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authorGravatar Miek Gieben <miek@miek.nl> 2018-02-28 18:16:05 -0800
committerGravatar GitHub <noreply@github.com> 2018-02-28 18:16:05 -0800
commitf697b33283afe695554888eb0cf9f5451c481470 (patch)
tree1b46a531ec1e0b623a32a183b56dfdf3ebc8ae1f /plugin/plugin.go
parent5faa9e7bc178775e023f5bff1394e61bddf94eeb (diff)
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return an error for multiple use of some plugins (#1559)
* plugins: Return error for multiple use of some Return plugin.ErrOnce when a plugin that doesn't support it, is called mutliple times. This now adds it for: cache, dnssec, errors, forward, hosts, nsid. And changes it slightly in kubernetes, pprof, reload, root. * more tests
Diffstat (limited to 'plugin/plugin.go')
-rw-r--r--plugin/plugin.go3
1 files changed, 3 insertions, 0 deletions
diff --git a/plugin/plugin.go b/plugin/plugin.go
index a50f10830..2510dbaa6 100644
--- a/plugin/plugin.go
+++ b/plugin/plugin.go
@@ -104,3 +104,6 @@ const Namespace = "coredns"
// TimeBuckets is based on Prometheus client_golang prometheus.DefBuckets
var TimeBuckets = prometheus.ExponentialBuckets(0.00025, 2, 16) // from 0.25ms to 8 seconds
+
+// ErrOnce is returned when a plugin doesn't support multiple setups per server.
+var ErrOnce = errors.New("this plugin can only be used once per Server Block")