feat: remove cert-manager as dependency & support HTTP/HTTPs endpoints

CONTRIBUTING.md

@@ -11,16 +11,6 @@ Contributing
 
 ## Deploying to a Local Cluster for Testing Purposes
 
-Make sure your cluster has cert-manager running. If not, refer to https://cert-manager.io/docs/installation/.
-
-E.g.:
-
-```
-helm repo add jetstack https://charts.jetstack.io --force-update
-helm repo update
-helm install cert-manager jetstack/cert-manager --namespace cert-manager --create-namespace --version v1.14.5 --set installCRDs=true
-```
-
 This approach is suitable for deploying the operator to a cluster running locally on your machine, for example
 via the Kubernetes support included in Docker Desktop.
 

README.md

@@ -4,7 +4,7 @@
 [![Artifact Hub](https://img.shields.io/endpoint?url=https://artifacthub.io/badge/repository/dash0-operator)](https://artifacthub.io/packages/search?repo=dash0-operator)
 
 The Dash0 Kubernetes Operator makes observability for Kubernetes _easy_.
-Simply install the operator into your cluster to get OpenTelemetry data flowing from your applications and
+Install the operator into your cluster and create a Dash0 monitoring resource to get OpenTelemetry data flowing from your applications and
 infrastructure to Dash0.
 
 ## Description

api/dash0monitoring/v1alpha1/dash0monitoring_types.go

@@ -31,10 +31,9 @@ type Dash0MonitoringSpec struct {
 	// +kubebuilder:validation:Optional
 	AuthorizationToken string `json:"authorizationToken"`
 
-	// A reference to a Kubernetes secret containing the Dash0 authorization token. This property is optional, but either
-	// this property or the AuthorizationToken property has to be provided. If both are provided, the AuthorizationToken
-	// will be used and SecretRef will be ignored. The authorization token for your Dash0 organization can be copied
-	// from https://app.dash0.com/settings.
+	// A reference to a Kubernetes secret containing the Dash0 authorization token. This property is optional, and is
+	// ignored if the AuthorizationToken property is set. The authorization token for your Dash0 organization
+	// can be copied from https://app.dash0.com/settings.
 	//
 	// +kubebuilder:validation:Optional
 	SecretRef string `json:"secretRef"`

cmd/main.go

@@ -48,8 +48,6 @@ type environmentVariables struct {
 	collectorImagePullPolicy             corev1.PullPolicy
 	configurationReloaderImage           string
 	configurationReloaderImagePullPolicy corev1.PullPolicy
-	e2eTestMode                          bool
-	e2eTestExportDir                     string
 }
 
 const (
@@ -63,9 +61,7 @@ const (
 	configurationReloaderImageEnvVarName                = "DASH0_CONFIGURATION_RELOADER_IMAGE"
 	configurationReloaderImageImagePullPolicyEnvVarName = "DASH0_CONFIGURATION_RELOADER_IMAGE_PULL_POLICY"
 
-	developmentModeEnvVarName  = "DASH0_DEVELOPMENT_MODE"
-	e2eTestModeEnvVarName      = "DASH0_DEV_E2E_TEST_MODE"
-	e2eTestExportDirEnvVarName = "DASH0_DEV_E2E_TEST_EXPORT_DIR"
+	developmentModeEnvVarName = "DASH0_DEVELOPMENT_MODE"
 
 	//nolint
 	mandatoryEnvVarMissingMessageTemplate = "cannot start the Dash0 operator, the mandatory environment variable \"%s\" is missing"
@@ -231,13 +227,6 @@ func startOperatorManager(
 		"otel collector name prefix",
 		envVars.oTelCollectorNamePrefix,
 	)
-	if envVars.e2eTestMode {
-		setupLog.Info(
-			"!E2E test mode is active!",
-			"export dir",
-			envVars.e2eTestExportDir,
-		)
-	}
 
 	err = startDash0Controller(mgr, clientset, envVars)
 	if err != nil {
@@ -281,10 +270,6 @@ func startDash0Controller(mgr manager.Manager, clientset *kubernetes.Clientset,
 	oTelColResourceManager := &otelcolresources.OTelColResourceManager{
 		Client:                  mgr.GetClient(),
 		OTelCollectorNamePrefix: envVars.oTelCollectorNamePrefix,
-		E2eTestConfig: otelcolresources.E2eTestConfig{
-			Enabled:   envVars.e2eTestMode,
-			ExportDir: envVars.e2eTestExportDir,
-		},
 	}
 	backendConnectionManager := &backendconnection.BackendConnectionManager{
 		Client:                 mgr.GetClient(),
@@ -370,13 +355,6 @@ func readEnvironmentVariables() (*environmentVariables, error) {
 	configurationReloaderImagePullPolicy :=
 		readOptionalPullPolicyFromEnvironmentVariable(configurationReloaderImageImagePullPolicyEnvVarName)
 
-	e2eTestModeRaw, isSet := os.LookupEnv(e2eTestModeEnvVarName)
-	e2eTestMode := isSet && strings.ToLower(e2eTestModeRaw) == "true"
-	e2eTestExportDir := ""
-	if e2eTestMode {
-		e2eTestExportDir, _ = os.LookupEnv(e2eTestExportDirEnvVarName)
-	}
-
 	return &environmentVariables{
 		operatorNamespace:                    operatorNamespace,
 		oTelCollectorNamePrefix:              oTelCollectorNamePrefix,
@@ -387,8 +365,6 @@ func readEnvironmentVariables() (*environmentVariables, error) {
 		collectorImagePullPolicy:             collectorImagePullPolicy,
 		configurationReloaderImage:           configurationReloaderImage,
 		configurationReloaderImagePullPolicy: configurationReloaderImagePullPolicy,
-		e2eTestMode:                          e2eTestMode,
-		e2eTestExportDir:                     e2eTestExportDir,
 	}, nil
 }
 

config/crd/bases/operator.dash0.com_dash0monitorings.yaml

@@ -97,10 +97,9 @@ spec:
                 type: string
               secretRef:
                 description: |-
-                  A reference to a Kubernetes secret containing the Dash0 authorization token. This property is optional, but either
-                  this property or the AuthorizationToken property has to be provided. If both are provided, the AuthorizationToken
-                  will be used and SecretRef will be ignored. The authorization token for your Dash0 organization can be copied
-                  from https://app.dash0.com/settings.
+                  A reference to a Kubernetes secret containing the Dash0 authorization token. This property is optional, and is
+                  ignored if the AuthorizationToken property is set. The authorization token for your Dash0 organization
+                  can be copied from https://app.dash0.com/settings.
                 type: string
               uninstrumentWorkloadsOnDelete:
                 description: |-

helm-chart/dash0-operator/templates/_helpers.tpl

@@ -39,7 +39,7 @@ helm.sh/chart: {{ include "dash0-operator.chartNameWithVersion" . }}
 
 {{/* service account name */}}
 {{- define "dash0-operator.serviceAccountName" -}}
-{{- default (printf "%s-controller-manager" (include "dash0-operator.chartName" .)) .Values.operator.serviceAccount.name }}
+{{- default (printf "%s-controller" (include "dash0-operator.chartName" .)) .Values.operator.serviceAccount.name }}
 {{- end }}
 
 {{/* the controller manager container image */}}

helm-chart/dash0-operator/templates/operator/cluster-role-bindings.yaml

@@ -3,9 +3,9 @@ kind: ClusterRoleBinding
 metadata:
   name: {{ template "dash0-operator.chartName" . }}-manager-rolebinding
   labels:
-    app.kubernetes.io/name: clusterrolebinding
-    app.kubernetes.io/instance: manager-rolebinding
-    app.kubernetes.io/component: rbac
+    app.kubernetes.io/name: dash0-operator
+    app.kubernetes.io/component: controller
+    app.kubernetes.io/instance: role-binding
     {{- include "dash0-operator.labels" . | nindent 4 }}
 roleRef:
   apiGroup: rbac.authorization.k8s.io
@@ -21,9 +21,9 @@ kind: ClusterRoleBinding
 metadata:
   name: {{ template "dash0-operator.chartName" . }}-proxy-rolebinding
   labels:
-    app.kubernetes.io/name: clusterrolebinding
-    app.kubernetes.io/instance: proxy-rolebinding
-    app.kubernetes.io/component: kube-rbac-proxy
+    app.kubernetes.io/name: dash0-operator
+    app.kubernetes.io/component: proxy
+    app.kubernetes.io/instance: role-binding
     {{- include "dash0-operator.labels" . | nindent 4 }}
 roleRef:
   apiGroup: rbac.authorization.k8s.io

helm-chart/dash0-operator/templates/operator/cluster-roles.yaml

@@ -3,9 +3,9 @@ kind: ClusterRole
 metadata:
   name: {{ template "dash0-operator.chartName" . }}-manager-role
   labels:
-    app.kubernetes.io/name: clusterrole
+    app.kubernetes.io/name: dash0-operator
+    app.kubernetes.io/component: controller
     app.kubernetes.io/instance: manager-role
-    app.kubernetes.io/component: kube-rbac-proxy
     {{- include "dash0-operator.labels" . | nindent 4 }}
 
 rules:
@@ -179,9 +179,9 @@ kind: ClusterRole
 metadata:
   name: {{ template "dash0-operator.chartName" . }}-metrics-reader
   labels:
-    app.kubernetes.io/name: clusterrole
-    app.kubernetes.io/instance: metrics-reader
-    app.kubernetes.io/component: kube-rbac-proxy
+    app.kubernetes.io/name: dash0-operator
+    app.kubernetes.io/component: controller
+    app.kubernetes.io/instance: metrics-role
     {{- include "dash0-operator.labels" . | nindent 4 }}
 rules:
 - nonResourceURLs:
@@ -194,9 +194,9 @@ kind: ClusterRole
 metadata:
   name: {{ template "dash0-operator.chartName" . }}-proxy-role
   labels:
-    app.kubernetes.io/name: clusterrole
+    app.kubernetes.io/name: dash0-operator
+    app.kubernetes.io/component: controller
     app.kubernetes.io/instance: proxy-role
-    app.kubernetes.io/component: kube-rbac-proxy
     {{- include "dash0-operator.labels" . | nindent 4 }}
 rules:
 - apiGroups:

helm-chart/dash0-operator/templates/operator/custom-resource-definition-dash0.yaml

@@ -2,7 +2,6 @@ apiVersion: apiextensions.k8s.io/v1
 kind: CustomResourceDefinition
 metadata:
   annotations:
-    cert-manager.io/inject-ca-from: {{ .Release.Namespace }}/{{ template "dash0-operator.chartName" . }}-serving-cert
     controller-gen.kubebuilder.io/version: v0.14.0
   name: dash0monitorings.operator.dash0.com
 spec: