X-Git-Url: http://xvm.mit.edu/gitweb/invirt/packages/invirt-web.git/blobdiff_plain/907f34a95f096535be1b47e99f37b063a2a8245c..8af4d9d694c4491601cb6f9394b811fc36f13cb2:/code/controls.py

diff --git a/code/controls.py b/code/controls.py
index 622dd50..8a5f1ef 100644
--- a/code/controls.py
+++ b/code/controls.py
@@ -2,7 +2,6 @@
 Functions to perform remctls.
 """
 
-from sipb_xen_database import Machine, Disk, Type, NIC, CDROM, ctx, meta
 import validation
 from webcommon import CodeError, InvalidInput
 import random
@@ -13,6 +12,9 @@ import re
 import cache_acls
 import yaml
 
+from invirt.config import structs as config
+from invirt.database import Machine, Disk, Type, NIC, CDROM, ctx, meta
+
 # ... and stolen from xend/uuid.py
 def randomUUID():
     """Generate a random UUID."""
@@ -25,10 +27,10 @@ def uuidToString(u):
                      "%02x" * 6]) % tuple(u)
 # end stolen code
 
-def kinit(username = 'daemon/sipb-xen.mit.edu', keytab = '/etc/sipb-xen.keytab'):
+def kinit():
     """Kinit with a given username and keytab"""
-
-    p = subprocess.Popen(['kinit', "-k", "-t", keytab, username],
+    p = subprocess.Popen(['kinit', "-k", "-t", '/etc/invirt/keytab',
+                          'daemon/'+config.web.hostname],
                          stderr=subprocess.PIPE)
     e = p.wait()
     if e:
@@ -46,7 +48,7 @@ def remctl(*args, **kws):
     kinits if necessary, and outputs errors to stderr.
     """
     checkKinit()
-    p = subprocess.Popen(['remctl', 'remote.mit.edu']
+    p = subprocess.Popen(['remctl', config.remote.hostname]
                          + list(args),
                          stdout=subprocess.PIPE,
                          stderr=subprocess.PIPE)
@@ -69,6 +71,18 @@ def makeDisks(machine):
     for disk in machine.disks:
         lvcreate(machine, disk)
 
+def getswap(disksize, memsize):
+    """Returns the recommended swap partition size."""
+    return int(min(disksize / 4, memsize * 1.5))
+
+def lvinstall(machine, autoinstall):
+    disksize = machine.disks[0].size
+    memsize = machine.memory
+    imagesize = disksize - getswap(disksize, memsize)
+    ip = machine.nics[0].ip
+    remctl('web', 'install', machine.name, autoinstall.distribution,
+           autoinstall.mirror, str(imagesize), ip)
+
 def lvcopy(machine_orig_name, machine, rootpw):
     """Copy a golden image onto a machine's disk"""
     remctl('web', 'lvcopy', machine_orig_name, machine.name, rootpw)
@@ -85,14 +99,14 @@ def bootMachine(machine, cdtype):
     else:
         out, err = remctl('control', machine.name, 'create',
                           err=True)
-    if 'already exists' in out:
+    if 'already running' in err:
         raise InvalidInput('action', 'create',
                            'VM %s is already on' % machine.name)
     elif err:
         raise CodeError('"%s" on "control %s create %s' 
                         % (err, machine.name, cdtype))
 
-def createVm(username, state, owner, contact, name, description, memory, disksize, machine_type, cdrom, clone_from):
+def createVm(username, state, owner, contact, name, description, memory, disksize, machine_type, cdrom, autoinstall):
     """Create a VM and put it in the database"""
     # put stuff in the table
     transaction = ctx.current.create_transaction()
@@ -118,7 +132,7 @@ def createVm(username, state, owner, contact, name, description, memory, disksiz
         open_nics = NIC.select_by(machine_id=None)
         if not open_nics: #No IPs left!
             raise CodeError("No IP addresses left!  "
-                            "Contact xvm@mit.edu.")
+                            "Contact %s." % config.web.errormail)
         nic = open_nics[0]
         nic.machine_id = machine.machine_id
         nic.hostname = name
@@ -130,8 +144,8 @@ def createVm(username, state, owner, contact, name, description, memory, disksiz
         transaction.rollback()
         raise
     makeDisks(machine)
-    if clone_from:
-        lvcopy(clone_from, machine, 'password')
+    if autoinstall:
+        lvinstall(machine, autoinstall)
     # tell it to boot with cdrom
     bootMachine(machine, cdrom)
     return machine
@@ -176,7 +190,7 @@ def statusInfo(machine):
     if 'Unknown command' in err_string:
         raise CodeError("ERROR in remctl list-long %s is not registered" % 
                         (machine.name,))
-    elif 'does not exist' in err_string:
+    elif 'is not on' in err_string:
         return None
     elif err_string:
         raise CodeError("ERROR in remctl list-long %s:  %s" % 
@@ -184,6 +198,13 @@ def statusInfo(machine):
     status = parseStatus(value_string)
     return status
 
+def listHost(machine):
+    """Return the host a machine is running on"""
+    out, err = remctl('control', machine.name, 'listhost', err=True)
+    if err:
+        return None
+    return out.strip()
+
 def deleteVM(machine):
     """Delete a VM."""
     remctl('control', machine.name, 'destroy', err=True)
@@ -223,7 +244,7 @@ def commandResult(username, state, fields):
             out, err = remctl('control', machine.name, 'reboot',
                               err=True)
         if err:
-            if re.match("Error: Domain '.*' does not exist.", err):
+            if re.match("machine '.*' is not on", err):
                 raise InvalidInput("action", "reboot", 
                                    "Machine is not on")
             else:
@@ -240,7 +261,7 @@ def commandResult(username, state, fields):
     elif action == 'Power off':
         out, err = remctl('control', machine.name, 'destroy', err=True)
         if err:
-            if re.match("Error: Domain '.*' does not exist.", err):
+            if re.match("machine '.*' is not on", err):
                 raise InvalidInput("action", "Power off", 
                                    "Machine is not on.")
             else:
@@ -250,7 +271,7 @@ def commandResult(username, state, fields):
     elif action == 'Shutdown':
         out, err = remctl('control', machine.name, 'shutdown', err=True)
         if err:
-            if re.match("Error: Domain '.*' does not exist.", err):
+            if re.match("machine '.*' is not on", err):
                 raise InvalidInput("action", "Shutdown", 
                                    "Machine is not on.")
             else: