1 | #!/bin/sh |
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2 | |
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3 | # Set up a federated environment on a client. Unmount all local file systems, |
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4 | # erase all local accounts and then bring in accounts and file systems from the |
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5 | # master testbed. Once all that's done, restore client communication to the |
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6 | # local bossnode and execute any startup command passed in as arguments to this |
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7 | # script. |
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8 | |
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9 | |
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10 | # The file containing the DNS name of the current boss |
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11 | BOSSNODE="/usr/local/etc/emulab/bossnode" |
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12 | |
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13 | # Ports that the master gateway will forward |
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14 | PORTS="139 7777" |
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15 | # network cat command (to listen for the gateway) |
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16 | NC="/usr/bin/nc" |
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17 | # Emulab rc scripts directory |
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18 | RCDIR="/usr/local/etc/emulab/rc" |
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19 | |
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20 | # Emulab rc script to reset accounts and federation srcipt to start the smb |
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21 | # automount process. |
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22 | RCACCT="rc.accounts" |
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23 | SMBMOUNT="smbmount.`uname`.pl" |
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24 | |
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25 | # Find the right version of pkill. For killing. |
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26 | if [ -x "/usr/bin/pkill" ] ; then |
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27 | PKILL="/usr/bin/pkill" |
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28 | else |
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29 | if [ -x "/bin/pkill" ] ; then |
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30 | PKILL="/bin/pkill" |
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31 | else |
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32 | PKILL="echo" |
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33 | fi |
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34 | fi |
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35 | |
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36 | if [ -x "/usr/bin/perl" ]; then |
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37 | PERL="/usr/bin/perl" |
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38 | else |
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39 | if [ -x "/usr/local/bin/perl" ]; then |
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40 | PERL="/usr/local/bin/perl" |
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41 | else |
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42 | # Wing it... |
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43 | PERL="perl" |
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44 | fi |
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45 | fi |
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46 | |
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47 | # Find somewhere safe to stop |
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48 | cd /tmp |
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49 | |
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50 | if [ -f $BOSSNODE ] |
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51 | then |
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52 | rm -f $BOSSNODE |
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53 | fi |
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54 | |
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55 | EMUDIR="/usr/local/etc/emulab/" |
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56 | |
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57 | # Find this experiment's stashed scripts. (Perl for advanced parsing) |
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58 | PROJECT=`$EMUDIR/tmcc -b status | $PERL -ne '/ALLOCATED=([^\/]+)\/([^\s]+)/ && print "$1\n";'` |
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59 | EXP=`$EMUDIR/tmcc -b status | $PERL -ne '/ALLOCATED=([^\/]+)\/([^\s]+)/ && print "$2\n";'` |
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60 | CONFIGDIR="/proj/$PROJECT/exp/$EXP/tmp" |
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61 | SCRIPTDIR="/usr/local/federation/bin" |
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62 | |
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63 | # Die if Scripts are not where they should be. NB, this is checked by the |
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64 | # bootstrapper, too, so a failure here is unlikely. |
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65 | if [ -z "$CONFIGDIR" ] ; then |
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66 | echo "Can't find federation configs. Tmcc status says:" |
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67 | $EMUDIR/tmcc -b status |
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68 | exit 1; |
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69 | fi |
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70 | |
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71 | # Leave the client configuration information where clients can use it |
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72 | mkdir -p "/usr/local/federation/etc" |
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73 | cp "$CONFIGDIR/client.conf" "/usr/local/federation/etc" |
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74 | chmod 644 "/usr/local/federation/etc/client.conf" |
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75 | # Capture accounts to remove for rc.fedaccounts |
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76 | $EMUDIR/tmcc -b accounts > /usr/local/federation/etc/old_accts |
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77 | chmod 644 "/usr/local/federation/etc/old_accts" |
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78 | |
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79 | # Get our gateway, share, and mount user from the configuration file. |
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80 | # There's probably a way to get all three at once, but this works. |
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81 | GATEWAY=`$PERL -ne '/ControlGateway:\s+(.*)/i && print "$1\n";' $CONFIGDIR/client.conf` |
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82 | SHARE=`$PERL -ne '/SMBShare:\s+(.*)/i && print "$1\n";' $CONFIGDIR/client.conf` |
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83 | SMBUSER=`$PERL -ne '/ProjectUser:\s+(.*)/i && print "$1\n";' $CONFIGDIR/client.conf` |
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84 | SMBPROJECT=`$PERL -ne '/ProjectName:\s+(.*)/i && print "$1\n";' $CONFIGDIR/client.conf` |
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85 | |
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86 | # If this is empty confusion reigns. Set a default. |
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87 | if [ -z "$SHARE" ]; then |
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88 | SHARE="USERS" |
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89 | fi |
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90 | |
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91 | # XXX: modified seer daemon to read a config file. Not in the tarfile yet. If |
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92 | # we see one, and there's a /usr/seer/backend/daemon.py, replace that one with |
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93 | # the local one. |
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94 | if [ -e /usr/seer/backend/daemon.py ] && [ -e $SCRIPTDIR/daemon.py ]; then |
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95 | /bin/cp $SCRIPTDIR/daemon.py /usr/seer/backend/daemon.py |
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96 | fi |
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97 | |
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98 | if [ -e /usr/seer/backend/experiment-setup.py ] && [ -e $SCRIPTDIR/experiment-setup.py ]; then |
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99 | /bin/cp $SCRIPTDIR/experiment-setup.py /usr/seer/backend/experiment-setup.py |
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100 | fi |
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101 | |
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102 | # Copy the seer.conf to the local /tmp if there is one |
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103 | |
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104 | if [ -e $CONFIGDIR/seer.conf ]; then |
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105 | /bin/cp $CONFIGDIR/seer.conf /tmp |
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106 | fi |
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107 | |
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108 | while [ -z "$GWIP" ]; do |
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109 | GWIP=`host -N 10 $GATEWAY | $PERL -ne 's/.* has address // && print;'` |
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110 | echo "GWIP is $GWIP" |
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111 | sleep 10 |
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112 | done |
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113 | # Copy the global hostnames file into /etc/hosts so this node can address |
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114 | # others in the experiment on other testbeds. The extra steps preserves teh |
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115 | # localhost entry that's aliased to this host's name. |
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116 | grep 127\\.0\\.0\\.1 /etc/hosts > /tmp/hosts |
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117 | cat "$CONFIGDIR/hosts" >> /tmp/hosts |
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118 | # If there's no node in this experiment called control, fake one so |
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119 | # that SEER events get through (if SEER's in use) |
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120 | if ! grep -q control $CONFIGDIR/hosts; then |
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121 | echo "$GWIP control.$EXP.$PROJECT" >> /tmp/hosts |
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122 | fi |
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123 | cp /tmp/hosts /etc/hosts && rm /tmp/hosts |
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124 | |
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125 | # |
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126 | # Spin on our gateway! |
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127 | # |
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128 | |
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129 | echo "Waiting for the tunnel to come online." |
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130 | |
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131 | for port in $PORTS |
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132 | do |
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133 | until $NC -z $GATEWAY $port |
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134 | do |
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135 | sleep 5 |
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136 | done |
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137 | done |
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138 | |
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139 | # |
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140 | # Setup TMCC to use our gateway |
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141 | # |
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142 | |
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143 | echo "Configuring TMCC." |
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144 | echo $GATEWAY > $BOSSNODE |
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145 | |
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146 | # Capture new accounts for rc.fedaccounts |
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147 | $EMUDIR/tmcc -b accounts > /usr/local/federation/etc/accts |
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148 | chmod 644 "/usr/local/federation/etc/accts" |
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149 | |
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150 | # |
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151 | # Unmount stuff before messing with accounts |
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152 | # |
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153 | |
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154 | case `uname` in |
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155 | "FreeBSD") |
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156 | umount -A -f -t nfs,smbfs,cifs |
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157 | ;; |
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158 | "Linux") |
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159 | # Linux doesn't believe in -A so pull the filesystems out of |
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160 | # /etc/mtab and umount them individually |
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161 | for f in `$PERL -nae 'print "$F[1]\n" if $F[2] =~ /(nfs|cifs|smbfs)/;' /etc/mtab`; do |
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162 | umount -f $f |
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163 | done |
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164 | ;; |
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165 | esac |
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166 | |
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167 | # |
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168 | # Setup new accounts |
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169 | # |
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170 | |
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171 | # Clear the cache, just in case: |
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172 | rm -f /var/emulab/boot/tmcc/accounts |
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173 | |
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174 | /usr/local/federation/bin/rc.fedaccounts |
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175 | |
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176 | # |
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177 | # Call the smbmount perl script, this invokes the automounter to mount the |
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178 | # needed smb filesystems. |
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179 | # |
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180 | echo "Mounting via SMB." |
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181 | $PERL "/usr/local/federation/bin/$SMBMOUNT" $SHARE $GATEWAY $SMBUSER $SMBPROJECT |
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182 | |
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183 | echo "Restoring old bossnode" |
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184 | # remove bossnode override |
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185 | /bin/rm -f $BOSSNODE |
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186 | # Also clear any cached data that might interfere with rourte construction. |
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187 | /bin/rm -f /var/emulab/boot/tmcc/ifconfig |
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188 | |
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189 | # if threr are external IP addresses that need to be configured, bring them up. |
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190 | $PERL /usr/local/federation/bin/config_from_tunnelip.pl |
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191 | |
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192 | # I remain unclear why ospfd seems screwed up after the resetting of accounts |
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193 | # and mounts. This seems to fix it, but it's not very satisfying. At this |
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194 | # point the federated topology is complete, so any problems with routing in a |
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195 | # partial topology -e.g. failed or partial bridging - that might have confused |
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196 | # the router should be gone. |
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197 | $PKILL ospf |
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198 | $PKILL gated |
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199 | # XXX Danger, hack ahead. Apparently our FC6-SMB image and emulab disagree |
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200 | # about where gated lives. This will alias it. |
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201 | if [ ! -x /usr/sbin/gated ] ; then |
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202 | if [ -x /sbin/gated ] ; then |
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203 | ln /sbin/gated /usr/sbin/gated |
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204 | fi |
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205 | fi |
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206 | /usr/local/etc/emulab/rc/rc.route boot |
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207 | |
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208 | # And restore the ifconfig information because SEER wants it. (SEER pulls this |
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209 | # from tmcc now |
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210 | # "$EMUDIR/tmcc" ifconfig > /var/emulab/boot/tmcc/ifconfig |
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211 | |
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212 | # SEER feels pain and confusion if times are wrong. This lays a big lick on |
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213 | # ntp sets the time directly and then restarts it. XXX FreeBSD incantation is |
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214 | # untested. |
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215 | |
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216 | case `uname` in |
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217 | "FreeBSD") |
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218 | /etc/rc.d/ntpd stop |
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219 | /usr/sbin/ntpdate boss |
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220 | /etc/rc.d/ntpd start |
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221 | ;; |
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222 | "Linux") |
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223 | /etc/rc.d/init.d/ntpd stop |
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224 | /usr/sbin/ntpdate boss |
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225 | /etc/rc.d/init.d/ntpd start |
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226 | ;; |
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227 | esac |
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228 | |
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229 | # Execute any command passed in as a startcmd. This basically daisy chains the |
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230 | # startcmd. This needs to become a perl script to have uniform behavior here. |
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231 | echo "*$1* *$2*" |
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232 | if [ ! -z "$1" ]; then |
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233 | echo "calling *$1* *$2*" |
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234 | case `uname` in |
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235 | "FreeBSD") |
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236 | su -l "$1" -c "$2" |
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237 | ;; |
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238 | "Linux") |
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239 | su "$1" --command="$2" |
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240 | ;; |
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241 | esac |
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242 | fi |
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