Struct kube_client::Client
source · pub struct Client { /* private fields */ }
Expand description
Client for connecting with a Kubernetes cluster.
The easiest way to instantiate the client is either by
inferring the configuration from the environment using
Client::try_default
or with an existing Config
using Client::try_from
.
Implementations§
source§impl Client
impl Client
Constructors and low-level api interfaces.
Most users only need Client::try_default
or Client::new
from this block.
The many various lower level interfaces here are for more advanced use-cases with specific requirements.
sourcepub fn new<S, B, T>(service: S, default_namespace: T) -> Self
pub fn new<S, B, T>(service: S, default_namespace: T) -> Self
Create a Client
using a custom Service
stack.
ConfigExt
provides extensions for
building a custom stack.
To create with the default stack with a Config
, use
Client::try_from
.
To create with the default stack with an inferred Config
, use
Client::try_default
.
§Example
use kube::{client::ConfigExt, Client, Config};
use tower::ServiceBuilder;
use hyper_util::rt::TokioExecutor;
let config = Config::infer().await?;
let service = ServiceBuilder::new()
.layer(config.base_uri_layer())
.option_layer(config.auth_layer()?)
.service(hyper_util::client::legacy::Client::builder(TokioExecutor::new()).build_http());
let client = Client::new(service, config.default_namespace);
sourcepub async fn try_default() -> Result<Self>
pub async fn try_default() -> Result<Self>
Create and initialize a Client
using the inferred configuration.
Will use Config::infer
which attempts to load the local kubeconfig first,
and then if that fails, trying the in-cluster environment variables.
Will fail if neither configuration could be loaded.
let client = Client::try_default().await?;
If you already have a Config
then use Client::try_from
instead.
sourcepub fn default_namespace(&self) -> &str
pub fn default_namespace(&self) -> &str
Get the default namespace for the client
The namespace is either configured on context
in the kubeconfig,
falls back to default
when running locally,
or uses the service account’s namespace when deployed in-cluster.
sourcepub async fn send(&self, request: Request<Body>) -> Result<Response<Body>>
pub async fn send(&self, request: Request<Body>) -> Result<Response<Body>>
Perform a raw HTTP request against the API and return the raw response back. This method can be used to get raw access to the API which may be used to, for example, create a proxy server or application-level gateway between localhost and the API server.
sourcepub async fn connect(
&self,
request: Request<Vec<u8>>,
) -> Result<WebSocketStream<TokioIo<Upgraded>>>
pub async fn connect( &self, request: Request<Vec<u8>>, ) -> Result<WebSocketStream<TokioIo<Upgraded>>>
Make WebSocket connection.
sourcepub async fn request<T>(&self, request: Request<Vec<u8>>) -> Result<T>where
T: DeserializeOwned,
pub async fn request<T>(&self, request: Request<Vec<u8>>) -> Result<T>where
T: DeserializeOwned,
Perform a raw HTTP request against the API and deserialize the response as JSON to some known type.
sourcepub async fn request_text(&self, request: Request<Vec<u8>>) -> Result<String>
pub async fn request_text(&self, request: Request<Vec<u8>>) -> Result<String>
Perform a raw HTTP request against the API and get back the response as a string
sourcepub async fn request_stream(
&self,
request: Request<Vec<u8>>,
) -> Result<impl AsyncBufRead>
pub async fn request_stream( &self, request: Request<Vec<u8>>, ) -> Result<impl AsyncBufRead>
Perform a raw HTTP request against the API and stream the response body.
The response can be processed using AsyncReadExt
and AsyncBufReadExt
.
sourcepub async fn request_status<T>(
&self,
request: Request<Vec<u8>>,
) -> Result<Either<T, Status>>where
T: DeserializeOwned,
pub async fn request_status<T>(
&self,
request: Request<Vec<u8>>,
) -> Result<Either<T, Status>>where
T: DeserializeOwned,
Perform a raw HTTP request against the API and get back either an object
deserialized as JSON or a Status
Object.
sourcepub async fn request_events<T>(
&self,
request: Request<Vec<u8>>,
) -> Result<impl TryStream<Item = Result<WatchEvent<T>>>>where
T: Clone + DeserializeOwned,
pub async fn request_events<T>(
&self,
request: Request<Vec<u8>>,
) -> Result<impl TryStream<Item = Result<WatchEvent<T>>>>where
T: Clone + DeserializeOwned,
Perform a raw request and get back a stream of WatchEvent
objects
source§impl Client
impl Client
Low level discovery methods using k8s_openapi
types.
Consider using the discovery
module for
easier-to-use variants of this functionality.
The following methods might be deprecated to avoid confusion between similarly named types within discovery
.
sourcepub async fn apiserver_version(&self) -> Result<Info>
pub async fn apiserver_version(&self) -> Result<Info>
Returns apiserver version.
sourcepub async fn list_api_groups(&self) -> Result<APIGroupList>
pub async fn list_api_groups(&self) -> Result<APIGroupList>
Lists api groups that apiserver serves.
sourcepub async fn list_api_group_resources(
&self,
apiversion: &str,
) -> Result<APIResourceList>
pub async fn list_api_group_resources( &self, apiversion: &str, ) -> Result<APIResourceList>
Lists resources served in given API group.
§Example usage:
let apigroups = client.list_api_groups().await?;
for g in apigroups.groups {
let ver = g
.preferred_version
.as_ref()
.or_else(|| g.versions.first())
.expect("preferred or versions exists");
let apis = client.list_api_group_resources(&ver.group_version).await?;
dbg!(apis);
}
sourcepub async fn list_core_api_versions(&self) -> Result<APIVersions>
pub async fn list_core_api_versions(&self) -> Result<APIVersions>
Lists versions of core
a.k.a. ""
legacy API group.
sourcepub async fn list_core_api_resources(
&self,
version: &str,
) -> Result<APIResourceList>
pub async fn list_core_api_resources( &self, version: &str, ) -> Result<APIResourceList>
Lists resources served in particular core
group version.
Trait Implementations§
Auto Trait Implementations§
impl Freeze for Client
impl !RefUnwindSafe for Client
impl Send for Client
impl Sync for Client
impl Unpin for Client
impl !UnwindSafe for Client
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
source§default unsafe fn clone_to_uninit(&self, dst: *mut T)
default unsafe fn clone_to_uninit(&self, dst: *mut T)
clone_to_uninit
)