Refactor of bcfg2-admin (all modes moved to discrete modules in Bcfg2.Server.Admin

git-svn-id: https://svn.mcs.anl.gov/repos/bcfg/trunk/bcfg2@4125 ce84e21b-d406-0410-9b95-82705330c041

1 files changed, 143 insertions, 0 deletions

diff --git a/src/lib/Server/Admin/Viz.py b/src/lib/Server/Admin/Viz.py
new file mode 100644
index 000000000..bc2d8665c
--- /dev/null
+++ b/src/lib/Server/Admin/Viz.py
@@ -0,0 +1,143 @@
+
+import getopt, popen2, lxml.etree
+import Bcfg2.Server.Admin
+
+class Viz(Bcfg2.Server.Admin.Mode):
+    __shorthelp__ = '''bcfg2-admin viz [--includehosts] [--includebundles] [--includekey] [-o output.png] [--raw]'''
+    __longhelp__ = __shorthelp__ + '\n\tProduce graphviz diagrams of metadata structures'
+    def __init__(self, configfile):
+        Bcfg2.Server.Admin.Mode.__init__(self, configfile)
+        self.colors = ['steelblue1', 'chartreuse', 'gold', 'magenta',
+                       'indianred1', 'limegreen', 'orange1', 'lightblue2',
+                       'green1', 'blue1', 'yellow1', 'darkturquoise', 'gray66']
+
+    def __call__(self, args):
+        Bcfg2.Server.Admin.Mode.__call__(self, args)
+        # First get options to the 'viz' subcommand
+        try:
+            opts, args = getopt.getopt(args, 'rhbko:',
+                                       ['raw', 'includehosts', 'includebundles',
+                                        'includekey', 'outfile='])
+        except getopt.GetoptError, msg:
+            print msg
+            raise SystemExit(1)
+
+        rset = False
+        hset = False
+        bset = False
+        kset = False
+        outputfile = False
+        for opt, arg in opts:
+            if opt in ("-r", "--raw"):
+                rset = True
+            elif opt in ("-h", "--includehosts"):
+                hset = True
+            elif opt in ("-b", "--includebundles"):
+                bset = True
+            elif opt in ("-k", "--includekey"):
+                kset = True
+            elif opt in ("-o", "--outfile"):
+                outputfile = arg
+        repopath = self.get_repo_path()
+
+        data = self.Visualize(repopath, rset, hset, bset, kset)
+        if outputfile:
+            open(outputfile, 'w').write(data)
+        else:
+            print data
+
+    def Visualize(self, repopath, raw=False, hosts=False,
+                  bundles=False, key=False):
+        '''Build visualization of groups file'''
+        groupdata = lxml.etree.parse(repopath + '/Metadata/groups.xml')
+        groupdata.xinclude()
+        groups = groupdata.getroot()
+        if raw:
+            dotpipe = popen2.Popen4("dd bs=4M 2>/dev/null")
+        else:
+            dotpipe = popen2.Popen4("dot -Tpng")
+        categories = {'default':'grey83'}
+        instances = {}
+        egroups = groups.findall("Group") + groups.findall('.//Groups/Group')
+        for group in egroups:
+            if group.get('category', False):
+                if not categories.has_key(group.get('category')):
+                    categories[group.get('category')] = self.colors.pop()
+        
+        try:
+            dotpipe.tochild.write("digraph groups {\n")
+        except:
+            print "write to dot process failed. Is graphviz installed?"
+            raise SystemExit(1)
+        dotpipe.tochild.write('\trankdir="LR";\n')
+
+        if hosts:
+            clients = lxml.etree.parse(repopath + \
+                                       '/Metadata/clients.xml').getroot()
+            for client in clients.findall('Client'):
+                if instances.has_key(client.get('profile')):
+                    instances[client.get('profile')].append(client.get('name'))
+                else:
+                    instances[client.get('profile')] = [client.get('name')]
+            for profile, clist in instances.iteritems():
+                clist.sort()
+                dotpipe.tochild.write(
+                    '''\t"%s-instances" [ label="%s", shape="record" ];\n''' \
+                    % (profile, '|'.join(clist)))
+                dotpipe.tochild.write('''\t"%s-instances" -> "group-%s";\n''' \
+                                      % (profile, profile))
+
+        if bundles:
+            bundles = []
+            [bundles.append(bund.get('name')) \
+             for bund in groups.findall('.//Bundle')
+             if bund.get('name') not in bundles]
+            bundles.sort()
+            for bundle in bundles:
+                dotpipe.tochild.write(
+                    '''\t"bundle-%s" [ label="%s", shape="septagon"];\n''' \
+                    % (bundle, bundle))
+        gseen = []
+        for group in egroups:
+            color = categories[group.get('category', 'default')]
+            if group.get('profile', 'false') == 'true':
+                style = "filled, bold"
+            else:
+                style = "filled"
+            gseen.append(group.get('name'))
+            dotpipe.tochild.write(
+                '\t"group-%s" [label="%s", style="%s", fillcolor=%s];\n' %
+                (group.get('name'), group.get('name'), style, color))
+            if bundles:
+                for bundle in group.findall('Bundle'):
+                    dotpipe.tochild.write('\t"group-%s" -> "bundle-%s";\n' %
+                                          (group.get('name'), bundle.get('name')))
+        
+        gfmt = '\t"group-%s" [label="%s", style="filled", fillcolor="grey83"];\n' 
+        for group in egroups:
+            for parent in group.findall('Group'):
+                if parent.get('name') not in gseen:
+                    dotpipe.tochild.write(gfmt % (parent.get('name'),
+                                                  parent.get('name')))
+                    gseen.append(parent.get("name"))
+                dotpipe.tochild.write('\t"group-%s" -> "group-%s" ;\n' %
+                                      (group.get('name'), parent.get('name')))
+
+        if key:
+            dotpipe.tochild.write("\tsubgraph cluster_key {\n")
+            dotpipe.tochild.write('''\tstyle="filled";\n''')
+            dotpipe.tochild.write('''\tcolor="lightblue";\n''')
+            dotpipe.tochild.write('''\tBundle [ shape="septagon" ];\n''')
+            dotpipe.tochild.write('''\tGroup [shape="ellipse"];\n''')
+            dotpipe.tochild.write('''\tProfile [style="bold", shape="ellipse"];\n''')
+            dotpipe.tochild.write('''\tHblock [label="Host1|Host2|Host3", shape="record"];\n''')
+            for category in categories:
+                dotpipe.tochild.write(
+                    '''\t''' + category + ''' [label="''' + category + \
+                    '''", shape="record", style="filled", fillcolor=''' + \
+                    categories[category] + '''];\n''')
+            dotpipe.tochild.write('''\tlabel="Key";\n''')
+            dotpipe.tochild.write("\t}\n")
+        dotpipe.tochild.write("}\n")
+        dotpipe.tochild.close()
+        return dotpipe.fromchild.read()