Vmalert
- vmalert executes a list of given alerting or recording rules against configured address
- some command line interface tool
configure vmalert
./bin/vmalert -rule=alter.rules \
// PromSQL compatible datasource
-datasource.url=http://localhost:8428
// Alert manager url
-notifier.url=http://localhost:9093
// Alert manager replica rul
-notifier.url=http://127.0.0.1:9093
// remote write compatible storage to persist rules
-remoteRead.url=http://localhost:8428
// PromSQL compatible datasource to restore alerts state from
-remoteWrite.url=http://localhost:8428
// External label to be applied for each rule
-external.label=cluster=east-1 \
// Multiple external labels may be set
-external.label=replica=a \
// Default evaluation interval if not specified in rules group
-evaluationInterval=3s
if you run multiple
vmalert
services for the same datastore or Alert manager - do not forget to specify different external.label flags in order to define which vmalert generated rules or alerts.
groups
groups: [- <rule_group>]
each group has following attributes:
# the name of the group. Must be unique within a file
name: <string>
# How often rules in group are evaluated
[interval: <duration> | default = global.evaluation_interval ]
# How many rules execute at once.
# Increasing concurrency may speed
# up round execution speed
[ concurrency: <integer> | default = 1]
# rules
rules :
[ - <rule> ...]
rules
there are two types of rules : recording and alerting
alerting rules
# the name of the alert,Must be a valid metric name
alert: <string>
# the metricQL expression to evaluate
expr: <string>
# Alerts are considered firing once they have been returned for this long
# Alerts witch have not ye fired for long enough are considered pending
[ for:<duration> | default = 0s ]
# Labels to add or overwrite for each alert
labels:
[<labelname>:<tmpl_string>]
# Annotations to add to each alert
annotations:
[<labelname>:<tmpl_string]
recording rules
# The name of the time series to output to. Must be a valid metric name.
record: <string>
# The MetricsQL expression to evaluate.
expr: <string>
# Labels to add or overwrite before storing the result.
labels:
[ <labelname>: <labelvalue> ]
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