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closes #3104 - add support for exposing prometheus metrics

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This commit is contained in:
John Anderson
2019-04-25 01:09:19 -04:00
parent a026ec45b8
commit f057a2c016
12 changed files with 124 additions and 5 deletions
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22
netbox/extras/signals.py Normal file
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from cacheops.signals import cache_invalidated, cache_read
from prometheus_client import Counter
cacheops_cache_hit = Counter('cacheops_cache_hit', 'Number of cache hits')
cacheops_cache_miss = Counter('cacheops_cache_miss', 'Number of cache misses')
cacheops_cache_invalidated = Counter('cacheops_cache_invalidated', 'Number of cache invalidations')
def cache_read_collector(sender, func, hit, **kwargs):
if hit:
cacheops_cache_hit.inc()
else:
cacheops_cache_miss.inc()
def cache_invalidated_collector(sender, obj_dict, **kwargs):
cacheops_cache_invalidated.inc()
cache_read.connect(cache_read_collector)
cache_invalidated.connect(cache_invalidated_collector)