[Xen-changelog] [xen-unstable] The new lifecycle patches in xen-unstable added 3 new operations which can

[Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User Ewan Mellor <ewan@xxxxxxxxxxxxx>
# Node ID e98c84468b725d57369b774d6baba3a62fde3a9c
# Parent  78528a88d08204e40bb3c945ffbd4d94006c646c
The new lifecycle patches in xen-unstable added 3 new operations which can
be performed on domains - new, start and delete.  libvirt has had no-op
stub implementations of these APIs for a while & thus we'd enable their
use for Xen 3.0.4 builds. The new APIs are not currently exposed via the
existing SEXPR protocol, and since the new Xen-API protocol is unsupported
tech-preview for 3.0.4 we don't want to re-write against that just yet.

Thus the attached patch adds the 3 neccessary bindings for the SEXPR protocol
to allow the lifecycle functionality to be invoked. It also allows the 'state'
parameter to be specified when listing domains, so we can explicitly request
inactive domains if we know we're running against a 3.0.4 era XenD

Signed-off-by: Daniel P. Berrange <berrange@xxxxxxxxxx>
---
 tools/python/xen/xend/server/SrvDomain.py    |   13 +++++++++
 tools/python/xen/xend/server/SrvDomainDir.py |   37 ++++++++++++++++++++++++++-
 2 files changed, 49 insertions(+), 1 deletion(-)

diff -r 78528a88d082 -r e98c84468b72 tools/python/xen/xend/server/SrvDomain.py
--- a/tools/python/xen/xend/server/SrvDomain.py Thu Dec 07 12:14:22 2006 +0000
+++ b/tools/python/xen/xend/server/SrvDomain.py Thu Dec 07 12:15:30 2006 +0000
@@ -21,6 +21,7 @@ from xen.xend import sxp
 from xen.xend import sxp
 from xen.xend import XendDomain
 from xen.xend.Args import FormFn
+from xen.xend.XendLogging import log
 
 from xen.web.SrvDir import SrvDir
 
@@ -62,6 +63,18 @@ class SrvDomain(SrvDir):
     def op_shutdown(self, _, req):
         self.acceptCommand(req)
         return self.dom.shutdown(req.args['reason'][0])
+
+    def op_delete(self, _, req):
+        self.acceptCommand(req)
+        return self.xd.domain_delete(self.dom.getName())
+
+    def op_start(self, _, req):
+        self.acceptCommand(req)
+        paused = False
+        if 'paused' in req.args and req.args['paused'] == [1]:
+            paused = True
+        log.debug("Starting domain " + self.dom.getName() + " " + str(paused))
+        return self.xd.domain_start(self.dom.getName(), paused)
 
     def op_sysrq(self, _, req):
         self.acceptCommand(req)
diff -r 78528a88d082 -r e98c84468b72 
tools/python/xen/xend/server/SrvDomainDir.py
--- a/tools/python/xen/xend/server/SrvDomainDir.py      Thu Dec 07 12:14:22 
2006 +0000
+++ b/tools/python/xen/xend/server/SrvDomainDir.py      Thu Dec 07 12:15:30 
2006 +0000
@@ -25,6 +25,8 @@ from xen.xend.XendDomainInfo import Xend
 from xen.xend.XendDomainInfo import XendDomainInfo
 from xen.xend.Args import FormFn
 from xen.xend.XendError import XendError
+from xen.xend.XendLogging import log
+from xen.xend.XendConstants import DOM_STATE_RUNNING
 
 from xen.web.SrvDir import SrvDir
 from SrvDomain import SrvDomain
@@ -101,6 +103,35 @@ class SrvDomainDir(SrvDir):
             out.close()
             return val
 
+    def op_new(self, _, req):
+        """Define a new domain.
+        Expects the domain config in request parameter 'config' in SXP format.
+        """
+        ok = 0
+        errmsg = ''
+        try:
+            configstring = req.args.get('config')[0]
+            #print 'op_create>', 'config:', configstring
+            pin = sxp.Parser()
+            pin.input(configstring)
+            pin.input_eof()
+            config = pin.get_val()
+            ok = 1
+        except sxp.ParseError, ex:
+            errmsg = 'Invalid configuration ' + str(ex)
+        except Exception, ex:
+            print 'op_create> Exception in config', ex
+            traceback.print_exc()
+            errmsg = 'Configuration error ' + str(ex)
+        if not ok:
+            raise XendError(errmsg)
+        try:
+            self.xd.domain_new(config)
+        except Exception, ex:
+            print 'op_create> Exception creating domain:'
+            traceback.print_exc()
+            raise XendError("Error creating domain: " + str(ex))
+
     def op_restore(self, op, req):
         """Restore a domain from file.
 
@@ -159,7 +190,11 @@ class SrvDomainDir(SrvDir):
             if detail:
                 sxp.show(map(XendDomainInfo.sxpr, self.xd.list()), out=req)
             else:
-                sxp.show(self.xd.list_names(), out=req)
+                state = DOM_STATE_RUNNING
+                if 'state' in req.args and len(req.args['state']) > 0:
+                    state = req.args['state'][0]
+                log.debug("Listing domains in state " + str(state))
+                sxp.show(self.xd.list_names(state), out=req)
         else:
             domains = self.xd.list_sorted()
             req.write('<ul>')

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