Adjust ELB tests and clarify code

kubernetes · May 13, 2016 · 57780d9 · 57780d9
1 parent fa2ca50
commit 57780d9
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Showing 2 changed files with 45 additions and 7 deletions.
diff --git a/pkg/cloudprovider/providers/aws/aws_loadbalancer.go b/pkg/cloudprovider/providers/aws/aws_loadbalancer.go
@@ -238,15 +238,16 @@ func (s *AWSCloud) ensureLoadBalancer(namespacedName types.NamespacedName, loadB
 				setPolicy := false
 				instancePort := *listener.InstancePort
 
-				if val, ok := proxyProtocolBackends[instancePort]; !ok {
+				if currentState, ok := proxyProtocolBackends[instancePort]; !ok {
 					// This is a new ELB backend so we only need to worry about
-					// adding a policy and not removing an existing one
+					// potentientally adding a policy and not removing an
+					// existing one
 					setPolicy = proxyProtocol
 				} else {
 					foundBackends[instancePort] = true
-					// This is an existing ELB backend so we only need to
-					// determine if the state changed
-					setPolicy = (val != proxyProtocol)
+					// This is an existing ELB backend so we need to determine
+					// if the state changed
+					setPolicy = (currentState != proxyProtocol)
 				}
 
 				if setPolicy {
@@ -259,8 +260,9 @@ func (s *AWSCloud) ensureLoadBalancer(namespacedName types.NamespacedName, loadB
 				}
 			}
 
-			// We now need to figure out which backend policies need removed because Amazon
-			// will keep the policies around even if there is no corresponding listener
+			// We now need to figure out if any backend policies need removed
+			// because these old policies will stick around even if there is no
+			// corresponding listener anymore
 			for instancePort, found := range foundBackends {
 				if !found {
 					glog.V(2).Infof("Adjusting AWS loadbalancer proxy protocol on node port %d. Setting to false", instancePort)

diff --git a/pkg/cloudprovider/providers/aws/aws_test.go b/pkg/cloudprovider/providers/aws/aws_test.go
@@ -30,6 +30,7 @@ import (
 	"github.com/golang/glog"
 	"k8s.io/kubernetes/pkg/api"
 	"k8s.io/kubernetes/pkg/api/unversioned"
+	"k8s.io/kubernetes/pkg/util/sets"
 
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/mock"
@@ -487,6 +488,14 @@ func (elb *FakeELB) ConfigureHealthCheck(*elb.ConfigureHealthCheckInput) (*elb.C
 	panic("Not implemented")
 }
 
+func (elb *FakeELB) CreateLoadBalancerPolicy(*elb.CreateLoadBalancerPolicyInput) (*elb.CreateLoadBalancerPolicyOutput, error) {
+	panic("Not implemented")
+}
+
+func (elb *FakeELB) SetLoadBalancerPoliciesForBackendServer(*elb.SetLoadBalancerPoliciesForBackendServerInput) (*elb.SetLoadBalancerPoliciesForBackendServerOutput, error) {
+	panic("Not implemented")
+}
+
 type FakeASG struct {
 	aws *FakeAWSServices
 }
@@ -1302,3 +1311,30 @@ func TestBuildListener(t *testing.T) {
 		}
 	}
 }
+
+func TestProxyProtocolEnabled(t *testing.T) {
+	policies := sets.NewString(ProxyProtocolPolicyName, "FooBarFoo")
+	fakeBackend := &elb.BackendServerDescription{
+		InstancePort: aws.Int64(80),
+		PolicyNames:  stringSetToPointers(policies),
+	}
+	result := proxyProtocolEnabled(fakeBackend)
+	assert.True(t, result, "expected to find %s in %s", ProxyProtocolPolicyName, policies)
+
+	policies = sets.NewString("FooBarFoo")
+	fakeBackend = &elb.BackendServerDescription{
+		InstancePort: aws.Int64(80),
+		PolicyNames: []*string{
+			aws.String("FooBarFoo"),
+		},
+	}
+	result = proxyProtocolEnabled(fakeBackend)
+	assert.False(t, result, "did not expect to find %s in %s", ProxyProtocolPolicyName, policies)
+
+	policies = sets.NewString()
+	fakeBackend = &elb.BackendServerDescription{
+		InstancePort: aws.Int64(80),
+	}
+	result = proxyProtocolEnabled(fakeBackend)
+	assert.False(t, result, "did not expect to find %s in %s", ProxyProtocolPolicyName, policies)
+}