nwaku-compose/chkhealth.sh

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#!/usr/bin/env bash
# Optional argument to specify the ip address
ip_address="localhost:8645"
plain_text_out=false
# Parse command line arguments
POSITIONAL_ARGS=()
while [[ $# -gt 0 ]]; do
case $1 in
-p|--plain)
plain_text_out=true
shift # past argument
;;
-*|--*)
echo "Unknown option $1"
exit 1
;;
*)
POSITIONAL_ARGS+=("$1") # save positional arg
shift # past argument
;;
esac
done
set -- "${POSITIONAL_ARGS[@]}" # restore positional parameters
# Check if an IP address is provided as an argument
if [[ -n "$1" ]]; then
ip_address="$1"
fi
# Check if curl is available
if ! command -v curl &> /dev/null
then
echo "curl could not be found"
exit 1
fi
response=$(curl --connect-timeout 6 -s GET http://${ip_address}/health)
if [[ $? -ne 0 ]]; then
echo -e "$(date +'%H:%M:%S') - Node may not be running or not reachable at http://${ip_address}\n"
exit 1
fi
if [[ -z "${response}" ]]; then
echo -e "$(date +'%H:%M:%S') - node health status is: unknown\n"
exit 1
fi
if ! command -v jq &> /dev/null || [[ "$plain_text_out" = true ]]; then
echo -e "$(date +'%H:%M:%S') - node health status is: ${response}\n"
else
echo -e "$(date +'%H:%M:%S') - node health status is:\n"
echo "${response}" | jq . 2>/dev/null
if [[ $? -ne 0 ]]; then
echo -e "${response}"
fi
fi