intdataplane

package
v3.8.2+incompatible Latest Latest
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 Go to latest Published: Aug 9, 2019 License: Apache-2.0 Imports: 29 Imported by: 34

Documentation

Index

Constants

View Source 
const (

	// Interface name used by kube-proxy to bind service ips.
	KubeIPVSInterface = "kube-ipvs0"
)

Variables

This section is empty.

Functions

func NewSockmapState 

func NewSockmapState() (*sockmapState, error)

func NewXDPState 

func NewXDPState(allowGenericXDP bool) (*xdpState, error)

func NewXDPStateWithBPFLibrary 

func NewXDPStateWithBPFLibrary(library bpf.BPFDataplane, allowGenericXDP bool) *xdpState

Types

type AddInterfaceFunc 

type AddInterfaceFunc func(ifaceName string, hostEPID proto.HostEndpointID)

type AddInterfaceFuncs 

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

func (*AddInterfaceFuncs) Append 

func (fs *AddInterfaceFuncs) Append(f AddInterfaceFunc) *CbID

func (*AddInterfaceFuncs) Invoke 

func (fs *AddInterfaceFuncs) Invoke(ifaceName string, hostEPID proto.HostEndpointID)

type AddMembersIPSetFunc 

type AddMembersIPSetFunc func(setID string, members set.Set)

type AddMembersIPSetFuncs 

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

func (*AddMembersIPSetFuncs) Append 

func (fs *AddMembersIPSetFuncs) Append(f AddMembersIPSetFunc) *CbID

func (*AddMembersIPSetFuncs) Invoke 

func (fs *AddMembersIPSetFuncs) Invoke(setID string, members set.Set)

type CbID 

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

type Config 

type Config struct {
	Hostname string

	IPv6Enabled          bool
	RuleRendererOverride rules.RuleRenderer
	IPIPMTU              int
	VXLANMTU             int
	IgnoreLooseRPF       bool

	MaxIPSetSize int

	IptablesBackend                string
	IPSetsRefreshInterval          time.Duration
	RouteRefreshInterval           time.Duration
	IptablesRefreshInterval        time.Duration
	IptablesPostWriteCheckInterval time.Duration
	IptablesInsertMode             string
	IptablesLockFilePath           string
	IptablesLockTimeout            time.Duration
	IptablesLockProbeInterval      time.Duration
	XDPRefreshInterval             time.Duration

	NetlinkTimeout time.Duration

	RulesConfig rules.Config

	IfaceMonitorConfig ifacemonitor.Config

	StatusReportingInterval time.Duration

	ConfigChangedRestartCallback func()

	PostInSyncCallback func()
	HealthAggregator   *health.HealthAggregator

	DebugSimulateDataplaneHangAfter time.Duration

	ExternalNodesCidrs []string

	XDPEnabled      bool
	XDPAllowGeneric bool

	SidecarAccelerationEnabled bool

	LookPathOverride func(file string) (string, error)
}

type EndpointStatusUpdateCallback 

type EndpointStatusUpdateCallback func(ipVersion uint8, id interface{}, status string)

type IfaceFlags 

type IfaceFlags uint8

type InternalDataplane 

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

InternalDataplane implements an in-process Felix dataplane driver based on iptables and ipsets. It communicates with the datastore-facing part of Felix via the Send/RecvMessage methods, which operate on the protobuf-defined API objects.

Architecture

The internal dataplane driver is organised around a main event loop, which handles update events from the datastore and dataplane.

Each pass around the main loop has two phases. In the first phase, updates are fanned out to "manager" objects, which calculate the changes that are needed and pass them to the dataplane programming layer. In the second phase, the dataplane layer applies the updates in a consistent sequence. The second phase is skipped until the datastore is in sync; this ensures that the first update to the dataplane applies a consistent snapshot.

Having the dataplane layer batch updates has several advantages. It is much more efficient to batch updates, since each call to iptables/ipsets has a high fixed cost. In addition, it allows for different managers to make updates without having to coordinate on their sequencing.

Requirements on the API

The internal dataplane does not do consistency checks on the incoming data (as the old Python-based driver used to do). It expects to be told about dependent resources before they are needed and for their lifetime to exceed that of the resources that depend on them. For example, it is important the the datastore layer send an IP set create event before it sends a rule that references that IP set.

func NewIntDataplaneDriver 

func NewIntDataplaneDriver(config Config) *InternalDataplane

func (*InternalDataplane) RecvMessage 

func (d *InternalDataplane) RecvMessage() (interface{}, error)

func (*InternalDataplane) RegisterManager 

func (d *InternalDataplane) RegisterManager(mgr Manager)

func (*InternalDataplane) SendMessage 

func (d *InternalDataplane) SendMessage(msg interface{}) error

func (*InternalDataplane) Start 

func (d *InternalDataplane) Start()

type Manager 

type Manager interface {
	// OnUpdate is called for each protobuf message from the datastore.  May either directly
	// send updates to the IPSets and iptables.Table objects (which will queue the updates
	// until the main loop instructs them to act) or (for efficiency) may wait until
	// a call to CompleteDeferredWork() to flush updates to the dataplane.
	OnUpdate(protoBufMsg interface{})
	// Called before the main loop flushes updates to the dataplane to allow for batched
	// work to be completed.
	CompleteDeferredWork() error
}

type RemoveHostEndpointFunc 

type RemoveHostEndpointFunc func(hostEPID proto.HostEndpointID)

type RemoveHostEndpointFuncs 

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

func (*RemoveHostEndpointFuncs) Append 

func (fs *RemoveHostEndpointFuncs) Append(f RemoveHostEndpointFunc) *CbID

func (*RemoveHostEndpointFuncs) Invoke 

func (fs *RemoveHostEndpointFuncs) Invoke(hostEPID proto.HostEndpointID)

type RemoveIPSetFunc 

type RemoveIPSetFunc func(setID string)

type RemoveIPSetFuncs 

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

func (*RemoveIPSetFuncs) Append 

func (fs *RemoveIPSetFuncs) Append(f RemoveIPSetFunc) *CbID

func (*RemoveIPSetFuncs) Invoke 

func (fs *RemoveIPSetFuncs) Invoke(setID string)

type RemoveInterfaceFunc 

type RemoveInterfaceFunc func(ifaceName string)

type RemoveInterfaceFuncs 

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

func (*RemoveInterfaceFuncs) Append 

func (fs *RemoveInterfaceFuncs) Append(f RemoveInterfaceFunc) *CbID

func (*RemoveInterfaceFuncs) Invoke 

func (fs *RemoveInterfaceFuncs) Invoke(ifaceName string)

type RemoveMembersIPSetFunc 

type RemoveMembersIPSetFunc func(setID string, members set.Set)

type RemoveMembersIPSetFuncs 

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

func (*RemoveMembersIPSetFuncs) Append 

func (fs *RemoveMembersIPSetFuncs) Append(f RemoveMembersIPSetFunc) *CbID

func (*RemoveMembersIPSetFuncs) Invoke 

func (fs *RemoveMembersIPSetFuncs) Invoke(setID string, members set.Set)

type RemovePolicyDataFunc 

type RemovePolicyDataFunc func(policyID proto.PolicyID)

type RemovePolicyDataFuncs 

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

func (*RemovePolicyDataFuncs) Append 

func (fs *RemovePolicyDataFuncs) Append(f RemovePolicyDataFunc) *CbID

func (*RemovePolicyDataFuncs) Invoke 

func (fs *RemovePolicyDataFuncs) Invoke(policyID proto.PolicyID)

type RemoveWorkloadEndpointFunc 

type RemoveWorkloadEndpointFunc func(old *proto.WorkloadEndpoint)

type RemoveWorkloadEndpointFuncs 

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

func (*RemoveWorkloadEndpointFuncs) Append 

func (fs *RemoveWorkloadEndpointFuncs) Append(f RemoveWorkloadEndpointFunc) *CbID

func (*RemoveWorkloadEndpointFuncs) Invoke 

func (fs *RemoveWorkloadEndpointFuncs) Invoke(old *proto.WorkloadEndpoint)

type ReplaceIPSetFunc 

type ReplaceIPSetFunc func(setID string, members set.Set)

type ReplaceIPSetFuncs 

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

func (*ReplaceIPSetFuncs) Append 

func (fs *ReplaceIPSetFuncs) Append(f ReplaceIPSetFunc) *CbID

func (*ReplaceIPSetFuncs) Invoke 

func (fs *ReplaceIPSetFuncs) Invoke(setID string, members set.Set)

type UpdateHostEndpointFunc 

type UpdateHostEndpointFunc func(hostEPID proto.HostEndpointID)

type UpdateHostEndpointFuncs 

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

func (*UpdateHostEndpointFuncs) Append 

func (fs *UpdateHostEndpointFuncs) Append(f UpdateHostEndpointFunc) *CbID

func (*UpdateHostEndpointFuncs) Invoke 

func (fs *UpdateHostEndpointFuncs) Invoke(hostEPID proto.HostEndpointID)

type UpdateInterfaceFunc 

type UpdateInterfaceFunc func(ifaceName string, newHostEPID proto.HostEndpointID)

type UpdateInterfaceFuncs 

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

func (*UpdateInterfaceFuncs) Append 

func (fs *UpdateInterfaceFuncs) Append(f UpdateInterfaceFunc) *CbID

func (*UpdateInterfaceFuncs) Invoke 

func (fs *UpdateInterfaceFuncs) Invoke(ifaceName string, newHostEPID proto.HostEndpointID)

type UpdatePolicyDataFunc 

type UpdatePolicyDataFunc func(policyID proto.PolicyID, policy *proto.Policy)

type UpdatePolicyDataFuncs 

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

func (*UpdatePolicyDataFuncs) Append 

func (fs *UpdatePolicyDataFuncs) Append(f UpdatePolicyDataFunc) *CbID

func (*UpdatePolicyDataFuncs) Invoke 

func (fs *UpdatePolicyDataFuncs) Invoke(policyID proto.PolicyID, policy *proto.Policy)

type UpdateWorkloadEndpointFunc 

type UpdateWorkloadEndpointFunc func(old, new *proto.WorkloadEndpoint)

type UpdateWorkloadEndpointFuncs 

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

func (*UpdateWorkloadEndpointFuncs) Append 

func (fs *UpdateWorkloadEndpointFuncs) Append(f UpdateWorkloadEndpointFunc) *CbID

func (*UpdateWorkloadEndpointFuncs) Invoke 

func (fs *UpdateWorkloadEndpointFuncs) Invoke(old, new *proto.WorkloadEndpoint)

Source Files

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