install for sytemd *or* init

[nodemanager.git] / sliver_libvirt.py

diff --git a/sliver_libvirt.py b/sliver_libvirt.py
index 6f4cce1..6ae8eeb 100644 (file)
--- a/sliver_libvirt.py
+++ b/sliver_libvirt.py
@@ -4,6 +4,7 @@ import sys
 import os, os.path
 import subprocess
 import pprint
+import random
 
 import libvirt
 
@@ -109,7 +110,7 @@ class Sliver_Libvirt(Account):
                 logger.verbose('sliver_libvirt: %s is RUNNING'%self.name)
                 return True
             else:
-                info = debuginfo(self.dom)
+                info = Sliver_Libvirt.debuginfo(self.dom)
                 logger.verbose('sliver_libvirt: %s is ' \
                                'NOT RUNNING...\n%s'%(self.name, info))
                 return False
@@ -135,31 +136,90 @@ class Sliver_Libvirt(Account):
 
         # Btrfs support quota per volumes
 
-        # It will depend on the FS selection
-        if rec.has_key('disk_max'):
-            disk_max = rec['disk_max']
-            if disk_max == 0:
-                # unlimited 
-                pass
+        if rec.has_key("rspec") and rec["rspec"].has_key("tags"):
+            if cgroups.get_cgroup_path(self.name) == None:
+                # If configure is called before start, then the cgroups won't exist
+                # yet. NM will eventually re-run configure on the next iteration.
+                # TODO: Add a post-start configure, and move this stuff there
+                logger.log("Configure: postponing tag check on %s as cgroups are not yet populated" % self.name)
             else:
-                # limit to certain number
-                pass
-
-        # Memory allocation
-        if rec.has_key('memlock_hard'):
-            mem = rec['memlock_hard'] * 1024 # hard limit in bytes
-            cgroups.write(self.name, 'memory.limit_in_bytes', mem)
-        if rec.has_key('memlock_soft'):
-            mem = rec['memlock_soft'] * 1024 # soft limit in bytes
-            cgroups.write(self.name, 'memory.soft_limit_in_bytes', mem)
-
-        # CPU allocation
-        # Only cpu_shares until figure out how to provide limits and guarantees
-        # (RT_SCHED?)
-        if rec.has_key('cpu_share'):
-            cpu_share = rec['cpu_share']
-            cgroups.write(self.name, 'cpu.shares', cpu_share)
+                tags = rec["rspec"]["tags"]
+                # It will depend on the FS selection
+                if tags.has_key('disk_max'):
+                    disk_max = tags['disk_max']
+                    if disk_max == 0:
+                        # unlimited
+                        pass
+                    else:
+                        # limit to certain number
+                        pass
+
+                # Memory allocation
+                if tags.has_key('memlock_hard'):
+                    mem = str(int(tags['memlock_hard']) * 1024) # hard limit in bytes
+                    cgroups.write(self.name, 'memory.limit_in_bytes', mem, subsystem="memory")
+                if tags.has_key('memlock_soft'):
+                    mem = str(int(tags['memlock_soft']) * 1024) # soft limit in bytes
+                    cgroups.write(self.name, 'memory.soft_limit_in_bytes', mem, subsystem="memory")
+
+                # CPU allocation
+                # Only cpu_shares until figure out how to provide limits and guarantees
+                # (RT_SCHED?)
+                if tags.has_key('cpu_share'):
+                    cpu_share = tags['cpu_share']
+                    cgroups.write(self.name, 'cpu.shares', cpu_share)
 
         # Call the upper configure method (ssh keys...)
         Account.configure(self, rec)
 
+    @staticmethod
+    def get_unique_vif():
+        return 'veth%s' % random.getrandbits(32)
+
+    # A placeholder until we get true VirtualInterface objects
+    @staticmethod
+    def get_interfaces_xml(rec):
+        xml = """
+    <interface type='network'>
+      <source network='default'/>
+      <target dev='%s'/>
+    </interface>
+""" % (Sliver_Libvirt.get_unique_vif())
+        try:
+            tags = rec['rspec']['tags']
+            if 'interface' in tags:
+                interfaces = eval(tags['interface'])
+                if not isinstance(interfaces, (list, tuple)):
+                    # if interface is not a list, then make it into a singleton list
+                    interfaces = [interfaces]
+                tag_xml = ""
+                for interface in interfaces:
+                    if 'vlan' in interface:
+                        vlanxml = "<vlan><tag id='%s'/></vlan>" % interface['vlan']
+                    else:
+                        vlanxml = ""
+                    if 'bridge' in interface:
+                        tag_xml = tag_xml + """
+        <interface type='bridge'>
+          <source bridge='%s'/>
+          %s
+          <virtualport type='openvswitch'/>
+          <target dev='%s'/>
+        </interface>
+    """ % (interface['bridge'], vlanxml, Sliver_Libvirt.get_unique_vif())
+                    else:
+                        tag_xml = tag_xml + """
+        <interface type='network'>
+          <source network='default'/>
+          <target dev='%s'/>
+        </interface>
+    """ % (Sliver_Libvirt.get_unique_vif())
+
+                xml = tag_xml
+                logger.log('sliver_libvirty.py: interface XML is: %s' % xml)
+
+        except:
+            logger.log('sliver_libvirt.py: ERROR parsing "interface" tag for slice %s' % rec['name'])
+            logger.log('sliver_libvirt.py: tag value: %s' % tags['interface'])
+
+        return xml