Created
August 25, 2016 18:01
-
-
Save jbrisbin/d89dd389736ac622b0bfc432a78a6fd2 to your computer and use it in GitHub Desktop.
Ansible dynamic inventory script that finds out what slaves are available in the current Mesos cluster. Assumes mesos-dns.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
#!/usr/bin/env python | |
import argparse | |
import os | |
import sys | |
import re | |
import urllib2 | |
try: | |
import json | |
except ImportError: | |
import simplejson as json | |
p = argparse.ArgumentParser(description='inventory script that queries a Mesos cluster for slave info') | |
grp = p.add_mutually_exclusive_group(required=True) | |
grp.add_argument('--list', action='store_true', help='list all hosts') | |
grp.add_argument('--host', help='get meta for specific host') | |
opts = p.parse_args(sys.argv[1:]) | |
mesosUrl = os.environ.get('MASTER', 'master.mesos:5050') | |
group = os.environ.get('GROUP', 'mesos') | |
data = {} | |
data[group] = [] | |
def get_tasks(): | |
slaves = json.loads(urllib2.urlopen(('http://%s/slaves' % mesosUrl)).read()) | |
for s in slaves["slaves"]: | |
data[group] += [s["hostname"]] | |
data[group] = list(set(data[group])) | |
return data | |
if opts.list: | |
print json.dumps(get_tasks()) | |
elif opts.host: | |
data = get_tasks() | |
print json.dumps({}) | |
else: | |
p.print_help() | |
sys.exit(0) |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment