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Add configuration flag to set if RecursionDesired should be set on health checkers in Forward-plugin (#3679)

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* Make the RD-flag in health-checks in the Forward-plugin configurable

Introduces a new configuration flag; `health_check_non_recursive`. This
flag makes the health-checker do non-recursive requests when checking
the health of upstream servers.

Signed-off-by: Geir Haugom <ghagit@haugom.org>
Signed-off-by: Christian Tryti <ctryti@gmail.com>

* Changes after feedback from reviewer

* Better tests of health-checks with and without recursion
* Removed the health_check_non_recursive configuration in favor of
extending the existing health_check configuration. Now supports an
optional `no_rec` argument.

Signed-off-by: Christian Tryti <ctryti@gmail.com>

* Add new test that checks setup of health_check.

Signed-off-by: Christian Tryti <ctryti@gmail.com>
This commit is contained in:
Christian Tryti
2020-03-06 11:52:43 +01:00
committed by GitHub
parent a74a209129
commit 116bda4d27
7 changed files with 135 additions and 26 deletions
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2
plugin/forward/proxy.go
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@@ -29,7 +29,7 @@ func NewProxy(addr, trans string) *Proxy {
probe: up.New(),
transport: newTransport(addr),
}
p.health = NewHealthChecker(trans)
p.health = NewHealthChecker(trans, true)
runtime.SetFinalizer(p, (*Proxy).finalizer)
return p
}