module: support a 'ignore_errors' argument

It's more idiomatic for ansible then "on_error".

'ignore_errors' can be specified as a module argument.
But it can also be specified on a per-profile level,
with the intuitive behavior that the per-profile setting
overwrites the per-module setting.

library/network_connections.py

@@ -460,7 +460,7 @@ class ArgValidator_DictConnection(ArgValidatorDict):
                 ArgValidatorStr ('mac'),
                 ArgValidatorStr ('parent'),
                 ArgValidatorInt ('vlan_id', val_min = 0, val_max = 4095, default_value = None),
-                ArgValidatorStr ('on_error', enum_values = ['continue', 'fail'], default_value = 'fail'),
+                ArgValidatorBool('ignore_errors', default_value = None),
                 ArgValidator_DictIP(),
             ],
             default_value = dict,
@@ -481,9 +481,9 @@ class ArgValidator_DictConnection(ArgValidatorDict):
             if result['state'] == 'present':
                 VALID_FIELDS.remove('wait')
         elif result['state'] in ['up', 'down']:
-            VALID_FIELDS = ['name', 'state', 'wait', 'on_error']
+            VALID_FIELDS = ['name', 'state', 'wait', 'ignore_errors']
         elif result['state'] == 'absent':
-            VALID_FIELDS = ['name', 'state', 'on_error']
+            VALID_FIELDS = ['name', 'state', 'ignore_errors']
         elif result['state'] == 'wait':
             VALID_FIELDS = ['state', 'wait']
         else:
@@ -1182,8 +1182,9 @@ class NMUtil:
 class _AnsibleUtil:
 
     ARGS = {
-        'provider':       { 'required': True,  'default': None, 'type': 'str' },
-        'connections':    { 'required': False, 'default': None, 'type': 'list' },
+        'ignore_errors':  { 'required': False, 'default': False, 'type': 'str' },
+        'provider':       { 'required': True,  'default': None,  'type': 'str' },
+        'connections':    { 'required': False, 'default': None,  'type': 'list' },
     }
 
     ARGS_CONNECTIONS = ArgValidator_ListConnections()
@@ -1283,8 +1284,17 @@ class _AnsibleUtil:
 
     def log(self, idx, severity, msg, warn_traceback = False):
         self.run_results[idx]['log'].append((severity, msg))
-        if severity == LogLevel.ERROR and self.connections[idx]['on_error'] != 'continue':
-            self.fail_json('error: %s' % (msg), warn_traceback = warn_traceback)
+        if severity == LogLevel.ERROR:
+            # ignore_errors can be specified per profile. In absense of a
+            # per-profile setting, a global parameter is consulted.
+            ignore_errors = self.connections[idx]['ignore_errors']
+            if ignore_errors is None:
+                try:
+                    ignore_errors = Util.boolean(self.params['ignore_errors'])
+                except:
+                    ignore_errors = None
+            if not ignore_errors:
+                self.fail_json('error: %s' % (msg), warn_traceback = warn_traceback)
 
     def _complete_kwargs(self, kwargs, traceback_msg = None):
         if 'warnings' in kwargs:

library/test_network_connections.py

@@ -130,8 +130,7 @@ class TestValidator(unittest.TestCase):
                     'mac': None,
                     'master': None,
                     'vlan_id': None,
-                    'on_error':
-                    'fail',
+                    'ignore_errors': None,
                     'interface_name': None,
                     'slave_type': None,
                 },
@@ -139,7 +138,7 @@ class TestValidator(unittest.TestCase):
                     'name': '5',
                     'state': 'up',
                     'wait': 90,
-                    'on_error': 'fail',
+                    'ignore_errors': None,
                 }
             ],
             n.AnsibleUtil.ARGS_CONNECTIONS.validate([
@@ -171,8 +170,7 @@ class TestValidator(unittest.TestCase):
                     'mac': None,
                     'master': None,
                     'vlan_id': None,
-                    'on_error':
-                    'fail',
+                    'ignore_errors': None,
                     'interface_name': None,
                     'slave_type': None,
                     'wait': 90,
@@ -194,7 +192,7 @@ class TestValidator(unittest.TestCase):
                 {
                     'name': '5',
                     'state': 'absent',
-                    'on_error': 'fail',
+                    'ignore_errors': None,
                 }
             ],
             n.AnsibleUtil.ARGS_CONNECTIONS.validate([
@@ -230,7 +228,7 @@ class TestValidator(unittest.TestCase):
                     'master': None,
                     'name': '5',
                     'parent': None,
-                    'on_error': 'fail',
+                    'ignore_errors': None,
                     'slave_type': None,
                     'state': 'present',
                     'type': 'ethernet',

tasks/main.yml

@@ -15,6 +15,7 @@
 - name: Configure networking connection profiles
   network_connections:
       provider:       "{{ network.provider    | default(network_provider) | mandatory }}"
+      ignore_errors:  "{{ network.ignore_errors | default(omit) }} "
       connections:    "{{ network.connections | default([]) }}"
 
 - name: Re-test connectivity