From 0dc85bf56ae4fbbbcbe85636dcfbeae81b66744d Mon Sep 17 00:00:00 2001
From: Narayan Desai <desai@mcs.anl.gov>
Date: Tue, 3 Jan 2006 16:43:33 +0000
Subject: re-add daemonization code

git-svn-id: https://svn.mcs.anl.gov/repos/bcfg/trunk/bcfg2@1638 ce84e21b-d406-0410-9b95-82705330c041
---
 src/sbin/Bcfg2Server | 32 ++++++++++++++++++++++++++++----
 1 file changed, 28 insertions(+), 4 deletions(-)

(limited to 'src')

diff --git a/src/sbin/Bcfg2Server b/src/sbin/Bcfg2Server
index 8477fd4ca..ebeb8228d 100644
--- a/src/sbin/Bcfg2Server
+++ b/src/sbin/Bcfg2Server
@@ -18,6 +18,30 @@ from socket import gethostbyaddr, herror
 from lxml.etree import XML, Element, tostring
 from M2Crypto.SSL import SSLError
 
+import os, sys
+
+def daemonize(filename):
+    '''Do the double fork/setsession dance'''
+    # Fork once
+    if os.fork() != 0:      
+        os._exit(0)         
+    os.setsid()                     # Create new session
+    pid = os.fork()
+    if pid != 0:
+        pidfile = open(filename, "w")
+        pidfile.write("%i" % pid)
+        pidfile.close()
+        os._exit(0)     
+    os.chdir("/")         
+    os.umask(0)
+
+    null = open("/dev/null", "w+")
+
+    os.dup2(null.fileno(), sys.__stdin__.fileno())
+    os.dup2(null.fileno(), sys.__stdout__.fileno())
+    os.dup2(null.fileno(), sys.__stderr__.fileno())
+
+
 def critical_error(operation):
     '''Print tracebacks in unexpected cases'''
     syslog(LOG_ERR, "Traceback information (please include in any bug report):")
@@ -165,7 +189,7 @@ class Bcfg2(Component):
         resp = Element('probes')
 
         try:
-            meta = self.Core.metadata.FetchMetadata(client)
+            meta = self.Core.metadata.get_metadata(client)
             
             for generator in self.Core.generators:
                 for probe in generator.GetProbes(meta):
@@ -199,9 +223,7 @@ class Bcfg2(Component):
 
         if image and profile:
             try:
-                # if metadata is provided, call FetchMetadata with settings
-                # it is screwy. i know.
-                self.Core.metadata.FetchMetadata(client, image=image, profile=profile)
+                self.Core.metadata.set_group(client, profile)
             except MetadataConsistencyError:
                 warning = 'metadata consistency error'
                 warning_error(warning)
@@ -253,6 +275,8 @@ if __name__ == '__main__':
     
     ssetup = dgetopt(argv[1:], options, doptions,
                      descriptions, argDescriptions)
+    if ssetup['daemon']:
+        daemonize(ssetup['daemon'])
     if not ssetup['configfile']:
         ssetup['configfile'] = '/etc/bcfg2.conf'
     s = Bcfg2(ssetup)
-- 
cgit v1.2.3-1-g7c22