Add ruler limits

Sets default presets for for all the 'users' when it comes to ruler
limits.

Author: gotjosh

CHANGELOG.md

@@ -2,6 +2,7 @@
 
 ## master / unreleased
 
+* [CHANGE] Add default present for ruler limits on all 'user' types.
 * [CHANGE] Add the default preset 'extra_small_user' and reference it in the CLI flags. This will raise the limits of the 'small_user' preset to the defaults for `ingester.max-samples-per-query` and `ingester.max-series-per-query`. #200
 * [ENHANCEMENT] Add the Ruler to the read resources dashboard #205
 * [ENHANCEMENT] Read dashboards now use `cortex_querier_request_duration_seconds` metrics to allow for accurate dashboards when deploying Cortex as a single-binary. #199

cortex/config.libsonnet

@@ -294,6 +294,10 @@
 
         ingestion_rate: 10000,
         ingestion_burst_size: 200000,
+
+        // 300 rules
+        max_rules_per_rule_group: 15,
+        max_rule_groups_per_tenant: 20,
       },
 
       small_user:: {
@@ -308,6 +312,10 @@
 
         ingestion_rate: 100000,
         ingestion_burst_size: 1000000,
+
+        // 450 rules
+        max_rules_per_rule_group: 15,
+        max_rule_groups_per_tenant: 30,
       },
 
       medium_user:: {
@@ -322,6 +330,10 @@
 
         ingestion_rate: 350000,  // 350K
         ingestion_burst_size: 3500000,  // 3.5M
+
+        // 600 rules
+        max_rules_per_rule_group: 15,
+        max_rule_groups_per_tenant: 40,
       },
 
       big_user:: {
@@ -336,6 +348,10 @@
 
         ingestion_rate: 700000,  // 700K
         ingestion_burst_size: 7000000,  // 7M
+
+        // 750 rules
+        max_rules_per_rule_group: 15,
+        max_rule_groups_per_tenant: 50,
       },
 
       super_user:: {
@@ -350,6 +366,10 @@
 
         ingestion_rate: 1500000,  // 1.5M
         ingestion_burst_size: 15000000,  // 15M
+
+        // 900 rules
+        max_rules_per_rule_group: 15,
+        max_rule_groups_per_tenant: 60,
       },
 
       // This user class has limits increased by +50% compared to the previous one.
@@ -365,6 +385,9 @@
 
         ingestion_rate: 2250000,  // 2.25M
         ingestion_burst_size: 22500000,  // 22.5M
+
+        max_rules_per_rule_group: 15,
+        max_rule_groups_per_tenant: 70,
       },
     },
 

cortex/ruler.libsonnet

@@ -18,6 +18,10 @@
       // Ring Configs
       'ruler.enable-sharding': true,
       'ruler.ring.consul.hostname': 'consul.%s.svc.cluster.local:8500' % $._config.namespace,
+
+      // Limits
+      'ruler.max-rules-per-rule-group': $._config.limits.max_rules_per_rule_group,
+      'ruler.max-rule-groups-per-tenant': $._config.limits.max_rule_groups_per_tenant,
     },
 
   ruler_container::