Add validator for ee image field name

awxkit default ee image name is now a fixed valid (but bogus) name, rather than random unicode

awx/main/models/execution_environments.py

@@ -3,6 +3,7 @@ from django.utils.translation import ugettext_lazy as _
 
 from awx.api.versioning import reverse
 from awx.main.models.base import CommonModel
+from awx.main.validators import validate_container_image_name
 
 
 __all__ = ['ExecutionEnvironment']
@@ -31,6 +32,7 @@ class ExecutionEnvironment(CommonModel):
         max_length=1024,
         verbose_name=_('image location'),
         help_text=_("The full image location, including the container registry, image name, and version tag."),
+        validators=[validate_container_image_name],
     )
     managed_by_tower = models.BooleanField(default=False, editable=False)
     credential = models.ForeignKey(