fix examples

make secret reflector a little nicer to look at

kube/examples/crd_reflector.rs

@@ -1,9 +1,6 @@
 #[macro_use] extern crate log;
-use std::time::Duration;
-
 use kube_derive::CustomResource;
 use serde::{Deserialize, Serialize};
-use tokio::time::delay_for;
 
 use kube::{
     api::{Api, ListParams, Meta},
@@ -28,21 +25,23 @@ async fn main() -> anyhow::Result<()> {
     // This example requires `kubectl apply -f examples/foo.yaml` run first
     let foos: Api<Foo> = Api::namespaced(client, &namespace);
     let lp = ListParams::default().timeout(20); // low timeout in this example
-    let rf = Reflector::new(foos, lp).init().await?;
+    let rf = Reflector::new(foos).params(lp);
+    let runner = rf.clone().run();
 
-    let cloned = rf.clone();
     tokio::spawn(async move {
         loop {
-            if let Err(e) = cloned.poll().await {
-                warn!("Poll error: {:?}", e);
-            }
+            // Periodically read our state
+            tokio::time::delay_for(std::time::Duration::from_secs(5)).await;
+            let crds = rf
+                .state()
+                .await
+                .unwrap()
+                .iter()
+                .map(Meta::name)
+                .collect::<Vec<_>>();
+            info!("Current crds: {:?}", crds);
         }
     });
-
-    loop {
-        delay_for(Duration::from_secs(5)).await;
-        // Read updated internal state (instant):
-        let crds = rf.state().await?.iter().map(Meta::name).collect::<Vec<_>>();
-        info!("Current crds: {:?}", crds);
-    }
+    runner.await?;
+    Ok(())
 }

kube/examples/event_informer.rs

@@ -16,7 +16,7 @@ async fn main() -> anyhow::Result<()> {
 
     let events: Api<Event> = Api::all(client);
     let lp = ListParams::default();
-    let ei = Informer::new(events, lp);
+    let ei = Informer::new(events).params(lp);
 
     loop {
         let mut events = ei.poll().await?.boxed();
@@ -47,6 +47,7 @@ fn handle_event(ev: WatchEvent<Event>) -> anyhow::Result<()> {
         WatchEvent::Error(e) => {
             warn!("Error event: {:?}", e);
         }
+        _ => {}
     }
     Ok(())
 }

kube/examples/job_api.rs

@@ -65,6 +65,7 @@ async fn main() -> anyhow::Result<()> {
             }
             WatchEvent::Deleted(s) => info!("Deleted {}", Meta::name(&s)),
             WatchEvent::Error(s) => error!("{}", s),
+            _ => {}
         }
     }
 

kube/examples/node_informer.rs

@@ -16,7 +16,7 @@ async fn main() -> anyhow::Result<()> {
     let nodes: Api<Node> = Api::all(client.clone());
 
     let lp = ListParams::default().labels("beta.kubernetes.io/os=linux");
-    let ni = Informer::new(nodes, lp);
+    let ni = Informer::new(nodes).params(lp);
 
     loop {
         let mut nodes = ni.poll().await?.boxed();
@@ -77,6 +77,7 @@ async fn handle_nodes(events: &Api<Event>, ne: WatchEvent<Node>) -> anyhow::Resu
         WatchEvent::Error(e) => {
             warn!("Error event: {:?}", e);
         }
+        _ => {}
     }
     Ok(())
 }

kube/examples/node_reflector.rs

@@ -16,36 +16,17 @@ async fn main() -> anyhow::Result<()> {
     let lp = ListParams::default()
         .labels("beta.kubernetes.io/instance-type=m4.2xlarge") // filter instances by label
         .timeout(10); // short watch timeout in this example
-    let rf = Reflector::new(nodes, lp).init().await?;
+    let rf = Reflector::new(nodes).params(lp);
+    let runner = rf.clone().run();
 
-    // rf is initialized with full state, which can be extracted on demand.
-    // Output is an owned Vec<Node>
-    rf.state().await?.into_iter().for_each(|o| {
-        let labels = Meta::meta(&o).labels.clone().unwrap();
-        info!(
-            "Found node {} ({:?}) running {:?} with labels: {:?}",
-            Meta::name(&o),
-            o.spec.unwrap().provider_id.unwrap(),
-            o.status.unwrap().conditions.unwrap(),
-            labels
-        );
-    });
-
-    let cloned = rf.clone();
     tokio::spawn(async move {
         loop {
-            if let Err(e) = cloned.poll().await {
-                warn!("Poll error: {:?}", e);
-            }
+            // Periodically read our state
+            tokio::time::delay_for(std::time::Duration::from_secs(5)).await;
+            let deploys: Vec<_> = rf.state().await.unwrap().iter().map(Meta::name).collect();
+            info!("Current {} nodes: {:?}", deploys.len(), deploys);
         }
     });
-
-    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 {} nodes: {:?}", deploys.len(), deploys);
-    }
+    runner.await?;
+    Ok(())
 }

kube/examples/pod_informer.rs

@@ -50,6 +50,7 @@ fn handle_pod(ev: WatchEvent<Pod>) -> anyhow::Result<()> {
         WatchEvent::Deleted(o) => {
             info!("Deleted Pod: {}", Meta::name(&o));
         }
+        WatchEvent::Bookmark(_) => {}
         WatchEvent::Error(e) => {
             warn!("Error event: {:?}", e);
         }

kube/examples/pod_reflector.rs

@@ -5,8 +5,6 @@ use kube::{
     runtime::Reflector,
     Client,
 };
-use std::time::Duration;
-use tokio::time::delay_for;
 
 #[tokio::main]
 async fn main() -> anyhow::Result<()> {
@@ -17,34 +15,17 @@ async fn main() -> anyhow::Result<()> {
 
     let pods: Api<Pod> = Api::namespaced(client, &namespace);
     let lp = ListParams::default().timeout(10); // short watch timeout in this example
-    let rf = Reflector::new(pods, lp).init().await?;
+    let rf = Reflector::new(pods).params(lp);
+    let runner = rf.clone().run();
 
-    // Can read initial state now:
-    rf.state().await?.into_iter().for_each(|pod| {
-        let name = Meta::name(&pod);
-        let phase = pod.status.unwrap().phase.unwrap();
-        let containers = pod
-            .spec
-            .unwrap()
-            .containers
-            .into_iter()
-            .map(|c| c.name)
-            .collect::<Vec<_>>();
-        info!("Found initial pod {} ({}) with {:?}", name, phase, containers);
-    });
-
-    let cloned = rf.clone();
     tokio::spawn(async move {
         loop {
-            if let Err(e) = cloned.poll().await {
-                warn!("Poll error: {:?}", e);
-            }
+            // Periodically read our state
+            tokio::time::delay_for(std::time::Duration::from_secs(5)).await;
+            let pods: Vec<_> = rf.state().await.unwrap().iter().map(Meta::name).collect();
+            info!("Current pods: {:?}", pods);
         }
     });
-
-    loop {
-        delay_for(Duration::from_secs(5)).await;
-        let pods: Vec<_> = rf.state().await?.iter().map(Meta::name).collect();
-        info!("Current pods: {:?}", pods);
-    }
+    runner.await?;
+    Ok(())
 }

kube/examples/secret_reflector.rs

@@ -19,11 +19,14 @@ enum Decoded {
 
 fn decode(secret: &Secret) -> BTreeMap<String, Decoded> {
     let mut res = BTreeMap::new();
-    for (k, v) in secret.data.clone().unwrap() {
-        if let Ok(b) = std::str::from_utf8(&v.0) {
-            res.insert(k, Decoded::Utf8(b.to_string()));
-        } else {
-            res.insert(k, Decoded::Bytes(v.0));
+    // Ignoring binary data for now
+    if let Some(data) = secret.data.clone() {
+        for (k, v) in data {
+            if let Ok(b) = std::str::from_utf8(&v.0) {
+                res.insert(k, Decoded::Utf8(b.to_string()));
+            } else {
+                res.insert(k, Decoded::Bytes(v.0));
+            }
         }
     }
     res
@@ -38,20 +41,23 @@ async fn main() -> anyhow::Result<()> {
 
     let secrets: Api<Secret> = Api::namespaced(client, &namespace);
     let lp = ListParams::default().timeout(10); // short watch timeout in this example
-    let rf = Reflector::new(secrets, lp).init().await?;
-
-    // Can read initial state now:
-    rf.state().await?.into_iter().for_each(|secret| {
-        let res = decode(&secret);
-        info!("Found secret {} with data: {:?}", Meta::name(&secret), res);
+    let rf = Reflector::new(secrets).params(lp);
+    let runner = rf.clone().run();
+
+    tokio::spawn(async move {
+        loop {
+            // Periodically read our state
+            tokio::time::delay_for(std::time::Duration::from_secs(5)).await;
+            let secrets: Vec<_> = rf
+                .state()
+                .await
+                .unwrap()
+                .iter()
+                .map(|s| format!("{}: {:?}", Meta::name(s), decode(s).keys()))
+                .collect();
+            info!("Current secrets: {:?}", secrets);
+        }
     });
-
-    loop {
-        // Update internal state by calling watch (waits the full timeout)
-        rf.poll().await?; // ideally call this from a thread/task
-
-        // Read updated internal state (instant):
-        let secrets: Vec<_> = rf.state().await?.iter().map(Meta::name).collect();
-        info!("Current secrets: {:?}", secrets);
-    }
+    runner.await?;
+    Ok(())
 }