Initial checkin of node test app
authorTony Mack <tmack@cs.princeton.edu>
Fri, 7 Dec 2007 15:06:59 +0000 (15:06 +0000)
committerTony Mack <tmack@cs.princeton.edu>
Fri, 7 Dec 2007 15:06:59 +0000 (15:06 +0000)
node_ssh/Makefile [new file with mode: 0644]
node_ssh/nst.cron [new file with mode: 0644]
node_ssh/nst.py [new file with mode: 0644]
node_ssh/nst_config [new file with mode: 0644]

diff --git a/node_ssh/Makefile b/node_ssh/Makefile
new file mode 100644 (file)
index 0000000..3d1cac9
--- /dev/null
@@ -0,0 +1,39 @@
+CODE = nst.py
+
+CONFIG = nst_config
+
+CRON = nst.cron
+
+CROND = /etc/init.d/crond
+APPS = nst
+
+datadir := /usr/share
+appdir := /planetlab/tests/nst
+
+all: $(APPS)
+
+nst: $(CODE) $(CONFIG) $(CRON) data
+       install -D -m 755 nst.py $(datadir)/$(appdir)/$(CODE)
+       install -D -m 750 nst_config $(datadir)/$(appdir)/$(CONFIG)
+       install -D -m 755 nst.cron /etc/cron.d/$(CRON)
+
+       # create symlink to executable  
+       ln -s $(datadir)/$(appdir)/$(CODE) /usr/bin/nst
+
+        # reload cron
+       $(CROND) reload
+
+
+data:
+       install -d -m 755 $(datadir)/$(appdir)/keys/
+       install -d -m 755 $(datadir)/$(appdir)/plots/   
+       install -d -m 755 $(datadir)/$(appdir)/data/
+clean:
+       rm -Rf $(datadir)/$(appdir)
+       rm -rf /etc/cron.d/$(CRON)
+       rm -rf /usr/bin/nst
+
+       $(CROND) reload
+
+.PHONY: clean data
diff --git a/node_ssh/nst.cron b/node_ssh/nst.cron
new file mode 100644 (file)
index 0000000..00ee599
--- /dev/null
@@ -0,0 +1,6 @@
+NTS_PATH = "/var/planetlab/test/nts"
+
+*/2 * * * * cd $NTS_PATH; python nts.py;
+
+
+
diff --git a/node_ssh/nst.py b/node_ssh/nst.py
new file mode 100644 (file)
index 0000000..c262079
--- /dev/null
@@ -0,0 +1,398 @@
+#!/usr/bin/python
+
+import time, sys, urllib, os, tempfile, random
+import xmlrpclib
+from optparse import OptionParser
+from getpass import getpass
+from time import sleep
+
+parser = OptionParser()
+parser.add_option("-c", "--config", action="store", dest="config",  help="Path to alternate config file")
+parser.add_option("-x", "--url", action="store", dest="url", help = "API URL")
+parser.add_option("-s", "--slice", action="store", dest="slice", help = "Name of slice to use")
+parser.add_option("-n", "--nodes", action="store", dest="nodes", help = "File that contains a list of nodes to try to access")
+parser.add_option("-k", "--key", action="store", dest="key", help = "Path to alternate public key")
+parser.add_option("-u", "--user", action="store", dest="user", help = "API user name")
+parser.add_option("-p", "--password", action="store", dest="password", help = "API password") 
+parser.add_option("-v", "--verbose", action="store_true",  dest="verbose", help="Be verbose (default: %default)")
+(options, args) = parser.parse_args()
+
+# If user is specified but password is not
+if options.user is not None and options.password is None:
+    try:
+        options.password = getpass()
+    except (EOFError, KeyboardInterrupt):
+        print
+        sys.exit(0)
+
+class Config:
+    
+    def __init__(self, options):
+       
+       # if options are specified use them
+        # otherwise use options from config file
+       if options.config: config_file = options.config
+       else: config_file = '/usr/share/planetlab/tests/nst/nst_config'
+       
+       try:
+           execfile(config_file, self.__dict__)
+       except:
+           raise "Could not find nst config in " + config_file
+
+       if options.url: self.NST_API_SERVER = options.url
+       if options.slice: self.NST_SLICE = options.slice
+       if options.key: self.NST_KEY_PATH = options.key
+       if options.user: self.NST_USER = options.user
+       if options.password: self.NST_PASSWORD = options.password
+       if options.nodes: self.NST_NODES = options.nodes
+       else: self.NST_NODES = None
+
+       self.api = xmlrpclib.Server(self.NST_API_SERVER)
+       self.auth = {}
+       self.auth['Username'] = self.NST_USER
+       self.auth['AuthString'] = self.NST_PASSWORD
+       self.auth['AuthMethod'] = 'password'
+       self.key = self.NST_KEY_PATH
+       self.slice = self.NST_SLICE
+       self.nodes = self.NST_NODES
+       self.multiquery_path = self.NST_MULTIQUERY_PATH
+       self.verbose = options.verbose  
+       
+       self.data_path = '/usr/share/planetlab/tests/nst/data/'
+       self.plots_path = '/usr/share/planetlab/tests/nst/plots/'       
+       
+
+# get formatted tic string for gnuplot
+def getTimeTicString(t1, t2, step):
+       first_hour = list(time.localtime(t1))
+       if not first_hour[4] == first_hour[5] == 0:
+               first_hour[4] = 0
+               first_hour[5] = 0
+       
+       first_hour_time = int(time.mktime(first_hour))
+       first_hour_time += 3600
+       
+       backsteps = (first_hour_time - t1)
+       backsteps /= step
+       start = first_hour_time - backsteps * step
+       
+       tics = []
+       thistime = start
+       while thistime < t2:
+               tics.append("\"%s\" %d" % \
+                       (time.strftime("%H:%M", time.localtime(thistime)), thistime))
+               thistime += step
+       
+       ticstr = ", ".join(tics)
+       return ticstr
+
+
+# count total number of nodes in PlanetLab, according to the api
+# count total number  of nodes in slice, according to the api 
+def count_nodes_by_api(config):
+
+       # count all nodes       
+       all_nodes = [row['node_id'] for row in config.api.GetNodes(config.auth, {}, ['node_id', 'slice_ids'])]
+       all_nodes_output = "%d\t%d" % (round(time.time()), len(all_nodes))
+
+       # count all nodes in slice
+       if config.slice == 'root':
+           nodes_in_slice = all_nodes
+           nodes_in_slice_output = all_nodes_output
+       else:
+           slice_id =config.api.GetSlices(config.auth, {'name': config.slice}, ['slice_id'])[0]['slice_id']
+           nodes_in_slice = [row['node_id'] for row in \
+                             all_nodes if slice_id in row['slice_ids']]
+           nodes_in_slice_output =  "%d\t%d" % (round(time.time()), len(nodes_in_slice))
+
+       # write result to datafiles
+       all_nodes_file_name = config.data_path + os.sep + "nodes" 
+       all_nodes_file = open(all_nodes_file_name, 'w')
+       all_nodes_file.write(all_nodes_output)
+       all_nodes_file.close()
+       
+       nodes_in_slice_file_name = config.data_path + os.sep + "nodes_in_slice"
+       nodes_in_slice_file = open(nodes_in_slice_file_name, 'w')
+       nodes_in_slice_file.write(nodes_in_slice_output)
+       nodes_in_slice_file.close()
+       
+       if config.verbose:
+           print "all node: " + all_nodes_output
+           print "nodes in slice: " + nodes_in_slice_output
+               
+
+# count total number of "good" nodes, according to CoMon
+def count_nodes_good_by_comon(config):
+       
+       
+       comon = urllib.urlopen("http://summer.cs.princeton.edu/status/tabulator.cgi?table=table_nodeviewshort&format=nameonly&select='resptime%20%3E%200%20&&%20((drift%20%3E%201m%20||%20(dns1udp%20%3E%2080%20&&%20dns2udp%20%3E%2080)%20||%20gbfree%20%3C%205%20||%20sshstatus%20%3E%202h)%20==%200)'")
+       good_nodes = comon.readlines()
+
+       comon_output =  "%d\t%d" % (round(time.time()), len(good_nodes))
+       nodes_good_comon_file_name = config.data_path + os.sep + "nodes_good"
+       nodes_good_comon_file = open(nodes_good_comon_file_name, 'a')
+       nodes_good_comon_file.write(comon_output)
+       nodes_good_comon_file.close()
+       
+       if config.verbose:
+           print "comon: " + comon_output 
+       
+# count total number of nodes reachable by ssh
+def count_nodes_can_ssh(config):
+
+       api = config.api
+       slice = config.slice
+       key = config.key
+       verbose = config.verbose
+       auth = config.auth
+       nodes = config.nodes
+       multiquery_path = config.multiquery_path
+
+       if verbose:
+           verbose_text = ""
+           print "Creating list of nodes to ssh to"
+       else:
+           verbose_text = ">/dev/null 2>&1"
+       
+       # creaet node dict
+       all_nodes = api.GetNodes(auth, {}, ['hostname', 'boot_state', 'last_updated'])
+        node_dict = {}
+        for node in all_nodes:
+            node_dict[node['hostname']] = node
+
+       # create node list
+       if nodes:
+           nodes_file = open(nodes, 'r')
+           nodes_filename = nodes_file.name
+           lines = nodes_file.readlines()
+           node_list = [node.replace('\n', '') for node in lines]
+           nodes_file.close()
+           
+       else:
+           node_list = node_dict.keys()
+           nodes_filename = tempfile.mktemp()
+           nodes_file = open(nodes_filename, 'w')
+           nodes_file.write_lines(node_list)
+           nodes_file.close()
+       
+       # creaet node dict
+       node_dict = {}
+        for node in all_nodes:
+            node_dict[node['hostname']] = node
+
+       private_key = key.split(".pub")[0] 
+       
+       # create ssh command
+       if verbose:
+           print "Attemptng to ssh to nodes in " + nodes_filename
+
+       ssh_filename = tempfile.mktemp()
+       ssh_file = open(ssh_filename, 'w')
+       ssh_file.write("""
+       export PATH=$PATH:%(multiquery_path)s
+       export MQ_SLICE="%(slice)s"
+        export MQ_NODES="%(nodes_filename)s"
+
+       eval `ssh-agent` >/dev/null 2>&1
+        trap "kill $SSH_AGENT_PID" 0
+        ssh-add %(private_key)s >/dev/null 2>&1        
+       
+       multiquery 'hostname' 2>/dev/null |
+       grep "bytes" | 
+        grep -v ": 0 bytes"            
+       """ % locals())
+       ssh_file.close()
+       ssh_results = os.popen("python /tmp/test").readlines()
+       ssh_result = eval(ssh_results[0].replace('\\n', '')) 
+
+       # create a list of hostname out of results that are not empty
+       good_nodes = []
+       for result in ssh_result:
+           if result.find("bytes") > -1:
+               result_parts = result.split(":")
+               hostname = result_parts[0]
+               good_nodes.append(hostname)
+
+       # count number of node we can ssh into
+       ssh_count = len(good_nodes)
+       
+       # determine whince nodes are dead:
+       dead_nodes = set(node_list).difference(good_nodes)
+       
+       # write dead nodes to file
+       curr_time = round(time.time())
+       dead_node_count_output = "%d\t%d" % (curr_time, len(dead_nodes))
+       dead_nodes_file_name = config.data_path + os.sep + "dead_nodes"
+       dead_nodes_file = open(dead_nodes_file_name, 'a')
+       for hostname in dead_nodes:
+           boot_state = node_dict[hostname]['boot_state']
+           last_updated = 0
+           if node_dict[hostname]['last_updated']: 
+               last_updated = node_dict[hostname]['last_updated'] 
+           dead_nodes_file.write("%(curr_time)d\t%(hostname)s\t%(boot_state)s\t%(last_updated)d\n" % \
+                                 locals())     
+       dead_nodes_file.close() 
+               
+       # write good node count 
+       ssh_result_output =  "%d\t%d" % (round(time.time()), ssh_count)
+       nodes_can_ssh_file_name = config.data_path + os.sep + "nodes_can_ssh"
+       nodes_can_ssh_file = open(nodes_can_ssh_file_name, 'a')
+       nodes_can_ssh_file.write(ssh_result_output)
+       nodes_can_ssh_file.close()
+       
+       if verbose:
+           print "nodes that can ssh: " + ssh_result_output
+           print "dead nodes: " + dead_node_count_output   
+       
+       
+# remove all nodes from a slice
+def empty_slice(config):
+
+       if config.verbose:
+           print "Removing %s from all nodes" % config.slice
+
+       all_nodes = [row['node_id'] for row in config.api.GetNodes(config.auth, {}, ['node_id'])]
+       config.api.DeleteSliceFromNodes(config.auth, slice, all_nodes)
+
+       
+# add slice to all nodes. 
+# make sure users key is up to date   
+def init_slice(config):
+
+    # make sure slice exists
+    slices = config.api.GetSlices(config.auth, [config.slice], \
+                                 ['slice_id', 'name', 'person_ids'])
+    if not slices:
+        raise "No such slice %s" % config.slice
+    slice = slices[0]
+
+    # make sure user is in slice
+    person = config.api.GetPersons(config.auth, config.auth['Username'], \
+                                  ['person_id', 'email', 'slice_ids', 'key_ids'])[0]
+    if slice['slice_id'] not in person['slice_ids']:
+        raise "%s not in %s slice. Must be added first" % \
+             (person['email'], slice['name'])
+        
+    # make sure user key is up to date 
+    current_key = open(key_path, 'r').readline().strip()
+    if len(current_key) == 0:
+        raise "Key cannot be empty" 
+
+    keys = config.api.GetKeys(auth, person['key_ids'])
+    if not keys:
+        if config.verbose:
+           print "Adding new key " + key_path
+        config.api.AddPersonKey(config.auth, person['person_id'], \
+                               {'key_type': 'ssh', 'key': current_key})
+
+    elif not filter(lambda k: k['key'] == current_key, keys):
+        if config.verbose:
+           print "%s was modified or is new. Updating PLC"
+        old_key = keys[0]
+        config.api.UpdateKey(config.auth, old_key['key_id'], \
+                            {'key': current_key})
+
+    # add slice to all nodes                   
+    if config.verbose:
+        print "Adding %s to all nodes" + slice
+    all_nodes = [row['node_id'] for row in \
+                config.api.GetNodes(config.auth, {}, ['node_id'])]
+    config.api.AddSliceToNodes(config.auth, config.slice, all_nodes)
+       
+       
+# create the fill/empty plot
+def plot_fill_empty():
+       #ticstep = 3600 # 1 hour
+       #plotlength = 36000 # 10 hours
+       ticstep = 1800
+       plotlength = 10800
+
+       all_nodes_file_name = config.data_path + os.sep + "nodes"       
+       nodes_in_slice_file_name = config.data_path + os.sep + "nodes_in_slice"
+       nodes_can_ssh_file_name = config.data_path + os.sep + "nodes_can_ssh"
+       nodes_good_comon_file_name = config.data_path + os.sep + "nodes_good"
+       
+       tmpfilename = tempfile.mktemp()
+       tmpfile = open(tmpfilename, 'w')
+       
+       starttime = -1
+       stoptime = -1
+       for datafilename in [all_nodes_file_name,
+                            nodes_in_slice_file_name, \
+                            nodes_can_ssh_file_name, \
+                            nodes_good_comon_file_name]: 
+               datafile = open(datafilename, 'r')
+               line1 = datafile.readline()
+               datafile.seek(-32,2)
+               line2 = datafile.readlines().pop()
+               thisstarttime = int(line1.split("\t")[0])
+               if starttime == -1 or thisstarttime < starttime:
+                       starttime = thisstarttime
+               thisstoptime = int(line2.split("\t")[0])
+               if stoptime == -1 or thisstoptime > stoptime:
+                       stoptime = thisstoptime
+       
+       stopx = stoptime
+       startx = max(starttime, stopx - plotlength)
+       starttime = startx
+       
+       tics = getTimeTicString(starttime, stoptime, ticstep)
+       
+       startdate = time.strftime("%b %m, %Y - %H:%M", time.localtime(startx))
+       stopdate = time.strftime("%H:%M", time.localtime(stopx))
+       
+       tmpfile.write("""
+       set term png
+       set output "%(plots_path)s/fill_empty.png"
+       
+       set title "Number of Nodes / Time - %(startdate)s to %(stopdate)s"
+       set xlabel "Time"
+       set ylabel "Number of Nodes"
+       
+       set xtics (%(tics)s)
+       set xrange[%(startx)d:%(stopx)d]
+       set yrange[0:950]
+       
+       plot "%(all_nodes_file_name)s" u 1:2 w lines title "Total Nodes", \
+               "%(nodes_in_slice_file_name)s" u 1:2 w lines title "Nodes in Slice", \
+               "%(nodes_good_comon_file_name)s" u 1:2 w lines title \
+                       "Healthy Nodes (according to CoMon)", \
+               "%(nodes_can_ssh_file_name)s" u 1:2 w lines title "Nodes Reachable by SSH"
+       
+       """ % locals())
+       
+       tmpfile.close()
+       
+       os.system("%s %s" % (gnuplot_path, tmpfilename))
+       
+       if os.path.exists(tmpfilename):
+               os.unlink(tmpfilename)
+
+
+
+config = Config(options)
+
+
+if config.slice == 'root':
+
+    if config.verbose:
+        print "Logging in as root"
+else:
+    # set up slice and add it to nodes
+    init_slice(config)
+    
+    # wait 15 mins for nodes to get the data
+    sleep(900)         
+
+# gather data
+count_nodes_can_ssh(config)    
+count_nodes_by_api(config)
+count_nodes_good_by_comon(config)
+    
+# update plots
+plot_fill_empty()
+#os.system("cp plots/*.png ~/public_html/planetlab/tests")                             
+
+# clean up
+empty_slice(config)            
+
diff --git a/node_ssh/nst_config b/node_ssh/nst_config
new file mode 100644 (file)
index 0000000..1f6a881
--- /dev/null
@@ -0,0 +1,14 @@
+# node_test_ssh config file
+
+NST_API_SERVER='https://www.planet-lab.org/PLCAPI/' 
+
+NST_KEY_PATH='/usr/share/planetlab/tests/nts/keys/nts.pub'
+
+NST_MULTIQUERY_PATH='/usr/share/codeploy'
+
+NST_SLICE='pl_nts'  
+
+NST_USER='USERNAME'
+
+NST_PASSWORD='PASSWORD'
+