* Kubelet now proxies container streaming between apiserver and container runtime. The connection between kubelet and apiserver is authenticated. Container runtime should change streaming server to serve on localhost, to make the connection between kubelet and container runtime local. ([#64006](https://github.com/kubernetes/kubernetes/pull/64006), [@Random-Liu](https://github.com/Random-Liu))

* Use...

- github.com/aws/aws-sdk-go: [v1.38.49 → v1.44.116](https://github.com/aws/aws-sdk-go/compare/v1.38.49...v1.44.116)
- github.com/container-storage-interface/spec: [v1.6.0 → v1.7.0](https://github.com/container-storage-interface/spec/compare/v1.6.0...v1.7.0)
- github.com/containerd/ttrpc: [v1.0.2 → v1.1.0](https://github.com/containerd/ttrpc/compare/v1.0.2...v1.1.0)

- Now users can get object info like:

  ```bash
    a. kubectl get pod test-pod -o custom-columns=CONTAINER:.spec.containers[0:3].name
    b. kubectl get pod test-pod -o custom-columns=CONTAINER:.spec.containers[-2:].name
  ```

([#73063](https://github.com/kubernetes/kubernetes/pull/73063), [@WanLinghao](https://github.com/WanLinghao))

    * - gcr.io/google-containers/cluster-proportional-autoscaler-amd64
    * - gcr.io/google-containers/dnsmasq-metrics-amd64
    * - gcr.io/google-containers/etcd-empty-dir-cleanup
    * - gcr.io/google-containers/kube-addon-manager
    * - gcr.io/google-containers/kube-dnsmasq-amd64

- kube-dns add-on:
  - All containers are now being executed under more restrictive privileges.
  - Most of the containers now run as non-root user and has the root filesystem set as read-only.
  - The remaining container running as root only has the minimum Linux capabilities it requires to run.

    steps:
      - name: Checkout
        uses: actions/checkout@v6

      - name: Configure JDK
        uses: actions/setup-java@v5
        with:
          distribution: 'temurin'
          java-version: 21

      - name: Setup Gradle
        uses: gradle/actions/setup-gradle@v5

      - name: Run Container Tests

* Bump GCE ContainerVM
  * to container-vm-v20161208 ([release notes](https://cloud.google.com/compute/docs/containers/container_vms#changelog)) ([#38432](https://github.com/kubernetes/kubernetes/pull/38432), [@timstclair](https://github.com/timstclair))

Two alpha features were also added in this release.

The RuntimeClass alpha feature enables a node to surface multiple runtime options to support a variety of workload types.  Examples include native linux containers, and “sandboxed” containers that isolate the container from the host kernel.

```

</details>

## Was ist ein Container { #what-is-a-container }

Container (hauptsächlich Linux-Container) sind eine sehr **leichtgewichtige** Möglichkeit, Anwendungen einschließlich aller ihrer Abhängigkeiten und erforderlichen Dateien zu verpacken und sie gleichzeitig von anderen Containern (anderen Anwendungen oder Komponenten) im selben System isoliert zu halten.