#!/usr/bin/env python3

import json
import subprocess
import pprint

cephhealthcmd = "/usr/bin/ceph health -f json"
process = subprocess.Popen(cephhealthcmd.split(), stdout=subprocess.PIPE)
output, error = process.communicate()

jsonoutput = json.loads(output.decode())
checkkeys = []
for dkeys in jsonoutput['checks'].keys():
  checkkeys.append(dkeys)

print(' '.join(sorted(checkkeys)))