Use AWS hosts for vegeta load test.

loadtest.sh

#!/bin/bash
# assumes hosts are tagged with tag_Name_marketplace-stage-loadtest
# ansible tag_Name_marketplace-stage-loadtest -m copy -a "src=./vegeta dest=/tmp/vegeta" to copy vegeta to the load test hosts.

set -e

URL='https://marketplace.allizom.org/'
RATE=10
DURATION="1s"

TMPDIR="$(mktemp -d)"
TMPFILE="$(mktemp)"
trap "rm -rf \"${TMPDIR}\" \"${TMPFILE}\"" EXIT

cat > "${TMPFILE}" <<SCRIPT
ulimit -n 100000
echo 'GET ${URL}' | /tmp/vegeta attack -rate=${RATE} -duration=${DURATION} -output=/tmp/vegeta.result
SCRIPT

reports=""
for h in $(ansible --list-hosts tag_Name_marketplace-stage-loadtest); do
    scp -q "${TMPFILE}" "$h":"${TMPFILE}"
    (
        ssh -tt -q "$h" "sudo /bin/bash \"${TMPFILE}\""
        scp -q "$h":/tmp/vegeta.result "${TMPDIR}/$h.vr"
    ) &
    reports=",${TMPDIR}/$h.vr"
done
wait

reports=${reports:1}

./vegeta report -input="${reports}"