diff --git a/.changeset/PR-80.md b/.changeset/PR-80.md
new file mode 100644
index 0000000..bb1035c
--- /dev/null
+++ b/.changeset/PR-80.md
@@ -0,0 +1,5 @@
+---
+"helm-charts": patch
+---
+
+feat: support set replica and resources for otel-collector
diff --git a/charts/hdx-oss-v2/templates/otel-collector-deployment.yaml b/charts/hdx-oss-v2/templates/otel-collector-deployment.yaml
index f527512..1fd743a 100644
--- a/charts/hdx-oss-v2/templates/otel-collector-deployment.yaml
+++ b/charts/hdx-oss-v2/templates/otel-collector-deployment.yaml
@@ -7,7 +7,7 @@ metadata:
     {{- include "hdx-oss.labels" . | nindent 4 }}
     app: otel-collector
 spec:
-  replicas: 1
+  replicas: {{ .Values.otel.replicas | default 1 }}
   selector:
     matchLabels:
       {{- include "hdx-oss.selectorLabels" . | nindent 6 }}
@@ -17,6 +17,12 @@ spec:
       labels:
         {{- include "hdx-oss.selectorLabels" . | nindent 8 }}
         app: otel-collector
+      annotations:
+      {{- if .Values.otel.annotations }}
+        {{- with .Values.otel.annotations }}
+        {{- toYaml . | nindent 8 }}
+        {{- end -}}
+      {{- end }}
     spec:
       {{- if .Values.otel.nodeSelector }}
       nodeSelector:
@@ -36,6 +42,10 @@ spec:
             - containerPort: {{ .Values.otel.grpcPort }}
             - containerPort: {{ .Values.otel.httpPort }}
             - containerPort: {{ .Values.otel.healthPort }}
+          {{- if .Values.otel.resources }}
+          resources:
+            {{- toYaml .Values.otel.resources | nindent 12 }}
+          {{- end }}
           env:
             - name: CLICKHOUSE_ENDPOINT
               value: "{{ .Values.otel.clickhouseEndpoint | default (printf "tcp://%s-clickhouse:%v?dial_timeout=10s" (include "hdx-oss.fullname" .) .Values.clickhouse.nativePort) }}"
diff --git a/charts/hdx-oss-v2/tests/otel-collector_test.yaml b/charts/hdx-oss-v2/tests/otel-collector_test.yaml
index 3ed2d31..a85febf 100644
--- a/charts/hdx-oss-v2/tests/otel-collector_test.yaml
+++ b/charts/hdx-oss-v2/tests/otel-collector_test.yaml
@@ -23,7 +23,7 @@ tests:
       - documentIndex: 1
         isKind:
           of: Service
-          
+
   - it: should not render otel collector when disabled
     set:
       otel:
@@ -513,3 +513,176 @@ tests:
           path: spec.template.spec.containers[0].env
           content:
             name: CUSTOM_VAR
+
+  - it: should use default replica count 1 when not specified
+    set:
+      otel:
+        enabled: true
+        image:
+          repository: hyperdx/hyperdx-otel-collector
+          tag: 2-beta
+    asserts:
+      - documentIndex: 0
+        isKind:
+          of: Deployment
+      - documentIndex: 0
+        equal:
+          path: spec.replicas
+          value: 1
+
+  - it: should use custom replica count when specified
+    set:
+      otel:
+        enabled: true
+        replicas: 5
+        image:
+          repository: hyperdx/hyperdx-otel-collector
+          tag: 2-beta
+    asserts:
+      - documentIndex: 0
+        isKind:
+          of: Deployment
+      - documentIndex: 0
+        equal:
+          path: spec.replicas
+          value: 5
+
+  - it: should not render resources when not specified
+    set:
+      otel:
+        enabled: true
+        image:
+          repository: hyperdx/hyperdx-otel-collector
+          tag: 2-beta
+    asserts:
+      - documentIndex: 0
+        isKind:
+          of: Deployment
+      - documentIndex: 0
+        isNull:
+          path: spec.template.spec.containers[0].resources
+
+  - it: should render resources when specified
+    set:
+      otel:
+        enabled: true
+        image:
+          repository: hyperdx/hyperdx-otel-collector
+          tag: 2-beta
+        resources:
+          limits:
+            memory: "512Mi"
+            cpu: "500m"
+          requests:
+            memory: "256Mi"
+            cpu: "250m"
+    asserts:
+      - documentIndex: 0
+        isKind:
+          of: Deployment
+      - documentIndex: 0
+        equal:
+          path: spec.template.spec.containers[0].resources
+          value:
+            limits:
+              memory: "512Mi"
+              cpu: "500m"
+            requests:
+              memory: "256Mi"
+              cpu: "250m"
+
+  - it: should render only limits when requests not specified
+    set:
+      otel:
+        enabled: true
+        image:
+          repository: hyperdx/hyperdx-otel-collector
+          tag: 2-beta
+        resources:
+          limits:
+            memory: "1Gi"
+            cpu: "1000m"
+    asserts:
+      - documentIndex: 0
+        isKind:
+          of: Deployment
+      - documentIndex: 0
+        equal:
+          path: spec.template.spec.containers[0].resources
+          value:
+            limits:
+              memory: "1Gi"
+              cpu: "1000m"
+
+  - it: should render only requests when limits not specified
+    set:
+      otel:
+        enabled: true
+        image:
+          repository: hyperdx/hyperdx-otel-collector
+          tag: 2-beta
+        resources:
+          requests:
+            memory: "128Mi"
+            cpu: "100m"
+    asserts:
+      - documentIndex: 0
+        isKind:
+          of: Deployment
+      - documentIndex: 0
+        equal:
+          path: spec.template.spec.containers[0].resources
+          value:
+            requests:
+              memory: "128Mi"
+              cpu: "100m"
+
+  - it: should render annotations when specified
+    set:
+      otel:
+        enabled: true
+        image:
+          repository: hyperdx/hyperdx-otel-collector
+          tag: 2-beta
+        annotations:
+          prometheus.io/scrape: "true"
+          prometheus.io/port: "8888"
+          prometheus.io/path: "/metrics"
+    asserts:
+      - documentIndex: 0
+        isKind:
+          of: Deployment
+      - documentIndex: 0
+        equal:
+          path: spec.template.metadata.annotations
+          value:
+            prometheus.io/scrape: "true"
+            prometheus.io/port: "8888"
+            prometheus.io/path: "/metrics"
+
+  - it: should render multiple annotations correctly
+    set:
+      otel:
+        enabled: true
+        image:
+          repository: hyperdx/hyperdx-otel-collector
+          tag: 2-beta
+        annotations:
+          prometheus.io/scrape: "true"
+          prometheus.io/port: "8888"
+          checksum/config: "abcdef1234567890"
+          deployment.kubernetes.io/revision: "1"
+          sidecar.istio.io/inject: "false"
+    asserts:
+      - documentIndex: 0
+        isKind:
+          of: Deployment
+      - documentIndex: 0
+        isSubset:
+          path: spec.template.metadata.annotations
+          content:
+            prometheus.io/scrape: "true"
+            prometheus.io/port: "8888"
+            checksum/config: "abcdef1234567890"
+            deployment.kubernetes.io/revision: "1"
+            sidecar.istio.io/inject: "false"
diff --git a/charts/hdx-oss-v2/values.yaml b/charts/hdx-oss-v2/values.yaml
index c2c9858..f09e51d 100644
--- a/charts/hdx-oss-v2/values.yaml
+++ b/charts/hdx-oss-v2/values.yaml
@@ -29,12 +29,12 @@ hyperdx:
   # Endpoint to send hyperdx logs/traces/metrics to.Defaults to the chart's otel collector endpoint.
   otelExporterEndpoint: http://{{ include "hdx-oss.fullname" . }}-otel-collector:{{ .Values.otel.httpPort }}
   mongoUri: mongodb://{{ include "hdx-oss.fullname" . }}-mongodb:{{ .Values.mongodb.port }}/hyperdx
-  
+
   # Pod-level annotations (applied to the deployment pods)
   annotations: {}
     # myAnnotation: "myValue"
-  
-  # Pod-level labels (applied to the deployment pods)  
+
+  # Pod-level labels (applied to the deployment pods)
   labels: {}
     # myLabel: "myValue"
   env: []
@@ -238,7 +238,7 @@ clickhouse:
     #   operator: "Equal"
     #   value: "value1"
     #   effect: "NoSchedule"
-    
+
   # Service configuration
   service:
     type: ClusterIP  # Use ClusterIP for security. For external access, use ingress with proper TLS and authentication
@@ -275,6 +275,18 @@ otel:
     repository: docker.hyperdx.io/hyperdx/hyperdx-otel-collector
     tag:
     pullPolicy: IfNotPresent
+  replicas: 1
+  resources: {}
+    # Example:
+    # requests:
+    #   memory: "127Mi"
+    #   cpu: "100m"
+    # limits:
+    #   memory: "256Mi"
+    #   cpu: "200m"
+  # Pod-level annotations (applied to the deployment pods)
+  annotations: {}
+    # myAnnotation: "myValue"
   # Add nodeSelector and tolerations for otel-collector service
   nodeSelector: {}
     # Example: