config

package
v0.0.0-...-21cfbab Latest Latest
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 Go to latest Published: Apr 10, 2023 License: Apache-2.0, Apache-2.0 Imports: 24 Imported by: 0

Documentation

Overview

The config package provides config inheritance for Felix.

It supports loading config from various sources, parsing and validating the config and merging the config according to the priority of the sources.

Usage

To use it, create a Config object with: 

config.New()

Load some raw config using: 

envConfig := config.LoadConfigFromEnvironment()
fileConfig, err := config.LoadConfigFile()

Then feed it to the config object: 

config.UpdateFrom(envConfig, config.EnvironmentVariable)
config.UpdateFrom(fileConfig, config.ConfigFile)

The UpdateFrom() method returns an error, but, as a convenience, it also stores the error in config.Err.

Config inheritance

Config from higher-priority sources overrides config from lower-priority sources. The priorities, in increasing order of priority, are: 

Default              // Default value of a parameter
DatastoreGlobal      // Cluster-wide config parameters from the datastore.
DatastorePerHost     // Per-host overrides from the datastore.
ConfigFile           // The local config file.
EnvironmentVariable  // Environment variables.

Index

Constants

View Source 
const (
	MinIptablesMarkBits = 2
)

Variables

View Source 
var (
	// RegexpIfaceElemRegexp matches an individual element in the overall interface list;
	// assumes the value represents a regular expression and is marked by '/' at the start
	// and end and cannot have spaces
	RegexpIfaceElemRegexp = regexp.MustCompile(`^\/[^\s]+\/$`)
	// NonRegexpIfaceElemRegexp matches an individual element in the overall interface list;
	// assumes the value is between 1-15 chars long and only be alphanumeric or - or _
	NonRegexpIfaceElemRegexp = regexp.MustCompile(`^[a-zA-Z0-9_-]{1,15}$`)
	IfaceListRegexp          = regexp.MustCompile(`^[a-zA-Z0-9_-]{1,15}(,[a-zA-Z0-9_-]{1,15})*$`)
	AuthorityRegexp          = regexp.MustCompile(`^[^:/]+:\d+$`)
	HostnameRegexp           = regexp.MustCompile(`^[a-zA-Z0-9_.-]+$`)
	StringRegexp             = regexp.MustCompile(`^.*$`)
	IfaceParamRegexp         = regexp.MustCompile(`^[a-zA-Z0-9:._+-]{1,15}$`)
	// Hostname  have to be valid ipv4, ipv6 or strings up to 64 characters.
	HostAddressRegexp = regexp.MustCompile(`^[a-zA-Z0-9:._+-]{1,64}$`)
)
View Source 
var SourcesInDescendingOrder = []Source{InternalOverride, EnvironmentVariable, ConfigFile, DatastorePerHost, DatastoreGlobal}

Functions

func LoadConfigFile 

func LoadConfigFile(filename string) (map[string]string, error)

func LoadConfigFileData 

func LoadConfigFileData(data []byte) (map[string]string, error)

func LoadConfigFromEnvironment 

func LoadConfigFromEnvironment(environ []string) map[string]string

LoadConfigFromEnvironment extracts raw config parameters (identified by case-insensitive prefix "felix_") from the given OS environment variables. An environment entry of "FELIX_FOO=bar" is translated to "foo": "bar".

func SafeParamsEqual 

func SafeParamsEqual(a any, b any) bool

SafeParamsEqual compares two values drawn from the types of our config fields. For the most part it uses reflect.DeepEquals() but some types (such as regexps and IPs) are handled inline to avoid pitfalls.

Types

type BoolParam 

type BoolParam struct {
	Metadata
}

func (*BoolParam) Parse 

func (p *BoolParam) Parse(raw string) (interface{}, error)

type BoolPtrParam 

type BoolPtrParam struct {
	Metadata
}

func (*BoolPtrParam) Parse 

func (p *BoolPtrParam) Parse(raw string) (interface{}, error)

type CIDRListParam 

type CIDRListParam struct {
	Metadata
}

func (*CIDRListParam) Parse 

func (c *CIDRListParam) Parse(raw string) (result interface{}, err error)

type Config 

type Config struct {
	// Configuration parameters.
	UseInternalDataplaneDriver bool          `config:"bool;true"`
	DataplaneDriver            string        `config:"file(must-exist,executable);calico-iptables-plugin;non-zero,die-on-fail,skip-default-validation"`
	DataplaneWatchdogTimeout   time.Duration `config:"seconds;90"`

	// Wireguard configuration
	WireguardEnabled               bool          `config:"bool;false"`
	WireguardEnabledV6             bool          `config:"bool;false"`
	WireguardListeningPort         int           `config:"int;51820"`
	WireguardListeningPortV6       int           `config:"int;51821"`
	WireguardRoutingRulePriority   int           `config:"int;99"`
	WireguardInterfaceName         string        `config:"iface-param;wireguard.cali;non-zero"`
	WireguardInterfaceNameV6       string        `config:"iface-param;wg-v6.cali;non-zero"`
	WireguardMTU                   int           `config:"int;0"`
	WireguardMTUV6                 int           `config:"int;0"`
	WireguardHostEncryptionEnabled bool          `config:"bool;false"`
	WireguardPersistentKeepAlive   time.Duration `config:"seconds;0"`

	BPFEnabled                         bool             `config:"bool;false"`
	BPFDisableUnprivileged             bool             `config:"bool;true"`
	BPFLogLevel                        string           `config:"oneof(off,info,debug);off;non-zero"`
	BPFDataIfacePattern                *regexp.Regexp   `config:"regexp;^((en|wl|ww|sl|ib)[Popsx].*|(eth|wlan|wwan).*|tunl0$|vxlan.calico$|wireguard.cali$|wg-v6.cali$)"`
	BPFL3IfacePattern                  *regexp.Regexp   `config:"regexp;"`
	BPFConnectTimeLoadBalancingEnabled bool             `config:"bool;true"`
	BPFExternalServiceMode             string           `config:"oneof(tunnel,dsr);tunnel;non-zero"`
	BPFDSROptoutCIDRs                  []string         `config:"cidr-list;;"`
	BPFKubeProxyIptablesCleanupEnabled bool             `config:"bool;true"`
	BPFKubeProxyMinSyncPeriod          time.Duration    `config:"seconds;1"`
	BPFKubeProxyEndpointSlicesEnabled  bool             `config:"bool;true"`
	BPFExtToServiceConnmark            int              `config:"int;0"`
	BPFPSNATPorts                      numorstring.Port `config:"portrange;20000:29999"`
	BPFMapSizeNATFrontend              int              `config:"int;65536;non-zero"`
	BPFMapSizeNATBackend               int              `config:"int;262144;non-zero"`
	BPFMapSizeNATAffinity              int              `config:"int;65536;non-zero"`
	BPFMapSizeRoute                    int              `config:"int;262144;non-zero"`
	BPFMapSizeConntrack                int              `config:"int;512000;non-zero"`
	BPFMapSizeIPSets                   int              `config:"int;1048576;non-zero"`
	BPFMapSizeIfState                  int              `config:"int;1000;non-zero"`
	BPFHostConntrackBypass             bool             `config:"bool;true"`
	BPFEnforceRPF                      string           `config:"oneof(Disabled,Strict,Loose);Loose;non-zero"`
	BPFPolicyDebugEnabled              bool             `config:"bool;true"`

	// DebugBPFCgroupV2 controls the cgroup v2 path that we apply the connect-time load balancer to.  Most distros
	// are configured for cgroup v1, which prevents all but the root cgroup v2 from working so this is only useful
	// for development right now.
	DebugBPFCgroupV2 string `config:"string;;local"`
	// DebugBPFMapRepinEnabled can be used to prevent Felix from repinning its BPF maps at startup.  This is useful for
	// testing with multiple Felix instances running on one host.
	DebugBPFMapRepinEnabled bool `config:"bool;false;local"`

	DatastoreType string `config:"oneof(kubernetes,etcdv3);etcdv3;non-zero,die-on-fail,local"`

	FelixHostname string `config:"hostname;;local,non-zero"`

	EtcdAddr      string   `config:"authority;127.0.0.1:2379;local"`
	EtcdScheme    string   `config:"oneof(http,https);http;local"`
	EtcdKeyFile   string   `config:"file(must-exist);;local"`
	EtcdCertFile  string   `config:"file(must-exist);;local"`
	EtcdCaFile    string   `config:"file(must-exist);;local"`
	EtcdEndpoints []string `config:"endpoint-list;;local"`

	TyphaAddr           string        `config:"authority;;local"`
	TyphaK8sServiceName string        `config:"string;;local"`
	TyphaK8sNamespace   string        `config:"string;kube-system;non-zero,local"`
	TyphaReadTimeout    time.Duration `config:"seconds;30;local"`
	TyphaWriteTimeout   time.Duration `config:"seconds;10;local"`

	// Client-side TLS config for Felix's communication with Typha.  If any of these are
	// specified, they _all_ must be - except that either TyphaCN or TyphaURISAN may be left
	// unset.  Felix will then initiate a secure (TLS) connection to Typha.  Typha must present
	// a certificate signed by a CA in TyphaCAFile, and with CN matching TyphaCN or URI SAN
	// matching TyphaURISAN.
	TyphaKeyFile  string `config:"file(must-exist);;local"`
	TyphaCertFile string `config:"file(must-exist);;local"`
	TyphaCAFile   string `config:"file(must-exist);;local"`
	TyphaCN       string `config:"string;;local"`
	TyphaURISAN   string `config:"string;;local"`

	Ipv6Support    bool `config:"bool;true"`
	BpfIpv6Support bool `config:"bool;false"`

	IptablesBackend                    string            `config:"oneof(legacy,nft,auto);auto"`
	RouteRefreshInterval               time.Duration     `config:"seconds;90"`
	InterfaceRefreshInterval           time.Duration     `config:"seconds;90"`
	DeviceRouteSourceAddress           net.IP            `config:"ipv4;"`
	DeviceRouteSourceAddressIPv6       net.IP            `config:"ipv6;"`
	DeviceRouteProtocol                int               `config:"int;3"`
	RemoveExternalRoutes               bool              `config:"bool;true"`
	IptablesRefreshInterval            time.Duration     `config:"seconds;90"`
	IptablesPostWriteCheckIntervalSecs time.Duration     `config:"seconds;1"`
	IptablesLockFilePath               string            `config:"file;/run/xtables.lock"`
	IptablesLockTimeoutSecs            time.Duration     `config:"seconds;0"`
	IptablesLockProbeIntervalMillis    time.Duration     `config:"millis;50"`
	FeatureDetectOverride              map[string]string `config:"keyvaluelist;;"`
	FeatureGates                       map[string]string `config:"keyvaluelist;;"`
	IpsetsRefreshInterval              time.Duration     `config:"seconds;10"`
	MaxIpsetSize                       int               `config:"int;1048576;non-zero"`
	XDPRefreshInterval                 time.Duration     `config:"seconds;90"`

	PolicySyncPathPrefix string `config:"file;;"`

	NetlinkTimeoutSecs time.Duration `config:"seconds;10"`

	MetadataAddr string `config:"hostname;127.0.0.1;die-on-fail"`
	MetadataPort int    `config:"int(0,65535);8775;die-on-fail"`

	OpenstackRegion string `config:"region;;die-on-fail"`

	InterfacePrefix  string           `config:"iface-list;cali;non-zero,die-on-fail"`
	InterfaceExclude []*regexp.Regexp `config:"iface-list-regexp;kube-ipvs0"`

	ChainInsertMode             string `config:"oneof(insert,append);insert;non-zero,die-on-fail"`
	DefaultEndpointToHostAction string `config:"oneof(DROP,RETURN,ACCEPT);DROP;non-zero,die-on-fail"`
	IptablesFilterAllowAction   string `config:"oneof(ACCEPT,RETURN);ACCEPT;non-zero,die-on-fail"`
	IptablesMangleAllowAction   string `config:"oneof(ACCEPT,RETURN);ACCEPT;non-zero,die-on-fail"`
	IptablesFilterDenyAction    string `config:"oneof(DROP,REJECT);DROP;non-zero,die-on-fail"`
	LogPrefix                   string `config:"string;calico-packet"`

	LogFilePath string `config:"file;/var/log/calico/felix.log;die-on-fail"`

	LogSeverityFile   string `config:"oneof(DEBUG,INFO,WARNING,ERROR,FATAL);INFO"`
	LogSeverityScreen string `config:"oneof(DEBUG,INFO,WARNING,ERROR,FATAL);INFO"`
	LogSeveritySys    string `config:"oneof(DEBUG,INFO,WARNING,ERROR,FATAL);INFO"`
	// LogDebugFilenameRegex controls which source code files have their Debug log output included in the logs.
	// Only logs from files with names that match the given regular expression are included.  The filter only applies
	// to Debug level logs.
	LogDebugFilenameRegex *regexp.Regexp `config:"regexp(nil-on-empty);"`

	// Optional: VXLAN encap is now determined by the existing IP pools (Encapsulation struct)
	VXLANEnabled         *bool  `config:"*bool;"`
	VXLANPort            int    `config:"int;4789"`
	VXLANVNI             int    `config:"int;4096"`
	VXLANMTU             int    `config:"int;0"`
	VXLANMTUV6           int    `config:"int;0"`
	IPv4VXLANTunnelAddr  net.IP `config:"ipv4;"`
	IPv6VXLANTunnelAddr  net.IP `config:"ipv6;"`
	VXLANTunnelMACAddr   string `config:"string;"`
	VXLANTunnelMACAddrV6 string `config:"string;"`

	// Optional: IPIP encap is now determined by the existing IP pools (Encapsulation struct)
	IpInIpEnabled    *bool  `config:"*bool;"`
	IpInIpMtu        int    `config:"int;0"`
	IpInIpTunnelAddr net.IP `config:"ipv4;"`

	// Feature enablement.  Can be either "Enabled" or "Disabled".  Note, this governs the
	// programming of NAT mappings derived from Kubernetes pod annotations.  OpenStack floating
	// IPs are always programmed, regardless of this setting.
	FloatingIPs string `config:"oneof(Enabled,Disabled);Disabled"`

	// Knobs provided to explicitly control whether we add rules to drop encap traffic
	// from workloads. We always add them unless explicitly requested not to add them.
	AllowVXLANPacketsFromWorkloads bool `config:"bool;false"`
	AllowIPIPPacketsFromWorkloads  bool `config:"bool;false"`

	AWSSrcDstCheck string `config:"oneof(DoNothing,Enable,Disable);DoNothing;non-zero"`

	ServiceLoopPrevention string `config:"oneof(Drop,Reject,Disabled);Drop"`

	WorkloadSourceSpoofing string `config:"oneof(Disabled,Any);Disabled"`

	ReportingIntervalSecs time.Duration `config:"seconds;30"`
	ReportingTTLSecs      time.Duration `config:"seconds;90"`

	EndpointReportingEnabled   bool          `config:"bool;false"`
	EndpointReportingDelaySecs time.Duration `config:"seconds;1"`

	IptablesMarkMask uint32 `config:"mark-bitmask;0xffff0000;non-zero,die-on-fail"`

	DisableConntrackInvalidCheck bool `config:"bool;false"`

	HealthEnabled          bool                     `config:"bool;false"`
	HealthPort             int                      `config:"int(0,65535);9099"`
	HealthHost             string                   `config:"host-address;localhost"`
	HealthTimeoutOverrides map[string]time.Duration `config:"keydurationlist;;"`

	PrometheusMetricsEnabled          bool   `config:"bool;false"`
	PrometheusMetricsHost             string `config:"host-address;"`
	PrometheusMetricsPort             int    `config:"int(0,65535);9091"`
	PrometheusGoMetricsEnabled        bool   `config:"bool;true"`
	PrometheusProcessMetricsEnabled   bool   `config:"bool;true"`
	PrometheusWireGuardMetricsEnabled bool   `config:"bool;true"`

	FailsafeInboundHostPorts  []ProtoPort `config:"port-list;tcp:22,udp:68,tcp:179,tcp:2379,tcp:2380,tcp:5473,tcp:6443,tcp:6666,tcp:6667;die-on-fail"`
	FailsafeOutboundHostPorts []ProtoPort `config:"port-list;udp:53,udp:67,tcp:179,tcp:2379,tcp:2380,tcp:5473,tcp:6443,tcp:6666,tcp:6667;die-on-fail"`

	KubeNodePortRanges []numorstring.Port `config:"portrange-list;30000:32767"`
	NATPortRange       numorstring.Port   `config:"portrange;"`
	NATOutgoingAddress net.IP             `config:"ipv4;"`

	UsageReportingEnabled          bool          `config:"bool;true"`
	UsageReportingInitialDelaySecs time.Duration `config:"seconds;300"`
	UsageReportingIntervalSecs     time.Duration `config:"seconds;86400"`
	ClusterGUID                    string        `config:"string;baddecaf"`
	ClusterType                    string        `config:"string;"`
	CalicoVersion                  string        `config:"string;"`

	ExternalNodesCIDRList []string `config:"cidr-list;;die-on-fail"`

	DebugMemoryProfilePath          string        `config:"file;;"`
	DebugCPUProfilePath             string        `config:"file;/tmp/felix-cpu-<timestamp>.pprof;"`
	DebugDisableLogDropping         bool          `config:"bool;false"`
	DebugSimulateCalcGraphHangAfter time.Duration `config:"seconds;0"`
	DebugSimulateDataplaneHangAfter time.Duration `config:"seconds;0"`
	DebugPanicAfter                 time.Duration `config:"seconds;0"`
	DebugSimulateDataRace           bool          `config:"bool;false"`

	// Configure where Felix gets its routing information.
	// - workloadIPs: use workload endpoints to construct routes.
	// - calicoIPAM: use IPAM data to construct routes.
	RouteSource string `config:"oneof(WorkloadIPs,CalicoIPAM);CalicoIPAM"`

	// RouteTableRange is deprecated in favor of RouteTableRanges,
	RouteTableRange   idalloc.IndexRange   `config:"route-table-range;;die-on-fail"`
	RouteTableRanges  []idalloc.IndexRange `config:"route-table-ranges;;die-on-fail"`
	RouteSyncDisabled bool                 `config:"bool;false"`

	IptablesNATOutgoingInterfaceFilter string `config:"iface-param;"`

	SidecarAccelerationEnabled bool `config:"bool;false"`
	XDPEnabled                 bool `config:"bool;true"`
	GenericXDPEnabled          bool `config:"bool;false"`

	Variant string `config:"string;Calico"`

	// Configures MTU auto-detection.
	MTUIfacePattern *regexp.Regexp `config:"regexp;^((en|wl|ww|sl|ib)[Pcopsx].*|(eth|wlan|wwan).*)"`

	// Encapsulation information calculated from IP Pools and FelixConfiguration (VXLANEnabled and IpInIpEnabled)
	Encapsulation Encapsulation

	// Err holds the most recent error from a config update.
	Err error
	// contains filtered or unexported fields
}

Config contains the best, parsed config values loaded from the various sources. We use tags to control the parsing and validation.

func New 

func New() *Config

func (*Config) Copy 

func (config *Config) Copy() *Config

Copy makes a copy of the object. Internal state is deep copied but config parameters are only shallow copied. This saves work since updates to the copy will trigger the config params to be recalculated.

func (*Config) DatastoreConfig 

func (config *Config) DatastoreConfig() apiconfig.CalicoAPIConfig

func (*Config) InterfacePrefixes 

func (config *Config) InterfacePrefixes() []string

func (*Config) IsLeader 

func (config *Config) IsLeader() bool

func (*Config) KubernetesProvider 

func (config *Config) KubernetesProvider() Provider

KubernetesProvider attempts to parse the kubernetes provider, e.g. AKS out of the ClusterType. The ClusterType is a string which contains a set of comma-separated values in no particular order.

func (*Config) OpenstackActive 

func (config *Config) OpenstackActive() bool

func (*Config) OverrideParam 

func (config *Config) OverrideParam(name, value string) (bool, error)

OverrideParam installs a maximum priority parameter override for the given parameter. This is useful for disabling features that are found to be unsupported, for example. By using an extra priority class, the override will persist even if the host/global config is updated.

func (*Config) RawValues 

func (config *Config) RawValues() map[string]string

func (*Config) RouteTableIndices 

func (config *Config) RouteTableIndices() []idalloc.IndexRange

RouteTableIndices compares provided args for the deprecated RoutTableRange arg and the newer RouteTableRanges arg, giving precedence to the newer arg if it's explicitly-set

func (*Config) SetLoadClientConfigFromEnvironmentFunction 

func (config *Config) SetLoadClientConfigFromEnvironmentFunction(fnc func() (*apiconfig.CalicoAPIConfig, error))

func (*Config) SetUseNodeResourceUpdates 

func (config *Config) SetUseNodeResourceUpdates(b bool)

func (*Config) ToConfigUpdate 

func (config *Config) ToConfigUpdate() *proto.ConfigUpdate

func (*Config) UpdateFrom 

func (config *Config) UpdateFrom(rawData map[string]string, source Source) (changed bool, err error)

UpdateFrom parses and merges the rawData from one particular source into this config object. If there is a config value already loaded from a higher-priority source, then the new value will be ignored (after validation).

func (*Config) UpdateFromConfigUpdate 

func (config *Config) UpdateFromConfigUpdate(configUpdate *proto.ConfigUpdate) (changedFields set.Set[string], err error)

func (*Config) UseNodeResourceUpdates 

func (config *Config) UseNodeResourceUpdates() bool

func (*Config) Validate 

func (config *Config) Validate() (err error)

Validate() performs cross-field validation.

type Encapsulation 

type Encapsulation struct {
	IPIPEnabled    bool
	VXLANEnabled   bool
	VXLANEnabledV6 bool
}

type EndpointListParam 

type EndpointListParam struct {
	Metadata
}

func (*EndpointListParam) Parse 

func (p *EndpointListParam) Parse(raw string) (result interface{}, err error)

type FileParam 

type FileParam struct {
	Metadata
	MustExist  bool
	Executable bool
}

func (*FileParam) Parse 

func (p *FileParam) Parse(raw string) (interface{}, error)

type FloatParam 

type FloatParam struct {
	Metadata
}

func (*FloatParam) Parse 

func (p *FloatParam) Parse(raw string) (result interface{}, err error)

type Int32Param 

type Int32Param struct {
	Metadata
}

func (*Int32Param) Parse 

func (p *Int32Param) Parse(raw string) (interface{}, error)

type IntParam 

type IntParam struct {
	Metadata
	Min int
	Max int
}

func (*IntParam) Parse 

func (p *IntParam) Parse(raw string) (interface{}, error)

type Ipv4Param 

type Ipv4Param struct {
	Metadata
}

func (*Ipv4Param) Parse 

func (p *Ipv4Param) Parse(raw string) (result interface{}, err error)

type Ipv6Param 

type Ipv6Param struct {
	Metadata
}

func (*Ipv6Param) Parse 

func (p *Ipv6Param) Parse(raw string) (result interface{}, err error)

type KeyDurationListParam 

type KeyDurationListParam struct {
	Metadata
}

func (*KeyDurationListParam) Parse 

func (p *KeyDurationListParam) Parse(raw string) (result interface{}, err error)

type KeyValueListParam 

type KeyValueListParam struct {
	Metadata
}

func (*KeyValueListParam) Parse 

func (p *KeyValueListParam) Parse(raw string) (result interface{}, err error)

type MarkBitmaskParam 

type MarkBitmaskParam struct {
	Metadata
}

func (*MarkBitmaskParam) Parse 

func (p *MarkBitmaskParam) Parse(raw string) (interface{}, error)

type Metadata 

type Metadata struct {
	Name              string
	DefaultString     string
	Default           interface{}
	ZeroValue         interface{}
	NonZero           bool
	DieOnParseFailure bool
	Local             bool
}

func (*Metadata) GetMetadata 

func (m *Metadata) GetMetadata() *Metadata

type MillisParam 

type MillisParam struct {
	Metadata
}

func (*MillisParam) Parse 

func (p *MillisParam) Parse(raw string) (result interface{}, err error)

type OneofListParam 

type OneofListParam struct {
	Metadata
	// contains filtered or unexported fields
}

func (*OneofListParam) Parse 

func (p *OneofListParam) Parse(raw string) (result interface{}, err error)

type PortListParam 

type PortListParam struct {
	Metadata
}

func (*PortListParam) Parse 

func (p *PortListParam) Parse(raw string) (interface{}, error)

type PortRangeListParam 

type PortRangeListParam struct {
	Metadata
}

func (*PortRangeListParam) Parse 

func (p *PortRangeListParam) Parse(raw string) (interface{}, error)

type PortRangeParam 

type PortRangeParam struct {
	Metadata
}

func (*PortRangeParam) Parse 

func (p *PortRangeParam) Parse(raw string) (interface{}, error)

type ProtoPort 

type ProtoPort struct {
	Net      string
	Protocol string
	Port     uint16
}

type Provider 

type Provider uint8

Provider represents a particular provider or flavor of Kubernetes. 

const (
	ProviderNone Provider = iota
	ProviderEKS
	ProviderGKE
	ProviderAKS
	ProviderOpenShift
	ProviderDockerEE
)

func (Provider) String 

func (p Provider) String() string

type RegexpParam 

type RegexpParam struct {
	Metadata
	Regexp *regexp.Regexp
	Msg    string
}

func (*RegexpParam) Parse 

func (p *RegexpParam) Parse(raw string) (result interface{}, err error)

type RegexpPatternListParam 

type RegexpPatternListParam struct {
	Metadata
	RegexpElemRegexp    *regexp.Regexp
	NonRegexpElemRegexp *regexp.Regexp
	Delimiter           string
	Msg                 string
}

RegexpPatternListParam differs from RegexpParam (above) in that it validates string values that are (themselves) regular expressions.

func (*RegexpPatternListParam) Parse 

func (p *RegexpPatternListParam) Parse(raw string) (interface{}, error)

Parse validates whether the given raw string contains a list of valid values. Validation is dictated by two regexp patterns: one for valid regular expression values, another for non-regular expressions.

type RegexpPatternParam 

type RegexpPatternParam struct {
	Metadata
	Flags []string
}

RegexpPatternParam differs from RegexpParam (above) in that it validates string values that are (themselves) regular expressions.

func (*RegexpPatternParam) Parse 

func (p *RegexpPatternParam) Parse(raw string) (interface{}, error)

Parse validates whether the given raw string contains a valid regexp pattern.

type RegionParam 

type RegionParam struct {
	Metadata
}

func (*RegionParam) Parse 

func (r *RegionParam) Parse(raw string) (result interface{}, err error)

type RouteTableRangeParam 

type RouteTableRangeParam struct {
	Metadata
}

func (*RouteTableRangeParam) Parse 

func (p *RouteTableRangeParam) Parse(raw string) (result interface{}, err error)

type RouteTableRangesParam 

type RouteTableRangesParam struct {
	Metadata
}

func (*RouteTableRangesParam) Parse 

func (p *RouteTableRangesParam) Parse(raw string) (result interface{}, err error)

type SecondsParam 

type SecondsParam struct {
	Metadata
}

func (*SecondsParam) Parse 

func (p *SecondsParam) Parse(raw string) (result interface{}, err error)

type Source 

type Source uint8

Source of a config value. Values from higher-numbered sources override those from lower-numbered sources. Note: some parameters (such as those needed to connect to the datastore) can only be set from a local source. 

const (
	Default Source = iota
	DatastoreGlobal
	DatastorePerHost
	ConfigFile
	EnvironmentVariable
	InternalOverride
)

func (Source) Local 

func (source Source) Local() bool

func (Source) String 

func (source Source) String() string

Source Files

View all Source files

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