Prometheus alert on business days

README.md

1. Implement the defined alerting conditions
2. Set the following rule in the alerts: vector(1) and on() business_hour

gistfile1.txt

groups:
- name: datetime
  rules:
  - record: daily_saving_time_belgium
    expr: |
      (vector(0) and (month() < 3 or month() > 10))
      or
      (vector(1) and (month() > 3 and month() < 10))
      or
      (
       (
        (month() %2 and (day_of_month() - day_of_week() > (30 + +month() % 2 - 7)) and day_of_week() > 0)
       or
        -1*month()%2+1 and (day_of_month() - day_of_week() <= (30 + month() % 2 - 7))
       )
      )
      or
      (vector(1) and ((month()==10 and hour() < 1) or (month()==3 and hour() > 0)))
      or
      vector(0)
  - record: belgium_localtime
    expr: |
       time() + 3600 + 3600 * daily_saving_time_belgium
  - record: business_day
    expr: |
       vector(1) and day_of_week(belgium_localtime) > 0 and day_of_week(belgium_localtime) < 6 unless count(public_holiday)
  - record: belgium_hour
    expr: |
       hour(belgium_localtime)
  - record: business_hour
    expr: |
       vector(1) and belgium_hour >= 8 < 18 and business_day
  - record: public_holiday
    expr: |
       vector(1) and day_of_month(belgium_localtime) == 1 and month(belgium_localtime) == 1
    labels:
       name: jour de lan
  - record: public_holiday
    expr: |
       vector(1) and day_of_month(belgium_localtime) == 1 and month(belgium_localtime) == 5
    labels:
       name: fete du travail
  - record: public_holiday
    expr: |
       vector(1) and day_of_month(belgium_localtime) == 21 and month(belgium_localtime) == 7
    labels:
       name: fete nationale
  - record: public_holiday
    expr: |
       vector(1) and day_of_month(belgium_localtime) == 15 and month(belgium_localtime) == 8
    labels:
       name: assomption
  - record: public_holiday
    expr: |
       vector(1) and day_of_month(belgium_localtime) == 1 and month(belgium_localtime) == 11
    labels:
       name: toussaint
  - record: public_holiday
    expr: |
       vector(1) and day_of_month(belgium_localtime) == 11 and month(belgium_localtime) == 11
    labels:
       name: armistice de 1918
  - record: public_holiday
    expr: |
       vector(1) and day_of_month(belgium_localtime) == 25 and month(belgium_localtime) == 12
    labels:
       name: noel
  - record: public_holiday
    expr: |
       vector(1) and day_of_month(belgium_localtime) == 22 and month(belgium_localtime) == 4 and year(belgium_localtime) == 2019
    labels:
       name: lundi de paques
  - record: public_holiday
    expr: |
       vector(1) and day_of_month(belgium_localtime) == 30 and month(belgium_localtime) == 5 and year(belgium_localtime) == 2019
    labels:
       name: ascension
  - record: public_holiday
    expr: |
       vector(1) and day_of_month(belgium_localtime) == 10 and month(belgium_localtime) == 6 and year(belgium_localtime) == 2019
    labels:
       name: pentecote
  - alert: It is time to put 2020 legal holidays in prometheus
    for: 7d
    labels:
      alertid: MON-0000
      priority: P5
      repeat_interval: 24h
      recipient: monitoring/circuit
      send_resolved: no
      env: prod
      title: Business Days
    annotations:
      description: It is time to put 2020 legal holidays in prometheus
      action: Update templates/rules/businesshours.yml.j2 in the prometheus rules (Easter Monday, Ascension Day, Whit Monday).
    expr: |
        month() > 6 and year() == 2019