Alertmanager: Add if statement to alertmanager.yml

[mateeyow]

Hi, I was wondering if it's possible to add an if statement to an alertmanager.yml. I'm thinking of something like this:

receivers:
- name: blackbox
  slack_configs:
  - send_resolved: true
    channel: prometheus
    text: "{{if .Status eq 'firing'}} {{ .CommonLabels.instance }} is down! \nPlease contact the team right away! {{else}} {{ .CommonLabels.instance }} is back up again! You can now relax! {{end}}"

But it seems that alertmanager does not recognize 'firing' word.

[fabxc]

Have you tried turning your single quotes into regular quotes (")?

[mateeyow]

Tried changing the text to:

text: '{{if .Status eq "firing"}} {{ .CommonLabels.instance }} is down! \nPlease contact the team right away! {{else}} {{ .CommonLabels.instance }} is back up again! You can now relax! {{end}}'

But I ended up getting this error:

33mWARN[0200] Notify attempt 9 failed: template: :1:5: executing "" at <.Status>: Status has arguments but cannot be invoked as function  source=notify.go:193

[brian-brazil]

Go templates are a prefix language. Try eq .Status "firing"

[mateeyow]

Pardon my ignorance but I just started learning go templates. Much more haven't learned go language yet. Anyhow, should I replace the if statement with the one you are giving? What will happened to the else statement?

text: '{{eq .Status "firing"}} {{ .CommonLabels.instance }} is down! \nPlease contact the team right away! {{else}} {{ .CommonLabels.instance }} is back up again! You can now relax! {{end}}'

Is that the correct format?

[fabxc]

Brian just meant that you should swap eq and .Status – not to drop the if.
So {{ if eq .Status "firing" }}.

[fabxc]

Assuming this is resolved.