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	* core: allow all CIDR ranges in zone specifications Allow (e.g.) a v4 reverse on a /17. If a zone is specified in such a way a FilterFunc is set in the config. This filter is checked against incoming queries. For all other queries this adds a 'x != nil' check which will not impact performace too much. Benchmark function is added as well to check for this as wel. Add multiple tests in tests/server_reverse_test.go. Benchmark shows in the non-reverse case this hardly impact the speed: ~~~ classless: pkg: github.com/coredns/coredns/core/dnsserver BenchmarkCoreServeDNS-4 1000000 1431 ns/op 16 B/op 1 allocs/op pkg: github.com/coredns/coredns/core/dnsserver BenchmarkCoreServeDNS-4 1000000 1429 ns/op 16 B/op 1 allocs/op master: pkg: github.com/coredns/coredns/core/dnsserver BenchmarkCoreServeDNS-4 1000000 1412 ns/op 16 B/op 1 allocs/op pkg: github.com/coredns/coredns/core/dnsserver BenchmarkCoreServeDNS-4 1000000 1429 ns/op 16 B/op 1 allocs/op ~~~ * README.md updates
		
			
				
	
	
		
			36 lines
		
	
	
		
			977 B
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			36 lines
		
	
	
		
			977 B
		
	
	
	
		
			Go
		
	
	
	
	
	
package kubernetes
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import (
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	"testing"
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	"github.com/mholt/caddy"
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)
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func TestKubernetesParseReverseZone(t *testing.T) {
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	tests := []struct {
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		input         string   // Corefile data as string
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		expectedZones []string // expected count of defined zones.
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	}{
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		{`kubernetes coredns.local 10.0.0.0/16`, []string{"coredns.local.", "0.10.in-addr.arpa."}},
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		{`kubernetes coredns.local 10.0.0.0/17`, []string{"coredns.local.", "0.10.in-addr.arpa."}},
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	}
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	for i, tc := range tests {
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		c := caddy.NewTestController("dns", tc.input)
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		k, _, err := kubernetesParse(c)
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		if err != nil {
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			t.Fatalf("Test %d: Expected no error, got %q", i, err)
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		}
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		zl := len(k.Zones)
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		if zl != len(tc.expectedZones) {
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			t.Errorf("Test %d: Expected kubernetes to be initialized with %d zones, found %d zones", i, len(tc.expectedZones), zl)
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		}
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		for i, z := range tc.expectedZones {
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			if k.Zones[i] != z {
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				t.Errorf("Test %d: Expected zones to be %q, got %q", i, z, k.Zones[i])
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			}
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		}
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	}
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}
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