run-in-pagsh: New script to run something in a PAG

[clinton/scripts.git] / run-in-pagsh

#!/usr/bin/pagsh.openafs
#
# Usage:
#
#    NAME=name run-in-pagsh command arguments ...
#
# Example:
#
#    NAME=interchange run-in-pagsh ~/interchange/bin/interchange
#
# Make sure that the ~/.run directory exists and is writable.
# See http://wiki2.hcoop.net/MemberManual/RunningUnattendedCommands
# for instructions on how to accomplish this.

# Sanity checks
if test -z "$NAME"; then
    echo "Error: you must set the NAME environment variable before" \
        "running this script."
    exit 1
elif test -z "$1"; then
    echo "Error: you must provide the command to run and its arguments."
    exit 1
elif test ! -d "~/.run"; then
    echo "Error: the ~/.run directory must exist before running this script."
    exit 1
fi

# Use a different PID file for each program.
K5PID=~/.run/${NAME}.pid

# The command to run.
CMD="$*"

# Your keytab file.
KTAB=/etc/keytabs/user.daemon/$USER

# Terminate current k5start process, if one is running.
if test -f "$K5PID"; then
    kill `cat -- "$K5PID"`
    rm -f "$K5PID"
fi

# Start fresh k5start daemon which will be refreshing tickets every 540 min
/usr/bin/k5start -U -b -K 540 -t -p "$K5PID" -f "$KTAB"

# Run actual service with arguments as provided on command line
$CMD