Add option to fully disable the storage canary.

class/defaults.yml

@@ -164,6 +164,9 @@ parameters:
             tcp:
               preferred_ip_protocol: ip4
 
+    storage_canary:
+      enabled: ${openshift4_slos:slos:storage:canary:enabled}
+
     network_canary:
       enabled: ${openshift4_slos:slos:network:canary:enabled}
       namespace: appuio-network-canary
@@ -184,7 +187,6 @@ parameters:
           key: 'storagenode'
           operator: 'Exists'
 
-
     canary_scheduler_controller:
       enabled: true
       manifests_version: ${openshift4_slos:images:canary_scheduler_controller:tag}

component/main.jsonnet

@@ -199,7 +199,7 @@ local storageCanaries = std.flattenArrays(std.filterMap(
   '10_secrets': com.generateResources(params.secrets, function(name) com.namespaced(params.namespace, kube.Secret(name))),
   [if params.canary_scheduler_controller.enabled then '30_canaryImageStream']: canaryImageStream,
   [if params.canary_scheduler_controller.enabled then '30_canary']: canary,
-  [if params.canary_scheduler_controller.enabled then '32_storageCanary']: storageCanaries,
+  [if params.canary_scheduler_controller.enabled && params.storage_canary.enabled then '32_storageCanary']: storageCanaries,
 }
 + blackbox.deployment
 + blackbox.probes

docs/modules/ROOT/pages/references/parameters.adoc

@@ -596,6 +596,19 @@ kustomize_input:
 The input passed to the Kustomize renderer.
 See https://kubectl.docs.kubernetes.io/references/kustomize/kustomization/[The Kustomization File] for all available options.
 
+== `storage_canary`
+[horizontal]
+type:: dictionary
+
+`storage_canary` allows configuring the storage canary used for periodically performing storage operations for the storage SLO.
+
+=== `storage_canary.enabled`:
+[horizontal]
+type:: boolean
+default:: `${openshift4_slos:slos:storage:canary:enabled}`
+
+Whether the canary should be deployed.
+By default the component will deploy the canary if the storage canary SLO is enabled.
 
 == `network_canary`
 [horizontal]