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Client-side of gRPC proxy (#511)

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* WIP: Client-side of gRPC proxy

* Add tests

* gofmt

* Implement OnShutdown; add a little logging

* Update for context in Exchange change

* go fmt

* Update README

* Review comments

* Compiling is good

* More README improvements
This commit is contained in:
John Belamaric
2017-02-14 22:20:20 -05:00
committed by GitHub
parent 98c86f3f9f
commit 061b3fc1bd
6 changed files with 353 additions and 3 deletions
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101
middleware/proxy/upstream_test.go
View File

@@ -8,6 +8,8 @@ import (
"testing"
"time"
"github.com/miekg/coredns/middleware/test"
"github.com/mholt/caddy"
)
@@ -96,6 +98,14 @@ func writeTmpFile(t *testing.T, data string) (string, string) {
}
func TestProxyParse(t *testing.T) {
rmFunc, cert, key, ca := getPEMFiles(t)
defer rmFunc()
grpc1 := "proxy . 8.8.8.8:53 {\n protocol grpc " + ca + "\n}"
grpc2 := "proxy . 8.8.8.8:53 {\n protocol grpc " + cert + " " + key + "\n}"
grpc3 := "proxy . 8.8.8.8:53 {\n protocol grpc " + cert + " " + key + " " + ca + "\n}"
grpc4 := "proxy . 8.8.8.8:53 {\n protocol grpc " + key + "\n}"
tests := []struct {
inputUpstreams string
shouldErr bool
@@ -174,8 +184,84 @@ proxy . 8.8.8.8:53 {
},
{
`
proxy . 8.8.8.8:53 {
protocol grpc
}`,
false,
},
{
`
proxy . 8.8.8.8:53 {
protocol grpc insecure
}`,
false,
},
{
`
proxy . 8.8.8.8:53 {
protocol grpc a b c d
}`,
true,
},
{
grpc1,
false,
},
{
grpc2,
false,
},
{
grpc3,
false,
},
{
grpc4,
true,
},
{
`
proxy . 8.8.8.8:53 {
protocol foobar
}`,
true,
},
{
`proxy`,
true,
},
{
`
proxy . 8.8.8.8:53 {
protocol foobar
}`,
true,
},
{
`
proxy . 8.8.8.8:53 {
policy
}`,
true,
},
{
`
proxy . 8.8.8.8:53 {
fail_timeout
}`,
true,
},
{
`
proxy . 8.8.8.8:53 {
fail_timeout junky
}`,
true,
},
{
`
proxy . 8.8.8.8:53 {
health_check
}`,
true,
},
@@ -184,7 +270,7 @@ proxy . 8.8.8.8:53 {
c := caddy.NewTestController("dns", test.inputUpstreams)
_, err := NewStaticUpstreams(&c.Dispenser)
if (err != nil) != test.shouldErr {
t.Errorf("Test %d expected no error, got %v", i+1, err)
t.Errorf("Test %d expected no error, got %v for %s", i+1, err, test.inputUpstreams)
}
}
}
@@ -264,3 +350,16 @@ junky resolve.conf
}
}
}
func getPEMFiles(t *testing.T) (rmFunc func(), cert, key, ca string) {
tempDir, rmFunc, err := test.WritePEMFiles("")
if err != nil {
t.Fatalf("Could not write PEM files: %s", err)
}
cert = filepath.Join(tempDir, "cert.pem")
key = filepath.Join(tempDir, "key.pem")
ca = filepath.Join(tempDir, "ca.pem")
return
}