func resource_aws_internet_gateway_attach(
	ec2conn *ec2.EC2,
	s *terraform.ResourceState,
	vpcId string) error {
	log.Printf(
		"[INFO] Attaching Internet Gateway '%s' to VPC '%s'",
		s.ID,
		vpcId)
	_, err := ec2conn.AttachInternetGateway(s.ID, vpcId)
	if err != nil {
		return err
	}

	// Wait for it to be fully attached before continuing
	log.Printf("[DEBUG] Waiting for internet gateway (%s) to attach", s.ID)
	stateConf := &resource.StateChangeConf{
		Pending: []string{"detached", "attaching"},
		Target:  "available",
		Refresh: IGAttachStateRefreshFunc(ec2conn, s.ID, "available"),
		Timeout: 1 * time.Minute,
	}
	if _, err := stateConf.WaitForState(); err != nil {
		return fmt.Errorf(
			"Error waiting for internet gateway (%s) to attach: %s",
			s.ID, err)
	}

	return nil
}
Beispiel #2
0
func waitForState(ec2conn *ec2.EC2, originalInstance *ec2.Instance, pending []string, target string) (i *ec2.Instance, err error) {
	log.Printf("Waiting for instance state to become: %s", target)

	i = originalInstance
	for i.State.Name != target {
		found := false
		for _, allowed := range pending {
			if i.State.Name == allowed {
				found = true
				break
			}
		}

		if !found {
			fmt.Errorf("unexpected state '%s', wanted target '%s'", i.State.Name, target)
			return
		}

		var resp *ec2.InstancesResp
		resp, err = ec2conn.Instances([]string{i.InstanceId}, ec2.NewFilter())
		if err != nil {
			return
		}

		i = &resp.Reservations[0].Instances[0]
		time.Sleep(2 * time.Second)
	}

	return
}
Beispiel #3
0
// copyAMI starts the AMI copy
func copyAMI(awsec2dest *ec2.EC2, s *session, amis *map[string]string) {
	if s.destRegion.Name != s.sourceRegion.Name {
		for amiId, instanceId := range *amis {
			backupAmiName := fmt.Sprintf("%s-%s-%s", s.instanceNameTag, timeStamp, amiId)
			backupDesc := fmt.Sprintf("%s %s %s", s.instanceNameTag, timeString, amiId)
			copyOpts := ec2.CopyImage{
				SourceRegion:  s.sourceRegion.Name,
				SourceImageId: amiId,
				Name:          backupAmiName,
				Description:   backupDesc,
				ClientToken:   "",
			}
			copyResp, err := awsec2dest.CopyImage(&copyOpts)
			if err != nil {
				s.fatal("EC2 API CopyImage failed")
			}
			s.debug(fmt.Sprintf("Started copy of %s from %s (%s) to %s (%s).", s.instanceNameTag, s.sourceRegion.Name, amiId, s.destRegion.Name, copyResp.ImageId))
			_, err = awsec2dest.CreateTags([]string{copyResp.ImageId}, []ec2.Tag{
				{"hostname", s.instanceNameTag},
				{"instance", instanceId},
				{"sourceregion", s.sourceRegion.Name},
				{"date", timeString},
				{"timestamp", timeSecs},
			})
			if err != nil {
				s.fatal(fmt.Sprintf("Error tagging new AMI: %s", err.Error()))
			}
		}
	} else {
		s.debug("Not copying AMI - source and dest regions match")
	}
}
Beispiel #4
0
// SSHAddress returns a function that can be given to the SSH communicator
// for determining the SSH address based on the instance DNS name.
func SSHAddress(e *ec2.EC2, port int) func(multistep.StateBag) (string, error) {
	return func(state multistep.StateBag) (string, error) {
		for j := 0; j < 2; j++ {
			var host string
			i := state.Get("instance").(*ec2.Instance)
			if i.DNSName != "" {
				host = i.DNSName
			} else if i.VpcId != "" {
				if i.PublicIpAddress != "" {
					host = i.PublicIpAddress
				} else {
					host = i.PrivateIpAddress
				}
			}

			if host != "" {
				return fmt.Sprintf("%s:%d", host, port), nil
			}

			r, err := e.Instances([]string{i.InstanceId}, ec2.NewFilter())
			if err != nil {
				return "", err
			}

			if len(r.Reservations) == 0 || len(r.Reservations[0].Instances) == 0 {
				return "", fmt.Errorf("instance not found: %s", i.InstanceId)
			}

			state.Put("instance", &r.Reservations[0].Instances[0])
			time.Sleep(1 * time.Second)
		}

		return "", errors.New("couldn't determine IP address for instance")
	}
}
Beispiel #5
0
// InstanceStateRefreshFunc returns a StateRefreshFunc that is used to watch
// an EC2 instance.
func InstanceStateRefreshFunc(conn *ec2.EC2, i *ec2.Instance) StateRefreshFunc {
	return func() (interface{}, string, error) {
		resp, err := conn.Instances([]string{i.InstanceId}, ec2.NewFilter())
		if err != nil {
			if ec2err, ok := err.(*ec2.Error); ok && ec2err.Code == "InvalidInstanceID.NotFound" {
				// Set this to nil as if we didn't find anything.
				resp = nil
			} else if isTransientNetworkError(err) {
				// Transient network error, treat it as if we didn't find anything
				resp = nil
			} else {
				log.Printf("Error on InstanceStateRefresh: %s", err)
				return nil, "", err
			}
		}

		if resp == nil || len(resp.Reservations) == 0 || len(resp.Reservations[0].Instances) == 0 {
			// Sometimes AWS just has consistency issues and doesn't see
			// our instance yet. Return an empty state.
			return nil, "", nil
		}

		i = &resp.Reservations[0].Instances[0]
		return i, i.State.Name, nil
	}
}
Beispiel #6
0
// SpotRequestStateRefreshFunc returns a StateRefreshFunc that is used to watch
// a spot request for state changes.
func SpotRequestStateRefreshFunc(conn *ec2.EC2, spotRequestId string) StateRefreshFunc {
	return func() (interface{}, string, error) {
		resp, err := conn.DescribeSpotRequests([]string{spotRequestId}, ec2.NewFilter())
		if err != nil {
			if ec2err, ok := err.(*ec2.Error); ok && ec2err.Code == "InvalidSpotInstanceRequestID.NotFound" {
				// Set this to nil as if we didn't find anything.
				resp = nil
			} else if isTransientNetworkError(err) {
				// Transient network error, treat it as if we didn't find anything
				resp = nil
			} else {
				log.Printf("Error on SpotRequestStateRefresh: %s", err)
				return nil, "", err
			}
		}

		if resp == nil || len(resp.SpotRequestResults) == 0 {
			// Sometimes AWS has consistency issues and doesn't see the
			// SpotRequest. Return an empty state.
			return nil, "", nil
		}

		i := resp.SpotRequestResults[0]
		return i, i.State, nil
	}
}
// Returns a single address by its ID
func resource_aws_eip_retrieve_address(id string, vpc bool, ec2conn *ec2.EC2) (*ec2.Address, error) {
	// Get the full address description for saving to state for
	// use in other resources
	assocIds := []string{}
	publicIps := []string{}
	if vpc {
		assocIds = []string{id}
	} else {
		publicIps = []string{id}
	}

	log.Printf("[DEBUG] EIP describe configuration: %#v, %#v (vpc: %v)", assocIds, publicIps, vpc)

	describeAddresses, err := ec2conn.Addresses(publicIps, assocIds, nil)

	if err != nil {
		return nil, fmt.Errorf("Error retrieving EIP: %s", err)
	}

	// Verify AWS returned our EIP
	if len(describeAddresses.Addresses) != 1 ||
		describeAddresses.Addresses[0].AllocationId != id ||
		describeAddresses.Addresses[0].PublicIp != id {
		if err != nil {
			return nil, fmt.Errorf("Unable to find EIP: %#v", describeAddresses.Addresses)
		}
	}

	address := describeAddresses.Addresses[0]

	return &address, nil
}
// SGStateRefreshFunc returns a resource.StateRefreshFunc that is used to watch
// a security group.
func SGStateRefreshFunc(conn *ec2.EC2, id string) resource.StateRefreshFunc {
	return func() (interface{}, string, error) {
		sgs := []ec2.SecurityGroup{ec2.SecurityGroup{Id: id}}
		resp, err := conn.SecurityGroups(sgs, nil)
		if err != nil {
			if ec2err, ok := err.(*ec2.Error); ok {
				if ec2err.Code == "InvalidSecurityGroupID.NotFound" ||
					ec2err.Code == "InvalidGroup.NotFound" {
					resp = nil
					err = nil
				}
			}

			if err != nil {
				log.Printf("Error on SGStateRefresh: %s", err)
				return nil, "", err
			}
		}

		if resp == nil {
			return nil, "", nil
		}

		group := &resp.Groups[0]
		return group, "exists", nil
	}
}
Beispiel #9
0
func terminateInstances(c *C, e *ec2.EC2, insts []*ec2.Instance) {
	var ids []string
	for _, inst := range insts {
		if inst != nil {
			ids = append(ids, inst.InstanceId)
		}
	}
	_, err := e.TerminateInstances(ids)
	c.Check(err, IsNil, Commentf("%d INSTANCES LEFT RUNNING!!!", len(ids)))
}
Beispiel #10
0
//attachTags makes a call to EC2 to attach the given map of tags to a resource.
func attachTags(ec2Handle *ec2.EC2,
	tags map[string]string, instance string) error {

	tagSlice := []ec2.Tag{}
	for tag, value := range tags {
		tagSlice = append(tagSlice, ec2.Tag{tag, value})
	}

	_, err := ec2Handle.CreateTags([]string{instance}, tagSlice)
	return err
}
Beispiel #11
0
// InstanceStateRefreshFunc returns a StateRefreshFunc that is used to watch
// an EC2 instance.
func InstanceStateRefreshFunc(conn *ec2.EC2, i *ec2.Instance) StateRefreshFunc {
	return func() (interface{}, string, error) {
		resp, err := conn.Instances([]string{i.InstanceId}, ec2.NewFilter())
		if err != nil {
			return nil, "", err
		}

		i = &resp.Reservations[0].Instances[0]
		return i, i.State.Name, nil
	}
}
func resource_aws_internet_gateway_detach(
	ec2conn *ec2.EC2,
	s *terraform.ResourceState) error {
	if s.Attributes["vpc_id"] == "" {
		return nil
	}

	log.Printf(
		"[INFO] Detaching Internet Gateway '%s' from VPC '%s'",
		s.ID,
		s.Attributes["vpc_id"])
	wait := true
	_, err := ec2conn.DetachInternetGateway(s.ID, s.Attributes["vpc_id"])
	if err != nil {
		ec2err, ok := err.(*ec2.Error)
		if ok {
			if ec2err.Code == "InvalidInternetGatewayID.NotFound" {
				err = nil
				wait = false
			} else if ec2err.Code == "Gateway.NotAttached" {
				err = nil
				wait = false
			}
		}

		if err != nil {
			return err
		}
	}

	delete(s.Attributes, "vpc_id")

	if !wait {
		return nil
	}

	// Wait for it to be fully detached before continuing
	log.Printf("[DEBUG] Waiting for internet gateway (%s) to detach", s.ID)
	stateConf := &resource.StateChangeConf{
		Pending: []string{"attached", "detaching", "available"},
		Target:  "detached",
		Refresh: IGAttachStateRefreshFunc(ec2conn, s.ID, "detached"),
		Timeout: 1 * time.Minute,
	}
	if _, err := stateConf.WaitForState(); err != nil {
		return fmt.Errorf(
			"Error waiting for internet gateway (%s) to detach: %s",
			s.ID, err)
	}

	return nil
}
Beispiel #13
0
// findInstances searches for our instances
func findInstances(awsec2 *ec2.EC2, s *session) []ec2.Instance {
	filter := ec2.NewFilter()
	filter.Add("tag:Name", s.instanceNameTag)
	resp, err := awsec2.Instances(nil, filter)
	if err != nil {
		s.fatal(fmt.Sprintf("EC2 API DescribeInstances failed: %s", err.Error()))
	}
	instances := []ec2.Instance{}
	for _, reservation := range resp.Reservations {
		for _, instance := range reservation.Instances {
			instances = append(instances, instance)
		}
	}
	return instances
}
Beispiel #14
0
// findSnapshots returns a map of snapshots associated with an AMI
func findSnapshots(amiid string, awsec2 *ec2.EC2) (map[string]string, error) {
	snaps := make(map[string]string)
	resp, err := awsec2.Images([]string{amiid}, nil)
	if err != nil {
		return snaps, fmt.Errorf("EC2 API DescribeImages failed: %s", err.Error())
	}
	for _, image := range resp.Images {
		for _, bd := range image.BlockDevices {
			if len(bd.SnapshotId) > 0 {
				snaps[bd.SnapshotId] = bd.DeviceName
			}
		}
	}
	return snaps, nil
}
Beispiel #15
0
// WaitForAMI waits for the given AMI ID to become ready.
func WaitForAMI(c *ec2.EC2, imageId string) error {
	for {
		imageResp, err := c.Images([]string{imageId}, ec2.NewFilter())
		if err != nil {
			return err
		}

		if imageResp.Images[0].State == "available" {
			return nil
		}

		log.Printf("Image in state %s, sleeping 2s before checking again",
			imageResp.Images[0].State)
		time.Sleep(2 * time.Second)
	}
}
Beispiel #16
0
// InstanceStateRefreshFunc returns a StateRefreshFunc that is used to watch
// an EC2 instance.
func InstanceStateRefreshFunc(conn *ec2.EC2, i *ec2.Instance) StateRefreshFunc {
	return func() (interface{}, string, error) {
		resp, err := conn.Instances([]string{i.InstanceId}, ec2.NewFilter())
		if err != nil {
			log.Printf("Error on InstanceStateRefresh: %s", err)
			return nil, "", err
		}

		if len(resp.Reservations) == 0 || len(resp.Reservations[0].Instances) == 0 {
			// Sometimes AWS just has consistency issues and doesn't see
			// our instance yet. Return an empty state.
			return nil, "", nil
		}

		i = &resp.Reservations[0].Instances[0]
		return i, i.State.Name, nil
	}
}
Beispiel #17
0
func (client *Client) ListRegion(c chan []types.Ship, parameters url.Values, region *ec2.EC2) {
	log.Infof("List Instances for Region %s", region.Name)
	var final []types.Ship
	filter := ec2.NewFilter()
	filter.Add("tag-key", "docker")

	resp, err := region.Instances(nil, filter)
	if err != nil {
		c <- final
	}
	for _, pool := range resp.Reservations {
		for _, ship := range pool.Instances {
			if client.State(ship.State) != "end" {
				final = append(final, types.Ship{ship.InstanceId, client.SearchTag(ship.Tags, "Name"), ship.DNSName, ship.PublicIpAddress, client.State(ship.State), "Ubuntu 14.04", ship.InstanceType, 27017, "http", 0, nil, false})
			}
		}
	}
	c <- final
}
Beispiel #18
0
//getInstanceInfo returns the full ec2 instance info for the given instance ID.
//Note that this is the *instance* id, not the spot request ID, which is different.
func getInstanceInfo(ec2Handle *ec2.EC2, instanceId string) (*ec2.Instance, error) {
	amis := []string{instanceId}
	resp, err := ec2Handle.Instances(amis, nil)
	if err != nil {
		return nil, err
	}

	reservation := resp.Reservations
	if len(reservation) < 1 {
		return nil, evergreen.Logger.Errorf(slogger.ERROR, "No reservation found for "+
			"instance id: %v", instanceId)
	}

	instances := reservation[0].Instances
	if len(instances) < 1 {
		return nil, evergreen.Logger.Errorf(slogger.ERROR, "'%v' was not found in "+
			"reservation '%v'", instanceId, resp.Reservations[0].ReservationId)
	}
	return &instances[0], nil
}
Beispiel #19
0
// WaitForAMI waits for the given AMI ID to become ready.
func WaitForAMI(c *ec2.EC2, imageId string) error {
	for {
		imageResp, err := c.Images([]string{imageId}, ec2.NewFilter())
		if err != nil {
			if ec2err, ok := err.(*ec2.Error); ok && ec2err.Code == "InvalidAMIID.NotFound" {
				log.Println("AMI not found, probably state issues on AWS side. Trying again.")
				continue
			}

			return err
		}

		if imageResp.Images[0].State == "available" {
			return nil
		}

		log.Printf("Image in state %s, sleeping 2s before checking again",
			imageResp.Images[0].State)
		time.Sleep(2 * time.Second)
	}
}
// VPCStateRefreshFunc returns a resource.StateRefreshFunc that is used to watch
// a VPC.
func VPCStateRefreshFunc(conn *ec2.EC2, id string) resource.StateRefreshFunc {
	return func() (interface{}, string, error) {
		resp, err := conn.DescribeVpcs([]string{id}, ec2.NewFilter())
		if err != nil {
			if ec2err, ok := err.(*ec2.Error); ok && ec2err.Code == "InvalidVpcID.NotFound" {
				resp = nil
			} else {
				log.Printf("Error on VPCStateRefresh: %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
		}

		vpc := &resp.VPCs[0]
		return vpc, vpc.State, nil
	}
}
// resourceAwsRouteTableStateRefreshFunc returns a resource.StateRefreshFunc that is used to watch
// a RouteTable.
func resourceAwsRouteTableStateRefreshFunc(conn *ec2.EC2, id string) resource.StateRefreshFunc {
	return func() (interface{}, string, error) {
		resp, err := conn.DescribeRouteTables([]string{id}, ec2.NewFilter())
		if err != nil {
			if ec2err, ok := err.(*ec2.Error); ok && ec2err.Code == "InvalidRouteTableID.NotFound" {
				resp = nil
			} else {
				log.Printf("Error on RouteTableStateRefresh: %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
		}

		rt := &resp.RouteTables[0]
		return rt, "ready", nil
	}
}
// 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
	}
}
Beispiel #24
0
// AMIStateRefreshFunc returns a StateRefreshFunc that is used to watch
// an AMI for state changes.
func AMIStateRefreshFunc(conn *ec2.EC2, imageId string) StateRefreshFunc {
	return func() (interface{}, string, error) {
		resp, err := conn.Images([]string{imageId}, ec2.NewFilter())
		if err != nil {
			if ec2err, ok := err.(*ec2.Error); ok && ec2err.Code == "InvalidAMIID.NotFound" {
				// Set this to nil as if we didn't find anything.
				resp = nil
			} else {
				log.Printf("Error on AMIStateRefresh: %s", err)
				return nil, "", err
			}
		}

		if resp == nil || len(resp.Images) == 0 {
			// Sometimes AWS has consistency issues and doesn't see the
			// AMI. Return an empty state.
			return nil, "", nil
		}

		i := resp.Images[0]
		return i, i.State, nil
	}
}
Beispiel #25
0
// setTags is a helper to set the tags for a resource. It expects the
// tags field to be named "tags"
func setTags(conn *ec2.EC2, d *schema.ResourceData) error {
	if d.HasChange("tags") {
		oraw, nraw := d.GetChange("tags")
		o := oraw.(map[string]interface{})
		n := nraw.(map[string]interface{})
		create, remove := diffTags(tagsFromMap(o), tagsFromMap(n))

		// Set tags
		if len(remove) > 0 {
			log.Printf("[DEBUG] Removing tags: %#v", remove)
			if _, err := conn.DeleteTags([]string{d.Id()}, remove); err != nil {
				return err
			}
		}
		if len(create) > 0 {
			log.Printf("[DEBUG] Creating tags: %#v", create)
			if _, err := conn.CreateTags([]string{d.Id()}, create); err != nil {
				return err
			}
		}
	}

	return nil
}
Beispiel #26
0
// createAMIs actually creates the AMI(s)
func createAMIs(awsec2 *ec2.EC2, instances []ec2.Instance, s *session) map[string]string {
	newAMIs := make(map[string]string)
	pendingAMIs := make(map[string]bool)
	for _, instance := range instances {
		backupAmiName := fmt.Sprintf("%s-%s-%s", s.instanceNameTag, timeStamp, instance.InstanceId)
		backupDesc := fmt.Sprintf("%s %s %s", s.instanceNameTag, timeString, instance.InstanceId)
		blockDevices := []ec2.BlockDeviceMapping{}
		for _, i := range s.ignoreVolumes {
			blockDevices = append(blockDevices, ec2.BlockDeviceMapping{DeviceName: i, NoDevice: true})
		}
		createOpts := ec2.CreateImage{
			InstanceId:   instance.InstanceId,
			Name:         backupAmiName,
			Description:  backupDesc,
			NoReboot:     true,
			BlockDevices: blockDevices,
		}
		resp, err := awsec2.CreateImage(&createOpts)
		if err != nil {
			s.fatal(fmt.Sprintf("Error creating new AMI: %s", err.Error()))
		}
		_, err = awsec2.CreateTags([]string{resp.ImageId}, []ec2.Tag{
			{"hostname", s.instanceNameTag},
			{"instance", instance.InstanceId},
			{"date", timeString},
			{"timestamp", timeSecs},
		})
		if err != nil {
			s.fatal(fmt.Sprintf("Error tagging new AMI: %s", err.Error()))
		}
		newAMIs[resp.ImageId] = instance.InstanceId
		pendingAMIs[resp.ImageId] = true
		s.debug(fmt.Sprintf("Creating new AMI %s for %s (%s)", resp.ImageId, s.instanceNameTag, instance.InstanceId))
	}

	// wait for AMIs to be ready
	done := make(chan bool)
	go func() {
		for len(pendingAMIs) > 0 {
			s.debug(fmt.Sprintf("Sleeping for %d pending AMIs", len(pendingAMIs)))
			time.Sleep(apiPollInterval)
			list := []string{}
			for k, _ := range pendingAMIs {
				list = append(list, k)
			}
			images, err := awsec2.Images(list, nil)
			if err != nil {
				s.fatal("EC2 API Images failed")
			}
			for _, image := range images.Images {
				if image.State == "available" {
					delete(pendingAMIs, image.Id)
					s.ok(fmt.Sprintf("Created new AMI %s", image.Id))
				}
			}
		}
		done <- true
	}()
	select {
	case <-done:
	case <-time.After(s.timeout):
		list := []string{}
		for k, _ := range pendingAMIs {
			list = append(list, k)
		}
		s.fatal(fmt.Sprintf("Timeout waiting for AMIs in region %s: %s", s.sourceRegion.Name, strings.Join(list, " ,")))
	}
	return newAMIs
}
Beispiel #27
0
// purgeAMIs purges AMIs based on specified windows
func purgeAMIs(awsec2 *ec2.EC2, instanceNameTag string, windows []window, s *session) error {
	filter := ec2.NewFilter()
	filter.Add("tag:hostname", instanceNameTag)
	imageList, err := awsec2.Images(nil, filter)
	if err != nil {
		return fmt.Errorf("EC2 API Images failed: %s", err.Error())
	}
	s.debug(fmt.Sprintf("Found %d total images for %s in %s", len(imageList.Images), instanceNameTag, awsec2.Region.Name))
	images := map[string]time.Time{}
	for _, image := range imageList.Images {
		timestampTag := ""
		for _, tag := range image.Tags {
			if tag.Key == "timestamp" {
				timestampTag = tag.Value
			}
		}
		if len(timestampTag) < 1 {
			s.debug(fmt.Sprintf("AMI is missing timestamp tag - skipping: %s", image.Id))
			continue
		}
		timestamp, err := strconv.ParseInt(timestampTag, 10, 64)
		if err != nil {
			s.debug(fmt.Sprintf("AMI timestamp tag is corrupt - skipping: %s", image.Id))
			continue
		}
		images[image.Id] = time.Unix(timestamp, 0)
	}
	for _, window := range windows {
		s.debug(fmt.Sprintf("Window: 1 per %s from %s-%s", window.interval.String(), window.start, window.stop))
		for cursor := window.start; cursor.Before(window.stop); cursor = cursor.Add(window.interval) {
			imagesInThisInterval := []string{}
			imagesTimes := make(map[string]time.Time)
			oldestImage := ""
			oldestImageTime := time.Now()
			for id, when := range images {
				if when.After(cursor) && when.Before(cursor.Add(window.interval)) {
					imagesInThisInterval = append(imagesInThisInterval, id)
					imagesTimes[id] = when
					if when.Before(oldestImageTime) {
						oldestImageTime = when
						oldestImage = id
					}
				}
			}
			if len(imagesInThisInterval) > 1 {
				for _, id := range imagesInThisInterval {
					if id == oldestImage { // keep the oldest one
						s.debug(fmt.Sprintf("Keeping oldest AMI in this window: %s @ %s (%s->%s)", id, imagesTimes[id].Format(timeShortFormat), window.start.Format(timeShortFormat), window.stop.Format(timeShortFormat)))
						continue
					}
					// find snapshots associated with this AMI.
					snaps, err := findSnapshots(id, awsec2)
					if err != nil {
						return fmt.Errorf("EC2 API findSnapshots failed for %s: %s", id, err.Error())
					}
					// deregister the AMI.
					resp, err := awsec2.DeregisterImage(id)
					if err != nil {
						return fmt.Errorf("EC2 API DeregisterImage failed for %s: %s", id, err.Error())
					}
					if resp.Return != true {
						return fmt.Errorf("EC2 API DeregisterImage error for %s", id)
					}
					// delete snapshots associated with this AMI.
					for snap, _ := range snaps {
						if _, err := awsec2.DeleteSnapshots([]string{snap}); err != nil {
							return fmt.Errorf("EC2 API DeleteSnapshot failed: %s", err.Error())
						}
					}
					s.debug(fmt.Sprintf("Purged old AMI %s @ %s (%s->%s)", id, imagesTimes[id].Format(timeShortFormat), window.start.Format(timeShortFormat), window.stop.Format(timeShortFormat)))
				}
			}
		}
	}
	return nil
}
Beispiel #28
0
func startEC2Instance(ec2Handle *ec2.EC2, options *ec2.RunInstances,
	intentHost *host.Host) (*host.Host, *ec2.RunInstancesResp, error) {
	// start the instance
	resp, err := ec2Handle.RunInstances(options)

	if err != nil {
		// remove the intent host document
		rmErr := intentHost.Remove()
		if rmErr != nil {
			evergreen.Logger.Errorf(slogger.ERROR, "Could not remove intent host "+
				"“%v”: %v", intentHost.Id, rmErr)
		}
		return nil, nil, evergreen.Logger.Errorf(slogger.ERROR,
			"EC2 RunInstances API call returned error: %v", err)
	}

	evergreen.Logger.Logf(slogger.DEBUG, "Spawned %v instance", len(resp.Instances))

	// the instance should have been successfully spawned
	instance := resp.Instances[0]
	evergreen.Logger.Logf(slogger.DEBUG, "Started %v", instance.InstanceId)
	evergreen.Logger.Logf(slogger.DEBUG, "Key name: %v", string(options.KeyName))

	// find old intent host
	host, err := host.FindOne(host.ById(intentHost.Id))
	if host == nil {
		return nil, nil, evergreen.Logger.Errorf(slogger.ERROR, "Can't locate "+
			"record inserted for intended host “%v”", intentHost.Id)
	}
	if err != nil {
		return nil, nil, evergreen.Logger.Errorf(slogger.ERROR, "Can't locate "+
			"record inserted for intended host “%v” due to error: %v",
			intentHost.Id, err)
	}

	// we found the old document now we can insert the new one
	host.Id = instance.InstanceId
	err = host.Insert()
	if err != nil {
		return nil, nil, evergreen.Logger.Errorf(slogger.ERROR, "Could not insert "+
			"updated host information for “%v” with “%v”: %v", intentHost.Id,
			host.Id, err)
	}

	// remove the intent host document
	err = intentHost.Remove()
	if err != nil {
		return nil, nil, evergreen.Logger.Errorf(slogger.ERROR, "Could not remove "+
			"insert host “%v” (replaced by “%v”): %v", intentHost.Id, host.Id,
			err)
	}

	var infoResp *ec2.InstancesResp
	instanceInfoRetryCount := 0
	instanceInfoMaxRetries := 5

	for {
		infoResp, err = ec2Handle.Instances([]string{instance.InstanceId}, nil)
		if err != nil {
			instanceInfoRetryCount++
			if instanceInfoRetryCount == instanceInfoMaxRetries {
				evergreen.Logger.Errorf(slogger.ERROR, "There was an error querying for the "+
					"instance's information and retries are exhausted. The insance may "+
					"be up.")
				return nil, resp, err
			}

			evergreen.Logger.Errorf(slogger.DEBUG, "There was an error querying for the "+
				"instance's information. Retrying in 30 seconds. Error: %v", err)
			time.Sleep(30 * time.Second)
			continue
		}
		break
	}

	reservations := infoResp.Reservations
	if len(reservations) < 1 {
		return nil, resp, fmt.Errorf("Reservation was returned as nil, you " +
			"may have to check manually")
	}

	instancesInfo := reservations[0].Instances
	if len(instancesInfo) < 1 {
		return nil, resp, fmt.Errorf("Reservation appears to have no " +
			"associated instances")
	}
	return host, resp, nil
}