diff --git a/samples/core/pipeline_transformers/pipeline_transformers.py b/samples/core/pipeline_transformers/pipeline_transformers.py
index 73a7aadddb..ca1481affe 100644
--- a/samples/core/pipeline_transformers/pipeline_transformers.py
+++ b/samples/core/pipeline_transformers/pipeline_transformers.py
@@ -17,18 +17,16 @@
 import kfp
 from kfp import dsl
 
-
-def random_failure_op(exit_codes):
-  """A component that fails randomly."""
+def print_op(msg):
+  """Print a message."""
   return dsl.ContainerOp(
-      name='random_failure',
-      image='python:alpine3.6',
-      command=['python', '-c'],
-      arguments=['import random; import sys; exit_code = random.choice(sys.argv[1].split(",")); print(exit_code); sys.exit(exit_code)', exit_codes]
+      name='Print',
+      image='alpine:3.6',
+      command=['echo', msg],
   )
 
-def add_retry(op):
-  op.set_retry(5)
+def add_annotation(op):
+  op.add_pod_annotation(name='hobby', value='football')
   return op
 
 @dsl.pipeline(
@@ -36,9 +34,9 @@ def add_retry(op):
     description='The pipeline includes two steps which fail randomly. It shows how to use ContainerOp(...).set_retry(...).'
 )
 def retry_sample_pipeline():
-  op1 = random_failure_op('0,1,2,3')
-  op2 = random_failure_op('0,1')
-  dsl.get_pipeline_conf().add_op_transformer(add_retry)
+  op1 = print_op('hey, what are you up to?')
+  op2 = print_op('train my model.')
+  dsl.get_pipeline_conf().add_op_transformer(add_annotation)
 
 if __name__ == '__main__':
   kfp.compiler.Compiler().compile(retry_sample_pipeline, __file__ + '.zip')
diff --git a/samples/core/resource_ops/resourceop_basic.py b/samples/core/resource_ops/resource_ops.py
similarity index 100%
rename from samples/core/resource_ops/resourceop_basic.py
rename to samples/core/resource_ops/resource_ops.py
diff --git a/samples/core/sidecar/sidecar.py b/samples/core/sidecar/sidecar.py
index 096ec47503..35665d2c11 100644
--- a/samples/core/sidecar/sidecar.py
+++ b/samples/core/sidecar/sidecar.py
@@ -20,7 +20,7 @@ import kfp.dsl as dsl
     name="pipeline_with_sidecar", 
     description="A pipeline that demonstrates how to add a sidecar to an operation."
 )
-def pipeline_with_sidecar(sleep_ms: int = 10):
+def pipeline_with_sidecar(sleep_sec: int = 30):
 
     # sidecar with sevice that reply "hello world" to any GET request
     echo = dsl.Sidecar(
@@ -35,7 +35,7 @@ def pipeline_with_sidecar(sleep_ms: int = 10):
         image="busybox:latest",
         command=["sh", "-c"],
         arguments=[
-            "sleep %s; wget localhost:5678 -O /tmp/results.txt" % sleep_ms
+            "sleep %s; wget localhost:5678 -O /tmp/results.txt" % sleep_sec
         ],  # sleep for X sec and call the sidecar and save results to output
         sidecars=[echo],
         file_outputs={"downloaded": "/tmp/results.txt"},
diff --git a/samples/core/volume_snapshot_ops/volume_snapshot_op.py b/samples/core/volume_snapshot_ops/volume_snapshot_ops.py
similarity index 100%
rename from samples/core/volume_snapshot_ops/volume_snapshot_op.py
rename to samples/core/volume_snapshot_ops/volume_snapshot_ops.py
diff --git a/test/sample_test.yaml b/test/sample_test.yaml
index c3af360094..f1949bb7ba 100644
--- a/test/sample_test.yaml
+++ b/test/sample_test.yaml
@@ -71,6 +71,9 @@ spec:
               - xgboost_training_cm
               - lightweight_component
               - dsl_static_type_checking
+              - pipeline_transformers
+              - secret
+              - sidecar
     # Build and push image
     - name: build-image-by-dockerfile
       inputs: