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 ${_socket_wrapper_so}"
 104         fi
 105
 106         # Find absoluate path if only relative is given
 107         case "$_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 $0 <directory> setup [ <options>... ]
 124
 125 Options:
 126   -F            Disable failover (default: failover enabled)
 127   -N <file>     Nodes file (default: automatically generated)
 128   -n <num>      Number of nodes (default: 3)
 129   -P <file>     Public addresses file (default: automatically generated)
 130   -R            Use a command for the recovery lock (default: use a file)
 131   -S <library>  Socket wrapper shared library to preload (default: none)
 132   -6            Generate IPv6 IPs for nodes, public addresses (default: IPv4)
 133 EOF
 134
 135         exit 1
 136 }
 137
 138 local_daemons_setup ()
 139 {
 140         _disable_failover=false
 141         _nodes_file=""
 142         _num_nodes=3
 143         _public_addresses_file=""
 144         _recovery_lock_use_command=false
 145         _socket_wrapper=""
 146         _use_ipv6=false
 147
 148         set -e
 149
 150         while getopts "FN:n:P:RS:6h?" _opt ; do
 151                 case "$_opt" in
 152                 F) _disable_failover=true ;;
 153                 N) _nodes_file="$OPTARG" ;;
 154                 n) _num_nodes="$OPTARG" ;;
 155                 P) _public_addresses_file="$OPTARG" ;;
 156                 R) _recovery_lock_use_command=true ;;
 157                 S) _socket_wrapper="$OPTARG" ;;
 158                 6) _use_ipv6=true ;;
 159                 \?|h) local_daemons_setup_usage ;;
 160                 esac
 161         done
 162         shift $((OPTIND - 1))
 163
 164         mkdir -p "$directory"
 165
 166         _nodes_all="${directory}/nodes"
 167         if [ -n "$_nodes_file" ] ; then
 168                 cp "$_nodes_file" "$_nodes_all"
 169         else
 170                 setup_nodes "$_num_nodes" $_use_ipv6 >"$_nodes_all"
 171         fi
 172
 173         # If there are (strictly) greater than 2 nodes then we'll
 174         # "randomly" choose a node to have no public addresses
 175         _node_no_ips=-1
 176         if [ "$_num_nodes" -gt 2 ] ; then
 177                 _node_no_ips=$(($$ % _num_nodes))
 178         fi
 179
 180         _public_addresses_all="${directory}/public_addresses"
 181         if [ -n "$_public_addresses_file" ] ; then
 182                 cp "$_public_addresses_file" "$_public_addresses_all"
 183         else
 184                 setup_public_addresses "$_num_nodes" \
 185                                        $_node_no_ips \
 186                                        $_use_ipv6 >"$_public_addresses_all"
 187         fi
 188
 189         _recovery_lock="${directory}/rec.lock"
 190         if $_recovery_lock_use_command ; then
 191                 _helper="${CTDB_SCRIPTS_HELPER_BINDIR}/ctdb_mutex_fcntl_helper"
 192                 _recovery_lock="! ${_helper} ${_recovery_lock}"
 193         fi
 194
 195         if [ -n "$_socket_wrapper" ] ; then
 196                 setup_socket_wrapper "$_socket_wrapper"
 197         fi
 198
 199         for _n in $(seq 0 $((_num_nodes - 1))) ; do
 200                 # CTDB_TEST_SUITE_DIR needs to be correctly set so
 201                 # setup_ctdb_base() finds the etc-ctdb/ subdirectory
 202                 # and the test event script is correctly installed
 203                 # shellcheck disable=SC2034
 204                 CTDB_TEST_SUITE_DIR="$CTDB_TEST_DIR" \
 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" "${CTDB:-${VALGRIND:-} 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 local_daemons_print_log ()
 403 {
 404         if [ $# -ne 1 ] || [ "$1" = "-h" ] ; then
 405                 local_daemons_generic_usage "print-log"
 406         fi
 407
 408         _nodes="$1"
 409         shift
 410
 411         onnode_common
 412
 413         # shellcheck disable=SC2016
 414         # $CTDB_BASE must only be expanded under onnode, not in top-level shell
 415         onnode -q "$_nodes" 'echo ${CTDB_BASE}/log.ctdb' |
 416         while IFS='' read -r _l ; do
 417                 _dir=$(dirname "$_l")
 418                 _node=$(basename "$_dir")
 419                 # Add fake hostname after date and time, which are the
 420                 # first 2 words on each line
 421                 sed -e "s|^\\([^ ][^ ]* [^ ][^ ]*\\)|\\1 ${_node}|" "$_l"
 422         done |
 423         sort
 424
 425 }
 426
 427 usage ()
 428 {
 429         cat <<EOF
 430 usage: $0 <directory> <command> [ <options>... ]
 431
 432 Commands:
 433   setup          Set up daemon configuration according to given options
 434   start          Start specified daemon(s)
 435   stop           Stop specified daemon(s)
 436   onnode         Run a command in the environment of specified daemon(s)
 437   print-socket   Print the Unix domain socket used by specified daemon(s)
 438   print-log      Print logs for specified daemon(s) to stdout
 439
 440 All commands use <directory> for daemon configuration
 441
 442 Run command with -h option to see per-command usage
 443 EOF
 444
 445         exit 1
 446 }
 447
 448 if [ $# -lt 2 ] ; then
 449         usage
 450 fi
 451
 452 directory="$1"
 453 command="$2"
 454 shift 2
 455
 456 case "$command" in
 457 setup) local_daemons_setup "$@" ;;
 458 ssh) local_daemons_ssh "$@" ;; # Internal, not shown by usage()
 459 start) local_daemons_start "$@" ;;
 460 stop) local_daemons_stop "$@" ;;
 461 onnode) local_daemons_onnode "$@" ;;
 462 print-socket) local_daemons_print_socket "$@" ;;
 463 print-log) local_daemons_print_log "$@" ;;
 464 *) usage ;;
 465 esac