ctdb/tests/local_daemons.sh

   1 #!/bin/sh
   2
   3 set -u
   4
   5 export CTDB_TEST_MODE="yes"
   6
   7 # Following 2 lines may be modified by installation script
   8 export CTDB_TESTS_ARE_INSTALLED=false
   9 export CTDB_TEST_DIR=$(dirname "$0")
  10
  11 export TEST_SCRIPTS_DIR="${CTDB_TEST_DIR}/scripts"
  12
  13 . "${TEST_SCRIPTS_DIR}/common.sh"
  14
  15 # common.sh will set TEST_SUBDIR to a stupid value when installed
  16 # because common.sh is usually sourced by a test.  TEST_SUBDIR needs
  17 # to be correctly set so setup_ctdb_base() finds the etc-ctdb/
  18 # subdirectory and the test event script is correctly installed, so
  19 # fix it.
  20 TEST_SUBDIR="$CTDB_TEST_DIR"
  21
  22 if ! $CTDB_TESTS_ARE_INSTALLED ; then
  23         hdir="$CTDB_SCRIPTS_HELPER_BINDIR"
  24         export CTDB_EVENTD="${hdir}/ctdb-eventd"
  25         export CTDB_EVENT_HELPER="${hdir}/ctdb-event"
  26         export CTDB_LOCK_HELPER="${hdir}/ctdb_lock_helper"
  27         export CTDB_RECOVERY_HELPER="${hdir}/ctdb_recovery_helper"
  28         export CTDB_TAKEOVER_HELPER="${hdir}/ctdb_takeover_helper"
  29         export CTDB_CLUSTER_MUTEX_HELPER="${hdir}/ctdb_mutex_fcntl_helper"
  30 fi
  31
  32 ########################################
  33
  34 # If the given IP is hosted then print 2 items: maskbits and iface
  35 have_ip ()
  36 {
  37         _addr="$1"
  38
  39         case "$_addr" in
  40         *:*) _bits=128 ;;
  41         *)   _bits=32  ;;
  42         esac
  43
  44         _t=$(ip addr show to "${_addr}/${_bits}")
  45         [ -n "$_t" ]
  46 }
  47
  48 setup_nodes ()
  49 {
  50         _num_nodes="$1"
  51         _use_ipv6="$2"
  52
  53         _have_all_ips=true
  54         for _i in $(seq 0 $((_num_nodes - 1)) ) ; do
  55                 if $_use_ipv6 ; then
  56                         _j=$(printf "%04x" $((0x5f00 + 1 + _i)) )
  57                         _node_ip="fd00::5357:${_j}"
  58                         if have_ip "$_node_ip" ; then
  59                                 echo "$_node_ip"
  60                         else
  61                                 cat >&2 <<EOF
  62 ERROR: ${_node_ip} not on an interface, please add it
  63 EOF
  64                                 _have_all_ips=false
  65                         fi
  66                 else
  67                         _c=$(( _i / 100 ))
  68                         _d=$(( 1 + (_i % 100) ))
  69                         echo "127.0.${_c}.${_d}"
  70                 fi
  71         done
  72
  73         # Fail if we don't have all of the IPv6 addresses assigned
  74         $_have_all_ips
  75 }
  76
  77 setup_public_addresses ()
  78 {
  79         _num_nodes="$1"
  80         _node_no_ips="$2"
  81         _use_ipv6="$3"
  82
  83         for _i in $(seq 0 $((_num_nodes - 1)) ) ; do
  84                 if  [ "$_i" -eq "$_node_no_ips" ] ; then
  85                         continue
  86                 fi
  87
  88                 # 2 public addresses on most nodes, just to make
  89                 # things interesting
  90                 if $_use_ipv6 ; then
  91                         printf 'fc00:10::1:%x/64 lo\n' $((1 + _i))
  92                         printf 'fc00:10::2:%x/64 lo\n' $((1 + _i))
  93                 else
  94                         _c1=$(( 100 + (_i / 100) ))
  95                         _c2=$(( 200 + (_i / 100) ))
  96                         _d=$(( 1 + (_i % 100) ))
  97                         printf '192.168.%d.%d/24 lo\n' "$_c1" "$_d"
  98                         printf '192.168.%d.%d/24 lo\n' "$_c2" "$_d"
  99                 fi
 100         done
 101 }
 102
 103 setup_socket_wrapper ()
 104 {
 105         _socket_wrapper_so="$1"
 106
 107         _so="${directory}/libsocket-wrapper.so"
 108         if [ ! -f "$_socket_wrapper_so" ] ; then
 109                 die "$0 setup: Unable to find ${_socket_wrapper_so}"
 110         fi
 111
 112         # Find absoluate path if only relative is given
 113         case "$_socket_wrapper_so" in
 114         /*) : ;;
 115         *) _socket_wrapper_so="${PWD}/${_socket_wrapper_so}" ;;
 116         esac
 117
 118         rm -f "$_so"
 119         ln -s "$_socket_wrapper_so" "$_so"
 120
 121         _d="${directory}/sw"
 122         mkdir -p "$_d"
 123 }
 124
 125 local_daemons_setup_usage ()
 126 {
 127         cat >&2 <<EOF
 128 $0 <directory> setup [ <options>... ]
 129
 130 Options:
 131   -F            Disable failover (default: failover enabled)
 132   -N <file>     Nodes file (default: automatically generated)
 133   -n <num>      Number of nodes (default: 3)
 134   -P <file>     Public addresses file (default: automatically generated)
 135   -R            Use a command for the recovery lock (default: use a file)
 136   -S <library>  Socket wrapper shared library to preload (default: none)
 137   -6            Generate IPv6 IPs for nodes, public addresses (default: IPv4)
 138 EOF
 139
 140         exit 1
 141 }
 142
 143 local_daemons_setup ()
 144 {
 145         _disable_failover=false
 146         _nodes_file=""
 147         _num_nodes=3
 148         _public_addresses_file=""
 149         _recovery_lock_use_command=false
 150         _socket_wrapper=""
 151         _use_ipv6=false
 152
 153         set -e
 154
 155         while getopts "FN:n:P:RS:6h?" _opt ; do
 156                 case "$_opt" in
 157                 F) _disable_failover=true ;;
 158                 N) _nodes_file="$OPTARG" ;;
 159                 n) _num_nodes="$OPTARG" ;;
 160                 P) _public_addresses_file="$OPTARG" ;;
 161                 R) _recovery_lock_use_command=true ;;
 162                 S) _socket_wrapper="$OPTARG" ;;
 163                 6) _use_ipv6=true ;;
 164                 \?|h) local_daemons_setup_usage ;;
 165                 esac
 166         done
 167         shift $((OPTIND - 1))
 168
 169         mkdir -p "$directory"
 170
 171         _nodes_all="${directory}/nodes"
 172         if [ -n "$_nodes_file" ] ; then
 173                 cp "$_nodes_file" "$_nodes_all"
 174         else
 175                 setup_nodes "$_num_nodes" $_use_ipv6 >"$_nodes_all"
 176         fi
 177
 178         # If there are (strictly) greater than 2 nodes then we'll
 179         # "randomly" choose a node to have no public addresses
 180         _node_no_ips=-1
 181         if [ "$_num_nodes" -gt 2 ] ; then
 182                 _node_no_ips=$(($$ % _num_nodes))
 183         fi
 184
 185         _public_addresses_all="${directory}/public_addresses"
 186         if [ -n "$_public_addresses_file" ] ; then
 187                 cp "$_public_addresses_file" "$_public_addresses_all"
 188         else
 189                 setup_public_addresses "$_num_nodes" \
 190                                        $_node_no_ips \
 191                                        $_use_ipv6 >"$_public_addresses_all"
 192         fi
 193
 194         _recovery_lock="${directory}/rec.lock"
 195         if $_recovery_lock_use_command ; then
 196                 _helper="${CTDB_SCRIPTS_HELPER_BINDIR}/ctdb_mutex_fcntl_helper"
 197                 _recovery_lock="! ${_helper} ${_recovery_lock}"
 198         fi
 199
 200         if [ -n "$_socket_wrapper" ] ; then
 201                 setup_socket_wrapper "$_socket_wrapper"
 202         fi
 203
 204         for _n in $(seq 0 $((_num_nodes - 1))) ; do
 205                 setup_ctdb_base "$directory" "node.${_n}" \
 206                                 functions notify.sh debug-hung-script.sh
 207
 208                 cp "$_nodes_all" "${CTDB_BASE}/nodes"
 209
 210                 _public_addresses="${CTDB_BASE}/public_addresses"
 211
 212                 if  [ -z "$_public_addresses_file" ] && \
 213                             [ $_node_no_ips -eq "$_n" ] ; then
 214                         echo "Node ${_n} will have no public IPs."
 215                         : >"$_public_addresses"
 216                 else
 217                         cp "$_public_addresses_all" "$_public_addresses"
 218                 fi
 219
 220                 _node_ip=$(sed -n -e "$((_n + 1))p" "$_nodes_all")
 221
 222                 _db_dir="${CTDB_BASE}/db"
 223                 for _d in "volatile" "persistent" "state" ; do
 224                         mkdir -p "${_db_dir}/${_d}"
 225                 done
 226
 227                 cat >"${CTDB_BASE}/ctdb.conf" <<EOF
 228 [logging]
 229         location = file:${CTDB_BASE}/log.ctdb
 230         log level = INFO
 231
 232 [cluster]
 233         recovery lock = ${_recovery_lock}
 234         node address = ${_node_ip}
 235
 236 [database]
 237         volatile database directory = ${_db_dir}/volatile
 238         persistent database directory = ${_db_dir}/persistent
 239         state database directory = ${_db_dir}/state
 240
 241 [failover]
 242         disabled = ${_disable_failover}
 243
 244 [event]
 245         debug script = debug-hung-script.sh
 246 EOF
 247         done
 248 }
 249
 250 local_daemons_ssh_usage ()
 251 {
 252         cat >&2 <<EOF
 253 usage: $0 <directory> ssh [ -n ] <ip> <command>
 254 EOF
 255
 256         exit 1
 257 }
 258
 259 local_daemons_ssh ()
 260 {
 261         if [ $# -lt 2 ] ; then
 262                 local_daemons_ssh_usage
 263         fi
 264
 265         # Only try to respect ssh -n option, others can't be used so discard them
 266         _close_stdin=false
 267         while getopts "nh?" _opt ; do
 268                 case "$_opt" in
 269                 n) _close_stdin=true ;;
 270                 \?|h) local_daemons_ssh_usage ;;
 271                 *) : ;;
 272                 esac
 273         done
 274         shift $((OPTIND - 1))
 275
 276         if [ $# -lt 2 ] ; then
 277                 local_daemons_ssh_usage
 278         fi
 279
 280         _nodes="${directory}/nodes"
 281
 282         # IP adress of node. onnode can pass hostnames but not in these tests
 283         _ip="$1" ; shift
 284         # "$*" is command
 285
 286
 287         # Determine the correct CTDB base directory
 288         _num=$(awk -v ip="$_ip" '$1 == ip { print NR }' "$_nodes")
 289         _node=$((_num - 1))
 290         export CTDB_BASE="${directory}/node.${_node}"
 291
 292         if [ ! -d "$CTDB_BASE" ] ; then
 293                 die "$0 ssh: Unable to find base for node ${_ip}"
 294         fi
 295
 296         if $_close_stdin ; then
 297                 exec sh -c "$*" <&-
 298         else
 299                 exec sh -c "$*"
 300         fi
 301 }
 302
 303 onnode_common ()
 304 {
 305         # onnode will execute this, which fakes ssh against local daemons
 306         export ONNODE_SSH="${0} ${directory} ssh"
 307
 308         # onnode just needs the nodes file, so use the common one
 309         export CTDB_BASE="$directory"
 310 }
 311
 312 local_daemons_generic_usage ()
 313 {
 314         cat >&2 <<EOF
 315 usage: $0 <directory> ${1} <nodes>
 316
 317 <nodes> can be  "all", a node number or any specification supported by onnode
 318 EOF
 319
 320         exit 1
 321 }
 322
 323 local_daemons_start_socket_wrapper ()
 324 {
 325         _so="${directory}/libsocket-wrapper.so"
 326         _d="${directory}/sw"
 327
 328         if [ -d "$_d" ] && [ -f "$_so" ] ; then
 329                 export SOCKET_WRAPPER_DIR="$_d"
 330                 export LD_PRELOAD="$_so"
 331         fi
 332 }
 333
 334 local_daemons_start ()
 335 {
 336         if [ $# -ne 1 ] || [ "$1" = "-h" ] ; then
 337                 local_daemons_generic_usage "start"
 338         fi
 339
 340         local_daemons_start_socket_wrapper
 341
 342         _nodes="$1"
 343
 344         onnode_common
 345
 346         onnode "$_nodes" "${VALGRIND:-} ctdbd &"
 347 }
 348
 349 local_daemons_stop ()
 350 {
 351         if [ $# -ne 1 ] || [ "$1" = "-h" ] ; then
 352                 local_daemons_generic_usage "stop"
 353         fi
 354
 355         _nodes="$1"
 356
 357         onnode_common
 358
 359         onnode -p "$_nodes" "${VALGRIND:-} ${CTDB:-ctdb} shutdown"
 360 }
 361
 362 local_daemons_onnode_usage ()
 363 {
 364         cat >&2 <<EOF
 365 usage: $0 <directory> onnode <nodes> <command>...
 366
 367 <nodes> can be  "all", a node number or any specification supported by onnode
 368 EOF
 369
 370         exit 1
 371 }
 372
 373 local_daemons_onnode ()
 374 {
 375         if [ $# -lt 2 ] || [ "$1" = "-h" ] ; then
 376                 local_daemons_onnode_usage
 377         fi
 378
 379         _nodes="$1"
 380         shift
 381
 382         onnode_common
 383
 384         onnode "$_nodes" "$@"
 385 }
 386
 387 local_daemons_print_socket ()
 388 {
 389         if [ $# -ne 1 ] || [ "$1" = "-h" ] ; then
 390                 local_daemons_generic_usage "print-socket"
 391         fi
 392
 393         _nodes="$1"
 394         shift
 395
 396         onnode_common
 397
 398         _path="${CTDB_SCRIPTS_HELPER_BINDIR}/ctdb-path"
 399         onnode -q "$_nodes" "${VALGRIND:-} ${_path} socket ctdbd"
 400 }
 401
 402 usage ()
 403 {
 404         cat <<EOF
 405 usage: $0 <directory> <command> [ <options>... ]
 406
 407 Commands:
 408   setup          Set up daemon configuration according to given options
 409   start          Start specified daemon(s)
 410   stop           Stop specified daemon(s)
 411   onnode         Run a command in the environment of specified daemon(s)
 412   print-socket   Print the Unix domain socket used by specified daemon(s)
 413
 414 All commands use <directory> for daemon configuration
 415
 416 Run command with -h option to see per-command usage
 417 EOF
 418
 419         exit 1
 420 }
 421
 422 if [ $# -lt 2 ] ; then
 423         usage
 424 fi
 425
 426 directory="$1"
 427 command="$2"
 428 shift 2
 429
 430 case "$command" in
 431 setup) local_daemons_setup "$@" ;;
 432 ssh) local_daemons_ssh "$@" ;; # Internal, not shown by usage()
 433 start) local_daemons_start "$@" ;;
 434 stop) local_daemons_stop "$@" ;;
 435 onnode) local_daemons_onnode "$@" ;;
 436 print-socket) local_daemons_print_socket "$@" ;;
 437 *) usage ;;
 438 esac