Name: Open Policy Agent Deep Dive
Uploaded: 2021-09-17T15:49:23.000Z
Duration: 1 h 25 min 13 s
Description: Open Policy Agent Deep Dive

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Open Policy Agent (OPA) is a policy engine provided by the vendor, Styra. It aims to provide a unified toolset and framework for policy management across the cloud native stack. According to the vendor, OPA allows users to define and enforce policies in a declarative language, decoupling policy from the service's code. It is designed to be suitable for companies of all sizes, from small startups to large enterprises. OPA is commonly used by DevOps teams, security teams, compliance teams, cloud native application developers, and Kubernetes administrators to enforce fine-grained controls and policies, ensure compliance, and manage policy logic effectively.

## Key Features

**Declarative Policy**: OPA enables users to express policies in a high-level, declarative language called Rego. According to the vendor, this language promotes safe, performant, and fine-grained controls. It supports JSON data structures and provides over 150 built-in functions for enhanced policy management.

**Context-aware**: OPA allows users to write policies that are context-aware and adaptable to the environment. By leveraging external information, policies can be more meaningful and relevant to specific use cases. The vendor claims that this enables dynamic and adaptable policy enforcement.

**Architectural Flexibility**: OPA provides architectural flexibility, offering users different integration options. It can be deployed as a separate process, integrated as a Go library, or compiled to WebAssembly instructions for seamless embedding within services.

**Tools for Policy Authoring**: OPA offers a range of tools for policy authoring, including integrated development environments (IDEs), a web-based Rego Playground, and command-line interfaces (CLI). These tools aim to provide users with enhanced control over policy authoring and testing.

**OPA Ecosystem**: OPA has a thriving ecosystem with various integrations, use cases, and related projects. According to the vendor, the Rego language is supported by learning resources and policy testing tools. OPA integrates with popular technologies such as Kubernetes, Envoy, Terraform, and Kafka, providing policy-based control and authorization. It also supports different programming languages, REST APIs, and WebAssembly (Wasm) functionality.

**Security Policy**: The vendor states that OPA follows a security disclosures and response policy to ensure responsible handling of critical issues. Users can report security bugs through designated channels, and the OPA security team acknowledges, analyzes, and fixes issues following a disclosure policy that includes coordination with CVE issuance and public announcements.

Open Policy Agent is a free and open source project, available under the Apache 2.0 license, enabling unified, declarative, context-aware control across the entire stack. It is a general-purpose policy engine that unifies policy enforcement across the stack. OPA provides a high-level declarative language that lets the user specify policy as code and simple APIs to offload policy decision-making from software. It can be used to enforce policies in microservices, Kubernetes, CI/CD pipelines, API gateways, etc.

Open Policy Agent

Policy Management

Intro: Open Policy Agent - Torin Sandall, Styra

Don’t miss out! Join us at our upcoming event: KubeCon + CloudNativeCon North America 2021 in Los Angeles, CA from October 12-15. Learn more at https://kubecon.io The conference features presentations from developers and end users of Kubernetes, Prometheus, Envoy, and all of the other CNCF-hosted projects.

Sponsored Session: Datadog - Policy-as-code for Kubernetes with Gatekeeper

Speakers: Ara Pulido

As more enterprises migrate to cloud native environments like Kubernetes, the need for scalable ways to define and enforce fine-grained policies increases: how can I limit the number of replicas of a pod for certain users? how can I ensure that all images come from trusted registries?

Gatekeeper is an open source project to integrate Open Policy Agent (OPA) in Kubernetes environments. Gatekeeper allows to define policy as Kubernetes objects, making it easier to adopt policy-as-code practices in Kubernetes environments and sharing reusable policy templates.

In this demo we will explain how to set up Gatekeeper for Kubernetes environments. You’ll learn how to adopt policy-as-code techniques and how you can integrate Gatekeeper with your existing tools.

How to test Terraform compliance using the Open Policy Agent (OPA)

Infracost policies enable centralized teams, who are often helping others with cloud costs, to provide advice before resources are launched, setup guardrails, and prevent human error. Follow our docs to try this: https://www.infracost.io/docs/features/cost_policies/

Infracost demo: cost policies with Open Policy Agent

Civo Online Meetup #4: Focus on Machine Learning on Kubernetes, and Open Policy Agent

AuthZ as a Service | Styra Run Demo

Open Policy Agent Deep Dive

User Managed Access and OPA Demo

Open Source

The Open Policy Agent (OPA) is an open-source general-purpose policy engine hosted by the Cloud Native Computing Foundation (CNCF). At OPA’s core is a domain-agnostic declarative language that embodies policy as code. OPA helps you implement policy as code so that you can apply best practices like unit testing, dry runs, and code review to your policies.

0:00 Intro Of Speaker 
1:39 What problem does OPA solves?
2:30 Challenges managing Policies in Complex Systems?
3:11 Goals Of OPA
3:57 What OPA provide to us? 
6:39 Some words on OPA community
7:44 OPA production users
8:00 Kelsey thoughts on OPA
8:26 OPA decision model
11:18 OPA deployment 
12:39 Policy Authoring & Rego 
14:30 Policy Data  
16:40 Demo Rego in action 🚀 
20:36 Testing Policies in Rego
22:22 Formatting policies in Rego 
23:00 Providing Input to policies  
25:45 Testing Input policies 
27:00 OPA eval and what's the limitations? 

🚀 OPA's responsibility is to make a policy decision on its own and return that decision as a JSON object back to the caller. It's up to the caller to decide what to do with the OPA decision. Semantically, OPA only operates on the data passed to it (typically as JSON). So OPA doesn't require a deep knowledge about the environment itself. This makes OPA flexible and portable to many different use cases.
🚀  Rego is a high-level declarative language that's based on decades of research into policy systems. It embodies specific ideas that make it useful for these kinds of more modern cloud-native systems and is designed like an onion. There are core parts of the language that are extremely fast. As you need more expressiveness, you move up the performance curve.
🚀  OPA is most often used as an admission controller in Kubernetes. An admission controller is where all the semantic validation of Kubernetes resources occur before resources are persisted to etcd and controllers go off and start doing work.

Join Anders for a deep dive session that shows how to apply policy as code across microservices and Kubernetes, covering core language features like search, composition, and querying of complex document-oriented data. See how powerful declarative languages become with the right tooling.

 About the Guest

🎓 Anders Eknert | Developer Advocate at Styra, Inc. 🎓 

Have worked in various roles from systems developer to technical lead, team lead and developer advocate. With a background in both tech and business, I enjoy building bridges between people from all backgrounds. Technical experience across the full stack in a number of different languages, frameworks and data stores - the last years however have been quite heavy on JVM languages and tooling - Java, Kotlin, Clojure, Groovy and related technologies. From time to time scripting as well, using whatever seems like the best tool for the job including Python, Scheme and of course just regular shell scripts.
   
🐦: https://twitter.com/anderseknert
🤝: https://www.linkedin.com/in/anderseknert/

A curated list of OPA related tools, frameworks and articles.
🚀 https://github.com/anderseknert/awesome-opa 🚀

⚒️  About the OPA.
 
Policy-based control for cloud native environments

🌍 :  https://www.openpolicyagent.org/
🌟 :  https://github.com/open-policy-agent/opa
👩‍💻 :  https://play.openpolicyagent.org/
🐦 :  https://twitter.com/openpolicyagent

Makers of OPA 
🌍 :  https://www.styra.com/
🐦 :  https://twitter.com/StyraInc 
🤝 :  https://www.linkedin.com/company/styra/

👨‍🎓 About the Host 👨‍🎓

🐦:  https://twitter.com/cloudnativeboy
🤝:  https://www.linkedin.com/in/saim-safder/

Join Cloud Native Islamabad community.
🙌 : https://discord.gg/yypcwN6
 
🧑‍🤝‍🧑 About the Community 🧑‍🤝‍🧑 

🐦:  https://twitter.com/CloudIslamabad
🤝:  https://www.linkedin.com/company/cloud-native-islamabad/
Here's we host our Cloud Native Webinar's Thanks to CNCF: 
📺:  https://community.cncf.io/islamabad/
🔔:   https://www.youtube.com/channel/UCzeq-M5SLkFyXe71TYUkgjg?sub_confirmation=1
😎:  https://www.instagram.com/cloudnativeislamabad/
 
 #CloudNativeIslamabad  #OpenPolicyAgent #StyraInc

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What is Open Policy Agent?