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Full Example

title=examples/raw_sql_query_datetime.yml
# Notify if a result queried from the DB is above a certain thershold.
workflow:
  id: raw-sql-query
  description: Monitor that time difference is no more than 1 hour
  steps:
    - name: get-max-datetime
      provider:
        type: mysql
        config: "{{ providers.mysql-prod }}"
        with:
          # Get max(datetime) from the random table
          query: "SELECT MAX(datetime) FROM demo_table LIMIT 1"
  actions:
    - name: trigger-slack
      condition:
      - name: threshold-condition
        type: threshold
        # datetime_compare(t1, t2) compares t1-t2 and returns the diff in hours
        #   utcnow() returns the local machine datetime in UTC
        #   to_utc() converts a datetime to UTC
        value: keep.datetime_compare(keep.utcnow(), keep.to_utc("{{ steps.this.results[0][0] }}"))
        compare_to: 1 # hours
        compare_type: gt # greater than
      provider:
        type: slack
        config: " {{ providers.slack-demo }} "
        with:
          message: "DB datetime value ({{ actions.trigger-slack.conditions.threshold.0.compare_value }}) is greater than 1! 🚨"

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Breakdown 🔨

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Workflow

workflow:
  id: raw-sql-query
  description: Monitor that time difference is no more than 1 hour
  steps:
    -
  actions:
    -

Workflow is built of:

  • Metadata (id, description. owners and tags will be added soon)
  • steps - list of steps
  • actions - list of actions
  • on-failure - a conditionless action used in case of an alert failure

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Provider

provider:
    type: mysql
    config: "{{ providers.mysql-prod }}"
    with:
        query: "SELECT MAX(datetime) FROM demo_table LIMIT 1"
    on-failure:
        retry:
            count: 4
            interval: 10

Provider is built of:

  • type - the type of the provider (see supported providers)
  • config - the provider configuration. you can either supply it explicitly or using "{{ providers.mysql-prod }}"
  • with - all type-specific provider configuration. for example, for mysql we will provide the SQL query.
  • on-failure - handling the error when provider execution fails, it is built of:
    • retry - specifies the retry parameters which include:
      • count: maximum number of retries.
      • interval: duration in seconds between each retry.

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Condition

- name: threshold-condition
  type: threshold
  value: keep.datetime_compare(keep.utcnow(), keep.to_utc("{{ steps.this.results[0][0] }}"))
  compare_to: 1
  compare_type: gt

Condition is built of:

  • name - a unique identifier to the condition
  • type - the type of the condition
  • value - the value that will be supplied to the condition during the alert execution
  • compare_to - whats value will be compared against
  • compare_type - all type-specific condition configuration

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Steps/Actions

steps/actions:
  - name: trigger-slack
    condition:
    - name: threshold-condition
      type: threshold
      value: keep.datetime_compare(keep.utcnow(), keep.to_utc("{{ steps.this.results[0][0] }}"))
      compare_to: 1
      compare_type: gt
    provider:
      type: slack
      config: " {{ providers.slack-demo }} "
      with:
        message: "DB datetime value ({{ actions.trigger-slack.conditions.threshold.0.compare_value }}) is greater than 1! 🚨"

Step/Action is built of:

  • name - the name of the action.
  • condition - a list of conditions that
  • provider - the provider that will trigger the action.
  • throttle - you can throttle the action.
  • if - action can be limited to when certain conditions are met.
  • foreach - when foreach block supplied, Keep will evaluate it as a list, and evaluates the action for every item in the list.

The provider configuration is already covered in Providers

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On-failure

on-failure:
    # Just need a provider we can use to send the failure reason
    provider:
      type: slack
      config: " {{ providers.slack-demo }} "

On-failure is actually a condtionless Action used to notify in case the alert failed with an exception. The provider is passed a message (string) to it’s notify function.

OverviewForeach Syntax