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# -------------------------------------------------------------
# Salt — Prometheus execution module
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
# Project: Nasqueron
# Description: Functions related to Prometheus configuration
# License: BSD-2-Clause
# -------------------------------------------------------------
SCRAPE_CONFIG_OPTIONS_RENAME = {
"name": "job_name",
}
SCRAPE_CONFIG_OPTIONS_PASSTHROUGH = [
"scheme",
"metrics_path",
]
def get_scrape_configs():
configs = __pillar__.get("prometheus_scrape_jobs", {}).values()
return [_build_scrape_config(config) for config in configs]
def _build_scrape_config(config):
scrape_config = {}
for key in SCRAPE_CONFIG_OPTIONS_PASSTHROUGH:
if key in config:
scrape_config[key] = config[key]
for pillar_key, scrape_config_key in SCRAPE_CONFIG_OPTIONS_RENAME.items():
if pillar_key in config:
scrape_config[scrape_config_key] = config[pillar_key]
scrape_targets = []
for target in config.get("services_targets", []):
address = _resolve_service(target)
scrape_targets.append(address)
for targets in config.get("services_targets_list", []):
addresses = _resolve_service_list(targets)
scrape_targets.extend(addresses)
scrape_config["static_configs"] = [{"targets": scrape_targets}]
return scrape_config
def _resolve_service(config):
if "service" not in config or "port" not in config:
raise ValueError("service and port keys are both required to define a service")
key = "nasqueron_services:" + config["service"]
address = __salt__["pillar.get"](key)
return address + ":" + str(config["port"])
def _resolve_service_list(config):
if "service" not in config or "port" not in config:
raise ValueError("service and port keys are both required to define a service")
key = "nasqueron_services:" + config["service"]
addresses = __salt__["pillar.get"](key)
return [address + ":" + str(config["port"]) for address in addresses]

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