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 $0 <directory> setup [ <options>... ]
 129
 130 Options:
 131   -F            Disable failover (default: failover enabled)
 132   -N <file>     Nodes file (default: automatically generated)
 133   -n <num>      Number of nodes (default: 3)
 134   -P <file>     Public addresses file (default: automatically generated)
 135   -S <library>  Socket wrapper shared library to preload (default: none)
 136   -6            Generate IPv6 IPs for nodes, public addresses (default: IPv4)
 137 EOF
 138
 139         exit 1
 140 }
 141
 142 local_daemons_setup ()
 143 {
 144         _disable_failover=false
 145         _nodes_file=""
 146         _num_nodes=3
 147         _public_addresses_file=""
 148         _socket_wrapper=""
 149         _use_ipv6=false
 150
 151         set -e
 152
 153         while getopts "FN:n:P:S:6h?" _opt ; do
 154                 case "$_opt" in
 155                 F) _disable_failover=true ;;
 156                 N) _nodes_file="$OPTARG" ;;
 157                 n) _num_nodes="$OPTARG" ;;
 158                 P) _public_addresses_file="$OPTARG" ;;
 159                 S) _socket_wrapper="$OPTARG" ;;
 160                 6) _use_ipv6=true ;;
 161                 \?|h) local_daemons_setup_usage ;;
 162                 esac
 163         done
 164         shift $((OPTIND - 1))
 165
 166         mkdir -p "$directory"
 167
 168         _nodes_all="${directory}/nodes"
 169         if [ -n "$_nodes_file" ] ; then
 170                 cp "$_nodes_file" "$_nodes_all"
 171         else
 172                 setup_nodes "$_num_nodes" $_use_ipv6 >"$_nodes_all"
 173         fi
 174
 175         # If there are (strictly) greater than 2 nodes then we'll
 176         # "randomly" choose a node to have no public addresses
 177         _node_no_ips=-1
 178         if [ "$_num_nodes" -gt 2 ] ; then
 179                 _node_no_ips=$(($$ % _num_nodes))
 180         fi
 181
 182         _public_addresses_all="${directory}/public_addresses"
 183         if [ -n "$_public_addresses_file" ] ; then
 184                 cp "$_public_addresses_file" "$_public_addresses_all"
 185         else
 186                 setup_public_addresses "$_num_nodes" \
 187                                        $_node_no_ips \
 188                                        $_use_ipv6 >"$_public_addresses_all"
 189         fi
 190
 191         if [ -n "$_socket_wrapper" ] ; then
 192                 setup_socket_wrapper "$_socket_wrapper"
 193         fi
 194
 195         for _n in $(seq 0 $((_num_nodes - 1))) ; do
 196                 setup_ctdb_base "$directory" "node.${_n}" \
 197                                 functions notify.sh debug-hung-script.sh
 198
 199                 cp "$_nodes_all" "${CTDB_BASE}/nodes"
 200
 201                 _public_addresses="${CTDB_BASE}/public_addresses"
 202
 203                 if  [ -z "$_public_addresses_file" ] && \
 204                             [ $_node_no_ips -eq "$_n" ] ; then
 205                         echo "Node ${_n} will have no public IPs."
 206                         : >"$_public_addresses"
 207                 else
 208                         cp "$_public_addresses_all" "$_public_addresses"
 209                 fi
 210
 211                 _node_ip=$(sed -n -e "$((_n + 1))p" "$_nodes_all")
 212
 213                 _db_dir="${CTDB_BASE}/db"
 214                 for _d in "volatile" "persistent" "state" ; do
 215                         mkdir -p "${_db_dir}/${_d}"
 216                 done
 217
 218                 cat >"${CTDB_BASE}/ctdb.conf" <<EOF
 219 [logging]
 220         location = file:${CTDB_BASE}/log.ctdb
 221         log level = INFO
 222
 223 [cluster]
 224         recovery lock = ${directory}/rec.lock
 225         node address = ${_node_ip}
 226
 227 [database]
 228         volatile database directory = ${_db_dir}/volatile
 229         persistent database directory = ${_db_dir}/persistent
 230         state database directory = ${_db_dir}/state
 231
 232 [failover]
 233         disabled = ${_disable_failover}
 234
 235 [event]
 236         debug script = debug-hung-script.sh
 237 EOF
 238         done
 239 }
 240
 241 local_daemons_ssh_usage ()
 242 {
 243         cat >&2 <<EOF
 244 usage: $0 <directory> ssh [ -n ] <ip> <command>
 245 EOF
 246
 247         exit 1
 248 }
 249
 250 local_daemons_ssh ()
 251 {
 252         if [ $# -lt 2 ] ; then
 253                 local_daemons_ssh_usage
 254         fi
 255
 256         # Only try to respect ssh -n option, others can't be used so discard them
 257         _close_stdin=false
 258         while getopts "nh?" _opt ; do
 259                 case "$_opt" in
 260                 n) _close_stdin=true ;;
 261                 \?|h) local_daemons_ssh_usage ;;
 262                 *) : ;;
 263                 esac
 264         done
 265         shift $((OPTIND - 1))
 266
 267         if [ $# -lt 2 ] ; then
 268                 local_daemons_ssh_usage
 269         fi
 270
 271         _nodes="${directory}/nodes"
 272
 273         # IP adress of node. onnode can pass hostnames but not in these tests
 274         _ip="$1" ; shift
 275         # "$*" is command
 276
 277
 278         # Determine the correct CTDB base directory
 279         _num=$(awk -v ip="$_ip" '$1 == ip { print NR }' "$_nodes")
 280         _node=$((_num - 1))
 281         export CTDB_BASE="${directory}/node.${_node}"
 282
 283         if [ ! -d "$CTDB_BASE" ] ; then
 284                 die "$0 ssh: Unable to find base for node ${_ip}"
 285         fi
 286
 287         if $_close_stdin ; then
 288                 exec sh -c "$*" <&-
 289         else
 290                 exec sh -c "$*"
 291         fi
 292 }
 293
 294 onnode_common ()
 295 {
 296         # onnode will execute this, which fakes ssh against local daemons
 297         export ONNODE_SSH="${0} ${directory} ssh"
 298
 299         # onnode just needs the nodes file, so use the common one
 300         export CTDB_BASE="$directory"
 301 }
 302
 303 local_daemons_generic_usage ()
 304 {
 305         cat >&2 <<EOF
 306 usage: $0 <directory> ${1} <nodes>
 307
 308 <nodes> can be  "all", a node number or any specification supported by onnode
 309 EOF
 310
 311         exit 1
 312 }
 313
 314 local_daemons_start_socket_wrapper ()
 315 {
 316         _so="${directory}/libsocket-wrapper.so"
 317         _d="${directory}/sw"
 318
 319         if [ -d "$_d" ] && [ -f "$_so" ] ; then
 320                 export SOCKET_WRAPPER_DIR="$_d"
 321                 export LD_PRELOAD="$_so"
 322         fi
 323 }
 324
 325 local_daemons_start ()
 326 {
 327         if [ $# -ne 1 ] || [ "$1" = "-h" ] ; then
 328                 local_daemons_generic_usage "start"
 329         fi
 330
 331         local_daemons_start_socket_wrapper
 332
 333         _nodes="$1"
 334
 335         onnode_common
 336
 337         onnode "$_nodes" "${VALGRIND:-} ctdbd &"
 338 }
 339
 340 local_daemons_stop ()
 341 {
 342         if [ $# -ne 1 ] || [ "$1" = "-h" ] ; then
 343                 local_daemons_generic_usage "stop"
 344         fi
 345
 346         _nodes="$1"
 347
 348         onnode_common
 349
 350         onnode -p "$_nodes" "${VALGRIND:-} ${CTDB:-ctdb} shutdown"
 351 }
 352
 353 local_daemons_onnode_usage ()
 354 {
 355         cat >&2 <<EOF
 356 usage: $0 <directory> onnode <nodes> <command>...
 357
 358 <nodes> can be  "all", a node number or any specification supported by onnode
 359 EOF
 360
 361         exit 1
 362 }
 363
 364 local_daemons_onnode ()
 365 {
 366         if [ $# -lt 2 ] || [ "$1" = "-h" ] ; then
 367                 local_daemons_onnode_usage
 368         fi
 369
 370         _nodes="$1"
 371         shift
 372
 373         onnode_common
 374
 375         onnode "$_nodes" "$@"
 376 }
 377
 378 local_daemons_print_socket ()
 379 {
 380         if [ $# -ne 1 ] || [ "$1" = "-h" ] ; then
 381                 local_daemons_generic_usage "print-socket"
 382         fi
 383
 384         _nodes="$1"
 385         shift
 386
 387         onnode_common
 388
 389         _path="${CTDB_SCRIPTS_HELPER_BINDIR}/ctdb-path"
 390         onnode -q "$_nodes" "${VALGRIND:-} ${_path} socket ctdbd"
 391 }
 392
 393 usage ()
 394 {
 395         cat <<EOF
 396 usage: $0 <directory> <command> [ <options>... ]
 397
 398 Commands:
 399   setup          Set up daemon configuration according to given options
 400   start          Start specified daemon(s)
 401   stop           Stop specified daemon(s)
 402   onnode         Run a command in the environment of specified daemon(s)
 403   print-socket   Print the Unix domain socket used by specified daemon(s)
 404
 405 All commands use <directory> for daemon configuration
 406
 407 Run command with -h option to see per-command usage
 408 EOF
 409
 410         exit 1
 411 }
 412
 413 if [ $# -lt 2 ] ; then
 414         usage
 415 fi
 416
 417 directory="$1"
 418 command="$2"
 419 shift 2
 420
 421 case "$command" in
 422 setup) local_daemons_setup "$@" ;;
 423 ssh) local_daemons_ssh "$@" ;; # Internal, not shown by usage()
 424 start) local_daemons_start "$@" ;;
 425 stop) local_daemons_stop "$@" ;;
 426 onnode) local_daemons_onnode "$@" ;;
 427 print-socket) local_daemons_print_socket "$@" ;;
 428 *) usage ;;
 429 esac