Remove required when there are default values

yarn/assets/configuration/spec.yaml

@@ -19,13 +19,11 @@ files:
 
               The ResourceManager port can be found in the yarn-site.xml conf file under
               the property yarn.resourcemanager.webapp.address
-            required: true
             value:
               example: http://localhost:8088
               type: string
           - name: cluster_name
             description: A friendly name for the cluster.
-            required: true
             value:
               example: default_cluster
               type: string

yarn/datadog_checks/yarn/config_models/defaults.py

@@ -48,6 +48,10 @@ def instance_aws_service(field, value):
     return get_default_field_value(field, value)
 
 
+def instance_cluster_name(field, value):
+    return 'default_cluster'
+
+
 def instance_collect_app_metrics(field, value):
     return True
 
@@ -136,6 +140,10 @@ def instance_read_timeout(field, value):
     return get_default_field_value(field, value)
 
 
+def instance_resourcemanager_uri(field, value):
+    return 'http://localhost:8088'
+
+
 def instance_service(field, value):
     return get_default_field_value(field, value)
 

yarn/datadog_checks/yarn/config_models/instance.py

@@ -41,7 +41,7 @@ class Config:
     aws_host: Optional[str]
     aws_region: Optional[str]
     aws_service: Optional[str]
-    cluster_name: str
+    cluster_name: Optional[str]
     collect_app_metrics: Optional[bool]
     collect_node_metrics: Optional[bool]
     connect_timeout: Optional[float]
@@ -64,7 +64,7 @@ class Config:
     proxy: Optional[Proxy]
     queue_blacklist: Optional[Sequence[str]]
     read_timeout: Optional[float]
-    resourcemanager_uri: str
+    resourcemanager_uri: Optional[str]
     service: Optional[str]
     skip_proxy: Optional[bool]
     split_yarn_application_tags: Optional[bool]

yarn/datadog_checks/yarn/data/conf.yaml.example

@@ -45,7 +45,8 @@ init_config:
 #
 instances:
 
-    ## @param resourcemanager_uri - string - required
+  -
+    ## @param resourcemanager_uri - string - optional - default: http://localhost:8088
     ## The YARN check retrieves metrics from YARNS's ResourceManager. This
     ## check must be run from the Master Node and the ResourceManager URI must
     ## be specified below. The ResourceManager URI is composed of the
@@ -56,12 +57,12 @@ instances:
     ## The ResourceManager port can be found in the yarn-site.xml conf file under
     ## the property yarn.resourcemanager.webapp.address
     #
-  - resourcemanager_uri: http://localhost:8088
+    # resourcemanager_uri: http://localhost:8088
 
-    ## @param cluster_name - string - required
+    ## @param cluster_name - string - optional - default: default_cluster
     ## A friendly name for the cluster.
     #
-    cluster_name: default_cluster
+    # cluster_name: default_cluster
 
     ## @param application_tags - mapping - optional
     ## Set up tags retrieved from the application data to be applied to the