[SDK] Relax k8s sanitization

samples/core/loop_static/loop_static.py

@@ -18,20 +18,20 @@
 
 @dsl.pipeline(name='my-pipeline')
 def pipeline(my_pipe_param=10):
-    loop_args = [{'a': 1, 'b': 2}, {'a': 10, 'b': 20}]
+    loop_args = [{'A_a': 1, 'B_b': 2}, {'A_a': 10, 'B_b': 20}]
     with dsl.ParallelFor(loop_args) as item:
         op1 = dsl.ContainerOp(
             name="my-in-coop1",
             image="library/bash:4.4.23",
             command=["sh", "-c"],
-            arguments=["echo op1 %s %s" % (item.a, my_pipe_param)],
+            arguments=["echo op1 %s %s" % (item.A_a, my_pipe_param)],
         )
 
         op2 = dsl.ContainerOp(
             name="my-in-coop2",
             image="library/bash:4.4.23",
             command=["sh", "-c"],
-            arguments=["echo op2 %s" % item.b],
+            arguments=["echo op2 %s" % item.B_b],
         )
 
     op_out = dsl.ContainerOp(

samples/core/volume_ops/volume_ops.py

@@ -22,7 +22,7 @@
 )
 def volumeop_basic(size):
     vop = dsl.VolumeOp(
-        name="create_pvc",
+        name="create-pvc",
         resource_name="my-pvc",
         modes=dsl.VOLUME_MODE_RWO,
         size=size

sdk/python/kfp/_client.py

@@ -308,8 +308,9 @@ def run_pipeline(self, experiment_id, job_name, pipeline_package_path=None, para
     if pipeline_package_path:
       pipeline_obj = self._extract_pipeline_yaml(pipeline_package_path)
       pipeline_json_string = json.dumps(pipeline_obj)
-    api_params = [kfp_server_api.ApiParameter(name=sanitize_k8s_name(k), value=str(v))
-                  for k,v in params.items()]
+    api_params = [kfp_server_api.ApiParameter(
+        name=sanitize_k8s_name(name=k, allow_capital_underscore=True),
+        value=str(v)) for k,v in params.items()]
     key = kfp_server_api.models.ApiResourceKey(id=experiment_id,
                                         type=kfp_server_api.models.ApiResourceType.EXPERIMENT)
     reference = kfp_server_api.models.ApiResourceReference(key, kfp_server_api.models.ApiRelationship.OWNER)

sdk/python/kfp/compiler/_k8s_helper.py

@@ -17,11 +17,22 @@
 from .. import dsl
 
 
-def sanitize_k8s_name(name):
+def sanitize_k8s_name(name, allow_capital_underscore=False):
     """From _make_kubernetes_name
       sanitize_k8s_name cleans and converts the names in the workflow.
+
+    Args:
+      name: original name,
+      allow_capital_underscore: whether to allow capital letter and underscore
+        in this name.
+
+    Returns:
+      sanitized name.
     """
-    return re.sub('-+', '-', re.sub('[^-0-9a-z]+', '-', name.lower())).lstrip('-').rstrip('-')
+    if allow_capital_underscore:
+      return re.sub('-+', '-', re.sub('[^-_0-9A-Za-z]+', '-', name)).lstrip('-').rstrip('-')
+    else:
+      return re.sub('-+', '-', re.sub('[^-0-9a-z]+', '-', name.lower())).lstrip('-').rstrip('-')
 
 
 def convert_k8s_obj_to_json(k8s_obj):

sdk/python/kfp/compiler/compiler.py

@@ -494,7 +494,7 @@ def _group_to_dag_template(self, group, inputs, outputs, dependencies):
             for argument_set in loop_tasks:
               c_dict = {}
               for k, v in argument_set.items():
-                c_dict[sanitize_k8s_name(k)] = v
+                c_dict[sanitize_k8s_name(k, True)] = v
               sanitized_tasks.append(c_dict)
           else:
             sanitized_tasks = loop_tasks
@@ -698,23 +698,23 @@ def _sanitize_and_inject_artifact(self, pipeline: dsl.Pipeline, pipeline_conf=No
       sanitized_name = sanitize_k8s_name(op.name)
       op.name = sanitized_name
       for param in op.outputs.values():
-        param.name = sanitize_k8s_name(param.name)
+        param.name = sanitize_k8s_name(param.name, True)
         if param.op_name:
           param.op_name = sanitize_k8s_name(param.op_name)
       if op.output is not None and not isinstance(op.output, dsl._container_op._MultipleOutputsError):
-        op.output.name = sanitize_k8s_name(op.output.name)
+        op.output.name = sanitize_k8s_name(op.output.name, True)
         op.output.op_name = sanitize_k8s_name(op.output.op_name)
       if op.dependent_names:
         op.dependent_names = [sanitize_k8s_name(name) for name in op.dependent_names]
       if isinstance(op, dsl.ContainerOp) and op.file_outputs is not None:
         sanitized_file_outputs = {}
         for key in op.file_outputs.keys():
-          sanitized_file_outputs[sanitize_k8s_name(key)] = op.file_outputs[key]
+          sanitized_file_outputs[sanitize_k8s_name(key, True)] = op.file_outputs[key]
         op.file_outputs = sanitized_file_outputs
       elif isinstance(op, dsl.ResourceOp) and op.attribute_outputs is not None:
         sanitized_attribute_outputs = {}
         for key in op.attribute_outputs.keys():
-          sanitized_attribute_outputs[sanitize_k8s_name(key)] = \
+          sanitized_attribute_outputs[sanitize_k8s_name(key, True)] = \
             op.attribute_outputs[key]
         op.attribute_outputs = sanitized_attribute_outputs
       sanitized_ops[sanitized_name] = op
@@ -757,7 +757,7 @@ def _create_workflow(self,
         if arg_name == input.name:
           arg_type = input.type
           break
-      args_list.append(dsl.PipelineParam(sanitize_k8s_name(arg_name), param_type=arg_type))
+      args_list.append(dsl.PipelineParam(sanitize_k8s_name(arg_name, True), param_type=arg_type))
 
     with dsl.Pipeline(pipeline_name) as dsl_pipeline:
       pipeline_func(*args_list)
@@ -770,7 +770,7 @@ def _create_workflow(self,
     # Fill in the default values.
     args_list_with_defaults = []
     if pipeline_meta.inputs:
-      args_list_with_defaults = [dsl.PipelineParam(sanitize_k8s_name(arg_name))
+      args_list_with_defaults = [dsl.PipelineParam(sanitize_k8s_name(arg_name, True))
                                  for arg_name in argspec.args]
       if argspec.defaults:
         for arg, default in zip(reversed(args_list_with_defaults), reversed(argspec.defaults)):

sdk/python/kfp/dsl/_pipeline_param.py

@@ -22,10 +22,21 @@
 PipelineParamTuple = namedtuple('PipelineParamTuple', 'name op pattern')
 
 
-def sanitize_k8s_name(name):
-    """From _make_kubernetes_name
-      sanitize_k8s_name cleans and converts the names in the workflow.
-    """
+def sanitize_k8s_name(name, allow_capital_underscore=False):
+  """From _make_kubernetes_name
+    sanitize_k8s_name cleans and converts the names in the workflow.
+
+  Args:
+    name: original name,
+    allow_capital_underscore: whether to allow capital letter and underscore
+      in this name.
+
+  Returns:
+    sanitized name.
+  """
+  if allow_capital_underscore:
+    return re.sub('-+', '-', re.sub('[^-_0-9A-Za-z]+', '-', name)).lstrip('-').rstrip('-')
+  else:
     return re.sub('-+', '-', re.sub('[^-0-9a-z]+', '-', name.lower())).lstrip('-').rstrip('-')
 
 
@@ -42,7 +53,7 @@ def match_serialized_pipelineparam(payload: str):
   for match in matches:
       pattern = '{{pipelineparam:op=%s;name=%s}}' % (match[0], match[1])
       param_tuples.append(PipelineParamTuple(
-                          name=sanitize_k8s_name(match[1]), 
+                          name=sanitize_k8s_name(match[1], True),
                           op=sanitize_k8s_name(match[0]), 
                           pattern=pattern))
   return param_tuples

sdk/python/tests/compiler/testdata/pipelineparams.yaml

@@ -25,18 +25,18 @@ spec:
     parameters:
     - name: tag
       value: latest
-    - name: sleep-ms
+    - name: sleep_ms
       value: '10'
   templates:
   - name: download
     inputs:
       parameters:
-      - name: sleep-ms
+      - name: sleep_ms
       - name: tag
     container:
       image: busybox:{{inputs.parameters.tag}}
       args:
-      - sleep {{inputs.parameters.sleep-ms}}; wget localhost:5678 -O /tmp/results.txt
+      - sleep {{inputs.parameters.sleep_ms}}; wget localhost:5678 -O /tmp/results.txt
       command:
       - sh
       - "-c"
@@ -70,15 +70,15 @@ spec:
   - name: pipelineparams
     inputs:
       parameters:
-      - name: sleep-ms
+      - name: sleep_ms
       - name: tag
     dag:
       tasks:
       - name: download
         arguments:
           parameters:
-          - name: sleep-ms
-            value: "{{inputs.parameters.sleep-ms}}"
+          - name: sleep_ms
+            value: "{{inputs.parameters.sleep_ms}}"
           - name: tag
             value: "{{inputs.parameters.tag}}"
         template: download

sdk/python/tests/compiler/testdata/recursive_while.yaml

@@ -8,7 +8,7 @@ metadata:
 spec:
   arguments:
     parameters:
-    - name: maxval
+    - name: maxVal
       value: '12'
   entrypoint: pipeline-flip-coin
   serviceAccountName: pipeline-runner

sdk/python/tests/compiler/testdata/volume_snapshotop_rokurl.yaml

@@ -8,7 +8,7 @@ metadata:
 spec:
   arguments:
     parameters:
-    - name: rok-url
+    - name: rok_url
   entrypoint: volumesnapshotop-rokurl
   serviceAccountName: pipeline-runner
   templates:
@@ -56,7 +56,7 @@ spec:
       successCondition: status.readyToUse == true
   - inputs:
       parameters:
-      - name: rok-url
+      - name: rok_url
     name: create-volume-1
     outputs:
       parameters:
@@ -72,7 +72,7 @@ spec:
     resource:
       action: create
       manifest: "apiVersion: v1\nkind: PersistentVolumeClaim\nmetadata:\n  annotations:\n\
-        \    rok/origin: '{{inputs.parameters.rok-url}}'\n  name: '{{workflow.name}}-vol1'\n\
+        \    rok/origin: '{{inputs.parameters.rok_url}}'\n  name: '{{workflow.name}}-vol1'\n\
         spec:\n  accessModes:\n  - ReadWriteMany\n  resources:\n    requests:\n  \
         \    storage: 1Gi\n"
   - inputs:
@@ -192,8 +192,8 @@ spec:
         template: create-snapshot-2
       - arguments:
           parameters:
-          - name: rok-url
-            value: '{{inputs.parameters.rok-url}}'
+          - name: rok_url
+            value: '{{inputs.parameters.rok_url}}'
         name: create-volume-1
         template: create-volume-1
       - arguments:
@@ -242,5 +242,5 @@ spec:
         template: step3-output
     inputs:
       parameters:
-      - name: rok-url
+      - name: rok_url
     name: volumesnapshotop-rokurl

sdk/python/tests/compiler/testdata/withitem_basic.yaml

@@ -8,7 +8,7 @@ metadata:
 spec:
   arguments:
     parameters:
-    - name: my-pipe-param
+    - name: my_pipe_param
       value: '10'
   entrypoint: my-pipeline
   serviceAccountName: pipeline-runner
@@ -19,8 +19,8 @@ spec:
           parameters:
           - name: loop-item-param-00000001-subvar-a
             value: '{{inputs.parameters.loop-item-param-00000001-subvar-a}}'
-          - name: my-pipe-param
-            value: '{{inputs.parameters.my-pipe-param}}'
+          - name: my_pipe_param
+            value: '{{inputs.parameters.my_pipe_param}}'
         name: my-in-coop1
         template: my-in-coop1
       - arguments:
@@ -33,19 +33,19 @@ spec:
       parameters:
       - name: loop-item-param-00000001-subvar-a
       - name: loop-item-param-00000001-subvar-b
-      - name: my-pipe-param
+      - name: my_pipe_param
     name: for-loop-for-loop-00000001-1
   - container:
       args:
-      - echo op1 {{inputs.parameters.loop-item-param-00000001-subvar-a}} {{inputs.parameters.my-pipe-param}}
+      - echo op1 {{inputs.parameters.loop-item-param-00000001-subvar-a}} {{inputs.parameters.my_pipe_param}}
       command:
       - sh
       - -c
       image: library/bash:4.4.23
     inputs:
       parameters:
       - name: loop-item-param-00000001-subvar-a
-      - name: my-pipe-param
+      - name: my_pipe_param
     name: my-in-coop1
   - container:
       args:
@@ -60,14 +60,14 @@ spec:
     name: my-in-coop2
   - container:
       args:
-      - echo {{inputs.parameters.my-pipe-param}}
+      - echo {{inputs.parameters.my_pipe_param}}
       command:
       - sh
       - -c
       image: library/bash:4.4.23
     inputs:
       parameters:
-      - name: my-pipe-param
+      - name: my_pipe_param
     name: my-out-cop
   - dag:
       tasks:
@@ -77,8 +77,8 @@ spec:
             value: '{{item.a}}'
           - name: loop-item-param-00000001-subvar-b
             value: '{{item.b}}'
-          - name: my-pipe-param
-            value: '{{inputs.parameters.my-pipe-param}}'
+          - name: my_pipe_param
+            value: '{{inputs.parameters.my_pipe_param}}'
         name: for-loop-for-loop-00000001-1
         template: for-loop-for-loop-00000001-1
         withItems:
@@ -88,11 +88,11 @@ spec:
           b: 20
       - arguments:
           parameters:
-          - name: my-pipe-param
-            value: '{{inputs.parameters.my-pipe-param}}'
+          - name: my_pipe_param
+            value: '{{inputs.parameters.my_pipe_param}}'
         name: my-out-cop
         template: my-out-cop
     inputs:
       parameters:
-      - name: my-pipe-param
+      - name: my_pipe_param
     name: my-pipeline