Generate healthchecks

hc-cmd.py

from __future__ import print_function

import os
import json

try:
    from urllib.request import Request, urlopen  # Python 3
except ImportError:
    from urllib2 import Request, urlopen  # Python 2

req = Request(os.getenv("HC_API_URL", ""))
req.add_header('X-Api-Key', os.getenv("HC_API_KEY", ""))

checks = [
    {"name": c["name"], "url":c["ping_url"]}
    for c in json.load(urlopen(req))["checks"]
]


def generateCmd(name, url):
    str = 'if [ -z `sudo docker ps -q --no-trunc | grep $(sudo docker-compose ps -q {name})` ]; '
    str += 'then curl -fsS --retry 3 {url}/fail; '
    str += 'else curl -fsS --retry 3 {url}; '
    str += 'fi'
    return str.format(name=name, url=url)


cmds = [generateCmd(c["name"], c["url"]) for c in checks]

print("\n".join(cmds))