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|
#!/bin/bash
set -x
exec 2> /tmp/pops
if [ $# -lt 2 ]; then
echo "Invalid parameter count: '$#'" >&2
exit 1
fi
BASE="/opt/ldadp"
MODE="start"
while [ $# -gt 0 ]; do
var="$1"
shift
case "$var" in
--check) MODE="check" ;;
--start) MODE="start" ;;
--restart) MODE="restart" ;;
--base)
BASE="$1"
shift
;;
--) break ;;
--*)
echo "Unknown option '$var'" >&2
exit 1
;;
esac
done
if [ -z "$BASE" ] || [ ! -r "$BASE" ] || [ ! -d "$BASE" ]; then
echo "Basedir invalid: '$BASE'" >&2
exit 2
fi
cd "$BASE"
# At this point $@ should only be ldadp instance ids
inArray () {
local e
for e in "${@:2}"; do
[[ "x$e" == "x$1" ]] && return 0
done
return 1
}
RETVAL=0
if [ "$MODE" = "check" ]; then
# Dump list of known instances
systemctl list-units --state=loaded --no-legend | awk '{if ($1 ~ /^ldadp@.*\.service$/) print $1 " " $4}'
exit "$RETVAL"
elif [ "$MODE" = "restart" ]; then
# Restart only the given ID(s)
for id in "$@"; do
if ! [ -r "${BASE}/configs/${id}.cfg" ]; then
echo "Told to start ldadp for module '${id}', but no config file found; skipping." >&2
continue
fi
name="ldadp@${id}.service"
wanted+=( "${name}" )
echo "Restarting $name"
systemctl restart "$name" || RETVAL=1
done
exit "$RETVAL"
fi
# Regular Start/Stop logic
# Get loaded instances
declare -a known wanted
known=( $(systemctl list-units --state=loaded --no-legend | awk '{if ($1 ~ /^ldadp@.*\.service$/) print $1}') )
# Prepare names of wanted services and launch them
for id in "$@"; do
if ! [ -r "${BASE}/configs/${id}.cfg" ]; then
echo "Told to start ldadp for module '${id}', but no config file found; skipping." >&2
continue
fi
name="ldadp@${id}.service"
wanted+=( "${name}" )
echo "Starting $name"
systemctl enable "$name"
systemctl start "$name" || RETVAL=1
done
# Now stop the ones we don't need anymore
for name in "${known[@]}"; do
inArray "$name" "${wanted[@]}" && continue
echo "Stopping $name"
systemctl disable "$name"
systemctl stop "$name"
done
exit "$RETVAL"
|
