Struct EnvLayers 

pub struct EnvLayers { /* private fields */ }

The layers an EffectiveEnv is resolved from, each a map of variables. Build it with the with_* methods in any order; resolution applies Layer order.

Implementations

impl EnvLayers

pub fn new() -> Self

No layers.

pub fn with_plain(self, layer: Layer, vars: &BTreeMap<String, String>) -> Self

Set a plain layer.

pub fn with_secrets(self, layer: Layer, vars: &BTreeMap<String, String>) -> Self

Set a layer of secret values (e.g. the catalog’s default credentials).

pub fn with_vars(self, layer: Layer, vars: &VarSet) -> Self

Set a layer from a store VarSet (literals and secret references).

pub fn with_overlay(self, source: &str, overlay: &Overlay) -> Self

Add a source’s overlay, after the sources added before it.

pub fn resolve( &self, providers: &SecretProviders, ) -> Result<EffectiveEnv, SecretError>

Resolve every variable: the highest layer setting it wins (a placement key can’t be overridden), then secret references are resolved with providers. Any reference that can’t be resolved is an error; nothing falls back. A key some layer holds as a secret stays masked even where a higher layer sets it as a plain literal.

Trait Implementations

impl Clone for EnvLayers

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for EnvLayers

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for EnvLayers

fn default() -> Self

Returns the “default value” for a type.