types

package
v1.15.3 Latest Latest
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 Go to latest Published: Mar 26, 2024 License: Apache-2.0 Imports: 11 Imported by: 2

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Index

Constants

View Source 
const (
	// OptClusterName is the name of the OptClusterName option
	OptClusterName = "cluster-name"

	// OptClusterID is the name of the OptClusterID option
	OptClusterID = "cluster-id"

	// OptMaxConnectedClusters is the name of the OptMaxConnectedClusters option
	OptMaxConnectedClusters = "max-connected-clusters"
)
View Source 
const (
	// ClusterIDMin is the minimum value of the cluster ID
	ClusterIDMin    = 0
	ClusterIDExt511 = 511
)
View Source 
const AddrClusterLen = 20

Variables

View Source 
var ClusterIDMax uint32 = defaults.MaxConnectedClusters

ClusterIDMax is the maximum value of the cluster ID

View Source 
var DefaultClusterInfo = ClusterInfo{
	ID:                   0,
	Name:                 defaults.ClusterName,
	MaxConnectedClusters: defaults.MaxConnectedClusters,
}

DefaultClusterInfo represents the default ClusterInfo values.

Functions

func AnnotateIPCacheKeyWithClusterID 

func AnnotateIPCacheKeyWithClusterID(key string, clusterID uint32) string

This function is solely exists for annotating IPCache's key string with ClusterID. IPCache's key string is IP address or Prefix string (10.0.0.1 and 10.0.0.0/32 are different entry). This function assumes given string is one of those format and just put @<ClusterID> suffix and there's no format check for performance reason. User must make sure the input is a valid IP or Prefix string.

We should eventually remove this function once we finish refactoring IPCache and stop using string as a key. At that point, we should consider using PrefixCluster type for IPCache's key.

func ValidateClusterID 

func ValidateClusterID(clusterID uint32) error

ValidateClusterID ensures that the given clusterID is within the configured range of the ClusterMesh.

Types

type AddrCluster 

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

AddrCluster is a type that holds a pair of IP and ClusterID. We should use this type as much as possible when we implement IP + Cluster addressing. We should avoid managing IP and ClusterID separately. Otherwise, it is very hard for code readers to see where we are using cluster-aware addressing.

func AddrClusterFrom 

func AddrClusterFrom(addr netip.Addr, clusterID uint32) AddrCluster

AddrClusterFrom creates AddrCluster from netip.Addr and ClusterID

func AddrClusterFromIP 

func AddrClusterFromIP(ip net.IP) (AddrCluster, bool)

AddrClusterFromIP parses the given net.IP using ip.AddrFromIP and returns AddrCluster with ClusterID = 0.

func MustAddrClusterFromIP 

func MustAddrClusterFromIP(ip net.IP) AddrCluster

func MustParseAddrCluster 

func MustParseAddrCluster(s string) AddrCluster

MustParseAddrCluster calls ParseAddr(s) and panics on error. It is intended for use in tests with hard-coded strings.

func ParseAddrCluster 

func ParseAddrCluster(s string) (AddrCluster, error)

ParseAddrCluster parses s as an IP + ClusterID and returns AddrCluster. The string s can be a bare IP string (any IP address format allowed in netip.ParseAddr()) or IP string + @ + ClusterID with decimal. Bare IP string is considered as IP string + @ + ClusterID = 0.

func (AddrCluster) Addr 

func (ac AddrCluster) Addr() netip.Addr

Addr returns IP address part of AddrCluster as netip.Addr. This function exists for keeping backward compatibility between the existing components which are not aware of the cluster-aware addressing. Calling this function against the AddrCluster which has non-zero clusterID will lose the ClusterID information. It should be used with an extra care.

func (AddrCluster) As20 

func (ac AddrCluster) As20() (ac20 [20]byte)

As20 returns the AddrCluster in its 20-byte representation which consists of 16-byte IP address part from netip.Addr.As16 and 4-byte ClusterID part.

func (AddrCluster) AsNetIP 

func (ac AddrCluster) AsNetIP() net.IP

AsNetIP returns the IP address part of AddCluster as a net.IP type. This function exists for keeping backward compatibility between the existing components which are not aware of the cluster-aware addressing. Calling this function against the AddrCluster which has non-zero clusterID will lose the ClusterID information. It should be used with an extra care.

func (AddrCluster) AsPrefixCluster 

func (ac AddrCluster) AsPrefixCluster() PrefixCluster

func (AddrCluster) ClusterID 

func (ac AddrCluster) ClusterID() uint32

ClusterID returns ClusterID part of AddrCluster as uint32. We should avoid using this function as much as possible and treat IP address and ClusterID together.

func (*AddrCluster) DeepCopy 

func (in *AddrCluster) DeepCopy() *AddrCluster

DeepCopy returns a new copy of AddrCluster

func (*AddrCluster) DeepCopyInto 

func (in *AddrCluster) DeepCopyInto(out *AddrCluster)

DeepCopyInto copies in to out

func (*AddrCluster) DeepEqual 

func (ac0 *AddrCluster) DeepEqual(ac1 *AddrCluster) bool

This is an alias of Equal which only exists for satisfying deepequal-gen

func (AddrCluster) Equal 

func (ac0 AddrCluster) Equal(ac1 AddrCluster) bool

Equal returns true when given AddrCluster has a same IP address and ClusterID

func (AddrCluster) Is4 

func (ac AddrCluster) Is4() bool

Is4 reports whether IP address part of AddrCluster is an IPv4 address.

func (AddrCluster) Is6 

func (ac AddrCluster) Is6() bool

Is6 reports whether IP address part of AddrCluster is an IPv6 address.

func (AddrCluster) IsUnspecified 

func (ac AddrCluster) IsUnspecified() bool

IsUnspecified reports whether IP address part of the AddrCluster is an unspecified address, either the IPv4 address "0.0.0.0" or the IPv6 address "::".

func (AddrCluster) Less 

func (ac0 AddrCluster) Less(ac1 AddrCluster) bool

Less compares ac0 and ac1 and returns true if ac0 is lesser than ac1

func (AddrCluster) String 

func (ac AddrCluster) String() string

String returns the string representation of the AddrCluster. If AddrCluster.clusterID = 0, it returns bare IP address string. Otherwise, it returns IP string + "@" + ClusterID (e.g. 10.0.0.1@1)

type CiliumClusterConfig 

type CiliumClusterConfig struct {
	ID uint32 `json:"id,omitempty"`

	Capabilities CiliumClusterConfigCapabilities `json:"capabilities,omitempty"`
}

type CiliumClusterConfigCapabilities 

type CiliumClusterConfigCapabilities struct {
	// Supports per-prefix "synced" canaries
	SyncedCanaries bool `json:"syncedCanaries,omitempty"`

	// The information concerning the given cluster is cached from an external
	// kvstore (for instance, by kvstoremesh). This implies that keys are stored
	// under the dedicated "cilium/cache" prefix, and all are cluster-scoped.
	Cached bool `json:"cached,omitempty"`

	// The maximum number of clusters the given cluster can support in a ClusterMesh.
	MaxConnectedClusters uint32 `json:"maxConnectedClusters,omitempty"`
}

type ClusterInfo added in v1.15.0 

type ClusterInfo struct {
	ID                   uint32 `mapstructure:"cluster-id"`
	Name                 string `mapstructure:"cluster-name"`
	MaxConnectedClusters uint32 `mapstructure:"max-connected-clusters"`
}

ClusterInfo groups together the ClusterID and the ClusterName

func (ClusterInfo) ExtendedClusterMeshEnabled added in v1.15.0 

func (c ClusterInfo) ExtendedClusterMeshEnabled() bool

ExtendedClusterMeshEnabled returns true if MaxConnectedClusters value has been set to a value larger than the default 255.

func (ClusterInfo) Flags added in v1.15.0 

func (def ClusterInfo) Flags(flags *pflag.FlagSet)

Flags implements the cell.Flagger interface, to register the given flags.

func (ClusterInfo) InitClusterIDMax added in v1.15.0 

func (c ClusterInfo) InitClusterIDMax() error

InitClusterIDMax validates and sets the ClusterIDMax package level variable.

func (ClusterInfo) Validate added in v1.15.0 

func (c ClusterInfo) Validate() error

Validate validates that the ClusterID is in the valid range (including ClusterID == 0), and that the ClusterName is different from the default value if the ClusterID != 0.

func (ClusterInfo) ValidateRemoteConfig added in v1.15.0 

func (c ClusterInfo) ValidateRemoteConfig(configRequired bool, config *CiliumClusterConfig) error

ValidateRemoteConfig validates the remote CiliumClusterConfig to ensure compatibility with this cluster's configuration. When configRequired is false, a missing configuration or one with ID=0 is allowed for backward compatibility, otherwise it is flagged as an error.

func (ClusterInfo) ValidateStrict added in v1.15.0 

func (c ClusterInfo) ValidateStrict() error

ValidateStrict validates that the ClusterID is in the valid range, but not 0, and that the ClusterName is different from the default value.

type PrefixCluster 

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

PrefixCluster is a type that holds a pair of prefix and ClusterID. We should use this type as much as possible when we implement prefix + Cluster addressing. We should avoid managing prefix and ClusterID separately. Otherwise, it is very hard for code readers to see where we are using cluster-aware addressing.

func MustParsePrefixCluster 

func MustParsePrefixCluster(s string) PrefixCluster

MustParsePrefixCluster calls ParsePrefixCluster(s) and panics on error. It is intended for use in tests with hard-coded strings.

func ParsePrefixCluster 

func ParsePrefixCluster(s string) (PrefixCluster, error)

ParsePrefixCluster parses s as an Prefix + ClusterID and returns PrefixCluster. The string s can be a bare IP prefix string (any prefix format allowed in netip.ParsePrefix()) or prefix string + @ + ClusterID with decimal. Bare prefix string is considered as prefix string + @ + ClusterID = 0.

func PrefixClusterFrom 

func PrefixClusterFrom(addr netip.Addr, bits int, opts ...PrefixClusterOpts) PrefixCluster

func PrefixClusterFromCIDR 

func PrefixClusterFromCIDR(c *cidr.CIDR, opts ...PrefixClusterOpts) PrefixCluster

func (PrefixCluster) AddrCluster 

func (pc PrefixCluster) AddrCluster() AddrCluster

func (PrefixCluster) AsIPNet 

func (pc PrefixCluster) AsIPNet() net.IPNet

AsIPNet returns the IP prefix part of PrefixCluster as a net.IPNet type. This function exists for keeping backward compatibility between the existing components which are not aware of the cluster-aware addressing. Calling this function against the PrefixCluster which has non-zero clusterID will lose the ClusterID information. It should be used with an extra care.

func (PrefixCluster) AsPrefix added in v1.15.0 

func (pc PrefixCluster) AsPrefix() netip.Prefix

AsPrefix returns the IP prefix part of PrefixCluster as a netip.Prefix type. This function exists for keeping backward compatibility between the existing components which are not aware of the cluster-aware addressing. Calling this function against the PrefixCluster which has non-zero clusterID will lose the ClusterID information. It should be used with an extra care.

func (PrefixCluster) ClusterID 

func (pc PrefixCluster) ClusterID() uint32

func (PrefixCluster) Equal 

func (pc0 PrefixCluster) Equal(pc1 PrefixCluster) bool

func (PrefixCluster) IsSingleIP 

func (pc PrefixCluster) IsSingleIP() bool

func (PrefixCluster) IsValid 

func (pc PrefixCluster) IsValid() bool

func (PrefixCluster) String 

func (pc PrefixCluster) String() string

type PrefixClusterOpts 

type PrefixClusterOpts func(*PrefixCluster)

func WithClusterID 

func WithClusterID(id uint32) PrefixClusterOpts

type ValidationMode 

type ValidationMode bool

ValidationMode defines if a missing CiliumClusterConfig should be allowed for backward compatibility, or it should be flagged as an error. 

const (
	BackwardCompatible ValidationMode = false
	Strict             ValidationMode = true
)

Source Files

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