings:
   #     - targetLabel: env
-  #       replacement: prod
+  #       replacement: prod
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+
+kube-state-metrics:
+  prometheus:
+    monitor:
+      metricRelabelings:
+        - action: drop
+          regex: "kube_endpoint_ports;etcd-metrics" # fix PrometheusDuplicateTimestamps alert
+          sourceLabels: [__name__, endpoint]
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