def _addAutostackMetric(self, conn, autostackObj, name=None, **kwargs):
name = name or "AWS/EC2/CPUUtilization"
modelSpec = {"modelParams": {},
"datasource": "autostack",
"metricSpec": {"slaveDatasource": "cloudwatch" if name.startswith("AWS/EC2") else "autostack",
"slaveMetric": {"metric": name,
"namespace": "AWS/EC2"},
"autostackId": autostackObj.uid}}
metricDict = repository.addMetric(
conn,
datasource="autostack",
name=name,
description=("{0} on HTM-IT Autostack {1} in {2} "
"region").format(name, autostackObj.name, autostackObj.region),
server="Autostacks/{0}".format(autostackObj.uid),
location=autostackObj.region,
tag_name=name,
parameters=htmengine.utils.jsonEncode(modelSpec),
poll_interval=300,
status=MetricStatus.UNMONITORED)
metricObj = repository.getMetric(conn, metricDict["uid"])
repository.addMetricToAutostack(conn, autostackObj.uid, metricObj.uid)
metricObj = type("MutableMetric", (object,), dict(metricObj.items()))()
return metricObj
def startMonitoringWithRetries():
"""
:returns: metricId
"""
with self.connectionFactory() as conn:
with conn.begin():
repository.lockOperationExclusive(conn,
repository.OperationLock.METRICS)
# Check if the metric is already monitored
matchingMetrics = repository.getAutostackMetricsWithMetricName(
conn,
autostackId,
nameColumnValue,
fields=[schema.metric.c.uid])
matchingMetric = next(iter(matchingMetrics), None)
if matchingMetric:
msg = ("monitorMetric: Autostack modelId=%s is already "
"monitoring metric=%s on resource=%s; model=%r"
% (matchingMetric.uid, nameColumnValue,
canonicalResourceName, matchingMetric))
self._log.warning(msg)
raise htm-it.app.exceptions.MetricAlreadyMonitored(
msg,
uid=matchingMetric.uid)
# Add a metric row for the requested metric
metricDict = repository.addMetric(
conn,
datasource=self._DATASOURCE,
name=nameColumnValue,
description=metricDescription,
server=canonicalResourceName,
location=autostack.region,
tag_name=autostack.name,
parameters=htmengine.utils.jsonEncode(modelSpec),
poll_interval=period,
status=MetricStatus.UNMONITORED)
metricId = metricDict["uid"]
repository.addMetricToAutostack(conn, autostackId, metricId)
# Start monitoring
scalar_metric_utils.startMonitoring(
conn=conn,
metricId=metricId,
swarmParams=swarmParams,
logger=self._log)
self._log.info("monitorMetric: monitoring metric=%s, stats=%r",
metricId, stats)
return metricId
def _createAutostackMetric(conn, name, region, filters):
autostackDict = repository.addAutostack(conn,
name=name,
region=region,
filters=json.dumps(filters))
modelSpec = {"modelParams": {},
"datasource": "autostack",
"metricSpec": {"slaveDatasource": "cloudwatch",
"slaveMetric": {"metric": "CPUUtilization",
"namespace": "AWS/EC2"},
"autostackId": autostackDict["uid"]}}
metricDict = repository.addMetric(
conn,
datasource="autostack",
name="CPUUtilization",
description=("CPUUtilization on HTM-IT Autostack {0} in us-west-2 "
"region").format(name),
server="Autostacks/{0}".format(autostackDict["uid"]),
location=region,
tag_name=name,
parameters=htmengine.utils.jsonEncode(modelSpec),
poll_interval=300,
status=MetricStatus.UNMONITORED)
repository.addMetricToAutostack(conn,
autostackDict["uid"],
metricDict["uid"])
autostackObj = type("MutableAutostack", (object,), autostackDict)()
autostackObj.filters = json.loads(autostackObj.filters)
metricObj = type("MutableMetric", (object,), metricDict)()
return autostackObj, metricObj