b56b080a7c
* introduce new interface "dnsserver.Viewer", that allows a plugin implementing it to decide if a query should be routed into its server block. * add new plugin "view", that uses the new interface to enable a user to define expression based conditions that must be met for a query to be routed to its server block. Signed-off-by: Chris O'Haver <cohaver@infoblox.com>
20 lines
690 B
Go
20 lines
690 B
Go
package dnsserver
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import (
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"context"
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"github.com/coredns/coredns/request"
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)
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// Viewer - If Viewer is implemented by a plugin in a server block, its Filter()
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// is added to the server block's filter functions when starting the server. When a running server
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// serves a DNS request, it will route the request to the first Config (server block) that passes
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// all its filter functions.
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type Viewer interface {
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// Filter returns true if the server should use the server block in which the implementing plugin resides, and the
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// name of the view for metrics logging.
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Filter(ctx context.Context, req *request.Request) bool
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// ViewName returns the name of the view
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ViewName() string
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}
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