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Email Transport: embed graphs by default (#14270)

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* Email embed graphs

* Allow attachment for non-html
Add setting to webui
Correct $auth setting

* Cleanups, throw RrdGraphException instead of returning an error image.
Generate the error image later, giving more control.
Reduce code duplication a little

* Style and lint fixes
Change to flags

* Add baseline for lint errors I don't know how to resolve

* oopsie, changed the code after generating the baseline

* Tiny cleanups.  Make set DeviceCache primary, it is free.

* Docs.

* email_html note

* Allow control of graph embed at the email transport level to override the global config.

* Allow control of graph embed at the email transport level to override the global config.

* Add INLINE_BASE64 to make it easier to create inline image tags
This commit is contained in:
Tony Murray
2022-09-05 20:41:55 -05:00
committed by GitHub
parent ec8629fb63
commit 302a989d4e
15 changed files with 351 additions and 121 deletions
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14
doc/Alerting/Transports.md
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@@ -381,8 +381,18 @@ LibreNMS database.
## Mail
The E-Mail transports uses the same email-configuration like the rest of LibreNMS.
As a small reminder, here is it's configuration directives including defaults:
The E-Mail transports uses the same email-configuration as the rest of LibreNMS.
As a small reminder, here is its configuration directives including defaults:
Emails will attach all graphs included with the @signedGraphTag directive.
If the email format is set to html, they will be embedded.
To disable attaching images, set email_attach_graphs to false.
!!! setting "alerting/email"
```bash
lnms config:set email_html true
lnms config:set email_attach_graphs false
```
**Example:**