// IGAttachStateRefreshFunc returns a resource.StateRefreshFunc that is used
// watch the state of an internet gateway's attachment.
func IGAttachStateRefreshFunc(conn *ec2.EC2, id string, expected string) resource.StateRefreshFunc {
var start time.Time
return func() (interface{}, string, error) {
if start.IsZero() {
start = time.Now()
}
resp, err := conn.DescribeInternetGateways([]string{id}, ec2.NewFilter())
if err != nil {
ec2err, ok := err.(*ec2.Error)
if ok && ec2err.Code == "InvalidInternetGatewayID.NotFound" {
resp = nil
} else {
log.Printf("[ERROR] Error on IGStateRefresh: %s", err)
return nil, "", err
}
}
if resp == nil {
// Sometimes AWS just has consistency issues and doesn't see
// our instance yet. Return an empty state.
return nil, "", nil
}
ig := &resp.InternetGateways[0]
if time.Now().Sub(start) > 10*time.Second {
return ig, expected, nil
}
if len(ig.Attachments) == 0 {
// No attachments, we're detached
return ig, "detached", nil
}
return ig, ig.Attachments[0].State, nil
}
}
// IGStateRefreshFunc returns a resource.StateRefreshFunc that is used to watch
// an internet gateway.
func IGStateRefreshFunc(conn *ec2.EC2, id string) resource.StateRefreshFunc {
return func() (interface{}, string, error) {
resp, err := conn.DescribeInternetGateways([]string{id}, ec2.NewFilter())
if err != nil {
ec2err, ok := err.(*ec2.Error)
if ok && ec2err.Code == "InvalidInternetGatewayID.NotFound" {
resp = nil
} else {
log.Printf("[ERROR] Error on IGStateRefresh: %s", err)
return nil, "", err
}
}
if resp == nil {
// Sometimes AWS just has consistency issues and doesn't see
// our instance yet. Return an empty state.
return nil, "", nil
}
ig := &resp.InternetGateways[0]
return ig, "available", nil
}
}
