Caching: Implement mtls-enabled memcached integration (#84171)

* fix merge

* fix conflicts

* updating generated feature toggle code

* Fix go mod owner

* fix merge

* add dependency

* fix dependencies

* workspace sync

* go get

* work sync

* trying something

* fix

* add docs for tls config

* work sync

* adjust go mod

* try something

* move import to the correct file

---------

Co-authored-by: Michael Mandrus <michael.mandrus@grafana.com>

pkg/extensions/main.go

@@ -18,6 +18,7 @@ import (
 	_ "github.com/grafana/dskit/backoff"
 	_ "github.com/grafana/dskit/flagext"
 	_ "github.com/grafana/gofpdf"
+	_ "github.com/grafana/gomemcache/memcache"
 	_ "github.com/grpc-ecosystem/go-grpc-middleware/providers/prometheus"
 	_ "github.com/grpc-ecosystem/go-grpc-middleware/v2"
 	_ "github.com/hashicorp/go-multierror"

pkg/services/featuremgmt/registry.go

@@ -1105,6 +1105,13 @@ var (
 			Stage:       FeatureStagePublicPreview,
 			Owner:       grafanaSharingSquad,
 		},
+		{
+			Name:         "tlsMemcached",
+			Description:  "Use TLS-enabled memcached in the enterprise caching feature",
+			Stage:        FeatureStageExperimental,
+			Owner:        grafanaOperatorExperienceSquad,
+			HideFromDocs: true,
+		},
 		{
 			Name:            "kubernetesAggregator",
 			Description:     "Enable grafana aggregator",

pkg/services/featuremgmt/toggles_gen.csv

@@ -148,6 +148,7 @@ sqlExpressions,experimental,@grafana/grafana-app-platform-squad,false,false,fals
 nodeGraphDotLayout,experimental,@grafana/observability-traces-and-profiling,false,false,true
 groupToNestedTableTransformation,preview,@grafana/dataviz-squad,false,false,true
 newPDFRendering,preview,@grafana/sharing-squad,false,false,false
+tlsMemcached,experimental,@grafana/grafana-operator-experience-squad,false,false,false
 kubernetesAggregator,experimental,@grafana/grafana-app-platform-squad,false,true,false
 expressionParser,experimental,@grafana/grafana-app-platform-squad,false,true,false
 groupByVariable,experimental,@grafana/dashboards-squad,false,false,false

pkg/services/featuremgmt/toggles_gen.go

@@ -603,6 +603,10 @@ const (
 	// New implementation for the dashboard-to-PDF rendering
 	FlagNewPDFRendering = "newPDFRendering"
 
+	// FlagTlsMemcached
+	// Use TLS-enabled memcached in the enterprise caching feature
+	FlagTlsMemcached = "tlsMemcached"
+
 	// FlagKubernetesAggregator
 	// Enable grafana aggregator
 	FlagKubernetesAggregator = "kubernetesAggregator"

pkg/services/featuremgmt/toggles_gen.json

@@ -2149,6 +2149,20 @@
         "codeowner": "@grafana/sharing-squad",
         "frontend": true
       }
+    },
+    {
+      "metadata": {
+        "name": "tlsMemcached",
+        "resourceVersion": "1715012300933",
+        "creationTimestamp": "2024-05-06T16:18:20Z",
+        "deletionTimestamp": "2024-05-06T16:20:46Z"
+      },
+      "spec": {
+        "description": "Use TLS-enabled memcached in the enterprise caching feature",
+        "stage": "experimental",
+        "codeowner": "@grafana/grafana-operator-experience-squad",
+        "hideFromDocs": true
+      }
     }
   ]
-}
+}