feat(api,kcl): added envoyCfg.PodSecurityContext

RHOS requires setting some fields which needed
propagation.

api/v1beta1/kafkacluster_types.go

@@ -361,6 +361,10 @@ type EnvoyConfig struct {
 	// EnableHealthCheckHttp10 is a toggle for adding HTTP1.0 support to Envoy health-check, default false
 	// +optional
 	EnableHealthCheckHttp10 bool `json:"enableHealthCheckHttp10,omitempty"`
+
+	// PodSecurityContext holds pod-level security attributes and common container
+	// settings for the Envoy pods.
+	PodSecurityContext *corev1.PodSecurityContext `json:"podSecurityContext,omitempty"`
 }
 
 // EnvoyCommandLineArgs defines envoy command line arguments
@@ -850,6 +854,15 @@ func (eConfig *EnvoyConfig) GetTopologySpreadConstaints() []corev1.TopologySprea
 	return eConfig.TopologySpreadConstraints
 }
 
+// GetPodSecurityContext returns the security context for the envoy deployment podspec.
+func (eConfig *EnvoyConfig) GetPodSecurityContext() *corev1.PodSecurityContext {
+	if eConfig == nil {
+		return nil
+	}
+
+	return eConfig.PodSecurityContext
+}
+
 // GetPriorityClassName returns the priority class name for envoy
 func (eConfig *EnvoyConfig) GetPriorityClassName() string {
 	return eConfig.PriorityClassName