diff --git a/clusterloader2/testing/huge-service/modules/service.yaml b/clusterloader2/testing/huge-service/modules/service.yaml
index 7b54d50cca..62b9ad0b94 100644
--- a/clusterloader2/testing/huge-service/modules/service.yaml
+++ b/clusterloader2/testing/huge-service/modules/service.yaml
@@ -41,6 +41,7 @@ steps:
       objectTemplatePath: simple-deployment.yaml
       templateFillMap:
         Replicas: {{$endpoints}}
+        EnvVar: a
         Group: huge-service
         CpuRequest: 1m
         MemoryRequest: 10M
@@ -51,6 +52,29 @@ steps:
     Method: WaitForControlledPodsRunning
     Params:
       action: gather
+- name: Updating {{$serviceName}} pods
+  phases:
+  - namespaceRange:
+      min: 1
+      max: 1
+    replicasPerNamespace: 1
+    tuningSet: Sequence
+    objectBundle:
+    - basename: huge-service-deployment
+      objectTemplatePath: simple-deployment.yaml
+      templateFillMap:
+        Replicas: {{$endpoints}}
+        EnvVar: b
+        Group: huge-service
+        CpuRequest: 1m
+        MemoryRequest: 10M
+        SvcName: {{$serviceName}}
+- name: Waiting for {{$serviceName}} pods to be updated
+  measurements:
+  - Identifier: WaitForHugeServiceDeployments
+    Method: WaitForControlledPodsRunning
+    Params:
+      action: gather
 - name: Deleting {{$serviceName}} pods
   phases:
   - namespaceRange:
diff --git a/clusterloader2/testing/load/simple-deployment.yaml b/clusterloader2/testing/load/simple-deployment.yaml
index d54eb5a425..f82bd04c5b 100644
--- a/clusterloader2/testing/load/simple-deployment.yaml
+++ b/clusterloader2/testing/load/simple-deployment.yaml
@@ -2,6 +2,7 @@
 # Keep the CpuRequest/MemoryRequest request equal percentage of 1-core, 4GB node.
 # For now we're setting it to 0.5%.
 {{$CpuRequest := DefaultParam .CpuRequest "5m"}}
+{{$EnvVar := DefaultParam .EnvVar "a"}}
 {{$MemoryRequest := DefaultParam .MemoryRequest "20M"}}
 {{$Image := DefaultParam .Image "k8s.gcr.io/pause:3.1"}}
 {{$RUN_ON_ARM_NODES := DefaultParam .CL2_RUN_ON_ARM_NODES false}}
@@ -28,7 +29,10 @@ spec:
     spec:
       hostNetwork: {{$HostNetworkMode}}
       containers:
-      - image: {{$Image}}
+      - env:
+        - name: ENV_VAR
+          value: {{$EnvVar}}
+        image: {{$Image}}
         imagePullPolicy: IfNotPresent
         name: {{.Name}}
         ports: