Fix missing scheme on default exporter

promgen/migrations/0018_default_exporter_scheme.py

@@ -0,0 +1,33 @@
+# Generated by Django 2.2.10 on 2020-03-16 08:16
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('promgen', '0017_alter_alertlabel_field'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='defaultexporter',
+            name='scheme',
+            field=models.CharField(choices=[('http', 'http'), ('https', 'https')], default='http', help_text='Scrape exporter over http or https', max_length=5),
+        ),
+        migrations.AlterField(
+            model_name='defaultexporter',
+            name='job',
+            field=models.CharField(help_text='Exporter name. Example node, jmx, app', max_length=128),
+        ),
+        migrations.AlterField(
+            model_name='defaultexporter',
+            name='path',
+            field=models.CharField(blank=True, help_text='Exporter path. Defaults to /metrics', max_length=128),
+        ),
+        migrations.AlterField(
+            model_name='defaultexporter',
+            name='port',
+            field=models.IntegerField(help_text='Port Exporter is running on'),
+        ),
+    ]

promgen/models.py

@@ -316,7 +316,7 @@ def __str__(self):
         return '{} [{}]'.format(self.name, self.farm.name)
 
 
-class Exporter(models.Model):
+class BaseExporter(models.Model):
     job = models.CharField(
         max_length=128, help_text="Exporter name. Example node, jmx, app"
     )
@@ -325,27 +325,25 @@ class Exporter(models.Model):
         max_length=128, blank=True, help_text="Exporter path. Defaults to /metrics"
     )
     scheme = models.CharField(
-        max_length=5, choices=(("http", "http"), ("https", "https")), default="http", help_text="Scrape exporter over http or https"
+        max_length=5,
+        choices=(("http", "http"), ("https", "https")),
+        default="http",
+        help_text="Scrape exporter over http or https",
     )
 
-    project = models.ForeignKey("Project", on_delete=models.CASCADE)
-    enabled = models.BooleanField(default=True)
-
     class Meta:
-        ordering = ['job', 'port']
-        unique_together = (('job', 'port', 'project',),)
+        abstract = True
 
-    def __str__(self):
-        return '{}:{}:{} ({})'.format(self.job, self.port, self.path, self.project)
 
-    def get_absolute_url(self):
-        return reverse('project-detail', kwargs={'pk': self.project.pk})
+class DefaultExporter(BaseExporter):
+    class Meta:
+        ordering = ["job", "port"]
+        unique_together = (("job", "port", "path"),)
 
 
-class DefaultExporter(models.Model):
-    job = models.CharField(max_length=128)
-    port = models.IntegerField()
-    path = models.CharField(max_length=128, blank=True)
+class Exporter(BaseExporter):
+    project = models.ForeignKey("Project", on_delete=models.CASCADE)
+    enabled = models.BooleanField(default=True)
 
     class Meta:
         ordering = ["job", "port"]

promgen/templates/promgen/exporter_form.html

@@ -63,6 +63,7 @@ <h1>Project: {{ project.name }}</h1>
           <input type="hidden" name="job" value="{{ default.job }}" />
           <input type="hidden" name="port" value="{{ default.port }}" />
           <input type="hidden" name="path" value="{{ default.path }}" />
+          <input type="hidden" name="scheme" value="{{ default.scheme }}" />
           <input type="hidden" name="enabled" value="1" />
           <div class="input-group-btn">
             <button style="width:80%" class="btn btn-primary">Register {{ default.job }} :{{ default.port }}{{ default.path }}</button>