endpointmanager

Documentation

Overview

Package endpointmanager manages the list of all local endpoints

Index

• Variables
• func IsErrInvalidPrefix(err error) bool
• func IsErrUnsupportedID(err error) bool
• type EndpointManager
  • func NewEndpointManager(epSynchronizer EndpointResourceSynchronizer) *EndpointManager
  • func (mgr *EndpointManager) AddEndpoint(owner regeneration.Owner, ep *endpoint.Endpoint, reason string) (err error)
  • func (mgr *EndpointManager) AllocateID(currID uint16) (uint16, error)
  • func (mgr *EndpointManager) CallbackForEndpointsAtPolicyRev(ctx context.Context, rev uint64, done func(time.Time)) error
  • func (mgr *EndpointManager) EndpointExists(id uint16) bool
  • func (mgr *EndpointManager) GetEndpoints() []*endpoint.Endpoint
  • func (mgr *EndpointManager) GetPolicyEndpoints() map[policy.Endpoint]struct{}
  • func (mgr *EndpointManager) HasGlobalCT() bool
  • func (mgr *EndpointManager) InitMetrics()
  • func (mgr *EndpointManager) Lookup(id string) (*endpoint.Endpoint, error)
  • func (mgr *EndpointManager) LookupCiliumID(id uint16) *endpoint.Endpoint
  • func (mgr *EndpointManager) LookupContainerID(id string) *endpoint.Endpoint
  • func (mgr *EndpointManager) LookupIP(ip net.IP) (ep *endpoint.Endpoint)
  • func (mgr *EndpointManager) LookupIPv4(ipv4 string) *endpoint.Endpoint
  • func (mgr *EndpointManager) LookupIPv6(ipv6 string) *endpoint.Endpoint
  • func (mgr *EndpointManager) LookupPodName(name string) *endpoint.Endpoint
  • func (mgr *EndpointManager) RegenerateAllEndpoints(regenMetadata *regeneration.ExternalRegenerationMetadata) *sync.WaitGroup
  • func (mgr *EndpointManager) ReleaseID(ep *endpoint.Endpoint) error
  • func (mgr *EndpointManager) RemoveAll()
  • func (mgr *EndpointManager) RemoveID(currID uint16)
  • func (mgr *EndpointManager) RemoveReferences(mappings map[endpointid.PrefixType]string)
  • func (mgr *EndpointManager) UpdateIDReference(ep *endpoint.Endpoint)
  • func (mgr *EndpointManager) UpdatePolicyMaps(ctx context.Context) *sync.WaitGroup
  • func (mgr *EndpointManager) UpdateReferences(mappings map[endpointid.PrefixType]string, ep *endpoint.Endpoint)
  • func (mgr *EndpointManager) WaitEndpointRemoved(ep *endpoint.Endpoint)
  • func (mgr *EndpointManager) WaitForEndpointsAtPolicyRev(ctx context.Context, rev uint64) error
• type EndpointResourceSynchronizer
• type ErrInvalidPrefix
  • func (e ErrInvalidPrefix) Error() string

Variables

var (
	// ErrUnsupportedID represents an error of unsupported IP address format.
	ErrUnsupportedID = errors.New("unsupported IP address format")
)

Functions

func IsErrInvalidPrefix

func IsErrInvalidPrefix(err error) bool

IsErrInvalidPrefix returns true if the given error is the type of ErrInvalidPrefix.

func IsErrUnsupportedID

func IsErrUnsupportedID(err error) bool

IsErrUnsupportedID returns true if the given error is the type of ErrUnsupportedID.

Types

type EndpointManager

type EndpointManager struct {

	// EndpointSynchronizer updates external resources (e.g., Kubernetes) with
	// up-to-date information about endpoints managed by the endpoint manager.
	EndpointResourceSynchronizer
	// contains filtered or unexported fields
}

EndpointManager is a structure designed for containing state about the collection of locally running endpoints.

func NewEndpointManager

func NewEndpointManager(epSynchronizer EndpointResourceSynchronizer) *EndpointManager

NewEndpointManager creates a new EndpointManager.

func (*EndpointManager) AddEndpoint

func (mgr *EndpointManager) AddEndpoint(owner regeneration.Owner, ep *endpoint.Endpoint, reason string) (err error)

AddEndpoint takes the prepared endpoint object and starts managing it.

func (*EndpointManager) AllocateID

func (mgr *EndpointManager) AllocateID(currID uint16) (uint16, error)

AllocateID checks if the ID can be reused. If it cannot, returns an error. If an ID of 0 is provided, a new ID is allocated. If a new ID cannot be allocated, returns an error.

func (*EndpointManager) CallbackForEndpointsAtPolicyRev

func (mgr *EndpointManager) CallbackForEndpointsAtPolicyRev(ctx context.Context, rev uint64, done func(time.Time)) error

CallbackForEndpointsAtPolicyRev registers a callback on all endpoints that exist when invoked. It is similar to WaitForEndpointsAtPolicyRevision but each endpoint that reaches the desired revision calls 'done' independently. The provided callback should not block and generally be lightweight.

func (*EndpointManager) EndpointExists

func (mgr *EndpointManager) EndpointExists(id uint16) bool

EndpointExists returns whether the endpoint with id exists.

func (*EndpointManager) GetEndpoints

func (mgr *EndpointManager) GetEndpoints() []*endpoint.Endpoint

GetEndpoints returns a slice of all endpoints present in endpoint manager.

func (*EndpointManager) GetPolicyEndpoints

func (mgr *EndpointManager) GetPolicyEndpoints() map[policy.Endpoint]struct{}

GetPolicyEndpoints returns a map of all endpoints present in endpoint manager as policy.Endpoint interface set for the map key.

func (*EndpointManager) HasGlobalCT

func (mgr *EndpointManager) HasGlobalCT() bool

HasGlobalCT returns true if the endpoints have a global CT, false otherwise.

func (*EndpointManager) InitMetrics

func (mgr *EndpointManager) InitMetrics()

InitMetrics hooks the EndpointManager into the metrics subsystem. This can only be done once, globally, otherwise the metrics library will panic.

func (*EndpointManager) Lookup

func (mgr *EndpointManager) Lookup(id string) (*endpoint.Endpoint, error)

Lookup looks up the endpoint by prefix id

func (*EndpointManager) LookupCiliumID

func (mgr *EndpointManager) LookupCiliumID(id uint16) *endpoint.Endpoint

LookupCiliumID looks up endpoint by endpoint ID

func (*EndpointManager) LookupContainerID

func (mgr *EndpointManager) LookupContainerID(id string) *endpoint.Endpoint

LookupContainerID looks up endpoint by Docker ID

func (*EndpointManager) LookupIP

func (mgr *EndpointManager) LookupIP(ip net.IP) (ep *endpoint.Endpoint)

LookupIP looks up endpoint by IP address

func (*EndpointManager) LookupIPv4

func (mgr *EndpointManager) LookupIPv4(ipv4 string) *endpoint.Endpoint

LookupIPv4 looks up endpoint by IPv4 address

func (*EndpointManager) LookupIPv6

func (mgr *EndpointManager) LookupIPv6(ipv6 string) *endpoint.Endpoint

LookupIPv6 looks up endpoint by IPv6 address

func (*EndpointManager) LookupPodName

func (mgr *EndpointManager) LookupPodName(name string) *endpoint.Endpoint

LookupPodName looks up endpoint by namespace + pod name

func (*EndpointManager) RegenerateAllEndpoints

func (mgr *EndpointManager) RegenerateAllEndpoints(regenMetadata *regeneration.ExternalRegenerationMetadata) *sync.WaitGroup

RegenerateAllEndpoints calls a setState for each endpoint and regenerates if state transaction is valid. During this process, the endpoint list is locked and cannot be modified. Returns a waiting group that can be used to know when all the endpoints are regenerated.

func (*EndpointManager) ReleaseID

func (mgr *EndpointManager) ReleaseID(ep *endpoint.Endpoint) error

ReleaseID releases the ID of the specified endpoint from the EndpointManager. Returns an error if the ID cannot be released.

func (*EndpointManager) RemoveAll

func (mgr *EndpointManager) RemoveAll()

RemoveAll removes all endpoints from the global maps.

func (*EndpointManager) RemoveID

func (mgr *EndpointManager) RemoveID(currID uint16)

RemoveID removes the id from the endpoints map in the EndpointManager.

func (*EndpointManager) RemoveReferences

func (mgr *EndpointManager) RemoveReferences(mappings map[endpointid.PrefixType]string)

RemoveReferences removes the mappings from the endpointmanager.

func (*EndpointManager) UpdateIDReference

func (mgr *EndpointManager) UpdateIDReference(ep *endpoint.Endpoint)

UpdateIDReference updates the endpoints map in the EndpointManager for the given Endpoint.

func (*EndpointManager) UpdatePolicyMaps

func (mgr *EndpointManager) UpdatePolicyMaps(ctx context.Context) *sync.WaitGroup

UpdatePolicyMaps returns a WaitGroup which is signaled upon once all endpoints have had their PolicyMaps updated against the Endpoint's desired policy state.

func (*EndpointManager) UpdateReferences

func (mgr *EndpointManager) UpdateReferences(mappings map[endpointid.PrefixType]string, ep *endpoint.Endpoint)

UpdateReferences updates maps the contents of mappings to the specified endpoint.

func (*EndpointManager) WaitEndpointRemoved

func (mgr *EndpointManager) WaitEndpointRemoved(ep *endpoint.Endpoint)

WaitEndpointRemoved waits until all operations associated with Remove of the endpoint have been completed. Note: only used for unit tests

func (*EndpointManager) WaitForEndpointsAtPolicyRev

func (mgr *EndpointManager) WaitForEndpointsAtPolicyRev(ctx context.Context, rev uint64) error

WaitForEndpointsAtPolicyRev waits for all endpoints which existed at the time this function is called to be at a given policy revision. New endpoints appearing while waiting are ignored.

type EndpointResourceSynchronizer

type EndpointResourceSynchronizer interface {
	RunK8sCiliumEndpointSync(ep *endpoint.Endpoint, conf endpoint.EndpointStatusConfiguration)
}

EndpointResourceSynchronizer is an interface which synchronizes CiliumEndpoint resources with Kubernetes.

type ErrInvalidPrefix

type ErrInvalidPrefix struct {
	// InvalidPrefix contains the invalid prefix.
	InvalidPrefix string
}

ErrInvalidPrefix represents the error of an invalid prefix.

func (ErrInvalidPrefix) Error

func (e ErrInvalidPrefix) Error() string

Error returns the string representation of the ErrInvalidPrefix.