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 NewFakeAWSServices() *FakeAWSServices {
s := &FakeAWSServices{}
s.availabilityZone = "us-east-1a"
s.ec2 = &FakeEC2{aws: s}
s.elb = &FakeELB{aws: s}
s.asg = &FakeASG{aws: s}
s.metadata = &FakeMetadata{aws: s}
s.networkInterfacesMacs = []string{"aa:bb:cc:dd:ee:00", "aa:bb:cc:dd:ee:01"}
s.networkInterfacesVpcIDs = []string{"vpc-mac0", "vpc-mac1"}
s.instanceId = "i-self"
s.privateDnsName = "ip-172-20-0-100.ec2.internal"
var selfInstance ec2.Instance
selfInstance.InstanceId = &s.instanceId
selfInstance.PrivateDnsName = &s.privateDnsName
s.instances = []*ec2.Instance{&selfInstance}
var tag ec2.Tag
tag.Key = aws.String(TagNameKubernetesCluster)
tag.Value = aws.String(TestClusterId)
selfInstance.Tags = []*ec2.Tag{&tag}
return s
}
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 NewFakeAWSServices() *FakeAWSServices {
s := &FakeAWSServices{}
s.availabilityZone = "us-east-1a"
s.ec2 = &FakeEC2{aws: s}
s.elb = &FakeELB{aws: s}
s.metadata = &FakeMetadata{aws: s}
s.instanceId = "i-self"
var selfInstance ec2.Instance
selfInstance.InstanceID = &s.instanceId
s.instances = []*ec2.Instance{&selfInstance}
var tag ec2.Tag
tag.Key = aws.String(TagNameKubernetesCluster)
tag.Value = aws.String(TestClusterId)
selfInstance.Tags = []*ec2.Tag{&tag}
return s
}
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)
}
}
}