How to modify Email template in Alertmanager container?

[alexjuchina]

I use docker container to run alertmanager, I can receive emails normally, everything is fine, but I cannot find where to modify email template. The "View in Alertmanager" button links in email is wrong, I want to change the hostname in it.
So could you tell me what should I do if I want to modify email template ? I can't find the file below:

html: '{{ template "email.default.html" . }}'

[alexjuchina]

I tried to make file 'template/email.default.html' or 'template/email.tmpl', paste official content into them, both failed! Alertmanager container does not use the files.

[hoffie]

The default source file lives here:
https://github.com/prometheus/alertmanager/blob/master/template/default.tmpl
It is built into the binary, so you won't find it in the filesystem.

If you want to provide custom templates, you will have to tell Alertmanager by setting the template config option to a list of files/patterns.

The "View in Alertmanager" URLs should be generated automatically -- you would probably also want to look into adjusting (or adding) your --web.external-url=WEB.EXTERNAL-URL command line option.

If you have further questions, I suggest using the prometheus-users mailing list which is the intended forum for such questions. Github issues are used for bug reports in the Prometheus projects.

[simonpasquier]

@hoffie has provided the perfect answer (thanks!). I'm closing it for now.

[alexjuchina]

The default source file lives here:
https://github.com/prometheus/alertmanager/blob/master/template/default.tmpl
It is built into the binary, so you won't find it in the filesystem.

If you want to provide custom templates, you will have to tell Alertmanager by setting the template config option to a list of files/patterns.

The "View in Alertmanager" URLs should be generated automatically -- you would probably also want to look into adjusting (or adding) your --web.external-url=WEB.EXTERNAL-URL command line option.

If you have further questions, I suggest using the prometheus-users mailing list which is the intended forum for such questions. Github issues are used for bug reports in the Prometheus projects.

thank you very much, I have configured successfully. Really appreciate!

[divyeshme]

Can anyone elaborate in detail to configure the template?

[TN801465]

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