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plugin/view: Advanced routing interface and new 'view' plugin (#5538)

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* 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>
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Chris O'Haver 2022-09-08 14:56:27 -04:00 • committed by GitHub
parent 1f0a41a665
commit b56b080a7c
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36 changed files with 880 additions and 114 deletions
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2
plugin/metrics/handler.go
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@ -34,7 +34,7 @@ func (m *Metrics) ServeDNS(ctx context.Context, w dns.ResponseWriter, r *dns.Msg
rc = status
}
plugin := m.authoritativePlugin(rw.Caller)
vars.Report(WithServer(ctx), state, zone, rcode.ToString(rc), plugin, rw.Len, rw.Start)
vars.Report(WithServer(ctx), state, zone, WithView(ctx), rcode.ToString(rc), plugin, rw.Len, rw.Start)
return status, err
}