example st2search.py (don't forget to update the default URL from stackstorm.example.com)

st2search.py

#!/usr/bin/env python
"""
Search st2 using a pattern.

Usage:
  st2search.py [-u=<url>] (action|key|rule|trigger) <pattern>

Positional Arguments:
  <pattern> a regex to search against

Optional Arguments:
  -u --url=<endpoint>  StackStorm URL [default: stackstorm.example.com]

Alternative until st2 natively supports search.
See https://github.com/StackStorm/st2/issues/2973. Please upvote! :)
"""

from docopt import docopt
from pymongo import MongoClient

# only the following entities have a uid field
# for i in action apikey rule sensor trace trigger trigger_instance; do mongo st2 --eval "db.${i}_d_b.find({}, {"uid":1,"_id":0}).limit(1).shellPrint()" | tail -n +3 | grep $i >/dev/null 2>&1 && echo "$i yes" || echo "$i no"; done
SUPPORTED_ENTITIES = {
    'action': 'action_d_b',
    'rule': 'rule_d_b',
    'trigger': 'trigger_d_b',
    'key': 'key_value_pair_d_b'
}


def main(collection, pattern, url):
    db = MongoClient("mongodb://%s:27017" % url)['st2']
    for obj in db[collection].find({"uid": {"$regex": ".*%s.*" % pattern}}, {"uid": 1, "_id": 0}):
        print obj['uid']


def parse_collection(options):
    return [SUPPORTED_ENTITIES[k] for k, v in options.iteritems()
            if k in SUPPORTED_ENTITIES.keys() and v is True][0]


if __name__ == '__main__':
    args = docopt(__doc__, version='st2search 0.1')
    main(parse_collection(args), args['<pattern>'], args['--url'])