Mongodb Lookup error in Ansible playbook - mongodb

Question

I am using mongoDB with ansible where I am trying to query to mongodb collection using ansible playbook.
main.yaml(vars file where i have declared all variables)
source_dir_qry_res: "/home/dpatel/Desktop/query_output/"
mongodb_parameters:
- { collection: '1.1.1.1-mx', filter: {"config.groups.interfaces.interface.name" : "xyz"} , qry_res_file: 'allconfig' }
In above file, 'filter' is the query run against mongodb collection. I used filter that way by referring "Mongo Lookup inside this Ansible lookup doc http://docs.ansible.com/ansible/playbooks_lookups.html"
#main_run.yaml
- name: query from mongodb collection
connection: local
gather_facts: no
vars_files:
- 'vars/main.yml'
tasks:
- name: "query to db"
query_config:
collection: "{{ item.collection }}"
filter: "{{ item.filter}}"
qry_res_file: "{{ item.qry_res_file}}"
source_dir: "{{ source_dir_qry_res }}"
with_items: "{{ mongodb_parameters }}"
tags: "save-query-result"
query_config (custom ansible module)
def main():
module = AnsibleModule(
argument_spec=dict(
#host=dict(required=True),
collection=dict(required=False),
qry_res_file=dict(required=False),
filter = dict(required=False),
source_dir=dict(required=True),
logfile=dict(required=False, default=None)),
supports_check_mode=True)
m_args = module.params
m_results = dict(changed=False)
try:
conn = pymongo.MongoClient()
#db = conn.m_args['dtbase']
db = conn.mydb
coll_name = m_args['collection']
print "Connected successfully!!!"
except Exception as ex:
module.fail_json(msg='mongodb connection error: %s' % ex.message)
try:
query = db[coll_name].find(m_args['filter'])
if(query):
target_json_file = m_args['source_dir']+m_args['collection'] + m_args['qry_res_file'] + ".json"
for ele in query:
del ele['_id']
with open(target_json_file, 'a') as the_file:
json.dump(ele, the_file)
except Exception as ex:
module.fail_json(msg="failed to get query result: %s" %ex.message)
module.exit_json(**m_results)
from ansible.module_utils.basic import *
if __name__ == '__main__':
main()
mongo collection (mydb[1.1.1.1-mx].find())
{"config": { "groups": {"name": "123", "system": {"host-name": "something"}, "interfaces": {"interface": {"name": "xyz"}}}}}
when I run below query from mongo shell, it's working fine.
mydb[1.1.1.1-mx].find({"config.groups.interfaces.interface.name" : "xyz"})
but when I tried to run same query though the code it gaves me below error
$ ansible-playbook -i hosts main_run.yml
error msg:"failed to get query result: filter must be an instance of dict, bson.son.SON, or other type that inherits from collections.Mapping"
please see these screenshot for detail error message. If anyone have any idea to solve this problem please share your thoughts that would be really helpful.

Answer 1

I would try to set required type in your argument_spec
argument_spec=dict(
collection = dict(required=False),
qry_res_file = dict(required=False),
filter = dict(required=False, type='dict'),
source_dir = dict(required=True),
logfile = dict(required=False, default=None))
because, by default argument type is string, so you end up with your filter object converted to string (see incovation.module_args in your output).