tests IO on Docker volume

test-docker-io.sh

#!/usr/bin/env bash
# tests IO on Docker volume
set -eox pipefail

TEST_DIR=/var/lib/docker/iotest
EC2_AVAIL_ZONE=`curl -s http://169.254.169.254/latest/meta-data/placement/availability-zone`
DATE=$(date +"%Y-%m-%dT%H:%M:%S")
TIMESTAMP=$(date +"%Y-%m-%d-%H%M%S")
HOST=`hostname -s`
TESTNAME="${HOST}-${TIMESTAMP}"
OUTFILE=iotest.${TESTNAME}.csv

sudo rm -rf $TEST_DIR
sudo mkdir -p $TEST_DIR
rm -f $OUTFILE
touch $OUTFILE

echo -n "${HOST};${EC2_AVAIL_ZONE};${DATE};" >>$OUTFILE
sudo fio --directory=$TEST_DIR --name "${TESTNAME}-read" \
  --direct=1 --rw=randread \
  --bs=16k --size=8G --numjobs=16 --time_based --runtime=60 \
  --group_reporting --norandommap --output-format=terse \
  | tee -a $OUTFILE

echo -n "${HOST};${EC2_AVAIL_ZONE};${DATE};" >>$OUTFILE
sudo fio --directory=$TEST_DIR --ioengine=psync --name "${TESTNAME}-write" \
  --direct=1 --rw=randwrite --bs=16k --size=8G --numjobs=16 --time_based \
  --runtime=60 --group_reporting --norandommap --output-format=terse \
  | tee -a $OUTFILE

sudo rm -rf $TEST_DIR