1 | #!/bin/bash |
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2 | # |
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3 | # 2014/03/26 Gabriel Moreau <Gabriel Moreau(A)univ-grenoble-alpes.fr> - Initial release |
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4 | # |
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5 | # From http://hd-recording.at/dokuwiki/doku.php?id=linux:tmux#tssh |
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6 | |
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7 | # Clean when Ctrl^C |
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8 | trap '[ -n "${base_path}" -a -d "/tmp/${base_path}" ] && rm -rf "/tmp/${base_path}"; exit 4;' QUIT INT TERM |
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9 | |
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10 | export PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin |
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11 | export LANG=C |
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12 | |
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13 | |
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14 | function usage() { |
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15 | cat <<END_USAGE |
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16 | NAME |
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17 | $(basename $0) - tmux cluster ssh |
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18 | |
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19 | SYNOPSIS |
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20 | $0 [-w number] [-f] [-v] [-c remote_cmd] <host1> <host2> <clusterssh class>... <hostM>- <hostN>+ |
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21 | |
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22 | OPTIONS |
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23 | -w windows to open (integer, default 16) |
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24 | -f fast, no nmap scan to eliminate sleeping computer |
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25 | -v verbose |
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26 | -c remote_cmd launch the remote command on hosts and exit |
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27 | -h help |
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28 | |
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29 | DESCRIPTION |
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30 | tssh can be use to launch terminal on many computer in parallel with tmux |
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31 | multiplexer and ssh. |
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32 | The tmux windows is splitted automatically. |
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33 | If you need more computers on the same windows, you can zoom in and out |
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34 | under gnome terminal with Ctrl- or Ctrl+. |
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35 | This must be done before launching tssh. |
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36 | |
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37 | On the command line, you can put host, login@host, clusterssh class. |
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38 | A host or a class can be remove from the list with a dash append |
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39 | and force to be in this one with a plus append. |
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40 | Example with the cluster ssh config below: |
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41 | |
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42 | tssh all team- node005 laptop04+ |
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43 | |
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44 | Is equivalent to: |
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45 | |
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46 | tssh srv-mail srv-dns srv-imap srv-web srv-proxy \\ |
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47 | node001 node002 node003 node004 \\ |
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48 | node101 node102 node103 node104 \\ |
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49 | node005 laptop04 |
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50 | |
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51 | The control command for tmux is Ctrl^b. |
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52 | You can switch from broadcast to a local machine with Ctrl^b Ctrl^b |
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53 | and move between machine with Ctrl^b ArrowKey. |
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54 | |
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55 | DEPENDS |
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56 | On Debian, you need the package |
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57 | |
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58 | apt-get install tmux ncurses-bin wamerican nmap |
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59 | |
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60 | wamerican (or wfrench...) is used to choose a random word in the file /usr/share/dict/words |
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61 | for each new tmux session. |
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62 | |
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63 | ncurses-bin is required for the tput command |
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64 | to automatically split your terminal into several small panels. |
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65 | nmap is only used for dynamic DNS domain and dynamic scan. |
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66 | This is not mandatory for general use. |
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67 | |
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68 | By default, tssh use tput to know the number of columns and lines of your terminal. |
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69 | It takes 10 lines and 40 columns for each windows by default. |
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70 | If tput is not installed, the default is 16 windows... |
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71 | |
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72 | CONFIGURATION |
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73 | The clusterssh config file ~/.csshrc is a key values file. |
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74 | The "clusters" is mandatory for clusterssh (not tssh) and define the other keys. |
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75 | Values could be computer list or other key... |
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76 | |
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77 | clusters = all server s1 s2 s3 node n1 n2 team switch |
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78 | all = server node team |
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79 | server = s1 s2 |
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80 | node = n1 n2 |
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81 | s1 = srv-mail srv-dns srv-imap |
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82 | s2 = srv-web srv-proxy |
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83 | n1 = node001 node002 node003 node004 |
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84 | n2 = node101 node102 node103 node104 |
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85 | team = pc01 pc06 laptop04 laptop05 laptop09 |
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86 | switch = root@switch01 root@switch05 root@switch17 |
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87 | |
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88 | The tssh config file (~/.tsshrc) can be use change the default parameters. |
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89 | |
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90 | #export split_number=16 |
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91 | export dyn_domain='mycompagny.local' |
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92 | #export fast='yes' |
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93 | #export verbose='yes' |
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94 | |
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95 | AUTHOR |
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96 | Gabriel Moreau |
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97 | |
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98 | COPYRIGHT |
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99 | Copyright (C) 2014-2018, LEGI UMR 5519 / CNRS UGA G-INP, Grenoble, France |
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100 | Licence : GNU GPL version 2 or later |
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101 | END_USAGE |
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102 | } |
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103 | |
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104 | export remote_command='' |
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105 | export split_number=16 |
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106 | if which tput > /dev/null |
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107 | then |
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108 | export split_number=$(( ($(tput lines)/ 10) * ($(tput cols)/ 40) )) |
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109 | fi |
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110 | |
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111 | export dyn_domain='' |
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112 | if [ -e "${HOME}/.tsshrc" ] |
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113 | then |
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114 | . "${HOME}/.tsshrc" |
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115 | fi |
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116 | |
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117 | # get options |
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118 | if [ $# -eq 0 ]; then usage; exit 1; fi |
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119 | while getopts "w:c:fvh" options |
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120 | do |
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121 | case ${options} in |
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122 | w) |
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123 | if echo ${OPTARG} | egrep -q '^[[:digit:]]+$' && [ ${OPTARG} -gt 0 ] |
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124 | then |
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125 | export split_number=${OPTARG} |
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126 | else |
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127 | usage |
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128 | exit 2 |
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129 | fi |
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130 | ;; |
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131 | c) |
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132 | if echo ${OPTARG} | egrep -q '[[:alpha:]]' |
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133 | then |
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134 | export remote_command=${OPTARG} |
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135 | else |
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136 | usage |
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137 | exit 2 |
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138 | fi |
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139 | ;; |
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140 | f) |
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141 | export fast='yes' |
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142 | ;; |
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143 | v) |
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144 | export verbose='yes' |
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145 | ;; |
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146 | h|*) |
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147 | usage |
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148 | exit 3 |
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149 | ;; |
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150 | esac |
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151 | done |
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152 | shift $((OPTIND - 1)) |
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153 | [[ $1 = "--" ]] && shift |
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154 | |
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155 | cd /tmp/ |
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156 | export base_path=$(mktemp -d tssh.XXXXXX) |
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157 | touch "/tmp/${base_path}/master" |
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158 | touch "/tmp/${base_path}/master-" |
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159 | touch "/tmp/${base_path}/master+" |
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160 | touch "/tmp/${base_path}/master--" |
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161 | touch "/tmp/${base_path}/master++" |
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162 | |
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163 | get_host_list () { |
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164 | local cluster |
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165 | local default_mode='' |
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166 | |
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167 | # set local mode |
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168 | if echo $1 | grep -- ^--mode= |
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169 | then |
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170 | default_mode=$(echo $1 | grep -- ^--mode= | cut -f 2 -d '=') |
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171 | shift |
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172 | fi |
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173 | |
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174 | for host in $* |
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175 | do |
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176 | local mode=${default_mode} |
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177 | local last_char="${host: -1}" |
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178 | if [ "${last_char}" == "-" -o "${last_char}" == "+" ] |
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179 | then |
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180 | mode="${last_char}" |
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181 | host="${host:0:${#host}-1}" |
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182 | fi |
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183 | |
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184 | # short host without login part if any |
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185 | local justhost=${host#*@} |
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186 | |
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187 | cluster=$(grep "^${justhost}\b" ${HOME}/.csshrc | cut -f 2 -d '=' | sed -e 's/^[[:space:]]*//;') |
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188 | if [ "${cluster}" == "" ] |
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189 | then |
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190 | # just a host to scan and add |
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191 | if [ "${fast}" != 'yes' -a "${mode}" != '-' ] |
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192 | then |
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193 | # test if exists host |
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194 | if host ${justhost} | grep -q 'not found' |
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195 | then |
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196 | [ "${verbose}" == 'yes' ] && echo "Warning: ${justhost} does not exists" |
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197 | continue |
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198 | fi |
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199 | if ! nmap -p 22 -sT -PN ${justhost} | grep -q '\bopen\b' |
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200 | then |
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201 | if host ${justhost}.${dyn_domain} | grep -q 'not found' || ! nmap -p 22 -sT -PN ${justhost}.${dyn_domain} | grep -q '\bopen\b' |
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202 | then |
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203 | [ "${verbose}" == 'yes' ] && echo "Warning: ${justhost} is down" |
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204 | continue |
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205 | else |
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206 | [ "${verbose}" == 'yes' ] && echo "Warning: remove ssh key of ${justhost}.${dyn_domain}" |
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207 | host=${justhost}.${dyn_domain} |
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208 | ssh-keygen -q -R $(LANG=C host ${justhost} | awk '{print $4}') |
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209 | fi |
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210 | fi |
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211 | fi |
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212 | [ "${verbose}" == 'yes' ] && echo "Warning: add ${host} on list with mode ${mode}" |
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213 | echo "${host}" >> "/tmp/${base_path}/master${mode}" |
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214 | else |
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215 | # cluster, jump in a recursive mode |
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216 | [ "${verbose}" == 'yes' ] && echo "Warning: recursive call for cluster ${justhost} (${cluster}), with mode ${mode}" |
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217 | cluster=$(get_host_list --mode=${mode} "${cluster}") |
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218 | fi |
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219 | done |
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220 | } |
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221 | declare -fx get_host_list |
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222 | |
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223 | get_host_list $@ |
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224 | cat "/tmp/${base_path}/master+" >> "/tmp/${base_path}/master" |
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225 | for f in $(grep . "/tmp/${base_path}/master-") |
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226 | do |
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227 | egrep "^${f}$" "/tmp/${base_path}/master+" && continue |
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228 | echo "${f}" >> "/tmp/${base_path}/master--" |
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229 | done |
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230 | for f in $(grep . "/tmp/${base_path}/master") |
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231 | do |
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232 | egrep "^${f}$" "/tmp/${base_path}/master--" && continue |
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233 | echo "${f}" >> "/tmp/${base_path}/master++" |
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234 | done |
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235 | |
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236 | # split master list in paquet of split_number computer |
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237 | sort -u "/tmp/${base_path}/master++" | split -l ${split_number} - /tmp/${base_path}/__splitted_ |
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238 | |
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239 | # wait is needed by time tmux session open and ssh time connection |
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240 | tempo=0.8 |
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241 | first_tempo=0 |
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242 | other_tempo=0 |
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243 | if [ -n "${remote_command}" ] |
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244 | then |
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245 | # add tempo after remote command |
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246 | other_tempo=${tempo} |
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247 | first_tempo="${tempo} ${other_tempo}" |
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248 | fi |
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249 | |
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250 | # loop on each split windows |
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251 | for f in $(ls -1 /tmp/${base_path}/ | grep ^__splitted_) |
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252 | do |
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253 | if [ "${verbose}" == 'yes' ] |
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254 | then |
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255 | echo "Info: next hosts to be splitted" |
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256 | cat "/tmp/${base_path}/${f}" | sed -e 's/^/ /;' |
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257 | sleep 5 |
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258 | fi |
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259 | |
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260 | session=$(shuf -n 1 /usr/share/dict/words | tr -cd "[:alpha:]") |
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261 | |
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262 | IFS=$'\n' host=($(cat "/tmp/${base_path}/${f}")) |
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263 | |
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264 | tmux -2 new-session -d -s $session "ssh ${host[0]} ${remote_command}; sleep ${first_tempo}" |
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265 | # wait ${tempo} second to let new session start... |
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266 | sleep ${tempo} |
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267 | |
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268 | for (( i=1 ; i < ${#host[@]} ; i++)) |
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269 | do |
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270 | # wait ${tempo} needed in case of ${remote_command} |
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271 | tmux splitw -t $session "ssh ${host[$i]} ${remote_command}; sleep ${other_tempo}" |
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272 | tmux select-layout tiled |
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273 | done |
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274 | |
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275 | tmux set-window-option synchronize-panes on > /dev/null |
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276 | tmux set-window-option -g utf8 on > /dev/null |
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277 | tmux set -g default-terminal screen-256color > /dev/null |
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278 | #tmux set-option -g set-clipboard on |
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279 | |
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280 | # Sane scrolling |
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281 | #tmux set -g mode-mouse on |
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282 | #tmux set -g mouse-resize-pane on |
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283 | #tmux set -g mouse-select-pane on |
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284 | #tmux set -g mouse-select-window on |
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285 | |
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286 | #set -g terminal-overrides 'xterm*:smcup@:rmcup@' |
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287 | |
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288 | # toggle mouse mode to allow mouse copy/paste |
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289 | # set mouse on with prefix m |
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290 | tmux bind m \ |
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291 | set -g mode-mouse on \; \ |
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292 | set -g mouse-select-pane on \; \ |
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293 | display 'Mouse: ON' > /dev/null |
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294 | # set -g mouse-resize-pane on \; \ |
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295 | #set -g mouse-select-window on \; \ |
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296 | # set mouse off with prefix M |
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297 | tmux bind M \ |
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298 | set -g mode-mouse off \; \ |
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299 | set -g mouse-select-pane off \; \ |
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300 | display 'Mouse: OFF' > /dev/null |
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301 | #set -g mouse-resize-pane off \; \ |
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302 | #set -g mouse-select-window off \; \ |
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303 | # toggle Broadcast |
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304 | tmux bind b set-window-option synchronize-panes |
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305 | |
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306 | tmux attach -t $session |
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307 | done |
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308 | |
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309 | # Clean temporary folder |
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310 | [ -d "/tmp/${base_path}" ] && rm -rf "/tmp/${base_path}" |
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