summaryrefslogtreecommitdiff
path: root/priv/templates/simplenode.runner
blob: f6d3f6c3cf2c7c78050d1b662a81fbfba27e375c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
#!/bin/sh
# -*- tab-width:4;indent-tabs-mode:nil -*-
# ex: ts=4 sw=4 et

RUNNER_SCRIPT_DIR=$(cd ${0%/*} && pwd)

RUNNER_BASE_DIR=${RUNNER_SCRIPT_DIR%/*}
RUNNER_ETC_DIR=$RUNNER_BASE_DIR/etc
RUNNER_LOG_DIR=$RUNNER_BASE_DIR/log
# Note the trailing slash on $PIPE_DIR/
PIPE_DIR=/tmp/$RUNNER_BASE_DIR/
RUNNER_USER=

# Make sure this script is running as the appropriate user
if [ ! -z "$RUNNER_USER" ] && [ `whoami` != "$RUNNER_USER" ]; then
    exec sudo -u $RUNNER_USER -i $0 $@
fi

# Make sure CWD is set to runner base dir
cd $RUNNER_BASE_DIR

# Make sure log directory exists
mkdir -p $RUNNER_LOG_DIR
# Identify the script name
SCRIPT=`basename $0`

# Parse out release and erts info
START_ERL=`cat $RUNNER_BASE_DIR/releases/start_erl.data`
ERTS_VSN=${START_ERL% *}
APP_VSN=${START_ERL#* }

# Use releases/VSN/vm.args if it exists otherwise use etc/vm.args
if [ -e "$RUNNER_BASE_DIR/releases/$APP_VSN/vm.args" ]; then
    VMARGS_PATH="$RUNNER_BASE_DIR/releases/$APP_VSN/vm.args"
else
    VMARGS_PATH="$RUNNER_ETC_DIR/vm.args"
fi

# Use releases/VSN/sys.config if it exists otherwise use etc/app.config
if [ -e "$RUNNER_BASE_DIR/releases/$APP_VSN/sys.config" ]; then
    CONFIG_PATH="$RUNNER_BASE_DIR/releases/$APP_VSN/sys.config"
else
    CONFIG_PATH="$RUNNER_ETC_DIR/app.config"
fi

# Extract the target node name from node.args
NAME_ARG=`egrep '^-s?name' $VMARGS_PATH`
if [ -z "$NAME_ARG" ]; then
    echo "vm.args needs to have either -name or -sname parameter."
    exit 1
fi

# Extract the target cookie
COOKIE_ARG=`grep '^-setcookie' $VMARGS_PATH`
if [ -z "$COOKIE_ARG" ]; then
    echo "vm.args needs to have a -setcookie parameter."
    exit 1
fi

# Add ERTS bin dir to our path
ERTS_PATH=$RUNNER_BASE_DIR/erts-$ERTS_VSN/bin

# Setup command to control the node
NODETOOL="$ERTS_PATH/escript $ERTS_PATH/nodetool $NAME_ARG $COOKIE_ARG"

# Check the first argument for instructions
case "$1" in
    start)
        # Make sure there is not already a node running
        RES=`$NODETOOL ping`
        if [ "$RES" = "pong" ]; then
            echo "Node is already running!"
            exit 1
        fi
        shift # remove $1
        RUN_PARAM=$(printf "\'%s\' " "$@")
        HEART_COMMAND="$RUNNER_BASE_DIR/bin/$SCRIPT start $RUN_PARAM"
        export HEART_COMMAND
        mkdir -p $PIPE_DIR
        $ERTS_PATH/run_erl -daemon $PIPE_DIR $RUNNER_LOG_DIR "exec $RUNNER_BASE_DIR/bin/$SCRIPT console $RUN_PARAM" 2>&1
        ;;

    stop)
        # Wait for the node to completely stop...
        case `uname -s` in
            Linux|Darwin|FreeBSD|DragonFly|NetBSD|OpenBSD)
                # PID COMMAND
                PID=`ps ax -o pid= -o command=|\
                    grep "$RUNNER_BASE_DIR/.*/[b]eam"|awk '{print $1}'`
                ;;
            SunOS)
                # PID COMMAND
                PID=`ps -ef -o pid= -o args=|\
                    grep "$RUNNER_BASE_DIR/.*/[b]eam"|awk '{print $1}'`
                ;;
            CYGWIN*)
                # UID PID PPID TTY STIME COMMAND
                PID=`ps -efW|grep "$RUNNER_BASE_DIR/.*/[b]eam"|awk '{print $2}'`
                ;;
        esac
        $NODETOOL stop
        ES=$?
        if [ "$ES" -ne 0 ]; then
            exit $ES
        fi
        while `kill -0 $PID 2>/dev/null`;
        do
            sleep 1
        done
        ;;

    restart)
        ## Restart the VM without exiting the process
        $NODETOOL restart
        ES=$?
        if [ "$ES" -ne 0 ]; then
            exit $ES
        fi
        ;;

    reboot)
        ## Restart the VM completely (uses heart to restart it)
        $NODETOOL reboot
        ES=$?
        if [ "$ES" -ne 0 ]; then
            exit $ES
        fi
        ;;

    ping)
        ## See if the VM is alive
        $NODETOOL ping
        ES=$?
        if [ "$ES" -ne 0 ]; then
            exit $ES
        fi
        ;;

    attach)
        # Make sure a node IS running
        RES=`$NODETOOL ping`
        ES=$?
        if [ "$ES" -ne 0 ]; then
            echo "Node is not running!"
            exit $ES
        fi

        shift
        exec $ERTS_PATH/to_erl $PIPE_DIR
        ;;

    console|console_clean)
        # .boot file typically just $SCRIPT (ie, the app name)
        # however, for debugging, sometimes start_clean.boot is useful:
        case "$1" in
            console)        BOOTFILE=$SCRIPT ;;
            console_clean)  BOOTFILE=start_clean ;;
        esac
        # Setup beam-required vars
        ROOTDIR=$RUNNER_BASE_DIR
        BINDIR=$ROOTDIR/erts-$ERTS_VSN/bin
        EMU=beam
        PROGNAME=`echo $0 | sed 's/.*\\///'`
        CMD="$BINDIR/erlexec -boot $RUNNER_BASE_DIR/releases/$APP_VSN/$BOOTFILE -mode embedded -config $CONFIG_PATH -args_file $VMARGS_PATH"
        export EMU
        export ROOTDIR
        export BINDIR
        export PROGNAME

        # Dump environment info for logging purposes
        echo "Exec: $CMD" -- ${1+"$@"}
        echo "Root: $ROOTDIR"

        # Log the startup
        logger -t "$SCRIPT[$$]" "Starting up"

        # Start the VM
        exec $CMD -- ${1+"$@"}
        ;;

    foreground)
        # start up the release in the foreground for use by runit
        # or other supervision services

        BOOTFILE=$SCRIPT
        FOREGROUNDOPTIONS="-noinput +Bd"

        # Setup beam-required vars
        ROOTDIR=$RUNNER_BASE_DIR
        BINDIR=$ROOTDIR/erts-$ERTS_VSN/bin
        EMU=beam
        PROGNAME=`echo $0 | sed 's/.*\///'`
        CMD="$BINDIR/erlexec $FOREGROUNDOPTIONS -boot $RUNNER_BASE_DIR/releases/$APP_VSN/$BOOTFILE -config $CONFIG_PATH -args_file $VMARGS_PATH"
        export EMU
        export ROOTDIR
        export BINDIR
        export PROGNAME

        # Dump environment info for logging purposes
        echo "Exec: $CMD" -- ${1+"$@"}
        echo "Root: $ROOTDIR"

        # Start the VM
        exec $CMD -- ${1+"$@"}
        ;;
    *)
        echo "Usage: $SCRIPT {start|foreground|stop|restart|reboot|ping|console|console_clean|attach}"
        exit 1
        ;;
esac

exit 0