scale down monitoring stack

monitoring/manifests/alertmanager-alertmanager.yaml

@@ -9,7 +9,7 @@ spec:
   baseImage: quay.io/prometheus/alertmanager
   nodeSelector:
     kubernetes.io/os: linux
-  replicas: 3
+  replicas: 1
   securityContext:
     fsGroup: 2000
     runAsNonRoot: true

monitoring/manifests/prometheus-prometheus.yaml

@@ -16,7 +16,7 @@ spec:
     kubernetes.io/os: linux
   podMonitorNamespaceSelector: {}
   podMonitorSelector: {}
-  replicas: 2
+  replicas: 1
   resources:
     requests:
       memory: 400Mi

monitoring/monitoring.jsonnet

@@ -13,6 +13,13 @@ local kp =
       versions+:: {
         pushgateway: 'v1.1.0',
       },
+      prometheus+:: {
+        names: 'k8s',
+        replicas: 1,
+      },
+      alertmanager+:: {
+        replicas: 1,
+      },
     },
   };