Add networkPolicies for alertmanager, grafana, prometheus-operator and prometheus

Signed-off-by: GitHub <noreply@github.com>
(cherry picked from commit 86e16b539cc57710b50f4692848cab5645e3d2bc)

manifests/alertmanager-networkPolicy.yaml

@@ -0,0 +1,33 @@
+apiVersion: networking.k8s.io/v1
+kind: NetworkPolicy
+metadata:
+  labels:
+    app.kubernetes.io/component: alert-router
+    app.kubernetes.io/instance: main
+    app.kubernetes.io/name: alertmanager
+    app.kubernetes.io/part-of: kube-prometheus
+    app.kubernetes.io/version: 0.23.0
+  name: alertmanager-main
+  namespace: monitoring
+spec:
+  egress:
+  - {}
+  ingress:
+  - from:
+    - podSelector:
+        matchLabels:
+          app.kubernetes.io/name: prometheus
+    ports:
+    - port: 9093
+      protocol: TCP
+    - port: 8080
+      protocol: TCP
+  podSelector:
+    matchLabels:
+      app.kubernetes.io/component: alert-router
+      app.kubernetes.io/instance: main
+      app.kubernetes.io/name: alertmanager
+      app.kubernetes.io/part-of: kube-prometheus
+  policyTypes:
+  - Egress
+  - Ingress

manifests/grafana-networkPolicy.yaml

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+apiVersion: networking.k8s.io/v1
+kind: NetworkPolicy
+metadata:
+  labels:
+    app.kubernetes.io/component: grafana
+    app.kubernetes.io/name: grafana
+    app.kubernetes.io/part-of: kube-prometheus
+    app.kubernetes.io/version: 8.3.6
+  name: grafana
+  namespace: monitoring
+spec:
+  egress:
+  - {}
+  ingress:
+  - from:
+    - podSelector:
+        matchLabels:
+          app.kubernetes.io/name: prometheus
+    ports:
+    - port: 3000
+      protocol: TCP
+  podSelector:
+    matchLabels:
+      app.kubernetes.io/component: grafana
+      app.kubernetes.io/name: grafana
+      app.kubernetes.io/part-of: kube-prometheus
+  policyTypes:
+  - Egress
+  - Ingress

manifests/kubeStateMetrics-networkPolicy.yaml

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+apiVersion: networking.k8s.io/v1
+kind: NetworkPolicy
+metadata:
+  labels:
+    app.kubernetes.io/component: exporter
+    app.kubernetes.io/name: kube-state-metrics
+    app.kubernetes.io/part-of: kube-prometheus
+    app.kubernetes.io/version: 2.3.0
+  name: kube-state-metrics
+  namespace: monitoring
+spec:
+  egress:
+  - {}
+  ingress:
+  - from:
+    - podSelector:
+        matchLabels:
+          app.kubernetes.io/name: prometheus
+    ports:
+    - port: 8443
+      protocol: TCP
+    - port: 9443
+      protocol: TCP
+  podSelector:
+    matchLabels:
+      app.kubernetes.io/component: exporter
+      app.kubernetes.io/name: kube-state-metrics
+      app.kubernetes.io/part-of: kube-prometheus
+  policyTypes:
+  - Egress
+  - Ingress

manifests/nodeExporter-networkPolicy.yaml

@@ -0,0 +1,29 @@
+apiVersion: networking.k8s.io/v1
+kind: NetworkPolicy
+metadata:
+  labels:
+    app.kubernetes.io/component: exporter
+    app.kubernetes.io/name: node-exporter
+    app.kubernetes.io/part-of: kube-prometheus
+    app.kubernetes.io/version: 1.3.1
+  name: node-exporter
+  namespace: monitoring
+spec:
+  egress:
+  - {}
+  ingress:
+  - from:
+    - podSelector:
+        matchLabels:
+          app.kubernetes.io/name: prometheus
+    ports:
+    - port: 9100
+      protocol: TCP
+  podSelector:
+    matchLabels:
+      app.kubernetes.io/component: exporter
+      app.kubernetes.io/name: node-exporter
+      app.kubernetes.io/part-of: kube-prometheus
+  policyTypes:
+  - Egress
+  - Ingress

manifests/prometheus-networkPolicy.yaml

@@ -0,0 +1,33 @@
+apiVersion: networking.k8s.io/v1
+kind: NetworkPolicy
+metadata:
+  labels:
+    app.kubernetes.io/component: prometheus
+    app.kubernetes.io/instance: k8s
+    app.kubernetes.io/name: prometheus
+    app.kubernetes.io/part-of: kube-prometheus
+    app.kubernetes.io/version: 2.33.3
+  name: prometheus-k8s
+  namespace: monitoring
+spec:
+  egress:
+  - {}
+  ingress:
+  - from:
+    - podSelector:
+        matchLabels:
+          app.kubernetes.io/name: prometheus
+    ports:
+    - port: 9090
+      protocol: TCP
+    - port: 8080
+      protocol: TCP
+  podSelector:
+    matchLabels:
+      app.kubernetes.io/component: prometheus
+      app.kubernetes.io/instance: k8s
+      app.kubernetes.io/name: prometheus
+      app.kubernetes.io/part-of: kube-prometheus
+  policyTypes:
+  - Egress
+  - Ingress

manifests/prometheusOperator-networkPolicy.yaml

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+apiVersion: networking.k8s.io/v1
+kind: NetworkPolicy
+metadata:
+  labels:
+    app.kubernetes.io/component: controller
+    app.kubernetes.io/name: prometheus-operator
+    app.kubernetes.io/part-of: kube-prometheus
+    app.kubernetes.io/version: 0.54.0
+  name: prometheus-operator
+  namespace: monitoring
+spec:
+  egress:
+  - {}
+  ingress:
+  - from:
+    - podSelector:
+        matchLabels:
+          app.kubernetes.io/name: prometheus
+    ports:
+    - port: 8443
+      protocol: TCP
+  podSelector:
+    matchLabels:
+      app.kubernetes.io/component: controller
+      app.kubernetes.io/name: prometheus-operator
+      app.kubernetes.io/part-of: kube-prometheus
+  policyTypes:
+  - Egress
+  - Ingress