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 CTDB_TESTS_ARE_INSTALLED=false
   9 CTDB_TEST_DIR=$(dirname "$0")
  10 export CTDB_TESTS_ARE_INSTALLED CTDB_TEST_DIR
  11
  12 export TEST_SCRIPTS_DIR="${CTDB_TEST_DIR}/scripts"
  13
  14 . "${TEST_SCRIPTS_DIR}/common.sh"
  15
  16 if ! $CTDB_TESTS_ARE_INSTALLED ; then
  17         hdir="$CTDB_SCRIPTS_HELPER_BINDIR"
  18         export CTDB_EVENTD="${hdir}/ctdb-eventd"
  19         export CTDB_EVENT_HELPER="${hdir}/ctdb-event"
  20         export CTDB_LOCK_HELPER="${hdir}/ctdb_lock_helper"
  21         export CTDB_RECOVERY_HELPER="${hdir}/ctdb_recovery_helper"
  22         export CTDB_TAKEOVER_HELPER="${hdir}/ctdb_takeover_helper"
  23         export CTDB_CLUSTER_MUTEX_HELPER="${hdir}/ctdb_mutex_fcntl_helper"
  24 fi
  25
  26 ########################################
  27
  28 # If the given IP is hosted then print 2 items: maskbits and iface
  29 have_ip ()
  30 {
  31         _addr="$1"
  32
  33         case "$_addr" in
  34         *:*) _bits=128 ;;
  35         *)   _bits=32  ;;
  36         esac
  37
  38         _t=$(ip addr show to "${_addr}/${_bits}")
  39         [ -n "$_t" ]
  40 }
  41
  42 setup_nodes ()
  43 {
  44         _num_nodes="$1"
  45         _use_ipv6="$2"
  46
  47         _have_all_ips=true
  48         for _i in $(seq 0 $((_num_nodes - 1)) ) ; do
  49                 if $_use_ipv6 ; then
  50                         _j=$(printf "%04x" $((0x5f00 + 1 + _i)) )
  51                         _node_ip="fd00::5357:${_j}"
  52                         if have_ip "$_node_ip" ; then
  53                                 echo "$_node_ip"
  54                         else
  55                                 cat >&2 <<EOF
  56 ERROR: ${_node_ip} not on an interface, please add it
  57 EOF
  58                                 _have_all_ips=false
  59                         fi
  60                 else
  61                         _c=$(( _i / 100 ))
  62                         _d=$(( 1 + (_i % 100) ))
  63                         echo "127.0.${_c}.${_d}"
  64                 fi
  65         done
  66
  67         # Fail if we don't have all of the IPv6 addresses assigned
  68         $_have_all_ips
  69 }
  70
  71 setup_public_addresses ()
  72 {
  73         _num_nodes="$1"
  74         _node_no_ips="$2"
  75         _use_ipv6="$3"
  76
  77         for _i in $(seq 0 $((_num_nodes - 1)) ) ; do
  78                 if  [ "$_i" -eq "$_node_no_ips" ] ; then
  79                         continue
  80                 fi
  81
  82                 # 2 public addresses on most nodes, just to make
  83                 # things interesting
  84                 if $_use_ipv6 ; then
  85                         printf 'fc00:10::1:%x/64 lo\n' $((1 + _i))
  86                         printf 'fc00:10::2:%x/64 lo\n' $((1 + _i))
  87                 else
  88                         _c1=$(( 100 + (_i / 100) ))
  89                         _c2=$(( 200 + (_i / 100) ))
  90                         _d=$(( 1 + (_i % 100) ))
  91                         printf '192.168.%d.%d/24 lo\n' "$_c1" "$_d"
  92                         printf '192.168.%d.%d/24 lo\n' "$_c2" "$_d"
  93                 fi
  94         done
  95 }
  96
  97 setup_socket_wrapper ()
  98 {
  99         _socket_wrapper_so="$1"
 100
 101         _so="${directory}/libsocket-wrapper.so"
 102         if [ ! -f "$_socket_wrapper_so" ] ; then
 103                 die "$0 setup: Unable to find ${_socket_wrapper_so}"
 104         fi
 105
 106         # Find absolute path if only relative is given
 107         case "$_socket_wrapper_so" in
 108         /*) : ;;
 109         *) _socket_wrapper_so="${PWD}/${_socket_wrapper_so}" ;;
 110         esac
 111
 112         rm -f "$_so"
 113         ln -s "$_socket_wrapper_so" "$_so"
 114
 115         _d="${directory}/sw"
 116         rm -rf "$_d"
 117         mkdir -p "$_d"
 118 }
 119
 120 local_daemons_setup_usage ()
 121 {
 122         cat >&2 <<EOF
 123 $0 <directory> setup [ <options>... ]
 124
 125 Options:
 126   -F            Disable failover (default: failover enabled)
 127   -N <file>     Nodes file (default: automatically generated)
 128   -n <num>      Number of nodes (default: 3)
 129   -P <file>     Public addresses file (default: automatically generated)
 130   -R            Use a command for the recovery lock (default: use a file)
 131   -r <time>     Like -R and set recheck interval to <time> (default: use a file)
 132   -S <library>  Socket wrapper shared library to preload (default: none)
 133   -6            Generate IPv6 IPs for nodes, public addresses (default: IPv4)
 134 EOF
 135
 136         exit 1
 137 }
 138
 139 local_daemons_setup ()
 140 {
 141         _disable_failover=false
 142         _nodes_file=""
 143         _num_nodes=3
 144         _public_addresses_file=""
 145         _recovery_lock_use_command=false
 146         _recovery_lock_recheck_interval=""
 147         _socket_wrapper=""
 148         _use_ipv6=false
 149
 150         set -e
 151
 152         while getopts "FN:n:P:Rr:S:6h?" _opt ; do
 153                 case "$_opt" in
 154                 F) _disable_failover=true ;;
 155                 N) _nodes_file="$OPTARG" ;;
 156                 n) _num_nodes="$OPTARG" ;;
 157                 P) _public_addresses_file="$OPTARG" ;;
 158                 R) _recovery_lock_use_command=true ;;
 159                 r) _recovery_lock_use_command=true
 160                    _recovery_lock_recheck_interval="$OPTARG"
 161                    ;;
 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_dir="${directory}/shared/.ctdb"
 195         mkdir -p "$_recovery_lock_dir"
 196         _recovery_lock="${_recovery_lock_dir}/rec.lock"
 197         if $_recovery_lock_use_command ; then
 198                 _helper="${CTDB_SCRIPTS_HELPER_BINDIR}/ctdb_mutex_fcntl_helper"
 199                 _t="! ${_helper} ${_recovery_lock}"
 200                 if [ -n "$_recovery_lock_recheck_interval" ] ; then
 201                         _t="${_t} ${_recovery_lock_recheck_interval}"
 202                 fi
 203                 _recovery_lock="$_t"
 204         fi
 205
 206         if [ -n "$_socket_wrapper" ] ; then
 207                 setup_socket_wrapper "$_socket_wrapper"
 208         fi
 209
 210         for _n in $(seq 0 $((_num_nodes - 1))) ; do
 211                 # CTDB_TEST_SUITE_DIR needs to be correctly set so
 212                 # setup_ctdb_base() finds the etc-ctdb/ subdirectory
 213                 # and the test event script is correctly installed
 214                 # shellcheck disable=SC2034
 215                 CTDB_TEST_SUITE_DIR="$CTDB_TEST_DIR" \
 216                            setup_ctdb_base "$directory" "node.${_n}" \
 217                                 functions notify.sh debug-hung-script.sh
 218
 219                 cp "$_nodes_all" "${CTDB_BASE}/nodes"
 220
 221                 _public_addresses="${CTDB_BASE}/public_addresses"
 222
 223                 if  [ -z "$_public_addresses_file" ] && \
 224                             [ $_node_no_ips -eq "$_n" ] ; then
 225                         echo "Node ${_n} will have no public IPs."
 226                         : >"$_public_addresses"
 227                 else
 228                         cp "$_public_addresses_all" "$_public_addresses"
 229                 fi
 230
 231                 _node_ip=$(sed -n -e "$((_n + 1))p" "$_nodes_all")
 232
 233                 _db_dir="${CTDB_BASE}/db"
 234                 for _d in "volatile" "persistent" "state" ; do
 235                         mkdir -p "${_db_dir}/${_d}"
 236                 done
 237
 238                 cat >"${CTDB_BASE}/ctdb.conf" <<EOF
 239 [logging]
 240         location = file:${CTDB_BASE}/log.ctdb
 241         log level = INFO
 242
 243 [cluster]
 244         recovery lock = ${_recovery_lock}
 245         node address = ${_node_ip}
 246
 247 [database]
 248         volatile database directory = ${_db_dir}/volatile
 249         persistent database directory = ${_db_dir}/persistent
 250         state database directory = ${_db_dir}/state
 251
 252 [failover]
 253         disabled = ${_disable_failover}
 254
 255 [event]
 256         debug script = debug-hung-script.sh
 257 EOF
 258         done
 259 }
 260
 261 local_daemons_ssh_usage ()
 262 {
 263         cat >&2 <<EOF
 264 usage: $0 <directory> ssh [ -n ] <ip> <command>
 265 EOF
 266
 267         exit 1
 268 }
 269
 270 local_daemons_ssh ()
 271 {
 272         if [ $# -lt 2 ] ; then
 273                 local_daemons_ssh_usage
 274         fi
 275
 276         # Only try to respect ssh -n option, others can't be used so discard them
 277         _close_stdin=false
 278         while getopts "nh?" _opt ; do
 279                 case "$_opt" in
 280                 n) _close_stdin=true ;;
 281                 \?|h) local_daemons_ssh_usage ;;
 282                 *) : ;;
 283                 esac
 284         done
 285         shift $((OPTIND - 1))
 286
 287         if [ $# -lt 2 ] ; then
 288                 local_daemons_ssh_usage
 289         fi
 290
 291         _nodes="${directory}/nodes"
 292
 293         # IP adress of node. onnode can pass hostnames but not in these tests
 294         _ip="$1" ; shift
 295         # "$*" is command
 296
 297
 298         # Determine the correct CTDB base directory
 299         _num=$(awk -v ip="$_ip" '$1 == ip { print NR }' "$_nodes")
 300         _node=$((_num - 1))
 301         export CTDB_BASE="${directory}/node.${_node}"
 302
 303         if [ ! -d "$CTDB_BASE" ] ; then
 304                 die "$0 ssh: Unable to find base for node ${_ip}"
 305         fi
 306
 307         if $_close_stdin ; then
 308                 exec sh -c "$*" </dev/null
 309         else
 310                 exec sh -c "$*"
 311         fi
 312 }
 313
 314 onnode_common ()
 315 {
 316         # onnode will execute this, which fakes ssh against local daemons
 317         export ONNODE_SSH="${0} ${directory} ssh"
 318
 319         # onnode just needs the nodes file, so use the common one
 320         export CTDB_BASE="$directory"
 321 }
 322
 323 local_daemons_generic_usage ()
 324 {
 325         cat >&2 <<EOF
 326 usage: $0 <directory> ${1} <nodes>
 327
 328 <nodes> can be  "all", a node number or any specification supported by onnode
 329 EOF
 330
 331         exit 1
 332 }
 333
 334 local_daemons_start_socket_wrapper ()
 335 {
 336         _so="${directory}/libsocket-wrapper.so"
 337         _d="${directory}/sw"
 338
 339         if [ -d "$_d" ] && [ -f "$_so" ] ; then
 340                 export SOCKET_WRAPPER_DIR="$_d"
 341                 export LD_PRELOAD="$_so"
 342         fi
 343 }
 344
 345 local_daemons_start ()
 346 {
 347         if [ $# -ne 1 ] || [ "$1" = "-h" ] ; then
 348                 local_daemons_generic_usage "start"
 349         fi
 350
 351         local_daemons_start_socket_wrapper
 352
 353         _nodes="$1"
 354
 355         onnode_common
 356
 357         onnode -i "$_nodes" "${VALGRIND:-} ctdbd"
 358 }
 359
 360 local_daemons_stop ()
 361 {
 362         if [ $# -ne 1 ] || [ "$1" = "-h" ] ; then
 363                 local_daemons_generic_usage "stop"
 364         fi
 365
 366         _nodes="$1"
 367
 368         onnode_common
 369
 370         onnode -p "$_nodes" \
 371                 "if [ -e \"\${CTDB_BASE}/run/ctdbd.pid\" ] ; then \
 372                         ${CTDB:-${VALGRIND:-} ctdb} shutdown ; \
 373                  fi"
 374 }
 375
 376 local_daemons_onnode_usage ()
 377 {
 378         cat >&2 <<EOF
 379 usage: $0 <directory> onnode <nodes> <command>...
 380
 381 <nodes> can be  "all", a node number or any specification supported by onnode
 382 EOF
 383
 384         exit 1
 385 }
 386
 387 local_daemons_onnode ()
 388 {
 389         if [ $# -lt 2 ] || [ "$1" = "-h" ] ; then
 390                 local_daemons_onnode_usage
 391         fi
 392
 393         _nodes="$1"
 394         shift
 395
 396         onnode_common
 397
 398         onnode "$_nodes" "$@"
 399 }
 400
 401 local_daemons_print_socket ()
 402 {
 403         if [ $# -ne 1 ] || [ "$1" = "-h" ] ; then
 404                 local_daemons_generic_usage "print-socket"
 405         fi
 406
 407         _nodes="$1"
 408         shift
 409
 410         onnode_common
 411
 412         _path="${CTDB_SCRIPTS_HELPER_BINDIR}/ctdb-path"
 413         onnode -q "$_nodes" "${VALGRIND:-} ${_path} socket ctdbd"
 414 }
 415
 416 local_daemons_print_log ()
 417 {
 418         if [ $# -ne 1 ] || [ "$1" = "-h" ] ; then
 419                 local_daemons_generic_usage "print-log"
 420         fi
 421
 422         _nodes="$1"
 423         shift
 424
 425         onnode_common
 426
 427         # shellcheck disable=SC2016
 428         # $CTDB_BASE must only be expanded under onnode, not in top-level shell
 429         onnode -q "$_nodes" 'echo ${CTDB_BASE}/log.ctdb' |
 430         while IFS='' read -r _l ; do
 431                 _dir=$(dirname "$_l")
 432                 _node=$(basename "$_dir")
 433                 # Add fake hostname after date and time, which are the
 434                 # first 2 words on each line
 435                 sed -e "s|^\\([^ ][^ ]* [^ ][^ ]*\\)|\\1 ${_node}|" "$_l"
 436         done |
 437         sort
 438
 439 }
 440
 441 local_daemons_tail_log ()
 442 {
 443         if [ $# -ne 1 ] || [ "$1" = "-h" ] ; then
 444                 local_daemons_generic_usage "tail-log"
 445         fi
 446
 447         _nodes="$1"
 448         shift
 449
 450         onnode_common
 451
 452         # shellcheck disable=SC2016,SC2046
 453         # $CTDB_BASE must only be expanded under onnode, not in top-level shell
 454         # Intentional word splitting to separate log filenames
 455         tail -f $(onnode -q "$_nodes" 'echo ${CTDB_BASE}/log.ctdb')
 456 }
 457
 458 usage ()
 459 {
 460         cat <<EOF
 461 usage: $0 <directory> <command> [ <options>... ]
 462
 463 Commands:
 464   setup          Set up daemon configuration according to given options
 465   start          Start specified daemon(s)
 466   stop           Stop specified daemon(s)
 467   onnode         Run a command in the environment of specified daemon(s)
 468   print-socket   Print the Unix domain socket used by specified daemon(s)
 469   print-log      Print logs for specified daemon(s) to stdout
 470   tail-log       Follow logs for specified daemon(s) to stdout
 471
 472 All commands use <directory> for daemon configuration
 473
 474 Run command with -h option to see per-command usage
 475 EOF
 476
 477         exit 1
 478 }
 479
 480 if [ $# -lt 2 ] ; then
 481         usage
 482 fi
 483
 484 directory="$1"
 485 command="$2"
 486 shift 2
 487
 488 case "$command" in
 489 setup) local_daemons_setup "$@" ;;
 490 ssh) local_daemons_ssh "$@" ;; # Internal, not shown by usage()
 491 start) local_daemons_start "$@" ;;
 492 stop) local_daemons_stop "$@" ;;
 493 onnode) local_daemons_onnode "$@" ;;
 494 print-socket) local_daemons_print_socket "$@" ;;
 495 print-log) local_daemons_print_log "$@" ;;
 496 tail-log) local_daemons_tail_log "$@" ;;
 497 *) usage ;;
 498 esac