aws

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Published: May 14, 2019 License: Apache-2.0, Apache-2.0 Imports: 35 Imported by: 0

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Index

Constants

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const (
	// Provisioned IOPS SSD
	VolumeTypeIO1 = "io1"
	// General Purpose SSD
	VolumeTypeGP2 = "gp2"
	// Cold HDD (sc1)
	VolumeTypeSC1 = "sc1"
	// Throughput Optimized HDD
	VolumeTypeST1 = "st1"
)

AWS volume types

View Source
const (
	MinTotalIOPS = 100
	MaxTotalIOPS = 20000
)

AWS provisioning limits. Source: http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/EBSVolumeTypes.html

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const (
	// ResourceLifecycleOwned is the value we use when tagging resources to indicate
	// that the resource is considered owned and managed by the cluster,
	// and in particular that the lifecycle is tied to the lifecycle of the cluster.
	ResourceLifecycleOwned = "owned"
	// ResourceLifecycleShared is the value we use when tagging resources to indicate
	// that the resource is shared between multiple clusters, and should not be destroyed
	// if the cluster is destroyed.
	ResourceLifecycleShared = "shared"
)
View Source
const DefaultMaxEBSVolumes = 39

DefaultMaxEBSVolumes is the limit for volumes attached to an instance. Amazon recommends no more than 40; the system root volume uses at least one. See http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/volume_limits.html#linux-specific-volume-limits

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const DefaultVolumeType = "gp2"

DefaultVolumeType specifies which storage to use for newly created Volumes TODO: Remove when user/admin can configure volume types and thus we don't need hardcoded defaults.

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const MaxReadThenCreateRetries = 30

MaxReadThenCreateRetries sets the maximum number of attempts we will make when we read to see if something exists and then try to create it if we didn't find it. This can fail once in a consistent system if done in parallel In an eventually consistent system, it could fail unboundedly

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const ProviderName = "aws"

ProviderName is the name of this cloud provider.

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const ProxyProtocolPolicyName = "k8s-proxyprotocol-enabled"

ProxyProtocolPolicyName is the proxy protocol policy name

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const ServiceAnnotationLoadBalancerAccessLogEmitInterval = "service.beta.kubernetes.io/aws-load-balancer-access-log-emit-interval"

ServiceAnnotationLoadBalancerAccessLogEmitInterval is the annotation used to specify access log emit interval.

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const ServiceAnnotationLoadBalancerAccessLogEnabled = "service.beta.kubernetes.io/aws-load-balancer-access-log-enabled"

ServiceAnnotationLoadBalancerAccessLogEnabled is the annotation used on the service to enable or disable access logs.

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const ServiceAnnotationLoadBalancerAccessLogS3BucketName = "service.beta.kubernetes.io/aws-load-balancer-access-log-s3-bucket-name"

ServiceAnnotationLoadBalancerAccessLogS3BucketName is the annotation used to specify access log s3 bucket name.

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const ServiceAnnotationLoadBalancerAccessLogS3BucketPrefix = "service.beta.kubernetes.io/aws-load-balancer-access-log-s3-bucket-prefix"

ServiceAnnotationLoadBalancerAccessLogS3BucketPrefix is the annotation used to specify access log s3 bucket prefix.

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const ServiceAnnotationLoadBalancerBEProtocol = "service.beta.kubernetes.io/aws-load-balancer-backend-protocol"

ServiceAnnotationLoadBalancerBEProtocol is the annotation used on the service to specify the protocol spoken by the backend (pod) behind a listener. If `http` (default) or `https`, an HTTPS listener that terminates the

connection and parses headers is created.

If set to `ssl` or `tcp`, a "raw" SSL listener is used. If set to `http` and `aws-load-balancer-ssl-cert` is not used then a HTTP listener is used.

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const ServiceAnnotationLoadBalancerCertificate = "service.beta.kubernetes.io/aws-load-balancer-ssl-cert"

ServiceAnnotationLoadBalancerCertificate is the annotation used on the service to request a secure listener. Value is a valid certificate ARN. For more, see http://docs.aws.amazon.com/ElasticLoadBalancing/latest/DeveloperGuide/elb-listener-config.html CertARN is an IAM or CM certificate ARN, e.g. arn:aws:acm:us-east-1:123456789012:certificate/12345678-1234-1234-1234-123456789012

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const ServiceAnnotationLoadBalancerConnectionDrainingEnabled = "service.beta.kubernetes.io/aws-load-balancer-connection-draining-enabled"

ServiceAnnotationLoadBalancerConnectionDrainingEnabled is the annnotation used on the service to enable or disable connection draining.

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const ServiceAnnotationLoadBalancerConnectionDrainingTimeout = "service.beta.kubernetes.io/aws-load-balancer-connection-draining-timeout"

ServiceAnnotationLoadBalancerConnectionDrainingTimeout is the annotation used on the service to specify a connection draining timeout.

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const ServiceAnnotationLoadBalancerConnectionIdleTimeout = "service.beta.kubernetes.io/aws-load-balancer-connection-idle-timeout"

ServiceAnnotationLoadBalancerConnectionIdleTimeout is the annotation used on the service to specify the idle connection timeout.

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const ServiceAnnotationLoadBalancerCrossZoneLoadBalancingEnabled = "service.beta.kubernetes.io/aws-load-balancer-cross-zone-load-balancing-enabled"

ServiceAnnotationLoadBalancerCrossZoneLoadBalancingEnabled is the annotation used on the service to enable or disable cross-zone load balancing.

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const ServiceAnnotationLoadBalancerInternal = "service.beta.kubernetes.io/aws-load-balancer-internal"

ServiceAnnotationLoadBalancerInternal is the annotation used on the service to indicate that we want an internal ELB. Currently we accept only the value "0.0.0.0/0" - other values are an error. This lets us define more advanced semantics in future.

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const ServiceAnnotationLoadBalancerProxyProtocol = "service.beta.kubernetes.io/aws-load-balancer-proxy-protocol"

ServiceAnnotationLoadBalancerProxyProtocol is the annotation used on the service to enable the proxy protocol on an ELB. Right now we only accept the value "*" which means enable the proxy protocol on all ELB backends. In the future we could adjust this to allow setting the proxy protocol only on certain backends.

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const ServiceAnnotationLoadBalancerSSLPorts = "service.beta.kubernetes.io/aws-load-balancer-ssl-ports"

ServiceAnnotationLoadBalancerSSLPorts is the annotation used on the service to specify a comma-separated list of ports that will use SSL/HTTPS listeners. Defaults to '*' (all).

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const TagNameKubernetesClusterLegacy = "KubernetesCluster"

TagNameKubernetesClusterLegacy is the legacy tag name we use to differentiate multiple logically independent clusters running in the same AZ. The problem with it was that it did not allow shared resources.

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const TagNameKubernetesClusterPrefix = "kubernetes.io/cluster/"

TagNameKubernetesClusterPrefix is the tag name we use to differentiate multiple logically independent clusters running in the same AZ. The tag key = TagNameKubernetesClusterPrefix + clusterID The tag value is an ownership value

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const TagNameKubernetesService = "kubernetes.io/service-name"

TagNameKubernetesService is the tag name we use to differentiate multiple services. Used currently for ELBs only.

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const TagNameSubnetInternalELB = "kubernetes.io/role/internal-elb"

TagNameSubnetInternalELB is the tag name used on a subnet to designate that it should be used for internal ELBs

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const TagNameSubnetPublicELB = "kubernetes.io/role/elb"

TagNameSubnetPublicELB is the tag name used on a subnet to designate that it should be used for internet ELBs

Variables

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var WellKnownRegions = [...]string{

	"ap-northeast-1",
	"ap-northeast-2",
	"ap-south-1",
	"ap-southeast-1",
	"ap-southeast-2",
	"ca-central-1",
	"eu-central-1",
	"eu-west-1",
	"eu-west-2",
	"sa-east-1",
	"us-east-1",
	"us-east-2",
	"us-west-1",
	"us-west-2",

	"cn-north-1",
	"us-gov-west-1",
}

WellKnownRegions is the complete list of regions known to the AWS cloudprovider and credentialprovider.

Functions

func RecognizeRegion

func RecognizeRegion(region string)

RecognizeRegion is called for each AWS region we know about. It currently registers a credential provider for that region. There are two paths to discovering a region:

* we hard-code some well-known regions
* if a region is discovered from instance metadata, we add that

func RecognizeWellKnownRegions

func RecognizeWellKnownRegions()

RecognizeWellKnownRegions calls RecognizeRegion on each WellKnownRegion

func ResizeInstanceGroup

func ResizeInstanceGroup(asg ASG, instanceGroupName string, size int) error

ResizeInstanceGroup sets the size of the specificed instancegroup Exported so it can be used by the e2e tests, which don't want to instantiate a full cloudprovider.

Types

type ASG

ASG is a simple pass-through of the Autoscaling client interface, which allows for testing.

type Backoff

type Backoff struct {
	// contains filtered or unexported fields
}

Backoff manages a backoff that varies based on the recently observed failures

func (*Backoff) ComputeDelayForRequest

func (b *Backoff) ComputeDelayForRequest(now time.Time) time.Duration

ComputeDelayForRequest computes the delay required for a request, also updating internal state to count this request

func (*Backoff) ReportError

func (b *Backoff) ReportError()

ReportError is called when we observe a throttling error

type Cloud

type Cloud struct {
	// contains filtered or unexported fields
}

Cloud is an implementation of Interface, LoadBalancer and Instances for Amazon Web Services.

func (*Cloud) AddSSHKeyToAllInstances

func (c *Cloud) AddSSHKeyToAllInstances(user string, keyData []byte) error

AddSSHKeyToAllInstances is currently not implemented.

func (*Cloud) AttachDisk

func (c *Cloud) AttachDisk(diskName KubernetesVolumeID, nodeName types.NodeName, readOnly bool) (string, error)

AttachDisk implements Volumes.AttachDisk

func (*Cloud) Clusters

func (c *Cloud) Clusters() (cloudprovider.Clusters, bool)

Clusters returns the list of clusters.

func (*Cloud) CreateDisk

func (c *Cloud) CreateDisk(volumeOptions *VolumeOptions) (KubernetesVolumeID, error)

CreateDisk implements Volumes.CreateDisk

func (*Cloud) CreateRoute

func (c *Cloud) CreateRoute(clusterName string, nameHint string, route *cloudprovider.Route) error

CreateRoute implements Routes.CreateRoute Create the described route

func (*Cloud) CreateSnapshot

func (c *Cloud) CreateSnapshot(snapshotOptions *SnapshotOptions) (snapshotID string, status string, err error)

CreateSnapshot creates an EBS volume snapshot

func (*Cloud) CurrentNodeName

func (c *Cloud) CurrentNodeName(hostname string) (types.NodeName, error)

CurrentNodeName returns the name of the current node

func (*Cloud) DeleteDisk

func (c *Cloud) DeleteDisk(volumeName KubernetesVolumeID) (bool, error)

DeleteDisk implements Volumes.DeleteDisk

func (*Cloud) DeleteRoute

func (c *Cloud) DeleteRoute(clusterName string, route *cloudprovider.Route) error

DeleteRoute implements Routes.DeleteRoute Delete the specified route

func (*Cloud) DeleteSnapshot

func (c *Cloud) DeleteSnapshot(snapshotID string) (bool, error)

DeleteSnapshot deletes an EBS volume snapshot

func (*Cloud) DescribeInstanceGroup

func (c *Cloud) DescribeInstanceGroup(instanceGroupName string) (InstanceGroupInfo, error)

DescribeInstanceGroup queries the cloud provider for information about the specified instance group

func (*Cloud) DescribeSnapshot

func (c *Cloud) DescribeSnapshot(snapshotID string) (status string, isCompleted bool, err error)

DescribeSnapshot returns the status of the snapshot

func (*Cloud) DetachDisk

func (c *Cloud) DetachDisk(diskName KubernetesVolumeID, nodeName types.NodeName) (string, error)

DetachDisk implements Volumes.DetachDisk

func (*Cloud) DiskIsAttached

func (c *Cloud) DiskIsAttached(diskName KubernetesVolumeID, nodeName types.NodeName) (bool, error)

DiskIsAttached implements Volumes.DiskIsAttached

func (*Cloud) DisksAreAttached

func (c *Cloud) DisksAreAttached(nodeDisks map[types.NodeName][]KubernetesVolumeID) (map[types.NodeName]map[KubernetesVolumeID]bool, error)

DisksAreAttached checks whether disks are attached

func (*Cloud) EnsureLoadBalancer

func (c *Cloud) EnsureLoadBalancer(clusterName string, apiService *v1.Service, nodes []*v1.Node) (*v1.LoadBalancerStatus, error)

EnsureLoadBalancer implements LoadBalancer.EnsureLoadBalancer

func (*Cloud) EnsureLoadBalancerDeleted

func (c *Cloud) EnsureLoadBalancerDeleted(clusterName string, service *v1.Service) error

EnsureLoadBalancerDeleted implements LoadBalancer.EnsureLoadBalancerDeleted.

func (*Cloud) ExternalID

func (c *Cloud) ExternalID(nodeName types.NodeName) (string, error)

ExternalID returns the cloud provider ID of the node with the specified nodeName (deprecated).

func (*Cloud) FindSnapshot

func (c *Cloud) FindSnapshot(tags map[string]string) ([]string, []string, error)

FindSnapshot returns the found snapshot

func (*Cloud) GetDiskPath

func (c *Cloud) GetDiskPath(volumeName KubernetesVolumeID) (string, error)

GetDiskPath implements Volumes.GetDiskPath

func (*Cloud) GetLoadBalancer

func (c *Cloud) GetLoadBalancer(clusterName string, service *v1.Service) (*v1.LoadBalancerStatus, bool, error)

GetLoadBalancer is an implementation of LoadBalancer.GetLoadBalancer

func (*Cloud) GetVolumeLabels

func (c *Cloud) GetVolumeLabels(volumeName KubernetesVolumeID) (map[string]string, error)

GetVolumeLabels implements Volumes.GetVolumeLabels

func (*Cloud) GetZone

func (c *Cloud) GetZone() (cloudprovider.Zone, error)

GetZone implements Zones.GetZone

func (*Cloud) InstanceID

func (c *Cloud) InstanceID(nodeName types.NodeName) (string, error)

InstanceID returns the cloud provider ID of the node with the specified nodeName.

func (*Cloud) InstanceType

func (c *Cloud) InstanceType(nodeName types.NodeName) (string, error)

InstanceType returns the type of the node with the specified nodeName.

func (*Cloud) Instances

func (c *Cloud) Instances() (cloudprovider.Instances, bool)

Instances returns an implementation of Instances for Amazon Web Services.

func (*Cloud) ListRoutes

func (c *Cloud) ListRoutes(clusterName string) ([]*cloudprovider.Route, error)

ListRoutes implements Routes.ListRoutes List all routes that match the filter

func (*Cloud) LoadBalancer

func (c *Cloud) LoadBalancer() (cloudprovider.LoadBalancer, bool)

LoadBalancer returns an implementation of LoadBalancer for Amazon Web Services.

func (*Cloud) NodeAddresses

func (c *Cloud) NodeAddresses(name types.NodeName) ([]v1.NodeAddress, error)

NodeAddresses is an implementation of Instances.NodeAddresses.

func (*Cloud) ProviderName

func (c *Cloud) ProviderName() string

ProviderName returns the cloud provider ID.

func (*Cloud) ResizeInstanceGroup

func (c *Cloud) ResizeInstanceGroup(instanceGroupName string, size int) error

ResizeInstanceGroup sets the size to the fixed size

func (*Cloud) Routes

func (c *Cloud) Routes() (cloudprovider.Routes, bool)

Routes returns an implementation of Routes for Amazon Web Services.

func (*Cloud) ScrubDNS

func (c *Cloud) ScrubDNS(nameservers, searches []string) (nsOut, srchOut []string)

ScrubDNS filters DNS settings for pods.

func (*Cloud) UpdateLoadBalancer

func (c *Cloud) UpdateLoadBalancer(clusterName string, service *v1.Service, nodes []*v1.Node) error

UpdateLoadBalancer implements LoadBalancer.UpdateLoadBalancer

func (*Cloud) Zones

func (c *Cloud) Zones() (cloudprovider.Zones, bool)

Zones returns an implementation of Zones for Amazon Web Services.

type CloudConfig

type CloudConfig struct {
	Global struct {
		// TODO: Is there any use for this?  We can get it from the instance metadata service
		// Maybe if we're not running on AWS, e.g. bootstrap; for now it is not very useful
		Zone string

		// The AWS VPC flag enables the possibility to run the master components
		// on a different aws account, on a different cloud provider or on-premise.
		// If the flag is set also the KubernetesClusterTag must be provided
		VPC string
		// SubnetID enables using a specific subnet to use for ELB's
		SubnetID string
		// RouteTableID enables using a specific RouteTable
		RouteTableID string

		// KubernetesClusterTag is the legacy cluster id we'll use to identify our cluster resources
		KubernetesClusterTag string
		// KubernetesClusterTag is the cluster id we'll use to identify our cluster resources
		KubernetesClusterID string

		//The aws provider creates an inbound rule per load balancer on the node security
		//group. However, this can run into the AWS security group rule limit of 50 if
		//many LoadBalancers are created.
		//
		//This flag disables the automatic ingress creation. It requires that the user
		//has setup a rule that allows inbound traffic on kubelet ports from the
		//local VPC subnet (so load balancers can access it). E.g. 10.82.0.0/16 30000-32000.
		DisableSecurityGroupIngress bool

		//During the instantiation of an new AWS cloud provider, the detected region
		//is validated against a known set of regions.
		//
		//In a non-standard, AWS like environment (e.g. Eucalyptus), this check may
		//be undesirable.  Setting this to true will disable the check and provide
		//a warning that the check was skipped.  Please note that this is an
		//experimental feature and work-in-progress for the moment.  If you find
		//yourself in an non-AWS cloud and open an issue, please indicate that in the
		//issue body.
		DisableStrictZoneCheck bool
	}
}

CloudConfig wraps the settings for the AWS cloud provider.

type CrossRequestRetryDelay

type CrossRequestRetryDelay struct {
	// contains filtered or unexported fields
}

CrossRequestRetryDelay inserts delays before AWS calls, when we are observing RequestLimitExceeded errors Note that we share a CrossRequestRetryDelay across multiple AWS requests; this is a process-wide back-off, whereas the aws-sdk-go implements a per-request exponential backoff/retry

func NewCrossRequestRetryDelay

func NewCrossRequestRetryDelay() *CrossRequestRetryDelay

NewCrossRequestRetryDelay creates a new CrossRequestRetryDelay

func (*CrossRequestRetryDelay) AfterRetry

func (c *CrossRequestRetryDelay) AfterRetry(r *request.Request)

AfterRetry is added to the AfterRetry chain; called after any error

func (*CrossRequestRetryDelay) BeforeSign

func (c *CrossRequestRetryDelay) BeforeSign(r *request.Request)

BeforeSign is added to the Sign chain; called before each request

type DeviceAllocator

type DeviceAllocator interface {
	// GetNext returns a free device name or error when there is no free device
	// name. Only the device suffix is returned, e.g. "ba" for "/dev/xvdba".
	// It's up to the called to add appropriate "/dev/sd" or "/dev/xvd" prefix.
	GetNext(existingDevices ExistingDevices) (mountDevice, error)
}

DeviceAllocator finds available device name, taking into account already assigned device names from ExistingDevices map. It tries to find the next device name to the previously assigned one (from previous DeviceAllocator call), so all available device names are used eventually and it minimizes device name reuse. On AWS, we should assign new (not yet used) device names to attached volumes. If we reuse a previously used name, we may get the volume "attaching" forever, see https://aws.amazon.com/premiumsupport/knowledge-center/ebs-stuck-attaching/. All these allocations are in-memory, nothing is written to / read from /dev directory.

func NewDeviceAllocator

func NewDeviceAllocator(lastIndex int) DeviceAllocator

NewDeviceAllocator allocates device names according to scheme ba..bz, ca..cz it moves along the ring and always picks next device until device list is exhausted.

type EC2

type EC2 interface {
	// Query EC2 for instances matching the filter
	DescribeInstances(request *ec2.DescribeInstancesInput) ([]*ec2.Instance, error)

	// Attach a volume to an instance
	AttachVolume(*ec2.AttachVolumeInput) (*ec2.VolumeAttachment, error)
	// Detach a volume from an instance it is attached to
	DetachVolume(request *ec2.DetachVolumeInput) (resp *ec2.VolumeAttachment, err error)
	// Lists volumes
	DescribeVolumes(request *ec2.DescribeVolumesInput) ([]*ec2.Volume, error)
	// Create an EBS volume
	CreateVolume(request *ec2.CreateVolumeInput) (resp *ec2.Volume, err error)
	// Delete an EBS volume
	DeleteVolume(*ec2.DeleteVolumeInput) (*ec2.DeleteVolumeOutput, error)
	// Create an EBS volume snapshot
	CreateSnapshot(*ec2.CreateSnapshotInput) (*ec2.Snapshot, error)
	// Delete an EBS volume snapshot
	DeleteSnapshot(*ec2.DeleteSnapshotInput) (*ec2.DeleteSnapshotOutput, error)
	// Lists snapshots
	DescribeSnapshots(*ec2.DescribeSnapshotsInput) ([]*ec2.Snapshot, error)

	DescribeSecurityGroups(request *ec2.DescribeSecurityGroupsInput) ([]*ec2.SecurityGroup, error)

	CreateSecurityGroup(*ec2.CreateSecurityGroupInput) (*ec2.CreateSecurityGroupOutput, error)
	DeleteSecurityGroup(request *ec2.DeleteSecurityGroupInput) (*ec2.DeleteSecurityGroupOutput, error)

	AuthorizeSecurityGroupIngress(*ec2.AuthorizeSecurityGroupIngressInput) (*ec2.AuthorizeSecurityGroupIngressOutput, error)
	RevokeSecurityGroupIngress(*ec2.RevokeSecurityGroupIngressInput) (*ec2.RevokeSecurityGroupIngressOutput, error)

	DescribeSubnets(*ec2.DescribeSubnetsInput) ([]*ec2.Subnet, error)

	CreateTags(*ec2.CreateTagsInput) (*ec2.CreateTagsOutput, error)

	DescribeRouteTables(request *ec2.DescribeRouteTablesInput) ([]*ec2.RouteTable, error)
	CreateRoute(request *ec2.CreateRouteInput) (*ec2.CreateRouteOutput, error)
	DeleteRoute(request *ec2.DeleteRouteInput) (*ec2.DeleteRouteOutput, error)

	ModifyInstanceAttribute(request *ec2.ModifyInstanceAttributeInput) (*ec2.ModifyInstanceAttributeOutput, error)
}

EC2 is an abstraction over AWS', to allow mocking/other implementations Note that the DescribeX functions return a list, so callers don't need to deal with paging TODO: Should we rename this to AWS (EBS & ELB are not technically part of EC2)

type EC2Metadata

type EC2Metadata interface {
	// Query the EC2 metadata service (used to discover instance-id etc)
	GetMetadata(path string) (string, error)
}

EC2Metadata is an abstraction over the AWS metadata service.

type ELB

type ELB interface {
	CreateLoadBalancer(*elb.CreateLoadBalancerInput) (*elb.CreateLoadBalancerOutput, error)
	DeleteLoadBalancer(*elb.DeleteLoadBalancerInput) (*elb.DeleteLoadBalancerOutput, error)
	DescribeLoadBalancers(*elb.DescribeLoadBalancersInput) (*elb.DescribeLoadBalancersOutput, error)
	RegisterInstancesWithLoadBalancer(*elb.RegisterInstancesWithLoadBalancerInput) (*elb.RegisterInstancesWithLoadBalancerOutput, error)
	DeregisterInstancesFromLoadBalancer(*elb.DeregisterInstancesFromLoadBalancerInput) (*elb.DeregisterInstancesFromLoadBalancerOutput, error)
	CreateLoadBalancerPolicy(*elb.CreateLoadBalancerPolicyInput) (*elb.CreateLoadBalancerPolicyOutput, error)
	SetLoadBalancerPoliciesForBackendServer(*elb.SetLoadBalancerPoliciesForBackendServerInput) (*elb.SetLoadBalancerPoliciesForBackendServerOutput, error)

	DetachLoadBalancerFromSubnets(*elb.DetachLoadBalancerFromSubnetsInput) (*elb.DetachLoadBalancerFromSubnetsOutput, error)
	AttachLoadBalancerToSubnets(*elb.AttachLoadBalancerToSubnetsInput) (*elb.AttachLoadBalancerToSubnetsOutput, error)

	CreateLoadBalancerListeners(*elb.CreateLoadBalancerListenersInput) (*elb.CreateLoadBalancerListenersOutput, error)
	DeleteLoadBalancerListeners(*elb.DeleteLoadBalancerListenersInput) (*elb.DeleteLoadBalancerListenersOutput, error)

	ApplySecurityGroupsToLoadBalancer(*elb.ApplySecurityGroupsToLoadBalancerInput) (*elb.ApplySecurityGroupsToLoadBalancerOutput, error)

	ConfigureHealthCheck(*elb.ConfigureHealthCheckInput) (*elb.ConfigureHealthCheckOutput, error)

	DescribeLoadBalancerAttributes(*elb.DescribeLoadBalancerAttributesInput) (*elb.DescribeLoadBalancerAttributesOutput, error)
	ModifyLoadBalancerAttributes(*elb.ModifyLoadBalancerAttributesInput) (*elb.ModifyLoadBalancerAttributesOutput, error)
}

ELB is a simple pass-through of AWS' ELB client interface, which allows for testing

type ExistingDevices

type ExistingDevices map[mountDevice]awsVolumeID

ExistingDevices is a map of assigned devices. Presence of a key with a device name in the map means that the device is allocated. Value is irrelevant and can be used for anything that DeviceAllocator user wants. Only the relevant part of device name should be in the map, e.g. "ba" for "/dev/xvdba".

type IPPermissionSet

type IPPermissionSet map[string]*ec2.IpPermission

IPPermissionSet is the IP Permission Set

func NewIPPermissionSet

func NewIPPermissionSet(items ...*ec2.IpPermission) IPPermissionSet

NewIPPermissionSet creates a IPPermissionSet

func (IPPermissionSet) Difference

Difference returns a set of objects that are not in s2 For example: s = {a1, a2, a3} s2 = {a1, a2, a4, a5} s.Difference(s2) = {a3} s2.Difference(s) = {a4, a5}

func (IPPermissionSet) Equal

func (s IPPermissionSet) Equal(s2 IPPermissionSet) bool

Equal returns true if and only if s is equal (as a set) to s2. Two sets are equal if their membership is identical. (In practice, this means same elements, order doesn't matter)

func (IPPermissionSet) Insert

func (s IPPermissionSet) Insert(items ...*ec2.IpPermission)

Insert adds items to the set.

func (IPPermissionSet) IsSuperset

func (s IPPermissionSet) IsSuperset(s2 IPPermissionSet) bool

IsSuperset returns true if and only if s is a superset of s2.

func (IPPermissionSet) Len

func (s IPPermissionSet) Len() int

Len returns the size of the set.

func (IPPermissionSet) List

func (s IPPermissionSet) List() []*ec2.IpPermission

List returns the contents as a slice. Order is not defined.

func (IPPermissionSet) Ungroup

func (s IPPermissionSet) Ungroup() IPPermissionSet

Ungroup splits permissions out into individual permissions EC2 will combine permissions with the same port but different SourceRanges together, for example We ungroup them so we can process them

type InstanceGroupInfo

type InstanceGroupInfo interface {
	// The number of instances currently running under control of this group
	CurrentSize() (int, error)
}

InstanceGroupInfo is returned by InstanceGroups.Describe, and exposes information about the group.

func DescribeInstanceGroup

func DescribeInstanceGroup(asg ASG, instanceGroupName string) (InstanceGroupInfo, error)

DescribeInstanceGroup gets info about the specified instancegroup Exported so it can be used by the e2e tests, which don't want to instantiate a full cloudprovider.

type InstanceGroups

type InstanceGroups interface {
	// Set the size to the fixed size
	ResizeInstanceGroup(instanceGroupName string, size int) error
	// Queries the cloud provider for information about the specified instance group
	DescribeInstanceGroup(instanceGroupName string) (InstanceGroupInfo, error)
}

InstanceGroups is an interface for managing cloud-managed instance groups / autoscaling instance groups TODO: Allow other clouds to implement this

type KubernetesVolumeID

type KubernetesVolumeID string

KubernetesVolumeID represents the id for a volume in the kubernetes API; a few forms are recognized:

* aws://<zone>/<awsVolumeId>
* aws:///<awsVolumeId>
* <awsVolumeId>

type ResourceLifecycle

type ResourceLifecycle string

ResourceLifecycle is the value we use when tagging the resource life cycle

type Services

type Services interface {
	Compute(region string) (EC2, error)
	LoadBalancing(region string) (ELB, error)
	Autoscaling(region string) (ASG, error)
	Metadata() (EC2Metadata, error)
}

Services is an abstraction over AWS, to allow mocking/other implementations

type SnapshotOptions

type SnapshotOptions struct {
	VolumeID string
	Tags     *map[string]string
}

SnapshotOptions specifies volume snapshot options.

type VolumeOptions

type VolumeOptions struct {
	CapacityGB       int
	Tags             map[string]string
	PVCName          string
	VolumeType       string
	AvailabilityZone string
	// IOPSPerGB x CapacityGB will give total IOPS of the volume to create.
	// Calculated total IOPS will be capped at MaxTotalIOPS.
	IOPSPerGB int
	Encrypted bool
	// fully qualified resource name to the key to use for encryption.
	// example: arn:aws:kms:us-east-1:012345678910:key/abcd1234-a123-456a-a12b-a123b4cd56ef
	KmsKeyID string
	// an existing EBS snapshotID
	SnapshotID string
}

VolumeOptions specifies capacity and tags for a volume.

type Volumes

type Volumes interface {
	// Attach the disk to the node with the specified NodeName
	// nodeName can be empty to mean "the instance on which we are running"
	// Returns the device (e.g. /dev/xvdf) where we attached the volume
	AttachDisk(diskName KubernetesVolumeID, nodeName types.NodeName, readOnly bool) (string, error)
	// Detach the disk from the node with the specified NodeName
	// nodeName can be empty to mean "the instance on which we are running"
	// Returns the device where the volume was attached
	DetachDisk(diskName KubernetesVolumeID, nodeName types.NodeName) (string, error)

	// Create a volume with the specified options
	CreateDisk(volumeOptions *VolumeOptions) (volumeName KubernetesVolumeID, err error)
	// Delete the specified volume
	// Returns true iff the volume was deleted
	// If the was not found, returns (false, nil)
	DeleteDisk(volumeName KubernetesVolumeID) (bool, error)

	// Get labels to apply to volume on creation
	GetVolumeLabels(volumeName KubernetesVolumeID) (map[string]string, error)

	// Get volume's disk path from volume name
	// return the device path where the volume is attached
	GetDiskPath(volumeName KubernetesVolumeID) (string, error)

	// Check if the volume is already attached to the node with the specified NodeName
	DiskIsAttached(diskName KubernetesVolumeID, nodeName types.NodeName) (bool, error)

	// Check if disks specified in argument map are still attached to their respective nodes.
	DisksAreAttached(map[types.NodeName][]KubernetesVolumeID) (map[types.NodeName]map[KubernetesVolumeID]bool, error)

	// Create an EBS volume snapshot
	CreateSnapshot(snapshotOptions *SnapshotOptions) (snapshotID string, status string, err error)

	// Delete an EBS volume snapshot
	DeleteSnapshot(snapshotID string) (bool, error)

	// Describe an EBS volume snapshot status for create or delete.
	// return status (completed or pending or error), and error
	DescribeSnapshot(snapshotID string) (status string, isCompleted bool, err error)

	// Find snapshot by tags
	FindSnapshot(tags map[string]string) ([]string, []string, error)
}

Volumes is an interface for managing cloud-provisioned volumes TODO: Allow other clouds to implement this

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