Fix kubelet 1.19 metrics name

Signed-off-by: Fabian Vilers <fabian.vilers@dev-one.com>

manifests/grafana-dashboardDefinitions.yaml

@@ -18258,7 +18258,7 @@ items:
                           "tableColumn": "",
                           "targets": [
                               {
-                                  "expr": "sum(kubelet_running_pod_count{cluster=\"$cluster\", job=\"kubelet\", metrics_path=\"/metrics\", instance=~\"$instance\"})",
+                                  "expr": "sum(kubelet_running_pods{cluster=\"$cluster\", job=\"kubelet\", metrics_path=\"/metrics\", instance=~\"$instance\"})",
                                   "format": "time_series",
                                   "intervalFactor": 2,
                                   "legendFormat": "{{instance}}",
@@ -18342,7 +18342,7 @@ items:
                           "tableColumn": "",
                           "targets": [
                               {
-                                  "expr": "sum(kubelet_running_container_count{cluster=\"$cluster\", job=\"kubelet\", metrics_path=\"/metrics\", instance=~\"$instance\"})",
+                                  "expr": "sum(kubelet_running_containers{cluster=\"$cluster\", job=\"kubelet\", metrics_path=\"/metrics\", instance=~\"$instance\"})",
                                   "format": "time_series",
                                   "intervalFactor": 2,
                                   "legendFormat": "{{instance}}",

manifests/prometheus-rules.yaml

@@ -1437,7 +1437,7 @@ spec:
         message: Kubelet '{{ $labels.node }}' is running at {{ $value | humanizePercentage }} of its Pod capacity.
         runbook_url: https://github.com/kubernetes-monitoring/kubernetes-mixin/tree/master/runbook.md#alert-name-kubelettoomanypods
       expr: |
-        max(max(kubelet_running_pod_count{job="kubelet", metrics_path="/metrics"}) by(instance) * on(instance) group_left(node) kubelet_node_name{job="kubelet", metrics_path="/metrics"}) by(node) / max(kube_node_status_capacity_pods{job="kube-state-metrics"} != 1) by(node) > 0.95
+        max(max(kubelet_running_pods{job="kubelet", metrics_path="/metrics"}) by(instance) * on(instance) group_left(node) kubelet_node_name{job="kubelet", metrics_path="/metrics"}) by(node) / max(kube_node_status_capacity_pods{job="kube-state-metrics"} != 1) by(node) > 0.95
       for: 15m
       labels:
         severity: warning