Basic presubmit (#88)

cloudbuild/README.md

@@ -0,0 +1,7 @@
+# Lemming CI
+
+## Presubmit
+
+Any PR triggers the presubmit job. The presubmit creates GCE VM, sets up KNE instance, and runs tests in integration_tests folder.
+
+See [remote-builder](https://github.com/GoogleCloudPlatform/cloud-builders-community/tree/master/remote-builder) for details on the remote builder.

cloudbuild/presubmit.sh

@@ -0,0 +1,13 @@
+#!/bin/bash
+
+set -xe
+
+export PATH=${PATH}:/usr/local/go/bin
+gopath=$(go env GOPATH)
+export PATH=${PATH}:$gopath/bin
+
+cd /tmp/workspace
+kne deploy ~/kne-internal/deploy/kne/kind-bridge.yaml
+make deploy itest
+make clean
+make deploy2 itest2

cloudbuild/presubmit.yaml

@@ -0,0 +1,17 @@
+steps:
+  - id: remote_builder_test
+    name: gcr.io/$PROJECT_ID/remote-builder
+    env:
+      - USERNAME=user
+      - SSH_ARGS=--internal-ip --ssh-key-expire-after=1d
+      - INSTANCE_NAME=kne-presubmit-$BUILD_ID
+      - INSTANCE_ARGS=--network cloudbuild-workers --image-project gep-kne --image-family kne --machine-type n2-standard-16 --preemptible
+      - ZONE=us-central1-a
+      - REMOTE_WORKSPACE=/tmp/workspace
+      - COMMAND=source /tmp/workspace/cloudbuild/presubmit.sh 2>&1
+
+timeout: 1800s
+
+options:
+  pool:
+    name: 'projects/openconfig-lemming/locations/us-central1/workerPools/lemming-workerpool'

integration_tests/traffic_test.go

@@ -179,7 +179,7 @@ func waitOTGARPEntry(t *testing.T) {
 // testTraffic generates traffic flow from source network to
 // destination network via srcEndPoint to dstEndPoint and checks for
 // packet loss and returns loss percentage as float.
-func testTraffic(t *testing.T, ate *ondatra.ATEDevice, top gosnappi.Config, srcEndPoint, dstEndPoint Attributes) float32 {
+func testTraffic(t *testing.T, ate *ondatra.ATEDevice, top gosnappi.Config, srcEndPoint, dstEndPoint Attributes, dur time.Duration) float32 {
 	otg := ate.OTG()
 	gwIP := gatewayMap[srcEndPoint].IPv4
 	waitOTGARPEntry(t)
@@ -201,7 +201,7 @@ func testTraffic(t *testing.T, ate *ondatra.ATEDevice, top gosnappi.Config, srcE
 	otg.PushConfig(t, top)
 
 	otg.StartTraffic(t)
-	time.Sleep(15 * time.Second)
+	time.Sleep(dur)
 	t.Logf("Stop traffic")
 	otg.StopTraffic(t)
 
@@ -360,7 +360,10 @@ func TestIPv4Entry(t *testing.T) {
 				chk.HasResult(t, c.Results(t), wantResult, chk.IgnoreOperationID())
 			}
 
-			loss := testTraffic(t, ate, ateTop, atePort1, atePort2)
+			// Send some traffic to make sure neighbor cache is warmed up on the dut.
+			testTraffic(t, ate, ateTop, atePort1, atePort2, 1*time.Second)
+
+			loss := testTraffic(t, ate, ateTop, atePort1, atePort2, 15*time.Second)
 			if loss > 1 {
 				t.Errorf("Loss: got %g, want <= 1", loss)
 			}

kne/topo.pb.txt

@@ -2,6 +2,7 @@ name: "ixia-c"
 nodes: {
     name: "otg"
     type: IXIA_TG
+    vendor: KEYSIGHT
     version: "0.0.1-9999"
     services: {
         key: 40051
@@ -21,6 +22,7 @@ nodes: {
 nodes: {
     name: "lemming"
     type: LEMMING
+    vendor: OPENCONFIG
     config: {
         args: "--target=lemming"
         args: "--enable_dataplane"

kne/twodut_topo.pb.txt

@@ -2,6 +2,7 @@ name: "twodut"
 nodes: {
     name: "lemming"
     type: LEMMING
+    vendor: OPENCONFIG
     config: {
         args: "--target=lemming"
         args: "--enable_dataplane"
@@ -13,6 +14,7 @@ nodes: {
 nodes: {
     name: "lemming2"
     type: LEMMING
+    vendor: OPENCONFIG
     config: {
         args: "--target=lemming2"
         args: "--enable_dataplane"