feat(thanos): remove ruler

cluster/components/observability/thanos/values.yaml

@@ -79,31 +79,7 @@ storegateway:
       cpu: null
       memory: 768Mi
 ruler:
-  enabled: true # default is false
+  enabled: false
-  replicaCount: 3
-  priorityClassName: lsh-system-critical
-  podAntiAffinityPreset: hard
-  dnsDiscovery:
-    enabled: true # default is true
-  alertmanagers:
-    - http://kube-prometheus-stack-alertmanager.libresh-system:9093
-  ## @param ruler.clusterName Used to set the 'ruler_cluster' label
-  clusterName: ${CLUSTER_NAME} # TODO check if that should be set 
-  # TODO check if we need it
-  extraFlags:
-    - "--web.prefix-header=X-Forwarded-Prefix"
-  # TODO check if we need it
-  config: |-
-    groups:
-      - name: "PrometheusWatcher"
-        rules:
-          - alert: "PrometheusDown"
-            expr: absent(up{job="kube-prometheus-stack-prometheus"})
-  ingress:
-    enabled: false
-    # hostname: "thanos-ruler.${CLUSTER_DOMAIN}"
-    # ingressClassName: "nginx"
-    # tls: true
 metrics:
   enabled: true
   serviceMonitor: