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path: root/roles/monitoring/prometheus/exporter/register/filter_plugins/prometheus.py
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from __future__ import (absolute_import, division, print_function)
__metaclass__ = type

from functools import partial

from ansible import errors


_multitarget_id_map_ = {
    "blackbox/probe": (lambda vars, config: "%s-%s" % (config['svc_kind'], config['svc_instance'])),
    "ssl/probe": (lambda vars, config: "%s-%s-%s" % (config['module'], config['sslcert_instance'], vars['inventory_hostname'])),
    "ipmi/remote": (lambda vars, config: vars['inventory_hostname']),
    "nut/ups": (lambda vars, config: config['ups']),
    "snmp/probe": (lambda vars, config: config['snmp_instance']),
    "modbus/probe": (lambda vars, config: config['modbus_instance']),
    "whawty-nginx-sso": (lambda vars, config: "%s-%s" % (config['app_instance'], vars['inventory_hostname'])),
}


def prometheus_job_targets(jobs, vars):
    try:
        result = []
        for job in jobs:
            multitarget_config_varname = 'prometheus_job_multitarget_' + job.replace('-', '_').replace('/', '__')
            if multitarget_config_varname in vars:
                for exporter_hostname, configs in vars[multitarget_config_varname].items():
                    for config in configs:
                        id = _multitarget_id_map_[job](vars, config)
                        result.append({'_id': id, 'job': job, 'instance': vars['inventory_hostname'], 'enabled': True,
                                       'exporter_hostname': exporter_hostname, 'config': config})

            else:
                enabled = job in vars['prometheus_exporters_default'] or job in vars['prometheus_exporters_extra']
                result.append({'_id': vars['inventory_hostname'], 'job': job, 'instance': vars['inventory_hostname'], 'enabled': enabled})
        return result
    except Exception as e:
        raise errors.AnsibleFilterError("prometheus_job_targets(): %s" % repr(e))


class FilterModule(object):

    ''' prometheus filters '''
    filter_map = {
        'prometheus_job_targets': prometheus_job_targets,
    }

    def filters(self):
        return self.filter_map