mute_time_interval examples (for maintenance window)

[Evelyn Pereira Souza]

Hi

I need some mute_time_interval examples.

Beginning of the year we define every month 3x maintenance window. The
dates different for every month. The time the same.

I wish that in those 3x maintenance window every month no alerts going out.

Can you provide me examples how-to implement that?

This docs not enough help for me
https://prometheus.io/docs/alerting/latest/configuration/#mute_time_interval

kind regards
Evelyn

[Benjamin Ridley]

Hi Evelyn,

I hope I'm understanding correctly, you could do something like this for defining the intervals for the year:

mute_time_intervals:
  - name: maintenance_windows
    time_intervals:
      - months: ['january']
        days_of_month: ['7', '18', '28']
        times:
          - start_time: '18:00'
            end_time: '24:00'
      - months: ['february']
        days_of_month: ['5', '14', '26']
        times:
          - start_time: '18:00'
            end_time: '24:00'
      - months: ['march']
        days_of_month: ['8', '19', '30']
        times:
          - start_time: '18:00'
            end_time: '24:00'
      ... etc

​

Then inside whatever routes you are using, you just need to reference the interval:

route:
  group_by: ['...']
  group_wait: 1s
  group_interval: 1m
  repeat_interval: 3h
  routes:
    - matchers:
         - severity = critical
      mute_time_intervals:
        - maintenance_windows

​

I hope that helps!

Cheers,
Ben

[Evelyn Pereira Souza]

On 20.08.21 01:29, Benjamin Ridley wrote:
> I hope that helps!

Thank you very much. Exactly what I am looking for. Only 1 small problem
I not know how-to solve:

start_time: '22:00'
end_time: '02:00' (next day)

have a great day

kind regards
Evelyn

[Benjamin Ridley]

No worries Evelyn!

In that case, you can split the time interval into the days you want muted late at night, and then the days you want muted early in the morning. Like so:

mute_time_intervals:  
- name: maintenance_windows     
  time_intervals:  

  - months: ['january']
    days_of_month: ['7', '18', '28']
    times:
      - start_time: '22:00'
        end_time: '24:00'
  - months: ['january']
    days_of_month: ['8', '19', '29']
    times:
      - start_time: 00:00,
        end_time: '02:00'

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