func TestFindInstancesByNodeName(t *testing.T) {
awsServices := NewFakeAWSServices()
nodeNameOne := "my-dns.internal"
nodeNameTwo := "my-dns-two.internal"
var tag ec2.Tag
tag.Key = aws.String(TagNameKubernetesCluster)
tag.Value = aws.String(TestClusterId)
tags := []*ec2.Tag{&tag}
var runningInstance ec2.Instance
runningInstance.InstanceId = aws.String("i-running")
runningInstance.PrivateDnsName = aws.String(nodeNameOne)
runningInstance.State = &ec2.InstanceState{Code: aws.Int64(16), Name: aws.String("running")}
runningInstance.Tags = tags
var secondInstance ec2.Instance
secondInstance.InstanceId = aws.String("i-running")
secondInstance.PrivateDnsName = aws.String(nodeNameTwo)
secondInstance.State = &ec2.InstanceState{Code: aws.Int64(48), Name: aws.String("running")}
secondInstance.Tags = tags
var terminatedInstance ec2.Instance
terminatedInstance.InstanceId = aws.String("i-terminated")
terminatedInstance.PrivateDnsName = aws.String(nodeNameOne)
terminatedInstance.State = &ec2.InstanceState{Code: aws.Int64(48), Name: aws.String("terminated")}
terminatedInstance.Tags = tags
instances := []*ec2.Instance{&secondInstance, &runningInstance, &terminatedInstance}
awsServices.instances = append(awsServices.instances, instances...)
c, err := newAWSCloud(strings.NewReader("[global]"), awsServices)
if err != nil {
t.Errorf("Error building aws cloud: %v", err)
return
}
nodeNames := []string{nodeNameOne}
returnedInstances, errr := c.getInstancesByNodeNames(nodeNames)
if errr != nil {
t.Errorf("Failed to find instance: %v", err)
return
}
if len(returnedInstances) != 1 {
t.Errorf("Expected a single isntance but found: %v", returnedInstances)
}
if *returnedInstances[0].PrivateDnsName != nodeNameOne {
t.Errorf("Expected node name %v but got %v", nodeNameOne, returnedInstances[0].PrivateDnsName)
}
}
func TestNodeAddresses(t *testing.T) {
// Note these instances have the same name
// (we test that this produces an error)
var instance0 ec2.Instance
var instance1 ec2.Instance
//0
instance0.InstanceId = aws.String("instance-same")
instance0.PrivateDnsName = aws.String("instance-same.ec2.internal")
instance0.PrivateIpAddress = aws.String("192.168.0.1")
instance0.PublicIpAddress = aws.String("1.2.3.4")
instance0.InstanceType = aws.String("c3.large")
state0 := ec2.InstanceState{
Name: aws.String("running"),
}
instance0.State = &state0
//1
instance1.InstanceId = aws.String("instance-same")
instance1.PrivateDnsName = aws.String("instance-same.ec2.internal")
instance1.PrivateIpAddress = aws.String("192.168.0.2")
instance1.InstanceType = aws.String("c3.large")
state1 := ec2.InstanceState{
Name: aws.String("running"),
}
instance1.State = &state1
instances := []*ec2.Instance{&instance0, &instance1}
aws1 := mockInstancesResp([]*ec2.Instance{})
_, err1 := aws1.NodeAddresses("instance-mismatch.ec2.internal")
if err1 == nil {
t.Errorf("Should error when no instance found")
}
aws2 := mockInstancesResp(instances)
_, err2 := aws2.NodeAddresses("instance-same.ec2.internal")
if err2 == nil {
t.Errorf("Should error when multiple instances found")
}
aws3 := mockInstancesResp(instances[0:1])
addrs3, err3 := aws3.NodeAddresses("instance-same.ec2.internal")
if err3 != nil {
t.Errorf("Should not error when instance found")
}
if len(addrs3) != 3 {
t.Errorf("Should return exactly 3 NodeAddresses")
}
testHasNodeAddress(t, addrs3, api.NodeInternalIP, "192.168.0.1")
testHasNodeAddress(t, addrs3, api.NodeLegacyHostIP, "192.168.0.1")
testHasNodeAddress(t, addrs3, api.NodeExternalIP, "1.2.3.4")
}
func TestFindInstanceByNodeNameExcludesTerminatedInstances(t *testing.T) {
awsServices := NewFakeAWSServices()
nodeName := "my-dns.internal"
var tag ec2.Tag
tag.Key = aws.String(TagNameKubernetesCluster)
tag.Value = aws.String(TestClusterId)
tags := []*ec2.Tag{&tag}
var runningInstance ec2.Instance
runningInstance.InstanceId = aws.String("i-running")
runningInstance.PrivateDnsName = aws.String(nodeName)
runningInstance.State = &ec2.InstanceState{Code: aws.Int64(16), Name: aws.String("running")}
runningInstance.Tags = tags
var terminatedInstance ec2.Instance
terminatedInstance.InstanceId = aws.String("i-terminated")
terminatedInstance.PrivateDnsName = aws.String(nodeName)
terminatedInstance.State = &ec2.InstanceState{Code: aws.Int64(48), Name: aws.String("terminated")}
terminatedInstance.Tags = tags
instances := []*ec2.Instance{&terminatedInstance, &runningInstance}
awsServices.instances = append(awsServices.instances, instances...)
c, err := newAWSCloud(strings.NewReader("[global]"), awsServices)
if err != nil {
t.Errorf("Error building aws cloud: %v", err)
return
}
instance, err := c.findInstanceByNodeName(nodeName)
if err != nil {
t.Errorf("Failed to find instance: %v", err)
return
}
if *instance.InstanceId != "i-running" {
t.Errorf("Expected running instance but got %v", *instance.InstanceId)
}
}
func TestGetResources(t *testing.T) {
var instance0 ec2.Instance
var instance1 ec2.Instance
var instance2 ec2.Instance
//0
instance0.InstanceID = aws.String("m3.medium")
instance0.InstanceType = aws.String("m3.medium")
state0 := ec2.InstanceState{
Name: aws.String("running"),
}
instance0.State = &state0
//1
instance1.InstanceID = aws.String("r3.8xlarge")
instance1.InstanceType = aws.String("r3.8xlarge")
state1 := ec2.InstanceState{
Name: aws.String("running"),
}
instance1.State = &state1
//2
instance2.InstanceID = aws.String("unknown.type")
instance2.InstanceType = aws.String("unknown.type")
state2 := ec2.InstanceState{
Name: aws.String("running"),
}
instance2.State = &state2
instances := []*ec2.Instance{&instance0, &instance1, &instance2}
aws1 := mockInstancesResp(instances)
res1, err1 := aws1.GetNodeResources("m3.medium")
if err1 != nil {
t.Errorf("Should not error when instance type found: %v", err1)
}
e1 := &api.NodeResources{
Capacity: api.ResourceList{
api.ResourceCPU: *resource.NewMilliQuantity(int64(3.0*1000), resource.DecimalSI),
api.ResourceMemory: *resource.NewQuantity(int64(3.75*1024*1024*1024), resource.BinarySI),
},
}
if !reflect.DeepEqual(e1, res1) {
t.Errorf("Expected %v, got %v", e1, res1)
}
res2, err2 := aws1.GetNodeResources("r3.8xlarge")
if err2 != nil {
t.Errorf("Should not error when instance type found: %v", err2)
}
e2 := &api.NodeResources{
Capacity: api.ResourceList{
api.ResourceCPU: *resource.NewMilliQuantity(int64(104.0*1000), resource.DecimalSI),
api.ResourceMemory: *resource.NewQuantity(int64(244.0*1024*1024*1024), resource.BinarySI),
},
}
if !reflect.DeepEqual(e2, res2) {
t.Errorf("Expected %v, got %v", e2, res2)
}
res3, err3 := aws1.GetNodeResources("unknown.type")
if err3 != nil {
t.Errorf("Should not error when unknown instance type")
}
if res3 != nil {
t.Errorf("Should return nil resources when unknown instance type")
}
}
func TestList(t *testing.T) {
// TODO this setup is not very clean and could probably be improved
var instance0 ec2.Instance
var instance1 ec2.Instance
var instance2 ec2.Instance
var instance3 ec2.Instance
//0
tag0 := ec2.Tag{
Key: aws.String("Name"),
Value: aws.String("foo"),
}
instance0.Tags = []*ec2.Tag{&tag0}
instance0.InstanceID = aws.String("instance0")
state0 := ec2.InstanceState{
Name: aws.String("running"),
}
instance0.State = &state0
//1
tag1 := ec2.Tag{
Key: aws.String("Name"),
Value: aws.String("bar"),
}
instance1.Tags = []*ec2.Tag{&tag1}
instance1.InstanceID = aws.String("instance1")
state1 := ec2.InstanceState{
Name: aws.String("running"),
}
instance1.State = &state1
//2
tag2 := ec2.Tag{
Key: aws.String("Name"),
Value: aws.String("baz"),
}
instance2.Tags = []*ec2.Tag{&tag2}
instance2.InstanceID = aws.String("instance2")
state2 := ec2.InstanceState{
Name: aws.String("running"),
}
instance2.State = &state2
//3
tag3 := ec2.Tag{
Key: aws.String("Name"),
Value: aws.String("quux"),
}
instance3.Tags = []*ec2.Tag{&tag3}
instance3.InstanceID = aws.String("instance3")
state3 := ec2.InstanceState{
Name: aws.String("running"),
}
instance3.State = &state3
instances := []*ec2.Instance{&instance0, &instance1, &instance2, &instance3}
aws := mockInstancesResp(instances)
table := []struct {
input string
expect []string
}{
{"blahonga", []string{}},
{"quux", []string{"instance3"}},
{"a", []string{"instance1", "instance2"}},
}
for _, item := range table {
result, err := aws.List(item.input)
if err != nil {
t.Errorf("Expected call with %v to succeed, failed with %s", item.input, err)
}
if e, a := item.expect, result; !reflect.DeepEqual(e, a) {
t.Errorf("Expected %v, got %v", e, a)
}
}
}
func TestNodeAddresses(t *testing.T) {
// Note these instances have the same name
// (we test that this produces an error)
var instance0 ec2.Instance
var instance1 ec2.Instance
var instance2 ec2.Instance
//0
instance0.InstanceId = aws.String("i-self")
instance0.PrivateDnsName = aws.String("instance-same.ec2.internal")
instance0.PrivateIpAddress = aws.String("192.168.0.1")
instance0.PublicIpAddress = aws.String("1.2.3.4")
instance0.InstanceType = aws.String("c3.large")
state0 := ec2.InstanceState{
Name: aws.String("running"),
}
instance0.State = &state0
//1
instance1.InstanceId = aws.String("i-self")
instance1.PrivateDnsName = aws.String("instance-same.ec2.internal")
instance1.PrivateIpAddress = aws.String("192.168.0.2")
instance1.InstanceType = aws.String("c3.large")
state1 := ec2.InstanceState{
Name: aws.String("running"),
}
instance1.State = &state1
//2
instance2.InstanceId = aws.String("i-self")
instance2.PrivateDnsName = aws.String("instance-other.ec2.internal")
instance2.PrivateIpAddress = aws.String("192.168.0.1")
instance2.PublicIpAddress = aws.String("1.2.3.4")
instance2.InstanceType = aws.String("c3.large")
state2 := ec2.InstanceState{
Name: aws.String("running"),
}
instance2.State = &state2
instances := []*ec2.Instance{&instance0, &instance1, &instance2}
aws1, _ := mockInstancesResp([]*ec2.Instance{})
_, err1 := aws1.NodeAddresses("instance-mismatch.ec2.internal")
if err1 == nil {
t.Errorf("Should error when no instance found")
}
aws2, _ := mockInstancesResp(instances)
_, err2 := aws2.NodeAddresses("instance-same.ec2.internal")
if err2 == nil {
t.Errorf("Should error when multiple instances found")
}
aws3, _ := mockInstancesResp(instances[0:1])
addrs3, err3 := aws3.NodeAddresses("instance-same.ec2.internal")
if err3 != nil {
t.Errorf("Should not error when instance found")
}
if len(addrs3) != 3 {
t.Errorf("Should return exactly 3 NodeAddresses")
}
testHasNodeAddress(t, addrs3, api.NodeInternalIP, "192.168.0.1")
testHasNodeAddress(t, addrs3, api.NodeLegacyHostIP, "192.168.0.1")
testHasNodeAddress(t, addrs3, api.NodeExternalIP, "1.2.3.4")
aws4, fakeServices := mockInstancesResp([]*ec2.Instance{})
fakeServices.externalIP = "2.3.4.5"
fakeServices.internalIP = "192.168.0.2"
aws4.selfAWSInstance = &awsInstance{nodeName: fakeServices.instanceId}
addrs4, err4 := aws4.NodeAddresses(fakeServices.instanceId)
if err4 != nil {
t.Errorf("unexpected error: %v", err4)
}
testHasNodeAddress(t, addrs4, api.NodeInternalIP, "192.168.0.2")
testHasNodeAddress(t, addrs4, api.NodeExternalIP, "2.3.4.5")
}
func TestNodeAddresses(t *testing.T) {
// Note these instances have the same name
// (we test that this produces an error)
var instance0 ec2.Instance
var instance1 ec2.Instance
var instance2 ec2.Instance
//0
instance0.InstanceId = aws.String("i-0")
instance0.PrivateDnsName = aws.String("instance-same.ec2.internal")
instance0.PrivateIpAddress = aws.String("192.168.0.1")
instance0.PublicIpAddress = aws.String("1.2.3.4")
instance0.InstanceType = aws.String("c3.large")
instance0.Placement = &ec2.Placement{AvailabilityZone: aws.String("us-east-1a")}
state0 := ec2.InstanceState{
Name: aws.String("running"),
}
instance0.State = &state0
//1
instance1.InstanceId = aws.String("i-1")
instance1.PrivateDnsName = aws.String("instance-same.ec2.internal")
instance1.PrivateIpAddress = aws.String("192.168.0.2")
instance1.InstanceType = aws.String("c3.large")
instance1.Placement = &ec2.Placement{AvailabilityZone: aws.String("us-east-1a")}
state1 := ec2.InstanceState{
Name: aws.String("running"),
}
instance1.State = &state1
//2
instance2.InstanceId = aws.String("i-2")
instance2.PrivateDnsName = aws.String("instance-other.ec2.internal")
instance2.PrivateIpAddress = aws.String("192.168.0.1")
instance2.PublicIpAddress = aws.String("1.2.3.4")
instance2.InstanceType = aws.String("c3.large")
instance2.Placement = &ec2.Placement{AvailabilityZone: aws.String("us-east-1a")}
state2 := ec2.InstanceState{
Name: aws.String("running"),
}
instance2.State = &state2
instances := []*ec2.Instance{&instance0, &instance1, &instance2}
aws1, _ := mockInstancesResp(&instance0, []*ec2.Instance{&instance0})
_, err1 := aws1.NodeAddresses("instance-mismatch.ec2.internal")
if err1 == nil {
t.Errorf("Should error when no instance found")
}
aws2, _ := mockInstancesResp(&instance2, instances)
_, err2 := aws2.NodeAddresses("instance-same.ec2.internal")
if err2 == nil {
t.Errorf("Should error when multiple instances found")
}
aws3, _ := mockInstancesResp(&instance0, instances[0:1])
addrs3, err3 := aws3.NodeAddresses("instance-same.ec2.internal")
if err3 != nil {
t.Errorf("Should not error when instance found")
}
if len(addrs3) != 3 {
t.Errorf("Should return exactly 3 NodeAddresses")
}
testHasNodeAddress(t, addrs3, api.NodeInternalIP, "192.168.0.1")
testHasNodeAddress(t, addrs3, api.NodeLegacyHostIP, "192.168.0.1")
testHasNodeAddress(t, addrs3, api.NodeExternalIP, "1.2.3.4")
// Fetch from metadata
aws4, fakeServices := mockInstancesResp(&instance0, []*ec2.Instance{&instance0})
fakeServices.selfInstance.PublicIpAddress = aws.String("2.3.4.5")
fakeServices.selfInstance.PrivateIpAddress = aws.String("192.168.0.2")
addrs4, err4 := aws4.NodeAddresses(*instance0.PrivateDnsName)
if err4 != nil {
t.Errorf("unexpected error: %v", err4)
}
testHasNodeAddress(t, addrs4, api.NodeInternalIP, "192.168.0.2")
testHasNodeAddress(t, addrs4, api.NodeExternalIP, "2.3.4.5")
}