cel

Documentation

Index

• func CompileExpressionWithEnv(expression string, env *cel.Env) (cel.Program, error)
• func Evaluate(expression string, obj client.Object) (any, error)
• func EvaluateExpression(yamlStr string, templateData map[string]any) ([]byte, error)
• func EvaluateList(expression string, objs []client.Object) ([]any, error)
• func EvaluateProgram(prg cel.Program, data map[string]any) (any, error)
• func EvaluateTyped[T any](expression string, obj client.Object) (T, error)
• func EvaluateWithData(expression string, env *cel.Env, data map[string]any) (any, error)
• func StructToMap(v any) (map[string]any, error)

Functions

func CompileExpressionWithEnv

func CompileExpressionWithEnv(expression string, env *cel.Env) (cel.Program, error)

CompileExpressionWithEnv compiles a CEL expression using the provided environment. This is a shared helper that can be reused across different CEL evaluation contexts.

func Evaluate

func Evaluate(expression string, obj client.Object) (any, error)

Evaluate evaluates a CEL expression against a single Kubernetes object. Returns the result of the evaluation.

func EvaluateExpression

func EvaluateExpression(yamlStr string, templateData map[string]any) ([]byte, error)

EvaluateExpression takes a YAML string with ${...} placeholders and evaluates them as CEL expressions.

func EvaluateList

func EvaluateList(expression string, objs []client.Object) ([]any, error)

EvaluateList evaluates a CEL expression against multiple Kubernetes objects. Returns a slice of results, one for each input object.

func EvaluateProgram

func EvaluateProgram(prg cel.Program, data map[string]any) (any, error)

EvaluateProgram evaluates an already compiled CEL program against the given data.

func EvaluateTyped

func EvaluateTyped[T any](expression string, obj client.Object) (T, error)

EvaluateTyped evaluates a CEL expression against a single Kubernetes object. The result is unmarshalled into the specified generic type T. Returns the result of the evaluation or an error.

func EvaluateWithData

func EvaluateWithData(expression string, env *cel.Env, data map[string]any) (any, error)

EvaluateWithData evaluates a CEL expression against arbitrary data using a custom CEL environment.

func StructToMap

func StructToMap(v any) (map[string]any, error)

StructToMap marshals a value as JSON and unmarshals it into the map shape CEL evaluates against.