xentaur

annotate xentaur.py @ 10:f7fa09a390ed

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Работаем с файлами напрямую
author igor
date Thu Aug 30 14:45:50 2007 +0300 (2007-08-30)
parents 88a212771d27
children 1ede117a35ec
rev   line source
igor@0 1 #!/usr/bin/python
igor@0 2
igor@0 3
igor@2 4 import sys,os,time
igor@0 5 import xenomips_vars
igor@0 6 xenomips_vars.N='1'
igor@0 7 sys.path.append('/etc/xen')
igor@5 8 from xenomipsN import bridges,vbridges_table, hidden_bridges, domains, broken_links, temporary_links, domain_types
igor@0 9 from IPython.Shell import IPShellEmbed
igor@0 10
igor@2 11
igor@2 12 screenrc=os.environ['HOME']+"/.screenrc_xentaur"
igor@2 13
igor@10 14 def run(program, *args):
igor@10 15 pid = os.fork()
igor@10 16 if not pid:
igor@10 17 os.execvp(program, (program,) + args)
igor@10 18 return os.wait()[0]
igor@10 19
igor@10 20 def run_command(line):
igor@10 21 #cmds=line.split()
igor@10 22 #run(cmds[0],*cmds[1:])
igor@10 23 run("/bin/sh", "-c", line)
igor@10 24
igor@0 25 def create_bridges_script():
igor@0 26 unbound_bridges=bridges
igor@4 27 create_unbound_bridges="\n".join(map(lambda x: "sudo /usr/sbin/brctl show | awk '{print $1}' | grep -q "+x+" || sudo /usr/sbin/brctl addbr "+x, unbound_bridges))
igor@4 28 create_unbound_bridges+="\n"+"\n".join(map(lambda x: "sudo /bin/ip link set "+x+" up", unbound_bridges))
igor@0 29
igor@0 30 print """#!/bin/sh
igor@0 31 # create unbound bridges
igor@0 32 %(create_unbound_bridges)s
igor@0 33 """ % {'create_unbound_bridges' : create_unbound_bridges}
igor@0 34
igor@0 35
igor@0 36 def create_domains_script():
igor@0 37 for N in range(len(domains)):
igor@4 38 print "sudo /usr/sbin/xm create xenomipsN N="+str(N)+" && sleep 1 && sudo /usr/sbin/xm sched-credit -d $(sudo /usr/sbin/xm list | grep "+domains[N]+" | awk '{print $2}') -c 10 && sleep 1"
igor@0 39
igor@0 40 def destroy_domains_script():
igor@0 41 for N in range(len(domains)):
igor@4 42 print "sudo /usr/sbin/xm shutdown "+domains[N]
igor@0 43
igor@0 44 def create_screens_script():
igor@0 45
igor@7 46 N=1
igor@0 47 screens=[]
igor@0 48 for domain in domains:
igor@7 49 screens.append("screen -t "+domain+" "+str(N)+" xm console "+domain)
igor@7 50 # ip="192.168.80."+str(200+N)
igor@7 51 # screens.append("screen -t "+domain+" "+str(N)+" sh -c 'while true; do ssh root@"+ip+" ; done'")
igor@0 52 N+=1
igor@0 53 screenlist="\n".join(screens)
igor@0 54
igor@4 55 #hardstatus string "\%{gk}\%c \%{yk}\%M\%d \%{wk}\%?\%-Lw\%?\%{bw}\%n*\%f\%t\%?(\%u)\%?\%{wk}\%?\%+Lw\%?"
igor@10 56
igor@10 57 f=open("screenrc", "w");
igor@10 58 f.write("""
igor@2 59 hardstatus on
igor@2 60 hardstatus alwayslastline
igor@2 61
igor@0 62 screen -t console 0 bash
igor@10 63 %s
igor@10 64 """ % (screenlist))
igor@10 65 f.close()
igor@0 66
igor@0 67 def graph_node(node):
igor@0 68 i=0
igor@0 69 domain_type={}
igor@0 70 for domain in domains:
igor@0 71 domain_type[domain]=domain_types[i]
igor@0 72 i+=1
igor@0 73 return node+" [label=\" "+node+"\",shapefile=\"shapes/all/"+domain_type[node]+".png\",fontcolor=navy,fontsize=14]"
igor@0 74
igor@0 75 def graph():
igor@0 76 nodelist=""
igor@0 77 bridgelist=""
igor@0 78 linklist=""
igor@0 79 physicallist=""
igor@0 80 networklist=""
igor@0 81
igor@0 82 nodelist=";\n ".join(map(graph_node,nodes))
igor@0 83 if nodelist: nodelist += ";"
igor@0 84
igor@5 85 bridgelist=";\n ".join(set(bridges)-set(hidden_bridges))
igor@0 86 if bridgelist: bridgelist += ";"
igor@0 87
igor@0 88 links=[]
igor@0 89 for host, bridges_raw in vbridges_table.iteritems():
igor@0 90 i=0
igor@0 91 for this_bridge in bridges_raw:
igor@0 92 if this_bridge in hidden_bridges:
igor@0 93 continue
igor@0 94 if [ host, this_bridge ] in broken_links:
igor@0 95 links.append(host+" -- "+this_bridge+" [taillabel=\"fa"+str(i)+"/0\",style=dashed]")
igor@0 96 else:
igor@0 97 links.append(host+" -- "+this_bridge+" [taillabel=\"fa"+str(i)+"/0\"]")
igor@0 98 i+=1
igor@0 99
igor@0 100 for link in temporary_links:
igor@0 101 links.append(link[0]+" -- "+link[1]+" [color=blue,len=10,w=5,weight=5]")
igor@0 102
igor@0 103 linklist=";\n ".join(links)
igor@0 104
igor@0 105 graph_dot = {
igor@0 106 'nodelist' : nodelist,
igor@0 107 'bridgelist' : bridgelist,
igor@0 108 'linklist' : linklist,
igor@0 109 'physicallist' : physicallist,
igor@0 110 'networklist' : networklist,
igor@0 111 }
igor@0 112
igor@10 113 f = open("xenomips.dot", "w");
igor@10 114 f.write ("""
igor@0 115 graph G {
igor@0 116 edge [len=1.25];
igor@0 117 splines=true;
igor@0 118 // nodes
igor@0 119
igor@0 120 node [shape=plaintext,color=white,shapefile="shapes/cisco.bmp/router.png"];
igor@0 121 %(nodelist)s
igor@0 122
igor@0 123 // bridges
igor@0 124
igor@6 125 node [shape=none,shapefile="shapes/all/switch.png"];
igor@0 126 %(bridgelist)s
igor@0 127
igor@0 128 // physical
igor@0 129
igor@0 130 node [shape=rectangle,color=blue];
igor@0 131 %(physicallist)s
igor@0 132
igor@0 133 // networks (not bridges, not physical)
igor@0 134 node [shape=rectangle,color=green];
igor@0 135 %(networklist)s
igor@0 136
igor@0 137 // links (between nodes and bridges)
igor@0 138 %(linklist)s
igor@0 139
igor@0 140 };
igor@10 141 """ % graph_dot)
igor@10 142 f.close()
igor@10 143 run_command("neato -Tpng -o xenomips.png xenomips.dot ")
igor@0 144
igor@0 145 def start_all():
igor@0 146 create_bridges_script()
igor@0 147 create_screens_script()
igor@0 148 create_domains_script()
igor@0 149 graph()
igor@0 150 print """
igor@0 151 cat <<NOTE_FOR_USER
igor@0 152 # To view virtual network map, run:
igor@0 153 gqview xenomips.png
igor@0 154 # To attach to VM consoles, run:
igor@0 155 screen -c screenrc
igor@0 156 NOTE_FOR_USER
igor@0 157 """
igor@0 158
igor@0 159 def shell():
igor@0 160 ipshell = IPShellEmbed()
igor@0 161 ipshell()
igor@0 162
igor@0 163 def stop_all():
igor@4 164 destroy_domains_script()
igor@0 165
igor@0 166 def show_usage():
igor@0 167 print """Usage:
igor@0 168 xentaur {start|stop|start-bridges|start-domains|stop-domains|screen|graph}
igor@0 169 """
igor@0 170
igor@0 171 #-----------------------------------------------------------------------
igor@0 172
igor@0 173
igor@0 174 def add_domain(name,type):
igor@0 175 domains.append(name)
igor@0 176 domain_types.append(type)
igor@0 177
igor@0 178 def brake_link(domain,bridge):
igor@0 179 broken_links.append([domain,bridge])
igor@0 180
igor@4 181 wt_timeout=0.5
igor@8 182 def write_to(screen,string,return_to_screen=""):
igor@2 183 """
igor@2 184 write_to(screen,string):
igor@2 185
igor@8 186 Type *string* to the specified screen(s).
igor@8 187 Screen may be specified with the number *screen*,
igor@8 188 with array of numbers,
igor@8 189 with array of names.
igor@2 190
igor@2 191 """
igor@5 192 screen_numbers=[] # number of the screens to write to
igor@5 193 if type(screen) == list:
igor@5 194 screen_numbers=map(lambda x: domains.index(x)+1, screen)
igor@5 195 elif type(screen) == int:
igor@5 196 screen_numbers=[screen]
igor@5 197 else:
igor@5 198 screen_numbers=[domains.index(screen)+1]
igor@5 199
igor@5 200 for screen_number in screen_numbers:
igor@5 201 run_command("screen -X select "+str(screen_number))
igor@5 202 time.sleep(wt_timeout)
igor@5 203 for line in string.splitlines():
igor@5 204 f=open('/tmp/xentaurbuf', 'w')
igor@5 205 f.write(line+"\n")
igor@5 206 f.close()
igor@5 207 run_command("screen -X readreg p /tmp/xentaurbuf")
igor@5 208 time.sleep(wt_timeout)
igor@5 209 run_command("nohup screen -X paste p >& /dev/null")
igor@5 210 time.sleep(wt_timeout)
igor@5 211
igor@8 212 if return_to_screen != "":
igor@8 213 run_command("screen -X select %s" % (return_to_screen))
igor@8 214 time.sleep(wt_timeout)
igor@0 215
igor@0 216 #-----------------------------------------------------------------------
igor@0 217
igor@5 218 cisco_fa01_up="""
igor@5 219 ena
igor@5 220 conf t
igor@5 221 int fa0/0
igor@5 222 no shutdown
igor@5 223 exit
igor@5 224 int fa1/0
igor@5 225 no shutdown
igor@5 226 exit
igor@5 227 exit
igor@5 228 exit
igor@5 229 """
igor@5 230
igor@5 231 cisco_set_ip_on_int="""
igor@5 232 interface fa%s/0
igor@5 233 no ip address
igor@5 234 ip address %s 255.255.255.0
igor@5 235 exit
igor@5 236 """
igor@5 237
igor@5 238 #-----------------------------------------------------------------------
igor@0 239
igor@0 240 nodes=domains
igor@0 241
igor@0 242 if len(sys.argv) > 1:
igor@0 243 if sys.argv[1] == 'start':
igor@0 244 start_all()
igor@0 245 if sys.argv[1] == 'stop':
igor@0 246 stop_all()
igor@0 247 if sys.argv[1] == 'start-bridges':
igor@3 248 create_bridges_script()
igor@0 249 if sys.argv[1] == 'start-domains':
igor@3 250 create_domains_script()
igor@0 251 if sys.argv[1] == 'stop-domains':
igor@3 252 destroy_domains_script()
igor@0 253 elif sys.argv[1] == 'screen':
igor@3 254 create_screens_script()
igor@0 255 elif sys.argv[1] == 'graph':
igor@0 256 graph()
igor@0 257 elif sys.argv[1] == 'shell':
igor@0 258 shell()
igor@0 259
igor@0 260 else:
igor@0 261 show_usage()
igor@0 262 sys.exit(1)
igor@0 263
igor@0 264 sys.exit(0)
igor@0 265
igor@0 266