Changes the node object which is created by the agent in Kubernetes t…

…o report the Stackable Agent version, not the Krustlet version. (#315)

A running Stackable agent registers a node at the K8s API.
In its metadata, it sets its version to the version of the underlying krustlet. It would be more convenient for us to see the actual stackable-agent version there.
Additionally, we should remove/overwrite the label type so that it does no longer hold the value krustlet which might lead to wrongly scheduled pods if Stackable coexists with other platforms that use the krustlet.

This changes the node object which is created by the agent in Kubernetes to report the Stackable Agent version, not the Krustlet version

CHANGELOG.md

@@ -12,6 +12,12 @@
 [#312]: https://github.com/stackabletech/agent/pull/312
 [#318]: https://github.com/stackabletech/agent/pull/318
 
+### Changed
+- Changed the version reported by the Stackable Agent in `nodeInfo.kubeletVersion` of the `Node` object in Kubernetes 
+  from the version of the Krustlet library to the Stackable Agent version ([#315]).
+
+[#315]: https://github.com/stackabletech/agent/pull/315
+
 ## [0.6.1] - 2021-09-14
 
 ### Changed

src/provider/mod.rs

@@ -50,6 +50,11 @@ mod repository;
 mod states;
 pub mod systemdmanager;
 
+mod built_info {
+    // The file has been placed there by the build script.
+    include!(concat!(env!("OUT_DIR"), "/built.rs"));
+}
+
 /// Provider-level state shared between all pods
 #[derive(Clone)]
 pub struct ProviderState {
@@ -240,6 +245,7 @@ impl Provider for StackableProvider {
     async fn node(&self, builder: &mut Builder) -> anyhow::Result<()> {
         builder.set_architecture(Self::ARCH);
         builder.set_pod_cidr(&self.pod_cidr);
+        builder.set_kubelet_version(built_info::PKG_VERSION);
         builder.add_taint("NoSchedule", "kubernetes.io/arch", Self::ARCH);
         builder.add_taint("NoExecute", "kubernetes.io/arch", Self::ARCH);
         Ok(())