source: fedkit/federate.sh @ c52c48d

axis_examplecompt_changesinfo-opsversion-1.30version-2.00version-3.01version-3.02
Last change on this file since c52c48d was 27b6aea, checked in by Ted Faber <faber@…>, 16 years ago

seer private pubsub support

  • Property mode set to 100755
File size: 5.8 KB
Line 
1#!/bin/sh
2
3# Set up a federated environment on a client.  Unmount all local file systems,
4# erase all local accounts and then bring in accounts and file systems from the
5# master testbed.  Once all that's done, restore client communication to the
6# local bossnode and execute any startup command passed in as arguments to this
7# script.
8
9
10# The file containing the DNS name of the current boss
11BOSSNODE="/usr/local/etc/emulab/bossnode"
12
13# Ports that the master gateway will forward
14PORTS="139 7777"
15# network cat command (to listen for the gateway)
16NC="/usr/bin/nc"
17# Emulab rc scripts directory
18RCDIR="/usr/local/etc/emulab/rc"
19
20# Emulab rc script to reset accounts and federation srcipt to start the smb
21# automount process.
22RCACCT="rc.accounts"
23SMBMOUNT="smbmount.`uname`.pl"
24
25# Find the right version of pkill.  For killing.
26if [ -x "/usr/bin/pkill" ] ; then 
27        PKILL="/usr/bin/pkill"
28else
29        if [ -x "/bin/pkill" ] ; then 
30                PKILL="/bin/pkill"
31        else
32                PKILL="echo"
33        fi
34fi
35
36if [ -x "/usr/bin/perl" ]; then
37    PERL="/usr/bin/perl"
38else
39    if [ -x "/usr/local/bin/perl" ]; then
40        PERL="/usr/local/bin/perl"
41    else
42        # Wing it...
43        PERL="perl"
44    fi
45fi
46
47# Find somewhere safe to stop
48cd /tmp
49
50if [ -f $BOSSNODE ]
51then
52        rm -f $BOSSNODE
53fi
54
55EMUDIR="/usr/local/etc/emulab/"
56
57# Find this experiment's stashed scripts.  (Perl for advanced parsing)
58PROJECT=`$EMUDIR/tmcc -b status | $PERL -ne '/ALLOCATED=([^\/]+)\/([^\s]+)/ && print "$1\n";'`
59EXP=`$EMUDIR/tmcc -b status | $PERL -ne '/ALLOCATED=([^\/]+)\/([^\s]+)/ && print "$2\n";'`
60SCRIPTDIR="/proj/$PROJECT/exp/$EXP/tmp"
61
62# Die if Scripts are not where they should be.  NB, this is checked by the
63# bootstrapper, too, so a failure here is unlikely.
64if [ -z "$SCRIPTDIR" ] ; then
65    echo "Can't find federation scripts.  Tmcc status says:"
66    $EMUDIR/tmcc -b status
67    exit 1;
68fi
69
70# Get our gateway, share, and mount user from the configuration file.
71# There's probably a way to get all three at once, but this works.
72GATEWAY=`$PERL -ne '/ControlGateway:\s+(.*)/i && print "$1\n";' $SCRIPTDIR/client.conf`
73SHARE=`$PERL -ne '/SMBShare:\s+(.*)/i && print "$1\n";' $SCRIPTDIR/client.conf`
74SMBUSER=`$PERL -ne '/ProjectUser:\s+(.*)/i && print "$1\n";' $SCRIPTDIR/client.conf`
75SMBPROJECT=`$PERL -ne '/ProjectName:\s+(.*)/i && print "$1\n";' $SCRIPTDIR/client.conf`
76
77GWIP=`host -N 10 $GATEWAY | $PERL -ne 's/.* has address // && print;'`
78# Copy the global hostnames file into /etc/hosts so this node can address
79# others in the experiment on other testbeds.  The extra steps preserves teh
80# localhost entry that's aliased to this host's name.
81grep 127\\.0\\.0\\.1 /etc/hosts > /tmp/hosts
82cat "$SCRIPTDIR/hosts" >> /tmp/hosts
83# If there's no node in this experiment called control, fake one so
84# that SEER events get through (if SEER's in use)
85if ! grep -q control $SCRIPTDIR/hosts; then
86        echo "$GWIP     control.$EXP.$PROJECT" >> /tmp/hosts
87fi
88cp /tmp/hosts /etc/hosts && rm /tmp/hosts
89
90# XXX:
91# The standard emulab rc.accounts script won't replace existing user accounts
92# with our new ones, so we have to patch it to do so.  This is obviously pretty
93# fragile and needs to change.  To make matters worse, our FBSD62-SMB images
94# contain the patched rc.accounts, so this patching step will fail there.
95cd "$EMUDIR/rc"
96patch -f < /tmp/rc.accounts.patch
97cd /tmp
98
99#
100# Spin on our gateway!
101#
102
103echo "Waiting for the tunnel to come online."
104
105for port in $PORTS
106do
107        until $NC -z $GATEWAY $port
108        do
109                sleep 5
110        done
111done
112
113#
114# Setup TMCC to use our gateway
115#
116
117echo "Configuring TMCC."
118echo $GATEWAY > $BOSSNODE
119
120
121#
122# Unmount stuff before messing with accounts
123#
124
125case `uname` in
126        "FreeBSD")
127                umount -A -f -t nfs,smbfs,cifs
128                ;;
129        "Linux")
130                # Linux doesn't believe in -A so pull the filesystems out of
131                # /etc/mtab and umount them individually
132                for f in `$PERL -nae 'print "$F[1]\n" if $F[2] =~ /(nfs|cifs|smbfs)/;' /etc/mtab`; do
133                        umount -f $f
134                done
135                ;;
136esac
137
138#
139# Setup new accounts
140#
141
142# Clear the cache, just in case:
143rm -f /var/emulab/boot/tmcc/accounts
144
145$RCDIR/rc.accounts reconfig
146
147#
148# Call the smbmount perl script, this invokes the automounter to mount the
149# needed smb filesystems.
150#
151echo "Mounting via SMB."
152$PERL "/tmp/$SMBMOUNT" $SHARE $GATEWAY $SMBUSER $SMBPROJECT
153
154echo "Restoring old bossnode"
155# remove bossnode override
156/bin/rm -f $BOSSNODE
157# Also clear any cached data that might interfere with rourte construction.
158/bin/rm -f /var/emulab/boot/tmcc/ifconfig
159
160# I remain unclear why ospfd seems screwed up after the resetting of accounts
161# and mounts.  This seems to fix it, but it's not very satisfying.  At this
162# point the federated topology is complete, so any problems with routing in a
163# partial topology -e.g. failed or partial bridging - that might have confused
164# the router should be gone.
165$PKILL ospf
166$PKILL gated
167# XXX Danger, hack ahead.  Apparently our FC6-SMB image and emulab disagree
168# about where gated lives.  This will alias it.
169if [ ! -x /usr/sbin/gated ] ; then 
170        if [ -x /sbin/gated ] ; then
171                ln /sbin/gated /usr/sbin/gated
172        fi
173fi
174/usr/local/etc/emulab/rc/rc.route boot
175
176# And restore the ifconfig information because SEER wants it. (SEER pulls this
177# from tmcc now
178# "$EMUDIR/tmcc" ifconfig > /var/emulab/boot/tmcc/ifconfig
179
180# SEER feels pain and confusion if times are wrong.  This lays a big lick on
181# ntp sets the time directly and then restarts it.  XXX FreeBSD incantation is
182# untested.
183
184case `uname` in
185        "FreeBSD")
186                /etc/rc.d/ntpd stop
187                /usr/sbin/ntpdate boss
188                /etc/rc.d/ntpd start
189                ;;
190        "Linux")
191                /etc/rc.d/init.d/ntpd stop
192                /usr/sbin/ntpdate boss
193                /etc/rc.d/init.d/ntpd start
194                ;;
195esac
196
197# Execute any command passed in as a startcmd.  This basically daisy chains the
198# startcmd.  This needs to become a perl script to have uniform behavior here.
199echo "*$1* *$2*"
200if [ ! -z "$1" ]; then 
201        echo "calling *$1* *$2*"
202        case `uname` in
203                "FreeBSD")
204                        su -l "$1" -c "$2"
205                        ;;
206                "Linux")
207                        su "$1" --command="$2"
208                        ;;
209        esac
210fi
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