kubernetes/staging/src/k8s.io/kubectl/pkg/cmd/set/env/env_resolve.go

type ResourceStore …

// NewResourceStore returns a pointer to a new resource store data structure.
func NewResourceStore() *ResourceStore { … }

// getSecretRefValue returns the value of a secret in the supplied namespace
func getSecretRefValue(client kubernetes.Interface, namespace string, store *ResourceStore, secretSelector *corev1.SecretKeySelector) (string, error) { … }

// getConfigMapRefValue returns the value of a configmap in the supplied namespace
func getConfigMapRefValue(client kubernetes.Interface, namespace string, store *ResourceStore, configMapSelector *corev1.ConfigMapKeySelector) (string, error) { … }

// getFieldRef returns the value of the supplied path in the given object
func getFieldRef(obj runtime.Object, from *corev1.EnvVarSource) (string, error) { … }

// extractFieldPathAsString extracts the field from the given object
// and returns it as a string.  The object must be a pointer to an
// API type.
func extractFieldPathAsString(obj interface{ … }

// splitMaybeSubscriptedPath checks whether the specified fieldPath is
// subscripted, and
//   - if yes, this function splits the fieldPath into path and subscript, and
//     returns (path, subscript, true).
//   - if no, this function returns (fieldPath, "", false).
//
// Example inputs and outputs:
//   - "metadata.annotations['myKey']" --> ("metadata.annotations", "myKey", true)
//   - "metadata.annotations['a[b]c']" --> ("metadata.annotations", "a[b]c", true)
//   - "metadata.labels[”]"           --> ("metadata.labels", "", true)
//   - "metadata.labels"               --> ("metadata.labels", "", false)
func splitMaybeSubscriptedPath(fieldPath string) (string, string, bool) { … }

// formatMap formats map[string]string to a string.
func formatMap(m map[string]string) (fmtStr string) { … }

// getResourceFieldRef returns the value of a resource in the given container
func getResourceFieldRef(from *corev1.EnvVarSource, container *corev1.Container) (string, error) { … }

// ExtractContainerResourceValue extracts the value of a resource
// in an already known container
func extractContainerResourceValue(fs *corev1.ResourceFieldSelector, container *corev1.Container) (string, error) { … }

// convertResourceCPUToString converts cpu value to the format of divisor and returns
// ceiling of the value.
func convertResourceCPUToString(cpu *resource.Quantity, divisor resource.Quantity) (string, error) { … }

// convertResourceMemoryToString converts memory value to the format of divisor and returns
// ceiling of the value.
func convertResourceMemoryToString(memory *resource.Quantity, divisor resource.Quantity) (string, error) { … }

// convertResourceHugePagesToString converts hugepages value to the format of divisor and returns
// ceiling of the value.
func convertResourceHugePagesToString(hugePages *resource.Quantity, divisor resource.Quantity) (string, error) { … }

// convertResourceEphemeralStorageToString converts ephemeral storage value to the format of divisor and returns
// ceiling of the value.
func convertResourceEphemeralStorageToString(ephemeralStorage *resource.Quantity, divisor resource.Quantity) (string, error) { … }

// GetEnvVarRefValue returns the value referenced by the supplied EnvVarSource given the other supplied information.
func GetEnvVarRefValue(kc kubernetes.Interface, ns string, store *ResourceStore, from *corev1.EnvVarSource, obj runtime.Object, c *corev1.Container) (string, error) { … }

// GetEnvVarRefString returns a text description of whichever field is set within the supplied EnvVarSource argument.
func GetEnvVarRefString(from *corev1.EnvVarSource) string { … }

// IsHugePageResourceName returns true if the resource name has the huge page
// resource prefix.
func IsHugePageResourceName(name corev1.ResourceName) bool { … }