dump events in sandbox namespace after each test run

pkg/e2e/framework.go

@@ -207,6 +207,8 @@ func (f *Framework) RunWithSandbox(name string, t *testing.T, testFunc func(*tes
 		}
 
 		testFunc(t, sandbox)
+
+		sandbox.DumpSandboxInfo(t)
 	})
 }
 

pkg/e2e/sandbox.go

@@ -24,6 +24,8 @@ import (
 	"k8s.io/api/core/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/ingress-gce/pkg/fuzz"
+	"sort"
+	"testing"
 )
 
 // Sandbox represents a sandbox for running tests in a Kubernetes cluster.
@@ -93,3 +95,40 @@ func (s *Sandbox) MasterUpgraded() bool {
 func (s *Sandbox) MasterUpgrading() bool {
 	return s.f.statusManager.masterUpgrading()
 }
+
+// DumpSandboxInfo dumps information about the sandbox into logs
+func (s *Sandbox) DumpSandboxInfo(t *testing.T) {
+	s.dumpSandboxEvents(t)
+}
+
+// dumpSandboxEvents dumps the events happened in the sandbox namespace into logs
+func (s *Sandbox) dumpSandboxEvents(t *testing.T) {
+	t.Logf("Collecting events from namespace %q.", s.Namespace)
+	events, err := s.f.Clientset.CoreV1().Events(s.Namespace).List(metav1.ListOptions{})
+	if err != nil {
+		t.Logf("Failed to list events in namespace %q", s.Namespace)
+		return
+	}
+	t.Logf("Found %d events.", len(events.Items))
+	// Sort events by their first timestamp
+	sortedEvents := events.Items
+	if len(sortedEvents) > 1 {
+		sort.Sort(byFirstTimestamp(sortedEvents))
+	}
+	for _, e := range sortedEvents {
+		t.Logf("At %v - event for %v/%v: %v %v: %v", e.FirstTimestamp, e.Namespace, e.InvolvedObject.Name, e.Source, e.Reason, e.Message)
+	}
+}
+
+// byFirstTimestamp sorts a slice of events by first timestamp, using their involvedObject's name as a tie breaker.
+type byFirstTimestamp []v1.Event
+
+func (o byFirstTimestamp) Len() int      { return len(o) }
+func (o byFirstTimestamp) Swap(i, j int) { o[i], o[j] = o[j], o[i] }
+
+func (o byFirstTimestamp) Less(i, j int) bool {
+	if o[i].FirstTimestamp.Equal(&o[j].FirstTimestamp) {
+		return o[i].InvolvedObject.Name < o[j].InvolvedObject.Name
+	}
+	return o[i].FirstTimestamp.Before(&o[j].FirstTimestamp)
+}