Add Quick-Booking Workflow

Users can now quickly provision a single-host pod without having to
configure unecessary networking. This is intended to be analogous to the
workflow used during LaaS 1.0, and to speed up the process of creating a
booking for users who do not need more than a single host (for virtual
deployments)

Change-Id: Ia19cea9a42bbb1df57aad05af8f8ea821395664d
Signed-off-by: Sawyer Bergeron <sawyerbergeron@gmail.com>

3 files changed, 31 insertions, 6 deletions

diff --git a/src/resource_inventory/migrations/0005_image_os.py b/src/resource_inventory/migrations/0005_image_os.py
new file mode 100644
index 0000000..ede008e
--- /dev/null
+++ b/src/resource_inventory/migrations/0005_image_os.py
@@ -0,0 +1,19 @@
+# Generated by Django 2.1 on 2019-01-10 16:18
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('resource_inventory', '0004_auto_20181017_1532'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='image',
+            name='os',
+            field=models.ForeignKey(null=True, on_delete=django.db.models.deletion.CASCADE, to='resource_inventory.Opsys'),
+        ),
+    ]
diff --git a/src/resource_inventory/models.py b/src/resource_inventory/models.py
index b56317b..5b07077 100644
--- a/src/resource_inventory/models.py
+++ b/src/resource_inventory/models.py
@@ -25,7 +25,7 @@ class HostProfile(models.Model):
     labs = models.ManyToManyField(Lab, related_name="hostprofiles")
 
     def validate(self):
-        validname = re.compile("^[A-Za-z0-9\-\_\.\/\, ]+$")
+        validname = re.compile(r"^[A-Za-z0-9\-\_\.\/\, ]+$")
         if not validname.match(self.name):
             return "Invalid host profile name given. Name must only use A-Z, a-z, 0-9, hyphens, underscores, dots, commas, or spaces."
         else:
@@ -147,7 +147,7 @@ class GenericResourceBundle(models.Model):
 
 class GenericResource(models.Model):
     bundle = models.ForeignKey(GenericResourceBundle, related_name='generic_resources', on_delete=models.DO_NOTHING)
-    hostname_validchars = RegexValidator(regex='(?=^.{1,253}$)(?=(^([A-Za-z0-9\-\_]{1,62}\.)*[A-Za-z0-9\-\_]{1,63}$))', message="Enter a valid hostname. Full domain name may be 1-253 characters, each hostname 1-63 characters (including suffixed dot), and valid characters for hostnames are A-Z, a-z, 0-9, hyphen (-), and underscore (_)")
+    hostname_validchars = RegexValidator(regex=r'(?=^.{1,253}$)(?=(^([A-Za-z0-9\-\_]{1,62}\.)*[A-Za-z0-9\-\_]{1,63}$))', message="Enter a valid hostname. Full domain name may be 1-253 characters, each hostname 1-63 characters (including suffixed dot), and valid characters for hostnames are A-Z, a-z, 0-9, hyphen (-), and underscore (_)")
     name = models.CharField(max_length=200, validators=[hostname_validchars])
 
     def getHost(self):
@@ -157,7 +157,7 @@ class GenericResource(models.Model):
         return self.name
 
     def validate(self):
-        validname = re.compile('(?=^.{1,253}$)(?=(^([A-Za-z0-9\-\_]{1,62}\.)*[A-Za-z0-9\-\_]{1,63}$))')
+        validname = re.compile(r'(?=^.{1,253}$)(?=(^([A-Za-z0-9\-\_]{1,62}\.)*[A-Za-z0-9\-\_]{1,63}$))')
         if not validname.match(self.name):
             return "Enter a valid hostname. Full domain name may be 1-253 characters, each hostname 1-63 characters (including suffixed dot), and valid characters for hostnames are A-Z, a-z, 0-9, hyphen (-), and underscore (_)"
         else:
@@ -265,6 +265,7 @@ class Image(models.Model):
     # may need to change host_type.on_delete to models.SET() once images are transferrable between compatible host types
     host_type = models.ForeignKey(HostProfile, on_delete=models.CASCADE)
     description = models.TextField()
+    os = models.ForeignKey(Opsys, null=True, on_delete=models.CASCADE)
 
     def __str__(self):
         return self.name
diff --git a/src/resource_inventory/resource_manager.py b/src/resource_inventory/resource_manager.py
index 9282580..812fcd7 100644
--- a/src/resource_inventory/resource_manager.py
+++ b/src/resource_inventory/resource_manager.py
@@ -17,7 +17,7 @@ from dashboard.exceptions import (
     ResourceProvisioningException,
     ModelValidationException,
 )
-from resource_inventory.models import Host, HostConfiguration, ResourceBundle
+from resource_inventory.models import Host, HostConfiguration, ResourceBundle, HostProfile
 
 
 class ResourceManager:
@@ -33,6 +33,11 @@ class ResourceManager:
             ResourceManager.instance = ResourceManager()
         return ResourceManager.instance
 
+    def getAvailableHostTypes(self, lab):
+        hostset = Host.objects.filter(lab=lab).filter(booked=False).filter(working=True)
+        hostprofileset = HostProfile.objects.filter(host__in=hostset, labs=lab)
+        return set(hostprofileset)
+
     # public interface
     def deleteResourceBundle(self, resourceBundle):
         for host in Host.objects.filter(bundle=resourceBundle):
@@ -70,12 +75,12 @@ class ResourceManager:
                 physical_hosts.append(physical_host)
 
                 self.configureNetworking(physical_host)
-            except:
+            except Exception:
                 self.fail_acquire(physical_hosts)
                 raise ResourceProvisioningException("Network configuration failed.")
             try:
                 physical_host.save()
-            except:
+            except Exception:
                 self.fail_acquire(physical_hosts)
                 raise ModelValidationException("Saving hosts failed")