Move *proxy* to external (#2651)

* Move *proxy* to external

move the proxy plugin into coredns/proxy and remove it as a default
plugin. Link the proxy to deprecated in plugin.cfg

coredns/proxy doesn't compile because of the vendoring :(

Signed-off-by: Miek Gieben <miek@miek.nl>

* Add github.com/coredns/proxy

Signed-off-by: Yong Tang <yong.tang.github@outlook.com>

1 files changed, 0 insertions, 72 deletions

diff --git a/plugin/proxy/proxy_test.go b/plugin/proxy/proxy_test.go
deleted file mode 100644
index 0d29c2329..000000000
--- a/plugin/proxy/proxy_test.go
+++ /dev/null
@@ -1,72 +0,0 @@
-package proxy
-
-import (
-	"fmt"
-	"net/http"
-	"net/http/httptest"
-	"strings"
-	"sync/atomic"
-	"testing"
-	"time"
-
-	"github.com/mholt/caddy/caddyfile"
-)
-
-func TestStop(t *testing.T) {
-	config := "proxy . %s {\n health_check /healthcheck:%s %dms \n}"
-	tests := []struct {
-		intervalInMilliseconds  int
-		numHealthcheckIntervals int
-	}{
-		{5, 1},
-		{5, 2},
-		{5, 3},
-	}
-
-	for i, test := range tests {
-		t.Run(fmt.Sprintf("Test %d", i), func(t *testing.T) {
-
-			// Set up proxy.
-			var counter int64
-			backend := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-				r.Body.Close()
-				atomic.AddInt64(&counter, 1)
-			}))
-
-			defer backend.Close()
-
-			port := backend.URL[17:] // Remove all crap up to the port
-			back := backend.URL[7:]  // Remove http://
-			c := caddyfile.NewDispenser("Testfile", strings.NewReader(fmt.Sprintf(config, back, port, test.intervalInMilliseconds)))
-			upstreams, err := NewStaticUpstreams(&c)
-			if err != nil {
-				t.Errorf("Test %d, expected no error. Got: %s", i, err)
-			}
-
-			// Give some time for healthchecks to hit the server.
-			time.Sleep(time.Duration(test.intervalInMilliseconds*test.numHealthcheckIntervals) * time.Millisecond)
-
-			for _, upstream := range upstreams {
-				if err := upstream.Stop(); err != nil {
-					t.Errorf("Test %d, expected no error stopping upstream, got: %s", i, err)
-				}
-			}
-
-			counterAfterShutdown := atomic.LoadInt64(&counter)
-
-			// Give some time to see if healthchecks are still hitting the server.
-			time.Sleep(time.Duration(test.intervalInMilliseconds*test.numHealthcheckIntervals) * time.Millisecond)
-
-			if counterAfterShutdown == 0 {
-				t.Errorf("Test %d, Expected healthchecks to hit test server, got none", i)
-			}
-
-			// health checks are in a go routine now, so one may well occur after we shutdown,
-			// but we only ever expect one more
-			counterAfterWaiting := atomic.LoadInt64(&counter)
-			if counterAfterWaiting > (counterAfterShutdown + 1) {
-				t.Errorf("Test %d, expected no more healthchecks after shutdown. got: %d healthchecks after shutdown", i, counterAfterWaiting-counterAfterShutdown)
-			}
-		})
-	}
-}