added the new algorithm to SCHEDULER_METHODs

circle/circle/settings/base.py

@@ -574,6 +574,9 @@ SESSION_COOKIE_NAME = "csessid%x" % (((getnode() // 139) ^
                                       (getnode() % 983)) & 0xffff)
                                       (getnode() % 983)) & 0xffff)
 
 
 MAX_NODE_RAM = get_env_variable("MAX_NODE_RAM", 1024)
 MAX_NODE_RAM = get_env_variable("MAX_NODE_RAM", 1024)
+MAX_NODE_CPU_CORE = get_env_variable("MAX_NODE_CPU_CORE", 10)
+
+SCHEDULER_METHOD = get_env_variable("SCHEDULER_METHOD", 'random')
 
 
 # Url to download the client: (e.g. http://circlecloud.org/client/download/)
 # Url to download the client: (e.g. http://circlecloud.org/client/download/)
 CLIENT_DOWNLOAD_URL = get_env_variable('CLIENT_DOWNLOAD_URL', 'http://circlecloud.org/client/download/')
 CLIENT_DOWNLOAD_URL = get_env_variable('CLIENT_DOWNLOAD_URL', 'http://circlecloud.org/client/download/')

circle/dashboard/forms.py

@@ -59,7 +59,7 @@ from storage.models import DataStore, Disk
 from django.contrib.admin.widgets import FilteredSelectMultiple
 from django.contrib.admin.widgets import FilteredSelectMultiple
 from django.contrib.auth.models import Permission
 from django.contrib.auth.models import Permission
 from .models import Profile, GroupProfile, Message
 from .models import Profile, GroupProfile, Message
-from circle.settings.base import LANGUAGES, MAX_NODE_RAM
+from circle.settings.base import LANGUAGES, MAX_NODE_RAM, MAX_NODE_CPU_CORE
 from django.utils.translation import string_concat
 from django.utils.translation import string_concat
 
 
 from .validators import domain_validator
 from .validators import domain_validator
@@ -118,10 +118,10 @@ class VmCustomizeForm(forms.Form):
     cpu_count = forms.IntegerField(widget=forms.NumberInput(attrs={
     cpu_count = forms.IntegerField(widget=forms.NumberInput(attrs={
         'class': "form-control input-tags cpu-count-input",
         'class': "form-control input-tags cpu-count-input",
         'min': 1,
         'min': 1,
-        'max': 10,
+        'max': MAX_NODE_CPU_CORE,
         'required': "",
         'required': "",
     }),
     }),
-        min_value=1, max_value=10,
+        min_value=1, max_value=MAX_NODE_CPU_CORE,
     )
     )
 
 
     ram_size = forms.IntegerField(widget=forms.TextInput(attrs={
     ram_size = forms.IntegerField(widget=forms.TextInput(attrs={
@@ -466,10 +466,10 @@ class TemplateForm(forms.ModelForm):
     num_cores = forms.IntegerField(widget=forms.NumberInput(attrs={
     num_cores = forms.IntegerField(widget=forms.NumberInput(attrs={
         'class': "form-control input-tags cpu-count-input",
         'class': "form-control input-tags cpu-count-input",
         'min': 1,
         'min': 1,
-        'max': 10,
+        'max': MAX_NODE_CPU_CORE,
         'required': "",
         'required': "",
     }),
     }),
-        min_value=1, max_value=10,
+        min_value=1, max_value=MAX_NODE_CPU_CORE,
     )
     )
 
 
     ram_size = forms.IntegerField(widget=forms.NumberInput(attrs={
     ram_size = forms.IntegerField(widget=forms.NumberInput(attrs={
@@ -1508,10 +1508,10 @@ class VmResourcesForm(forms.ModelForm):
     num_cores = forms.IntegerField(widget=forms.NumberInput(attrs={
     num_cores = forms.IntegerField(widget=forms.NumberInput(attrs={
         'class': "form-control input-tags cpu-count-input",
         'class': "form-control input-tags cpu-count-input",
         'min': 1,
         'min': 1,
-        'max': 10,
+        'max': MAX_NODE_CPU_CORE,
         'required': "",
         'required': "",
     }),
     }),
-        min_value=1, max_value=10,
+        min_value=1, max_value=MAX_NODE_CPU_CORE,
     )
     )
 
 
     ram_size = forms.IntegerField(widget=forms.NumberInput(attrs={
     ram_size = forms.IntegerField(widget=forms.NumberInput(attrs={

circle/dashboard/templates/dashboard/_resources-sliders.html

@@ -46,7 +46,7 @@
     <i class="fa fa-ticket"></i> {% trans "RAM amount" %}
     <i class="fa fa-ticket"></i> {% trans "RAM amount" %}
   </div>
   </div>
   <div class="col-sm-6">
   <div class="col-sm-6">
-    <input type="text" class="vm-slider ram-slider" 
+    <input type="text" class="vm-slider ram-slider"
      disabled placeholder="{% trans "Enable JS for fancy sliders" %}"
      disabled placeholder="{% trans "Enable JS for fancy sliders" %}"
      data-slider="true" data-slider-highlight="true" data-slider-range="0, 8192"
      data-slider="true" data-slider-highlight="true" data-slider-range="0, 8192"
      data-slider-step="128" data-slider-snap="true"/>
      data-slider-step="128" data-slider-snap="true"/>

circle/dashboard/templates/dashboard/vm-detail/network.html

@@ -73,7 +73,9 @@
                   {% if l.ipv4 %}
                   {% if l.ipv4 %}
                     <tr>
                     <tr>
                       <td>
                       <td>
-                        {% display_portforward4 l %}
+                        {% autoescape off %}
+                          {% display_portforward4 l %}
+                        {% endautoescape %}
                       </td>
                       </td>
                       <td><i class="fa fa-long-arrow-right"></i></td>
                       <td><i class="fa fa-long-arrow-right"></i></td>
                       <td>
                       <td>

circle/manager/scheduler.py

@@ -23,6 +23,10 @@ from django.conf import settings
 
 
 from common.models import HumanReadableException
 from common.models import HumanReadableException
 
 
+from circle.settings.base import SCHEDULER_METHOD
+
+import random
+
 logger = getLogger(__name__)
 logger = getLogger(__name__)
 
 
 
 
@@ -52,9 +56,7 @@ class TraitsUnsatisfiableException(SchedulerError):
         "new virtual machine currently.")
         "new virtual machine currently.")
 
 
 
 
-def select_node(instance, nodes):
-    ''' Select a node for hosting an instance based on its requirements.
-    '''
+def common_select(instance, nodes):
     # check required traits
     # check required traits
     nodes = [n for n in nodes
     nodes = [n for n in nodes
              if n.schedule_enabled and n.online and
              if n.schedule_enabled and n.online and
@@ -71,9 +73,40 @@ def select_node(instance, nodes):
 
 
     # sort nodes first by sorting_key, then priority
     # sort nodes first by sorting_key, then priority
     nodes.sort(key=lambda n: n.priority, reverse=True)
     nodes.sort(key=lambda n: n.priority, reverse=True)
+    return nodes
+
+
+def common_evenly(instance, nodes):
+    nodes = common_select(instance, nodes)
+    nodes.sort(key=free_cpu_time, reverse=True)
+    result = nodes[0]
+    return result
+
+
+def common_random(instance, nodes):
+    nodes = common_select(instance, nodes)
+    result = random.choice(nodes)
+    return result
+
+def advanced_with_time_stamp(instance, nodes):
+    nodes = common_select(instance, nodes)
     nodes.sort(key=sorting_key, reverse=True)
     nodes.sort(key=sorting_key, reverse=True)
     result = nodes[0]
     result = nodes[0]
+    return result
 
 
+def select_node(instance, nodes):
+    ''' Select a node for hosting an instance based on its requirements.
+    '''
+    if SCHEDULER_METHOD == 'evenly':
+        result = common_evenly(instance, nodes)
+    elif SCHEDULER_METHOD == 'random':
+        result = common_random(instance, nodes)
+    elif SCHEDULER_METHOD == 'advanced':
+        result = advanced_with_time_stamp(instance, nodes)
+    else:  # Default method is the random
+        result = common_random(instance, nodes)
+
+    logger.info('Scheduler method: %s selected', unicode(SCHEDULER_METHOD))
     logger.info('select_node: %s for %s', unicode(result), unicode(instance))
     logger.info('select_node: %s for %s', unicode(result), unicode(instance))
 
 
     result.time_stamp = timezone.now()
     result.time_stamp = timezone.now()