*     <li>Project properties (optional)</li>
     *     <li>User properties (highest precedence)</li>
     * </ul>
     * Note: Project properties contains properties injected from profiles, if applicable. Their precedence is
     * {@code profile > project}, hence active profile property may override project property.
     * <p>

* چگونگی تنظیم **<abbr title="Validation Constraints">محدودیت‌های اعتبارسنجی</abbr>** به عنوان مثال `maximum_length` یا `regex`.
* سیستم **<abbr title="also known as components, resources, providers, services, injectables">Dependency Injection</abbr>** قوی و کاربردی.
* امنیت و تایید هویت, شامل پشتیبانی از **OAuth2** مبتنی بر **JWT tokens** و **HTTP Basic**.
* تکنیک پیشرفته برای تعریف **مدل‌های چند سطحی JSON** (بر اساس Pydantic).

* How to set **validation constraints** as `maximum_length` or `regex`.
* A very powerful and easy to use **<abbr title="also known as components, resources, providers, services, injectables">Dependency Injection</abbr>** system.
* Security and authentication, including support for **OAuth2** with **JWT tokens** and **HTTP Basic** auth.

                                will be injected (0-100).
                              format: int32
                              type: integer
                            percentage:
                              description: Percentage of requests on which the delay
                                will be injected.
                              properties:

        ComponentUtil.register(new SystemHelper(), "systemHelper");
        ComponentUtil.register(new VirtualHostHelper(), "virtualHostHelper");
        ComponentUtil.register(new KeyMatchHelper(), "keyMatchHelper");
        inject(queryHelper);
        queryFieldConfig = new QueryFieldConfig();
        ComponentUtil.register(queryFieldConfig, "queryFieldConfig");
        queryFieldConfig.init();
        QueryProcessor queryProcessor = new QueryProcessor();

### Service Catalog
- **[alpha]** Adds a new API resource `PodPreset` and admission controller to enable defining cross-cutting injection of Volumes and Environment into Pods.

### Volumes
* **[stable]** StorageClass API is promoted to v1 (storage.k8s.io/v1).

  * “kubectl run” now produces Deployments (instead of ReplicationControllers) and
Jobs (instead of Pods) by default.
  * Pods can now consume Secret data in environment variables and inject those
environment variables into a container’s command-line args.
  * Stable version of Heapster which scales up to 1000 nodes: more metrics, reduced
latency, reduced cpu/memory consumption (~4mb per monitored node).

    that 99.99% of servers do it right this fallback is obsolete.
 *  Fix: Do not honor cookies set on a public domain. Previously a malicious site could inject
    cookies on top-level domains like `co.uk` because our cookie parser didn't honor the [public
    suffix][public_suffix] list. Alongside this fix is a new API, `HttpUrl.topPrivateDomain()`,

beta, adding alpha support for a new CSI driver registry as well as for topology, and adding a number of alpha features to support the use of CSI for “local ephemeral volumes” (that is, volumes that exist for the lifecycle of a pod and contain some injected information, like a token or secret).

With Kubernetes v1.12, SIG Storage also introduced alpha support for [volume snapshotting](https://github.com/kubernetes/enhancements/issues/177). This feature introduces the ability to create/delete...

  - Clients should reload the token from disk periodically (once per minute is recommended) to ensure they continue to use a valid token. `k8s.io/client-go` version v11.0.0+ and v0.15.0+ reload tokens automatically.