kube 0.30.0

Kubernetes client in the style of client-go
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49

#[macro_use] extern crate log;
use k8s_openapi::api::apps::v1::Deployment;
use kube::{
    api::{ListParams, Meta, Resource},
    client::APIClient,
    config,
    runtime::Reflector,
};

#[tokio::main]
async fn main() -> anyhow::Result<()> {
    std::env::set_var("RUST_LOG", "info,kube=debug");
    env_logger::init();
    let config = config::load_kube_config().await?;
    let client = APIClient::new(config);
    let namespace = std::env::var("NAMESPACE").unwrap_or("default".into());

    let resource = Resource::namespaced::<Deployment>(&namespace);
    let lp = ListParams::default().timeout(10); // short watch timeout in this example
    let rf: Reflector<Deployment> = Reflector::new(client, lp, resource).init().await?;

    // rf is initialized with full state, which can be extracted on demand.
    // Output is an owned Vec<Deployment>
    rf.state().await?.into_iter().for_each(|d| {
        info!(
            "Found deployment for {} - {} replicas running {:?}",
            Meta::name(&d),
            d.status.unwrap().replicas.unwrap(),
            d.spec
                .unwrap()
                .template
                .spec
                .unwrap()
                .containers
                .into_iter()
                .map(|c| c.image.unwrap())
                .collect::<Vec<_>>()
        );
    });

    loop {
        // Update internal state by calling watch (waits the full timeout)
        rf.poll().await?;

        // Read the updated internal state (instant):
        let deploys: Vec<_> = rf.state().await?.iter().map(Meta::name).collect();
        info!("Current deploys: {:?}", deploys);
    }
}