Struct ConfigWatch 

pub struct ConfigWatch { /* private fields */ }

Available on crate feature k8s only.

One ConfigMap’s or Secret’s data, kept current. Cheap to clone; clones share it. The watch stops when the last clone is dropped.

Implementations

impl ConfigWatch

pub async fn config_map( client: Client, namespace: &str, name: &str, ) -> Result<ConfigWatch, Error>

Watch the ConfigMap name in namespace. Fails when it can’t be read now (missing, or no permission).

pub async fn secret( client: Client, namespace: &str, name: &str, ) -> Result<ConfigWatch, Error>

Watch the Secret name in namespace.

pub fn get(&self, key: &str) -> Option<String>

The value of key now.

pub fn snapshot(&self) -> BTreeMap<String, String>

Every key now.

pub fn exists(&self) -> bool

Whether the object exists (it may be deleted after the watch started; the last data is kept).

pub fn on_change( &self, f: impl Fn(&BTreeMap<String, String>) + Send + Sync + 'static, )

Call f with the new data after each change.

pub fn apply_to_env(&self, prefix: &str)

Set every key starting with prefix (RWS_CONFIG_) as an environment variable now and after each change, and have rws re-read its settings (server_config::invalidate). Keys under the prefix that disappear are left as they were.

Trait Implementations

impl Clone for ConfigWatch

fn clone(&self) -> ConfigWatch

Returns a duplicate of the value.

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

Performs copy-assignment from source.