ec2

package
v2.5.0 Latest Latest
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 Go to latest Published: Apr 26, 2024 License: Apache-2.0 Imports: 36 Imported by: 0

Documentation

Overview

Package ec2 provides a way to interact with the AWS EC2 API.

Index

Constants

View Source 
const (
	// DefaultArchitectureTag is the default architecture used when the architcture can't be determined from instance type.
	DefaultArchitectureTag = Amd64ArchitectureTag

	// Amd64ArchitectureTag is the reference AWS uses for amd64 architecture images.
	Amd64ArchitectureTag = "x86_64"

	// Arm64ArchitectureTag is the reference AWS uses for arm64 architecture images.
	Arm64ArchitectureTag = "arm64"

	// DefaultMachineAMIOwnerID is a heptio/VMware owned account. Please see:
	// https://github.com/kubernetes-sigs/cluster-api-provider-aws/issues/487
	DefaultMachineAMIOwnerID = "258751437250"

	// DefaultAmiNameFormat is defined in the build/ directory of this project.
	// The pattern is:
	// 1. the string value `capa-ami-`
	// 2. the baseOS of the AMI, for example: ubuntu-18.04, centos-7, amazon-2
	// 3. the kubernetes version as defined by the packages produced by kubernetes/release with or without v as a prefix, for example: 1.13.0, 1.12.5-mybuild.1, v1.17.3
	// 4. a `-` followed by any additional characters.
	DefaultAmiNameFormat = "capa-ami-{{.BaseOS}}-?{{.K8sVersion}}-*"
)
View Source 
const (
	// TagsLastAppliedAnnotation is the key for the AWSMachinePool object annotation
	// which tracks the tags that the AWSMachinePool actuator is responsible
	// for. These are the tags that have been handled by the
	// AdditionalTags in the AWSMachinePool Provider Config.
	// See https://kubernetes.io/docs/concepts/overview/working-with-objects/annotations/
	// for annotation formatting rules.
	TagsLastAppliedAnnotation = "sigs.k8s.io/cluster-api-provider-aws-last-applied-tags"
)

Variables

View Source 
var (
	// ErrInstanceNotFoundByID defines an error for when the instance with the provided provider ID is missing.
	ErrInstanceNotFoundByID = errors.New("failed to find instance by id")

	// ErrDescribeInstance defines an error for when AWS SDK returns error when describing instances.
	ErrDescribeInstance = errors.New("failed to describe instance by id")
)

Functions

func DefaultAMILookup 

func DefaultAMILookup(ec2Client ec2iface.EC2API, ownerID, baseOS, kubernetesVersion, architecture, amiNameFormat string) (*ec2.Image, error)

DefaultAMILookup will do a default AMI lookup.

func GenerateAmiName 

func GenerateAmiName(amiNameFormat, baseOS, kubernetesVersion string) (string, error)

GenerateAmiName will generate an AMI name.

func GetLatestImage 

func GetLatestImage(imgs []*ec2.Image) (*ec2.Image, error)

GetLatestImage assumes imgs is not empty. Responsibility of the caller to check.

func MachinePoolAnnotationJSON 

func MachinePoolAnnotationJSON(lts scope.LaunchTemplateScope, annotation string) (map[string]interface{}, error)

MachinePoolAnnotationJSON returns the annotation's json value as a map.

func UpdateMachinePoolAnnotationJSON 

func UpdateMachinePoolAnnotationJSON(lts scope.LaunchTemplateScope, annotation string, content map[string]interface{}) error

UpdateMachinePoolAnnotationJSON updates the annotation with the given content.

Types

type AMILookup 

type AMILookup struct {
	BaseOS     string
	K8sVersion string
}

AMILookup contains the parameters used to template AMI names used for lookup.

type Service 

type Service struct {
	EC2Client ec2iface.EC2API

	// SSMClient is used to look up the official EKS AMI ID
	SSMClient ssmiface.SSMAPI
	// contains filtered or unexported fields
}

Service holds a collection of interfaces. The interfaces are broken down like this to group functions together. One alternative is to have a large list of functions from the ec2 client.

func NewService 

func NewService(clusterScope scope.EC2Scope) *Service

NewService returns a new service given the ec2 api client.

func (*Service) CreateInstance 

func (s *Service) CreateInstance(scope *scope.MachineScope, userData []byte, userDataFormat string) (*infrav1.Instance, error)

CreateInstance runs an ec2 instance.

func (*Service) CreateLaunchTemplate 

func (s *Service) CreateLaunchTemplate(scope scope.LaunchTemplateScope, imageID *string, userDataSecretKey apimachinerytypes.NamespacedName, userData []byte) (string, error)

CreateLaunchTemplate generates a launch template to be used with the autoscaling group.

func (*Service) CreateLaunchTemplateVersion 

func (s *Service) CreateLaunchTemplateVersion(id string, scope scope.LaunchTemplateScope, imageID *string, userDataSecretKey apimachinerytypes.NamespacedName, userData []byte) error

CreateLaunchTemplateVersion will create a launch template.

func (*Service) DeleteBastion 

func (s *Service) DeleteBastion() error

DeleteBastion deletes the Bastion instance.

func (*Service) DeleteLaunchTemplate 

func (s *Service) DeleteLaunchTemplate(id string) error

DeleteLaunchTemplate delete a launch template.

func (*Service) DetachSecurityGroupsFromNetworkInterface 

func (s *Service) DetachSecurityGroupsFromNetworkInterface(groups []string, interfaceID string) error

DetachSecurityGroupsFromNetworkInterface looks up an ENI by interfaceID and detaches a list of Security Groups from that ENI.

func (*Service) DiscoverLaunchTemplateAMI 

func (s *Service) DiscoverLaunchTemplateAMI(scope scope.LaunchTemplateScope) (*string, error)

DiscoverLaunchTemplateAMI will discover the AMI launch template.

func (*Service) GetAdditionalSecurityGroupsIDs 

func (s *Service) GetAdditionalSecurityGroupsIDs(securityGroups []infrav1.AWSResourceReference) ([]string, error)

GetAdditionalSecurityGroupsIDs returns the security group IDs for the additional security groups.

func (*Service) GetCoreNodeSecurityGroups 

func (s *Service) GetCoreNodeSecurityGroups(scope scope.LaunchTemplateScope) ([]string, error)

GetCoreNodeSecurityGroups looks up the security group IDs managed by this actuator They are considered "core" to its proper functioning.

func (*Service) GetCoreSecurityGroups 

func (s *Service) GetCoreSecurityGroups(scope *scope.MachineScope) ([]string, error)

GetCoreSecurityGroups looks up the security group IDs managed by this actuator They are considered "core" to its proper functioning.

func (*Service) GetDHCPOptionSetDomainName added in v2.4.2 

func (s *Service) GetDHCPOptionSetDomainName(ec2client ec2iface.EC2API, vpcID *string) *string

GetDHCPOptionSetDomainName returns the domain DNS name for the VPC from the DHCP Options.

func (*Service) GetInstanceSecurityGroups 

func (s *Service) GetInstanceSecurityGroups(instanceID string) (map[string][]string, error)

GetInstanceSecurityGroups returns a map from ENI id to the security groups applied to that ENI While some security group operations take place at the "instance" level, these are in fact an API convenience for manipulating the first ("primary") ENI's properties.

func (*Service) GetLaunchTemplate 

func (s *Service) GetLaunchTemplate(launchTemplateName string) (*expinfrav1.AWSLaunchTemplate, string, *apimachinerytypes.NamespacedName, error)

GetLaunchTemplate returns the existing LaunchTemplate or nothing if it doesn't exist. For now by name until we need the input to be something different.

func (*Service) GetLaunchTemplateID 

func (s *Service) GetLaunchTemplateID(launchTemplateName string) (string, error)

GetLaunchTemplateID returns the existing LaunchTemplateId or empty string if it doesn't exist.

func (*Service) GetLaunchTemplateLatestVersion 

func (s *Service) GetLaunchTemplateLatestVersion(id string) (string, error)

GetLaunchTemplateLatestVersion returns the latest version of a launch template.

func (*Service) GetRunningInstanceByTags 

func (s *Service) GetRunningInstanceByTags(scope *scope.MachineScope) (*infrav1.Instance, error)

GetRunningInstanceByTags returns the existing instance or nothing if it doesn't exist.

func (*Service) InstanceIfExists 

func (s *Service) InstanceIfExists(id *string) (*infrav1.Instance, error)

InstanceIfExists returns the existing instance by id and errors if it cannot find the instance(ErrInstanceNotFoundByID) or API call fails (ErrDescribeInstance). Returns empty instance with nil error, only when providerID is nil.

func (*Service) LaunchTemplateNeedsUpdate 

func (s *Service) LaunchTemplateNeedsUpdate(scope scope.LaunchTemplateScope, incoming *expinfrav1.AWSLaunchTemplate, existing *expinfrav1.AWSLaunchTemplate) (bool, error)

LaunchTemplateNeedsUpdate checks if a new launch template version is needed.

FIXME(dlipovetsky): This check should account for changed userdata, but does not yet do so. Although userdata is stored in an EC2 Launch Template, it is not a field of AWSLaunchTemplate.

func (*Service) ModifyInstanceMetadataOptions added in v2.1.0 

func (s *Service) ModifyInstanceMetadataOptions(instanceID string, options *infrav1.InstanceMetadataOptions) error

ModifyInstanceMetadataOptions modifies the metadata options of the given EC2 instance.

func (*Service) PruneLaunchTemplateVersions 

func (s *Service) PruneLaunchTemplateVersions(id string) error

PruneLaunchTemplateVersions deletes one old launch template version. It does not delete the "latest" version, because that version may still be in use. It does not delete the "default" version, because that version cannot be deleted. It does not assume that versions are sequential. Versions may be deleted out of band.

func (*Service) ReconcileBastion 

func (s *Service) ReconcileBastion() error

ReconcileBastion ensures a bastion is created for the cluster.

func (*Service) ReconcileLaunchTemplate 

func (s *Service) ReconcileLaunchTemplate(
	scope scope.LaunchTemplateScope,
	ec2svc services.EC2Interface,
	canUpdateLaunchTemplate func() (bool, error),
	runPostLaunchTemplateUpdateOperation func() error,
) error

ReconcileLaunchTemplate reconciles a launch template and triggers instance refresh conditionally, depending on changes.

func (*Service) ReconcileTags 

func (s *Service) ReconcileTags(scope scope.LaunchTemplateScope, resourceServicesToUpdate []scope.ResourceServiceToUpdate) error

ReconcileTags reconciles the tags for the AWSMachinePool instances.

func (*Service) SDKToInstance 

func (s *Service) SDKToInstance(v *ec2.Instance) (*infrav1.Instance, error)

SDKToInstance converts an AWS EC2 SDK instance to the CAPA instance type. SDKToInstance populates all instance fields except for rootVolumeSize, because EC2.DescribeInstances does not return the size of storage devices. An additional call to EC2 is required to get this value.

func (*Service) SDKToLaunchTemplate 

func (s *Service) SDKToLaunchTemplate(d *ec2.LaunchTemplateVersion) (*expinfrav1.AWSLaunchTemplate, string, *apimachinerytypes.NamespacedName, error)

SDKToLaunchTemplate converts an AWS EC2 SDK instance to the CAPA instance type.

func (*Service) TerminateInstance 

func (s *Service) TerminateInstance(instanceID string) error

TerminateInstance terminates an EC2 instance. Returns nil on success, error in all other cases.

func (*Service) TerminateInstanceAndWait 

func (s *Service) TerminateInstanceAndWait(instanceID string) error

TerminateInstanceAndWait terminates and waits for an EC2 instance to terminate.

func (*Service) UpdateInstanceSecurityGroups 

func (s *Service) UpdateInstanceSecurityGroups(instanceID string, ids []string) error

UpdateInstanceSecurityGroups modifies the security groups of the given EC2 instance.

func (*Service) UpdateResourceTags 

func (s *Service) UpdateResourceTags(resourceID *string, create, remove map[string]string) error

UpdateResourceTags updates the tags for an instance. This will be called if there is anything to create (update) or delete. We may not always have to perform each action, so we check what we're receiving to avoid calling AWS if we don't need to.

Source Files

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