cosmos-sdk/contrib/localnet_liveness.sh

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#!/bin/bash
CNT=0
ITER=$1
SLEEP=$2
NUMBLOCKS=$3
NODEADDR=$4
if [ -z "$1" ]; then
echo "Need to input number of iterations to run..."
exit 1
fi
if [ -z "$2" ]; then
echo "Need to input number of seconds to sleep between iterations"
exit 1
fi
if [ -z "$3" ]; then
echo "Need to input block height to declare completion..."
exit 1
fi
if [ -z "$4" ]; then
echo "Need to input node address to poll..."
exit 1
fi
docker_containers=( $(docker ps -q -f name=simd --format='{{.Names}}') )
while [ ${CNT} -lt $ITER ]; do
curr_block=$(curl -s $NODEADDR:26657/status | jq -r '.result.sync_info.latest_block_height')
if [ ! -z ${curr_block} ] ; then
echo "Number of Blocks: ${curr_block}"
fi
if [ ! -z ${curr_block} ] && [ ${curr_block} -gt ${NUMBLOCKS} ]; then
echo "Number of blocks reached. Success!"
exit 0
fi
# Emulate network chaos:
#
# Every 10 blocks, pick a random container and restart it.
if ! ((${CNT} % 10)); then
rand_container=${docker_containers["$[RANDOM % ${#docker_containers[@]}]"]};
echo "Restarting random docker container ${rand_container}"
docker restart ${rand_container} &>/dev/null &
fi
let CNT=CNT+1
sleep $SLEEP
done
echo "Timeout reached. Failure!"
exit 1