blob: 8cabd117e7a595b79523b2217ef7dee626b8d067 [file] [log] [blame]
#!/bin/bash
#D provides access to the CORD POD DHCP havesting of IP addresses
PROG=$(echo $(basename $0) | sed -e 's/^cord-/cord /g')
usage() {
echo "usage: $PROG <sub-command> [options"
echo " go performs a harvest from the DHCP server"
echo " list list the currently harvested information"
echo " check check the error logs of the harvester for potential isseus"
echo " help this message"
}
COMMAND=$1; shift
SSH_OPT=
if [ $CORD_HEAD_NODE != "localhost" -a $CORD_HEAD_NODE != "127.0.0.1" ]; then
SSH_OPT="ssh -p $CORD_HEAD_NODE_PORT $CORD_HEAD_NODE_USER@$CORD_HEAD_NODE"
fi
case $COMMAND in
list)
DO_JSON=0
while [ $# -gt 0 ]; do
case $1 in
json|--json|-j)
DO_JSON=1
;;
help|--help|-h)
echo "usage $PROG list [--json|-j]"
echo " json display output as JSON object"
exit 0
;;
*)
>&2 "Unknoan option '$1'"
echo "usage: $PROG list [--json|-j]"
echo " json display output as JSON object"
exit 1
;;
esac
shift
done
if [ "$SSH_OPT x" == " x" -a ! -r /etc/bind/maas/dhcp_harvest.inc ]; then
>&2 echo "Unable to find the DHCP harvest file locally, please specify the server option if you are not on the head node."
exit 1
fi
if [ $DO_JSON -eq 1 ]; then
$SSH_OPT cat /etc/bind/maas/dhcp_harvest.inc | grep "^[^ ][^ ]*\s\s*IN A\s" | awk 'BEGIN{printf("[")} {printf("{\"name\":\"%s\",\"ip\":\"%s\",\"mac\":\"%s\"}", $1,$4,$6)} END{printf("]")}' | sed -e 's/}{/},{/g'
else
$SSH_OPT cat /etc/bind/maas/dhcp_harvest.inc | grep "^[^ ][^ ]*\s\s*IN A\s"
fi
;;
check)
RUNNING=$($SSH_OPT docker inspect --format="'{{ .State.Running }}'" harvester)
if [ $? -ne 0 ]; then
>&2 echo "Unable to execute docker or locate harvester container, if not running on the head node please specify the server address"
exit 1
fi
if [ "$RUNNING" == "false" ]; then
>&2 echo "The harvester container is not currently running, results may not be of value"
fi
OUT=$(mktemp)
$SSH_OPT docker logs harvester 2>&1 | grep -v "Warning: Permanently added" > $OUT
ERROR_CNT=$(cat $OUT | grep -i error | wc -l)
LAST_100=$(cat $OUT | tail -100 | grep -i error | wc -l)
ERR_FOUND=$(cat $OUT | tail -100 | grep -i "failed to update DNS server" | wc -l)
LAST_ERR=$(cat $OUT | grep -i error | tail -1)
rm -f $OUT
if [ $ERROR_CNT -ne 0 ]; then
if [ $LAST_100 -ne 0 ]; then
if [ $ERR_FOUND -ne 0 ]; then
echo "There is a recent error in the log that may indicate the harvester is unable to update the DNS server"
echo "This may be able to be fixed by restarting the DNS server, `sudo service bind9 restart`"
echo "Restarting the DNS server will not immediately clear this message"
else
echo "Recent errors have been found in the log, the last error was '$LAST_ERR'"
fi
else
echo "There are errors in the log, but there are not errors in the last 100 log messages, so the harvester is likely ok"
fi
else
echo "There are no errors in the log, so the harvester is likely OK"
fi
;;
go)
RESULT=$(curl --fail -sSL -XPOST http://$CORD_HEAD_NODE:8954/harvest 2>&1)
ERR=$?
if [ $ERR -ne 0 ]; then
>&2 "ERROR processing request, exit code '$ERR', '$RESULT'"
exit $ERR
fi
case $(echo $RESULT | jq .response | sed -e 's/"//g') in
OK)
echo "Havest complete"
;;
QUIET)
echo "Too many requests, please try in a few seconds"
;;
*)
>&2 "ERROR: unknown response '$RESULT'"
exit 1
;;
esac
;;
help|--help|-h)
usage
exit 0
;;
*)
>&2 echo "Unknown subcommand '$COMMAND'"
usage
exit 1
;;
esac