An example elastalert config

example-alert.yml

# Alert when the rate of events exceeds a threshold

# (Required)
# Rule name, must be unique
name: jenkins-severe-exceptions

# (Required)
# Type of alert.
# the frequency rule type alerts when num_events events occur with timeframe time
type: frequency

# (Required)
# Index to search, wildcard supported
index: logstash-*

# (Required, frequency specific)
# Alert when this many documents matching the query occur within a timeframe
num_events: 2

# (Required, frequency specific)
# num_events must occur within this amount of time to trigger an alert
timeframe:
    hours: 1

# (Required)
# A list of elasticsearch filters used for find events
# These filters are joined with AND and nested in a filtered query
# For more info: http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/query-dsl.html
filter:
- query:
    query_string:
      query: "log: SEVERE AND kubernetes.namespace_name: jenkins"

# (Required)
# The alert is use when a match is found
alert:
- "slack"

slack_username_override: "k8s-bot"
slack_webhook_url: my.slack.webhook/XXXXX/XXXXX