common

package
v0.0.0-...-0c4b5fb Latest Latest
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 Go to latest Published: Apr 23, 2024 License: Apache-2.0 Imports: 48 Imported by: 15

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Index

Constants

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const (
	AutoPlatformName  = "auto"
	KubePlatformName  = "kube"
	LocalPlatformName = "local"
)
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const (
	ReferencePrefix         = "$ref:"
	ReferenceToEnvVarPrefix = "NUCLIO_B64_"
	SecretContentKey        = "content"
)
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const (
	HTTPPrefix      = "http://"
	HTTPSPrefix     = "https://"
	LocalFilePrefix = "file://"
)
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const DefaultIngressHostTemplate = "@nuclio.fromDefault"
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const FunctionConfigFileName = "function.yaml"
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const KubernetesDomainLevelMaxLength = 63

KubernetesDomainLevelMaxLength DNS domain level limitation is 63 chars https://en.wikipedia.org/wiki/Subdomain#Overview

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const NuclioLabelKeyApp = "nuclio.io/app"
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const NuclioLabelKeyClass = "nuclio.io/class"
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const NuclioLabelKeyComponent = "nuclio.io/component"
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const NuclioLabelKeyFunctionCronJobPod = "nuclio.io/function-cron-job-pod"
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const NuclioLabelKeyFunctionCronTriggerName = "nuclio.io/function-cron-trigger-name"
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const NuclioLabelKeyFunctionVersion = "nuclio.io/function-version"
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const NuclioResourceLabelKeyApiGatewayName = "nuclio.io/apigateway-name"
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const NuclioResourceLabelKeyFunctionName = "nuclio.io/function-name"
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const NuclioResourceLabelKeyProjectName = "nuclio.io/project-name"
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const NuclioResourceLabelKeyVolumeName = "nuclio.io/volume-name"
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const RestoreConfigFromSecretEnvVar = "NUCLIO_RESTORE_FUNCTION_CONFIG_FROM_SECRET"

Variables

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var LettersAndNumbers = []rune("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890")
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var SmallLettersAndNumbers = []rune("abcdefghijklmnopqrstuvwxyz1234567890")

Functions

func AnyPositiveInSliceInt64 

func AnyPositiveInSliceInt64(numbers []int64) bool

func ApplyRedactorChange 

func ApplyRedactorChange(loggerInstance logger.Logger, callback func(*nucliozap.Redactor))

func ByteSliceToString 

func ByteSliceToString(b []byte) string

func CatchAndLogPanicWithOptions 

func CatchAndLogPanicWithOptions(ctx context.Context,
	loggerInstance logger.Logger,
	actionName string,
	options *CatchAndLogPanicOptions) error

func CompareTwoStrings 

func CompareTwoStrings(stringOne, stringTwo string) float32

CompareTwoStrings uses Sørensen–Dice coefficient to check similarity

func CompileImageName 

func CompileImageName(registryURL string, imageName string) string

func CompileListFunctionPodsLabelSelector 

func CompileListFunctionPodsLabelSelector(functionName string) string

func CompileStalePodsFieldSelector 

func CompileStalePodsFieldSelector() string

CompileStalePodsFieldSelector creates a field selector(string) for stale pods

func DownloadFile 

func DownloadFile(url string, out *os.File, headers http.Header) error

func EnsureDirExists 

func EnsureDirExists(ctx context.Context, loggerInstance logger.Logger, dir string) error

EnsureDirExists checks if the directory exists, creates it if it doesn't

func EnvInSlice 

func EnvInSlice(env v1.EnvVar, slice []v1.EnvVar) bool

func ErrorFromRecoveredError 

func ErrorFromRecoveredError(recoveredError interface{}) error

func FileExists 

func FileExists(path string) bool

FileExists returns true if the file @ path exists

func FilterInvalidLabels 

func FilterInvalidLabels(labels map[string]string) map[string]string

FilterInvalidLabels filters out invalid kubernetes labels from a map of labels

func FixEscapeChars 

func FixEscapeChars(s string) string

func GenerateRandomString 

func GenerateRandomString(length int, letters []rune) string

func GenerateStringMatchVerifier 

func GenerateStringMatchVerifier(str string) func(string) bool

GenerateStringMatchVerifier generates a function that returns whether a given string matches the specified string

func GetAttributeRecursivelyFromMapStringInterface 

func GetAttributeRecursivelyFromMapStringInterface(mapStringInterface map[string]interface{}, attributes []string) map[string]interface{}

GetAttributeRecursivelyFromMapStringInterface iterates over the attributes slice and recursively searches the map, returning the last attribute in the slice

func GetClientConfig 

func GetClientConfig(kubeconfigPath string) (*rest.Config, error)

func GetDurationOrInfinite 

func GetDurationOrInfinite(timeout *time.Duration) time.Duration

func GetEnvOrDefaultBool 

func GetEnvOrDefaultBool(key string, defaultValue bool) bool

func GetEnvOrDefaultInt 

func GetEnvOrDefaultInt(key string, defaultValue int) int

func GetEnvOrDefaultString 

func GetEnvOrDefaultString(key string, defaultValue string) string

func GetKubeConfigClientCmdByKubeconfigPath 

func GetKubeConfigClientCmdByKubeconfigPath(kubeconfigPath string) (*clientcmdapi.Config, error)

func GetKubeconfigPath 

func GetKubeconfigPath(kubeconfigPath string) string

func GetLoggersFromInstance 

func GetLoggersFromInstance(loggerInstance logger.Logger) []logger.Logger

func GetPathFromLocalFileURL 

func GetPathFromLocalFileURL(s string) string

GetPathFromLocalFileURL extracts absolute path to file from local file URL example: "file://path/to/file" -> "/path/to/file"

func GetRedactorInstance 

func GetRedactorInstance(output io.Writer) *nucliozap.Redactor

func GetRuntimeNameAndVersion 

func GetRuntimeNameAndVersion(runtime string) (string, string)

GetRuntimeNameAndVersion return runtime name and version. e.g. go:1.8 -> go, 1.8

func GetSourceDir 

func GetSourceDir() string

func GetStringToStringMapOrEmpty 

func GetStringToStringMapOrEmpty(m map[string]string) map[string]string

GetStringToStringMapOrEmpty returns string to string map if it's not nil. otherwise, return an empty one

func GetZipFileContents 

func GetZipFileContents(zf *zip.File) (string, error)

func IsDir 

func IsDir(path string) bool

IsDir returns true if the object @ path is a dir

func IsFile 

func IsFile(path string) bool

IsFile returns true if the object @ path is a file

func IsInKubernetesCluster 

func IsInKubernetesCluster() bool

func IsJavaProjectDir 

func IsJavaProjectDir(dirPath string) bool

IsJavaProjectDir Checks if the given @dirPath is in a java project structure for example if the following dir existed "/my-project/src/main/java" then IsJavaProjectDir("/my-project") -> true

func IsLocalFileURL 

func IsLocalFileURL(s string) bool

func IsURL 

func IsURL(s string) bool

func LabelsMapMatchByLabelSelector 

func LabelsMapMatchByLabelSelector(labelSelector string, labelsMap map[string]string) (bool, error)

LabelsMapMatchByLabelSelector returns whether a labelsMap is matched by an encoded label selector corresponding to https://kubernetes.io/docs/concepts/overview/working-with-objects/labels/

Example: 

labelsMap:
  a: b
  c: d
encodedLabelSelector: a=b

returns true

func LogPanic 

func LogPanic(ctx context.Context,
	loggerInstance logger.Logger,
	actionName string,
	args []interface{},
	callStack []byte,
	err interface{})

func MapInterfaceInterfaceToMapStringInterface 

func MapInterfaceInterfaceToMapStringInterface(mapInterfaceInterface map[interface{}]interface{}) map[string]interface{}

MapInterfaceInterfaceToMapStringInterface recursively converts map[interface{}]interface{} to map[string]interface{}

func MapStringInterfaceGetOrDefault 

func MapStringInterfaceGetOrDefault(mapStringInterface map[string]interface{},
	key string,
	defaultValue interface{}) interface{}

MapStringInterfaceGetOrDefault will return the key as an integer or return a default

func MapStringStringToMapStringBytesArray 

func MapStringStringToMapStringBytesArray(m map[string]string) map[string][]byte

MapStringStringToMapStringBytesArray converts the string values of a map to byte arrays Example: {"a": "b"} -> {"a": []byte("b")}

func MapToSlice 

func MapToSlice(m map[string]interface{}) []interface{}

MapToSlice converts {key1: val1, key2: val2 ...} to [key1, val1, key2, val2 ...]

func MatchStringPatterns 

func MatchStringPatterns(patterns []string, s string) bool

func MergeEnvSlices 

func MergeEnvSlices(primaryEnv []v1.EnvVar, secondaryEnv []v1.EnvVar) []v1.EnvVar

MergeEnvSlices merges two lists of environment variables, giving priority to variables from the primary list

func NormalizeURLPath 

func NormalizeURLPath(p string) string

NormalizeURLPath normalizes URL Path examples: "" -> "/" "a" -> "/a/" "//a//b/c/" -> "/a/b/c/"

func ParseQuantityOrDefault 

func ParseQuantityOrDefault(value string,
	defaultValue string,
	loggerInstance logger.Logger) apiresource.Quantity

func PopulateFieldsFromValues 

func PopulateFieldsFromValues[T string | bool | int](fieldsToValues map[*T]T)

PopulateFieldsFromValues populates empty fields with values if the value is not zero. the fieldsToValues argument is a map of pointers to fields to populate and values.

func PrependStringToStringSlice 

func PrependStringToStringSlice(slice []string, str string) []string

PrependStringToStringSlice prepends a string to a string slice

func PrependStringsToStringSlice 

func PrependStringsToStringSlice(slice []string, strs ...string) []string

PrependStringsToStringSlice prepends multiple strings to a string slice

func Quote 

func Quote(s string) string

Quote returns a shell-escaped version of the string s. The returned value is a string that can safely be used as one token in a shell command line.

func RemoveANSIColorsFromString 

func RemoveANSIColorsFromString(s string) string

RemoveANSIColorsFromString strips out ANSI Colors chars from string example: "\u001b[31mHelloWorld" -> "HelloWorld"

func RemoveDuplicatesFromSliceString 

func RemoveDuplicatesFromSliceString(slice []string) []string

func RemoveEmptyLines 

func RemoveEmptyLines(input string) string

RemoveEmptyLines removes all empty lines from a string

func RemoveEnvFromSlice 

func RemoveEnvFromSlice(env v1.EnvVar, slice []v1.EnvVar) []v1.EnvVar

func RemoveStringSliceItemsFromStringSlice 

func RemoveStringSliceItemsFromStringSlice(slice []string, itemsToRemove []string) []string

func RemoveWindowsCarriage 

func RemoveWindowsCarriage(b []byte) []byte

RemoveWindowsCarriage removes windows carriage character '\r' when it follows by '\n'

func RenderTemplate 

func RenderTemplate(text string, data map[string]interface{}) (string, error)

func RenderTemplateWithCustomDelimiters 

func RenderTemplateWithCustomDelimiters(text string,
	data map[string]interface{},
	leftDelimiter string,
	rightDelimiter string) (string, error)

func ResolveDefaultNamespace 

func ResolveDefaultNamespace(namespace string) string

ResolveDefaultNamespace returns the proper default resource namespace, given the current default namespace

func ResolveErrorStatusCodeOrDefault 

func ResolveErrorStatusCodeOrDefault(err error, defaultStatusCode int) int

func ResolveNamespace 

func ResolveNamespace(namespaceArgument string, defaultEnvVarKey string) string

ResolveNamespace returns the namespace by the following order: 1. If namespace is passed as an argument, use that 2. If namespace is passed as an environment variable, use that 3. Alternatively, use "this" namespace (where the pod is running)

func RetryUntilSuccessful 

func RetryUntilSuccessful(duration time.Duration, interval time.Duration, callback func() bool) error

RetryUntilSuccessful calls callback every interval for duration until it returns true

func RetryUntilSuccessfulOnErrorPatterns 

func RetryUntilSuccessfulOnErrorPatterns(
	duration time.Duration,
	interval time.Duration,
	errorRegexPatterns []string,
	callback func(retryCounter int) (string, error)) error

RetryUntilSuccessfulOnErrorPatterns calls callback every interval for duration as long as error pattern is matched the callback argument retryCounter is the number of times the callback was called

func RunningContainerHostname 

func RunningContainerHostname() (string, error)

RunningContainerHostname returns the hostname (aka container id) of the running container

func RunningInContainer 

func RunningInContainer() bool

RunningInContainer returns true if currently running in a container, false otherwise

func SanitizeResponseData 

func SanitizeResponseData(data []byte, headers http.Header) []byte

SanitizeResponseData tries to parse byte data as html. if it succeeds, it is returned sanitized, otherwise the original data is returned. func SanitizeResponseData(data []byte) []byte {

func SendHTTPRequest 

func SendHTTPRequest(httpClient *http.Client,
	method string,
	requestURL string,
	body []byte,
	headers map[string]string,
	cookies []*http.Cookie,
	expectedStatusCode int) ([]byte, *http.Response, error)

SendHTTPRequest Sends an HTTP request using custom http client ignore expectedStatusCode by setting it to 0

func SendHTTPRequestWithContext 

func SendHTTPRequestWithContext(ctx context.Context,
	httpClient *http.Client,
	method string,
	requestURL string,
	body []byte,
	headers map[string]string,
	cookies []*http.Cookie,
	expectedStatusCode int) ([]byte, *http.Response, error)

SendHTTPRequestWithContext is like SendHTTPRequest but with context

func SetLoggerRedactionMode 

func SetLoggerRedactionMode(loggerInstance logger.Logger, enabled bool)

func SetVersionFromEnv 

func SetVersionFromEnv()

SetVersionFromEnv is being used by tests to override linker injected values

func StringInSlice 

func StringInSlice(a string, list []string) bool

func StringMapToString 

func StringMapToString(source map[string]string) string

StringMapToString converts a map of a: x, b: y to a string in the form of "a=x,b=y"

func StringSliceContainsString 

func StringSliceContainsString(slice []string, str string) bool

StringSliceContainsString returns whether the input str is in the slice

func StringSliceContainsStringCaseInsensitive 

func StringSliceContainsStringCaseInsensitive(slice []string, str string) bool

StringSliceContainsStringCaseInsensitive returns whether the input str is in the slice case-insensitive

func StringSliceContainsStringPrefix 

func StringSliceContainsStringPrefix(prefixes []string, str string) bool

StringSliceContainsStringPrefix returns whether the input str has prefix

func StringSliceToIntSlice 

func StringSliceToIntSlice(stringSlice []string) ([]int, error)

StringSliceToIntSlice converts slices of strings to slices of int. e.g. ["1", "3"] -> [1, 3]

func StringToStringMap 

func StringToStringMap(source string, separator string) map[string]string

StringToStringMap converts a string in the form of a{separator}x,b{separator}y to a map of a: x, b: y, inputs source-string & string-separator

func StripPrefixes 

func StripPrefixes(input string, prefixes []string) string

func StripSuffixes 

func StripSuffixes(input string, suffixes []string) string

func StructureToMap 

func StructureToMap(input interface{}) map[string]interface{}

StructureToMap converts a strcuture to a map, flattening all members

func ValidateLabels 

func ValidateLabels(labels map[string]string) error

ValidateLabels validates the given labels according to k8s label constraints

Types

type AbstractS3Client 

type AbstractS3Client struct {
	S3Client
}

func (*AbstractS3Client) Download 

func (asc *AbstractS3Client) Download(file *os.File,
	bucket string,
	itemKey string,
	region string,
	accessKeyID string,
	secretAccessKey string,
	sessionToken string) error

func (*AbstractS3Client) DownloadWithinEC2Instance 

func (asc *AbstractS3Client) DownloadWithinEC2Instance(file *os.File, bucket, itemKey string) error

type AbstractScrubber 

type AbstractScrubber struct {
	SensitiveFields []*regexp.Regexp
	KubeClientSet   kubernetes.Interface
	ReferencePrefix string
	Scrubber        Scrubber
}

func NewAbstractScrubber 

func NewAbstractScrubber(sensitiveFields []*regexp.Regexp, kubeClientSet kubernetes.Interface) *AbstractScrubber

NewAbstractScrubber returns a new AbstractScrubber If the scrubber is only used for restoring, the arguments can be nil

func (*AbstractScrubber) ConvertMapToConfig 

func (s *AbstractScrubber) ConvertMapToConfig(mapConfig interface{}) (interface{}, error)

func (*AbstractScrubber) DecodeSecretData 

func (s *AbstractScrubber) DecodeSecretData(secretData map[string][]byte) (map[string]string, error)

DecodeSecretData decodes the keys of a secrets map

func (*AbstractScrubber) DecodeSecretKey 

func (s *AbstractScrubber) DecodeSecretKey(secretKey string) (string, error)

DecodeSecretKey decodes a secret key and returns the original field

func (*AbstractScrubber) DecodeSecretsMapContent 

func (s *AbstractScrubber) DecodeSecretsMapContent(secretsMapContent string) (map[string]string, error)

DecodeSecretsMapContent decodes the secrets map content

func (*AbstractScrubber) EncodeSecretKey 

func (s *AbstractScrubber) EncodeSecretKey(fieldPath string) string

EncodeSecretKey encodes a secret key

func (*AbstractScrubber) EncodeSecretsMap 

func (s *AbstractScrubber) EncodeSecretsMap(secretsMap map[string]string) (map[string]string, error)

EncodeSecretsMap encodes the keys of a secrets map

func (*AbstractScrubber) GenerateObjectSecretName 

func (s *AbstractScrubber) GenerateObjectSecretName(objectName string) string

GenerateObjectSecretName e generates a secret name for a function, in the form of: `nuclio-secret-<project-name>-<object-name>-<unique-id>`

func (*AbstractScrubber) HasScrubbedConfig 

func (s *AbstractScrubber) HasScrubbedConfig(object interface{}, sensitiveFields []*regexp.Regexp) (bool, error)

HasScrubbedConfig checks if a object has scrubbed data, using the Scrub function

func (*AbstractScrubber) Restore 

func (s *AbstractScrubber) Restore(scrubbedObject interface{}, secretsMap map[string]string) (interface{}, error)

Restore restores sensitive data in an object from a secrets map

func (*AbstractScrubber) Scrub 

func (s *AbstractScrubber) Scrub(objectToScrub interface{},
	existingSecretMap map[string]string,
	sensitiveFields []*regexp.Regexp) (interface{}, map[string]string, error)

Scrub scrubs sensitive data from an object

func (*AbstractScrubber) ValidateReference 

func (s *AbstractScrubber) ValidateReference(objectToScrub interface{},
	existingSecretMap map[string]string,
	fieldPath,
	secretKey,
	stringValue string) error

type CatchAndLogPanicOptions 

type CatchAndLogPanicOptions struct {
	Args          []interface{}
	CustomHandler func(error)
}

type ExportFunctionOptions 

type ExportFunctionOptions struct {
	NoScrub     bool
	CleanupSpec bool
	PrevState   string
}

type FunctionStateMessage 

type FunctionStateMessage string
const (
	FunctionStateMessageUnhealthy FunctionStateMessage = "Function is not healthy"
)

type KubernetesClientWarningHandler 

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

func NewKubernetesClientWarningHandler 

func NewKubernetesClientWarningHandler(logger logger.Logger) *KubernetesClientWarningHandler

func (*KubernetesClientWarningHandler) HandleWarningHeader 

func (kcl *KubernetesClientWarningHandler) HandleWarningHeader(code int, agent string, message string)

HandleWarningHeader handles miscellaneous warning messages yielded by Kubernetes api server e.g.: "autoscaling/v2beta1 HorizontalPodAutoscaler is deprecated in v1.22+, unavailable in v1.25+; use autoscaling/v2beta2 HorizontalPodAutoscaler" Note: code is determined by the Kubernetes server

type MockS3Client 

type MockS3Client struct {
	mock.Mock
	FilePath string
}

func (*MockS3Client) Download 

func (msc *MockS3Client) Download(file *os.File, bucket, itemKey, region, accessKeyID, secretAccessKey, sessionToken string) error

func (*MockS3Client) DownloadWithinEC2Instance 

func (msc *MockS3Client) DownloadWithinEC2Instance(file *os.File, bucket, itemKey string) error

type ReusedMessage 

type ReusedMessage string
const (
	UnexpectedTerminationChildProcess ReusedMessage = "Unexpected termination of child process"
	WorkDirectoryDoesNotExist         ReusedMessage = "Work directory does not exist"
	WorkDirectoryExpectedBeString     ReusedMessage = "Work directory is expected to be string"
	FailedReadFromEventConnection     ReusedMessage = "Failed to read from event connection"
	FailedReadFromControlConnection   ReusedMessage = "Failed to read from control connection"
	FailedReadControlMessage          ReusedMessage = "Failed to read control message"
)

type S3Client 

type S3Client interface {
	Download(file *os.File, bucket, itemKey, region, accessKeyID, secretAccessKey, sessionToken string) error
	DownloadWithinEC2Instance(file *os.File, bucket, itemKey string) error
}

type Scrubber 

type Scrubber interface {
	// Scrub scrubs sensitive data from an object
	Scrub(objectToScrub interface{}, existingSecretMap map[string]string, sensitiveFields []*regexp.Regexp) (interface{}, map[string]string, error)

	// Restore restores sensitive data in an object from a secrets map
	Restore(scrubbedObject interface{}, secretsMap map[string]string) (interface{}, error)

	// ValidateReference validates references in a scrubbed object
	ValidateReference(objectToScrub interface{},
		existingSecretMap map[string]string,
		fieldPath,
		secretKey,
		stringValue string) error

	// ConvertMapToConfig converts map back to an object entity
	ConvertMapToConfig(mapConfig interface{}) (interface{}, error)
}

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