Added ruler_enabled and alertmanager_enabled flags.

cortex/alertmanager.libsonnet

@@ -5,7 +5,6 @@
   local statefulSet = $.apps.v1.statefulSet,
   local service = $.core.v1.service,
 
-
   alertmanager_args::
     {
       target: 'alertmanager',
@@ -18,32 +17,39 @@
     },
 
   alertmanager_pvc::
-    pvc.new() +
-    pvc.mixin.metadata.withName('alertmanager-data') +
-    pvc.mixin.spec.withAccessModes('ReadWriteOnce') +
-    pvc.mixin.spec.resources.withRequests({ storage: '100Gi' }),
+    if $._config.alertmanager_enabled then
+      pvc.new() +
+      pvc.mixin.metadata.withName('alertmanager-data') +
+      pvc.mixin.spec.withAccessModes('ReadWriteOnce') +
+      pvc.mixin.spec.resources.withRequests({ storage: '100Gi' })
+    else {},
 
   alertmanager_container::
-    container.new('alertmanager', $._images.alertmanager) +
-    container.withPorts($.util.defaultPorts) +
-    container.withArgsMixin($.util.mapToFlags($.alertmanager_args)) +
-    container.withVolumeMountsMixin([volumeMount.new('alertmanager-data', '/data')]) +
-    $.util.resourcesRequests('100m', '1Gi') +
-    $.util.readinessProbe +
-    $.jaeger_mixin,
-
+    if $._config.alertmanager_enabled then
+      container.new('alertmanager', $._images.alertmanager) +
+      container.withPorts($.util.defaultPorts) +
+      container.withArgsMixin($.util.mapToFlags($.alertmanager_args)) +
+      container.withVolumeMountsMixin([volumeMount.new('alertmanager-data', '/data')]) +
+      $.util.resourcesRequests('100m', '1Gi') +
+      $.util.readinessProbe +
+      $.jaeger_mixin
+    else {},
 
   alertmanager_statefulset:
-    statefulSet.new('alertmanager', 1, [$.alertmanager_container], $.alertmanager_pvc) +
-    statefulSet.mixin.spec.withServiceName('alertmanager') +
-    statefulSet.mixin.metadata.withNamespace($._config.namespace) +
-    statefulSet.mixin.metadata.withLabels({ name: 'alertmanager' }) +
-    statefulSet.mixin.spec.template.metadata.withLabels({ name: 'alertmanager' }) +
-    statefulSet.mixin.spec.selector.withMatchLabels({ name: 'alertmanager' }) +
-    statefulSet.mixin.spec.template.spec.securityContext.withRunAsUser(0) +
-    statefulSet.mixin.spec.updateStrategy.withType('RollingUpdate') +
-    statefulSet.mixin.spec.template.spec.withTerminationGracePeriodSeconds(900),
+    if $._config.alertmanager_enabled then
+      statefulSet.new('alertmanager', 1, [$.alertmanager_container], $.alertmanager_pvc) +
+      statefulSet.mixin.spec.withServiceName('alertmanager') +
+      statefulSet.mixin.metadata.withNamespace($._config.namespace) +
+      statefulSet.mixin.metadata.withLabels({ name: 'alertmanager' }) +
+      statefulSet.mixin.spec.template.metadata.withLabels({ name: 'alertmanager' }) +
+      statefulSet.mixin.spec.selector.withMatchLabels({ name: 'alertmanager' }) +
+      statefulSet.mixin.spec.template.spec.securityContext.withRunAsUser(0) +
+      statefulSet.mixin.spec.updateStrategy.withType('RollingUpdate') +
+      statefulSet.mixin.spec.template.spec.withTerminationGracePeriodSeconds(900)
+    else {},
 
   alertmanager_service:
-    $.util.serviceFor($.alertmanager_statefulset),
+    if $._config.alertmanager_enabled then
+      $.util.serviceFor($.alertmanager_statefulset)
+    else {},
 }

cortex/config.libsonnet

@@ -203,6 +203,7 @@
       'ring.heartbeat-timeout': '10m',
     },
 
+    ruler_enabled: false,
     ruler_client_type: error 'you must specify a storage backend type for the ruler (azure, configdb, gcs, s3)',
     // TODO: Generic client generating functions would be nice.
     ruler_s3_bucket_name: $._config.s3_bucket_name,
@@ -308,6 +309,8 @@
     schemaID: std.md5(std.toString($._config.schema)),
 
     enable_pod_priorities: true,
+
+    alertmanager_enabled: false,
   },
 
   local configMap = $.core.v1.configMap,

cortex/cortex.libsonnet

@@ -12,6 +12,7 @@
 (import 'query-frontend.libsonnet') +
 (import 'table-manager.libsonnet') +
 (import 'ruler.libsonnet') +
+(import 'alertmanager.libsonnet') +
 
 // Supporting services
 (import 'etcd.libsonnet') +

cortex/ruler.libsonnet

@@ -20,25 +20,31 @@
     },
 
   ruler_container::
-    container.new('ruler', $._images.ruler) +
-    container.withPorts($.util.defaultPorts) +
-    container.withArgsMixin($.util.mapToFlags($.ruler_args)) +
-    $.util.resourcesRequests('1', '6Gi') +
-    $.util.resourcesLimits('16', '16Gi') +
-    $.util.readinessProbe +
-    $.jaeger_mixin,
+    if $._config.ruler_enabled then
+      container.new('ruler', $._images.ruler) +
+      container.withPorts($.util.defaultPorts) +
+      container.withArgsMixin($.util.mapToFlags($.ruler_args)) +
+      $.util.resourcesRequests('1', '6Gi') +
+      $.util.resourcesLimits('16', '16Gi') +
+      $.util.readinessProbe +
+      $.jaeger_mixin
+    else {},
 
   local deployment = $.apps.v1.deployment,
 
   ruler_deployment:
-    deployment.new('ruler', 2, [$.ruler_container]) +
-    deployment.mixin.spec.template.spec.withTerminationGracePeriodSeconds(600) +
-    $.util.antiAffinity +
-    $.util.configVolumeMount('overrides', '/etc/cortex') +
-    $.storage_config_mixin,
+    if $._config.ruler_enabled then
+      deployment.new('ruler', 2, [$.ruler_container]) +
+      deployment.mixin.spec.template.spec.withTerminationGracePeriodSeconds(600) +
+      $.util.antiAffinity +
+      $.util.configVolumeMount('overrides', '/etc/cortex') +
+      $.storage_config_mixin
+    else {},
 
   local service = $.core.v1.service,
 
   ruler_service:
-    $.util.serviceFor($.ruler_deployment),
+    if $._config.ruler_enabled then
+      $.util.serviceFor($.ruler_deployment)
+    else {},
 }