import "github.com/cilium/cilium/pkg/service"
const.go id.go id_local.go logfields.go service.go
const ( // FirstFreeServiceID is the first ID for which the services should be assigned. FirstFreeServiceID = uint32(1) // MaxSetOfServiceID is maximum number of set of service IDs that can be stored // in the kvstore or the local ID allocator. MaxSetOfServiceID = uint32(0xFFFF) // FirstFreeBackendID is the first ID for which the backend should be assigned. // BPF datapath assumes that backend_id cannot be 0. FirstFreeBackendID = uint32(1) // MaxSetOfBackendID is maximum number of set of backendIDs IDs that can be // stored in the local ID allocator. MaxSetOfBackendID = uint32(0xFFFF) )
func AcquireBackendID(l3n4Addr loadbalancer.L3n4Addr) (loadbalancer.BackendID, error)
AcquireBackendID acquires a new local ID for the given backend.
func AcquireID(l3n4Addr loadbalancer.L3n4Addr, baseID uint32) (*loadbalancer.L3n4AddrID, error)
AcquireID acquires a service ID
func DeleteBackendID(id loadbalancer.BackendID)
DeleteBackendID releases the given backend ID. TODO(brb) maybe provide l3n4Addr as an arg for the extra safety.
DeleteID deletes the L3n4AddrID belonging to the given id from the kvstore.
func GetID(id uint32) (*loadbalancer.L3n4AddrID, error)
GetID returns the L3n4AddrID that belongs to the given id.
func LookupBackendID(l3n4Addr loadbalancer.L3n4Addr) (loadbalancer.BackendID, error)
LookupBackendID looks up already allocated backend ID for the given backend addr. If such cannot be found, returns an error.
func RestoreBackendID(l3n4Addr loadbalancer.L3n4Addr, id loadbalancer.BackendID) error
RestoreBackendID tries to restore the given local ID for the given backend.
If ID cannot be restored (ID already taken), returns an error.
func RestoreID(l3n4Addr loadbalancer.L3n4Addr, baseID uint32) (*loadbalancer.L3n4AddrID, error)
RestoreID restores previously used service ID
type IDAllocator struct { // Protects entitiesID, entities, nextID and maxID lock.RWMutex // contains filtered or unexported fields }
IDAllocator contains an internal state of the ID allocator.
func NewIDAllocator(nextID uint32, maxID uint32) *IDAllocator
NewIDAllocator creates a new ID allocator instance.
type LBMap interface { UpsertService(*lbmap.UpsertServiceParams) error UpsertMaglevLookupTable(uint16, map[string]uint16, bool) error IsMaglevLookupTableRecreated(bool) bool DeleteService(lb.L3n4AddrID, int, bool) error AddBackend(uint16, net.IP, uint16, bool) error DeleteBackendByID(uint16, bool) error AddAffinityMatch(uint16, uint16) error DeleteAffinityMatch(uint16, uint16) error UpdateSourceRanges(uint16, []*cidr.CIDR, []*cidr.CIDR, bool) error DumpServiceMaps() ([]*lb.SVC, []error) DumpBackendMaps() ([]*lb.Backend, error) DumpAffinityMatches() (lbmap.BackendIDByServiceIDSet, error) DumpSourceRanges(bool) (lbmap.SourceRangeSetByServiceID, error) }
LBMap is the interface describing methods for manipulating service maps.
Service is a service handler. Its main responsibility is to reflect service-related changes into BPF maps used by datapath BPF programs. The changes can be triggered either by k8s_watcher or directly by API calls to the /services endpoint.
NewService creates a new instance of the service handler.
DeleteService removes the given service.
DeleteServiceByID removes a service identified by the given ID.
GetDeepCopyServiceByID returns a deep-copy of a service identified with the given ID.
If a service cannot be found, returns false.
GetDeepCopyServices returns a deep-copy of all installed services.
GetServiceNameByAddr returns namespace and name of the service with a given L3n4Addr. The third return value is set to true if and only if the service is found in the map.
InitMaps opens or creates BPF maps used by services.
If restore is set to false, entries of the maps are removed.
RestoreServices restores services from BPF maps.
The method should be called once before establishing a connectivity to kube-apiserver.
SyncWithK8sFinished removes services which we haven't heard about during a sync period of cilium-agent's k8s service cache.
The removal is based on an assumption that during the sync period UpsertService() is going to be called for each alive service.
UpsertService inserts or updates the given service.
The first return value is true if the service hasn't existed before.
Path | Synopsis |
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healthserver | |
store |
Package service imports 19 packages (graph) and is imported by 6 packages. Updated 2021-01-27. Refresh now. Tools for package owners.