func()

in pkg/providers/v1/aws_fakes.go [317:380]

• 57 lines of code
• 23 McCabe index (conditional complexity)

func (m *FakeMetadata) GetMetadata(key string) (string, error) {
	networkInterfacesPrefix := "network/interfaces/macs/"
	i := m.aws.selfInstance
	if key == "placement/availability-zone" {
		az := ""
		if i.Placement != nil {
			az = aws.StringValue(i.Placement.AvailabilityZone)
		}
		return az, nil
	} else if key == "instance-id" {
		return aws.StringValue(i.InstanceId), nil
	} else if key == "local-hostname" {
		return aws.StringValue(i.PrivateDnsName), nil
	} else if key == "public-hostname" {
		return aws.StringValue(i.PublicDnsName), nil
	} else if key == "local-ipv4" {
		return aws.StringValue(i.PrivateIpAddress), nil
	} else if key == "public-ipv4" {
		return aws.StringValue(i.PublicIpAddress), nil
	} else if strings.HasPrefix(key, networkInterfacesPrefix) {
		if key == networkInterfacesPrefix {
			// Return the MACs sorted lexically rather than in device-number
			// order; this matches AWS's observed behavior and lets us test
			// that we fix up the ordering correctly in NodeAddresses().
			macs := make([]string, len(m.aws.networkInterfacesMacs))
			copy(macs, m.aws.networkInterfacesMacs)
			sort.Strings(macs)
			return strings.Join(macs, "/\n") + "/\n", nil
		}

		keySplit := strings.Split(key, "/")
		macParam := keySplit[3]
		if len(keySplit) == 5 && keySplit[4] == "vpc-id" {
			for i, macElem := range m.aws.networkInterfacesMacs {
				if macParam == macElem {
					return m.aws.networkInterfacesVpcIDs[i], nil
				}
			}
		}
		if len(keySplit) == 5 && keySplit[4] == "device-number" {
			for i, macElem := range m.aws.networkInterfacesMacs {
				if macParam == macElem {
					n := i
					if n > 0 {
						// Introduce an artificial gap, just to test eg: [eth0, eth2]
						n++
					}
					return fmt.Sprintf("%d\n", n), nil
				}
			}
		}
		if len(keySplit) == 5 && keySplit[4] == "local-ipv4s" {
			for i, macElem := range m.aws.networkInterfacesMacs {
				if macParam == macElem {
					return strings.Join(m.aws.networkInterfacesPrivateIPs[i], "/\n"), nil
				}
			}
		}

		return "", nil
	}

	return "", nil
}