[BUGFIX] Allow space in service names

promgen/migrations/0013_validation_fix.py

@@ -17,12 +17,12 @@ class Migration(migrations.Migration):
         migrations.AlterField(
             model_name='farm',
             name='name',
-            field=models.CharField(max_length=128, validators=[django.core.validators.RegexValidator(re.compile('^[-\\w]+\\Z'), "Enter a valid 'slug' consisting of Unicode letters, numbers, underscores, or hyphens.", 'invalid')]),
+            field=models.CharField(max_length=128, validators=[django.core.validators.RegexValidator('^[\\w][- \\w]+\\Z', 'Unicode letters, numbers, underscores, or hyphens or spaces')]),
         ),
         migrations.AlterField(
             model_name='project',
             name='name',
-            field=models.CharField(max_length=128, unique=True, validators=[django.core.validators.RegexValidator(re.compile('^[-\\w]+\\Z'), "Enter a valid 'slug' consisting of Unicode letters, numbers, underscores, or hyphens.", 'invalid')]),
+            field=models.CharField(max_length=128, unique=True, validators=[django.core.validators.RegexValidator('^[\\w][- \\w]+\\Z', 'Unicode letters, numbers, underscores, or hyphens or spaces')]),
         ),
         migrations.AlterField(
             model_name='rule',
@@ -32,11 +32,11 @@ class Migration(migrations.Migration):
         migrations.AlterField(
             model_name='service',
             name='name',
-            field=models.CharField(max_length=128, unique=True, validators=[django.core.validators.RegexValidator(re.compile('^[-\\w]+\\Z'), "Enter a valid 'slug' consisting of Unicode letters, numbers, underscores, or hyphens.", 'invalid')]),
+            field=models.CharField(max_length=128, unique=True, validators=[django.core.validators.RegexValidator('^[\\w][- \\w]+\\Z', 'Unicode letters, numbers, underscores, or hyphens or spaces')]),
         ),
         migrations.AlterField(
             model_name='shard',
             name='name',
-            field=models.CharField(max_length=128, unique=True, validators=[django.core.validators.RegexValidator(re.compile('^[-\\w]+\\Z'), "Enter a valid 'slug' consisting of Unicode letters, numbers, underscores, or hyphens.", 'invalid')]),
+            field=models.CharField(max_length=128, unique=True, validators=[django.core.validators.RegexValidator('^[\\w][- \\w]+\\Z', 'Unicode letters, numbers, underscores, or hyphens or spaces')]),
         ),
     ]

promgen/tests/test_models.py

@@ -0,0 +1,28 @@
+# Copyright (c) 2020 LINE Corporation
+# These sources are released under the terms of the MIT license: see LICENSE
+
+
+from unittest import mock
+
+from django.core.exceptions import ValidationError
+
+from promgen import models
+from promgen.tests import PromgenTest
+
+
+class ModelTest(PromgenTest):
+    @mock.patch("django.dispatch.dispatcher.Signal.send")
+    def setUp(self, mock_signal):
+        self.user = self.add_force_login(id=999, username="Foo")
+
+    def test_names(self):
+        # Unicode is ok
+        models.Service(name=r"日本語", owner=self.user).full_clean()
+        # Spaces are ok
+        models.Service(name=r"foo bar", owner=self.user).full_clean()
+        # dash or under score are ok
+        models.Service(name=r"foo-bar_baz", owner=self.user).full_clean()
+        with self.assertRaises(ValidationError):
+            # Fail a name with \
+            models.Service(name=r"foo/bar", owner=self.user).full_clean()
+            models.Service(name=r"foo\bar", owner=self.user).full_clean()

promgen/validators.py

@@ -4,7 +4,7 @@
 from dateutil import parser
 
 from django.core.exceptions import ValidationError
-from django.core.validators import RegexValidator, validate_unicode_slug
+from django.core.validators import RegexValidator
 
 # See definition of duration field
 # https://prometheus.io/docs/prometheus/latest/configuration/configuration/#configuration-file
@@ -22,7 +22,12 @@
 labelname = RegexValidator(
     r"[a-zA-Z_][a-zA-Z0-9_]*", "Only alphanumeric characters are allowed."
 )
-labelvalue = validate_unicode_slug
+
+# While Prometheus accepts label values of any unicode character, our values sometimes
+# make it into URLs, so we want to make sure we do not have stray / characters
+labelvalue = RegexValidator(
+    r"^[\w][- \w]+\Z", "Unicode letters, numbers, underscores, or hyphens or spaces"
+)
 
 
 def datetime(value):