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plugin/forward: added option failfast_all_unhealthy_upstreams to return servfail if all upstreams are down (#6999)

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* feat: option to return servfail if upstreams are down

Signed-off-by: Puneet Loya <puneetloya@Puneets-MBP.attlocal.net>

* fix based on review comments and added to Readme

Signed-off-by: Puneet Loya <puneetloya@Puneets-MBP.attlocal.net>

* add tests to improve code coverage

Signed-off-by: Puneet Loya <puneetloya@Puneets-MBP.attlocal.net>

* added failfast_all_unhealthy_upstreams option to forward plugin

Signed-off-by: Puneet Loya <puneetloya@Puneets-MBP.attlocal.net>

---------

Signed-off-by: Puneet Loya <puneetloya@Puneets-MBP.attlocal.net>
Co-authored-by: Puneet Loya <puneetloya@Puneets-MBP.attlocal.net>
This commit is contained in:
Puneet Loya
2025-03-07 08:37:25 -08:00
committed by GitHub
parent 669ff527bf
commit 4de8fb57b2
5 changed files with 138 additions and 8 deletions
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6
plugin/forward/setup.go
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@@ -306,6 +306,12 @@ func parseBlock(c *caddy.Controller, f *Forward) error {
f.nextAlternateRcodes = append(f.nextAlternateRcodes, rc)
}
case "failfast_all_unhealthy_upstreams":
args := c.RemainingArgs()
if len(args) != 0 {
return c.ArgErr()
}
f.failfastUnhealthyUpstreams = true
default:
return c.Errf("unknown property '%s'", c.Val())
}