Add more configs in otel agent gateway

Author: songy23

api/datadoghq/v2alpha1/datadogagent_types.go

@@ -1055,6 +1055,39 @@ type OtelAgentGatewayFeatureConfig struct {
 	// +doc-gen:link=https://kubernetes.io/docs/concepts/scheduling-eviction/assign-pod-node/#affinity-and-anti-affinity
 	// +optional
 	Affinity *corev1.Affinity `json:"affinity,omitempty"`
+
+	// Configure the component tolerations.
+	// +doc-gen:link=https://kubernetes.io/docs/concepts/scheduling-eviction/taint-and-toleration/
+	// +optional
+	// +listType=atomic
+	Tolerations []corev1.Toleration `json:"tolerations,omitempty"`
+
+	// If specified, indicates the pod's priority. "system-node-critical" and "system-cluster-critical"
+	// are two special keywords which indicate the highest priorities with the former being the highest priority.
+	// Any other name must be defined by creating a PriorityClass object with that name. If not specified,
+	// the pod priority is default, or zero if there is no default.
+	// +optional
+	PriorityClassName *string `json:"priorityClassName,omitempty"`
+
+	// Specify additional environment variables for the otel-agent container.
+	// +optional
+	// +listType=map
+	// +listMapKey=name
+	Env []corev1.EnvVar `json:"env,omitempty"`
+
+	// Specify additional environment variables from ConfigMaps or Secrets.
+	// +optional
+	// +listType=atomic
+	EnvFrom []corev1.EnvFromSource `json:"envFrom,omitempty"`
+
+	// Image configuration for the OTel Agent Gateway container.
+	// +optional
+	Image *AgentImageConfig `json:"image,omitempty"`
+
+	// FeatureGates to pass to the OTel collector as a comma-separated list.
+	// Example: "component.UseLocalHostAsDefaultHost,connector.datadogconnector.NativeIngest"
+	// +optional
+	FeatureGates *string `json:"featureGates,omitempty"`
 }
 
 // ControlPlaneMonitoringFeatureConfig contains the configuration for the control plane monitoring.