pawan bhardwaj

Pawan is a seasoned business and technology enthusiast who welcomes challenges and pushes boundaries for value creation. In addition to his passion for technology, he also enjoys learning about music, art, architecture, and philosophy as lifelong pursuits.

In his career, he has worked in the domains of product management, solutions architecture, cybersecurity, cloud, telecom, and software engineering. He has led SaaS scaling initiatives in Cybersecurity (IAM), portfolio evolutions to cloud and telecom APIs, and deep partner engagements.

He has an MBA from Sonoma State University and an MS from the University of Delhi.

Principal Product Manager

Pawan Bhardwaj

jc tierney

JC Tierney was born and raised in the suburbs of Chicago, and is a life-long Blackhawks, White Sox and Bears fan.

He graduated from Benet Academy in Lisle, Illinois. He went on to attend the University of Dayton, where he graduated with a degree in Management Information Systems, and loved every minute of the experience.

Director, Engineering

JC Tierney

Efficiency on a robust foundation: Exploring multi-subscriber (Public Cloud) deployment on Auth0's converged platform architecture.

**TL;DR:** Auth0’s SaaS services are available via two modes of cloud deployment:

* Multi-subscriber (shared infrastructure, a.k.a. Public Cloud) 
* Single subscriber (dedicated infrastructure, a.k.a. Private Cloud). 

These offerings now have a converged platform architecture that increases business agility, developer productivity, scalability, reliability, and security by using industry-leading tools and fully automated operations.

This article continues a series of earlier ones focused on Private Cloud deployments. Unlike the single-subscriber Private Cloud, the Public Cloud hosts thousands of subscribers. In multi-subscriber deployments, data isolation, security, and elimination of noisy neighbor problems are paramount.

Public Cloud leverages the converged architecture composed of three tiers - the Central tier, Points of Presence (PoPs), and Spaces. The Central tier and PoPs are for control, operations, and shared services. Spaces are environments that provide customer identity services as per customers’ needs.

We leverage Kubernetes for lifecycle and runtime management of Auth0’s cloud-native containerized solution. Auth0 is composed of stateless services that are easier to scale. We use MongoDB, PostgreSQL, and Redis as required by the situation. We ensure a robust and performant solution through network isolation and extensive use of edge networks for DDoS protection, rate limiting, and low-latency DNS resolution (including custom domains). The converged architecture's intra-region High Availability (HA) and inter-region geo-failover characteristics help us meet the availability SLAs of Public Cloud deployments.

## Auth0 Services on Multi-Subscriber (Public Cloud) and Single-Subscriber (Private Cloud) Deployments

Auth0 is a Software-as-a-Service (SaaS) solution with two deployment models - Public Cloud and Private Cloud. The Public Cloud is a multi-subscriber environment where resources are shared between customers and is available in the United States, Europe, Australia, Japan, and now in the United Kingdom. Private Cloud deployments, on the other hand, are single-subscriber environments that provide customers with dedicated infrastructure and can be deployed in most regions across Amazon Web Services (AWS) and Microsoft Azure.

The Public Cloud offering is deployed on AWS and addresses the needs of a vast majority of customers. However, customers may choose Private Cloud for a variety of reasons, such as: 

* Geographical requirements that dictate deploying in an area not served by Public Cloud (e.g. for data residency and/or latency reduction)
* Industry-specific needs (e.g., PCI compliance)
* Preference for Microsoft Azure instead of AWS
* Higher transaction volume than allowed on Public Cloud

![Auth0 Services on Multi-Subscriber (Public Cloud)](https://images.ctfassets.net/23aumh6u8s0i/6ex2w8DgyfbKhdJLx1lIPi/60a5ba0c641c9059317da35e9f6aab1c/multi-subscriber-public-cloud-01.png)

## Why Converged Architecture?

The converged architecture allows us to deploy and manage both Public and Private Cloud offerings on the same underpinning. This architecture is built on the following premises:

* Multi-cloud: AWS and Azure cloud support through a common interface
* Container orchestrated: use of container images instead of installing packages
* Stateless: scalable and replaceable by design
* Immutable: run only trusted code and configuration
* Fully automated: provisioning, upgrades, and decommissioning are done by machines
* GitOps: enhanced DevOps, push code and safely reproduce it thousands of times

![Architecture](https://images.ctfassets.net/23aumh6u8s0i/57nIODdJEv5clLYYswHEl5/12fabdd26c7eddf4db40754196ef1659/multi-subscriber-public-cloud-02.png)

The benefits of a single underlying architecture for developing, deploying, and operating services across different environments are manifold. The primary reason is the ability to offer new capabilities to customers faster and at a lower expense. The architecture also allows us to ensure feature parity across different deployment environments seamlessly.

The converged architecture helps in focusing the organization’s energy on a common infrastructure that yields higher developer productivity/velocity. It results in improved platform scalability to address various scaling demands from both multi-subscriber and single-subscriber deployments. It provides a constructive space for assessment and adoption of security practices that might be perceived as unique to one deployment environment type, but have practical implications on the other as well. It also helps with reliability refinements and enhancements across the board. 

Besides optimizing engineering resources, a converged architecture has several other internal benefits through unified automation, toolsets, and processes. It has expedited identification and realization of infrastructure and operational cost optimizations across the board, which helps deliver good value to our customers.

## Deployment Characteristics of Multi-Subscriber Services 

As a reminder, the Public Cloud is designed to host thousands of subscribers over shared resources, whereas a Private Cloud deployment is designed for a single subscriber. 

Ensuring optimal performance and security for the different Public Cloud subscribers is paramount. While the underlying compute, storage, database, networking, domain name, and other resources are shared in a multi-subscriber deployment, this solution ensures each subscriber is isolated within this shared environment.

The database and application workloads are partitioned to ensure an appropriate level of data isolation and security. The Auth0 Public Cloud combines pooled partitioning (i.e., partitioning of data by subscriber identifier) and on-demand subscriber-specific workload instances. The architecture is refined continuously to eliminate “noisy neighbor” problems.

## Public Cloud Platform Infrastructure Architecture

### Tiers - Central, PoPs, and Spaces

Once again, the converged architecture has three tiers - Central, Points of Presence (PoPs), and Spaces. Besides these, the Edge network for DNS and DDoS protection, and Auth0 HQ based systems for analytics and operations complete the picture.

![Tiers - Central, PoPs, and Spaces](https://images.ctfassets.net/23aumh6u8s0i/5wVpjNsZNeyRnxGmRIHLwM/deee78839a615f2ebc1679b65eafc873/multi-subscriber-public-cloud-03.jpg)

It’s important to note that the solution has been designed with isolated fault domains; the control plane and data plane separation allows the central control plane to be offline/under maintenance without impacting customers’ authentication flows.

* **Central**: A globally unique component that contains the platform control plane and other centralized global infrastructure. The control plane manages the creation of Public Cloud environments and keeps them updated with continuous (daily) releases.
* **PoPs**: An intermediate point of infrastructure pinned to a specific cloud region (e.g., AWS us-east-1). The PoP hosts internal visibility tools and securely proxies messages from the central down to the regional Public Cloud environments.
* **Space**: The Public Cloud environment is located ‘beneath’ a PoP in a particular AWS region. These spaces have cross-region geo-failover capabilities to ensure resiliency.

### Aspects - control and runtime, scalability, datastores, networking, and reliability

When Auth0 took on the converged platform project, it started as a small team, initially focused on our single-subscriber (Private Cloud) offerings. This team comprised a cross-section of our platform teams with expertise ranging from Kubernetes to API, tooling, infrastructure, and datastores. They were focused on developing a proof of concept for the converged platform.

As we learned from our experiments — and as the converged platform evolved and matured — we launched single-subscriber environments for general availability. You may read more about this in a series of posts we shared outlining the technical, security, and architectural decisions we made:

* [A Technical Primer of Auth0’s New Private Cloud Platform](https://auth0.com/blog/a-technical-primer-of-auth0-s-new-private-cloud-platform/)
* [The Architect’s View of Auth0’s New Private Cloud Platform](https://auth0.com/blog/the-architect-s-view-of-auth0-s-new-private-cloud-platform/)
* [Securing Auth0's New Private Cloud Platform](https://auth0.com/blog/securing-auth0s-new-private-cloud-platform/)
* [Data Pipelines on Auth0’s New Private Cloud Platform](https://auth0.com/blog/data-pipelines-on-auth0-s-new-private-cloud-platform/)
* [How We Do Releases in Auth0’s New Private Platform](https://auth0.com/blog/how-we-do-releases-in-auth0-s-new-private-platform/)
* [Optimizing Cost and Performance of Auth0's Private Cloud](https://auth0.com/blog/optimizing-cost-and-performance-of-auth0s-private-cloud/)

We continued the logical progression with the converged platform, and adopted it for Public Cloud. Behind the scenes, the team continued to grow, and eventually, as we began to gain more and more traction from the converged platform, we organized the team into specialties to best support growth.

* **Runtime -** Heavily focused on our Terraform and Kubernetes layers. Ensuring that the core of the platform functions and that automation has the flexibility to meet the needs of product delivery teams.
* **Control -** Owners of our controlling API and platform CLI. The tooling that is used for operating the platform in all cases both normal and incidents.
* **Datastores -** Focused on our data storage technologies and interacting with our product delivery teams and the most efficient way to utilize the available stores.
* **Networking -** Owners of our edge technologies and supporting the myriad of ways in which our customers leverage the edge.
* **Sizing -** Partners with other internal teams to establish the performance characteristics of our offerings and additionally adds improvements to our platform including auto-scaling.
* **Services -** Owners of tooling and services leveraged by product delivery in their development. This includes abstractions that allow for easier access to the underlying platform.
* **Data -** Responsible for ensuring the data flow from the individual environments to the regional Points of Presence (PoPs) and beyond. This includes application logs for support as well as abstracted metrics. 

In order to get the technology behind a solution right, it's critical to fully enable the people behind the technology to co-create innovative solutions. At Okta, we cultivate a BLOC culture, which stands for “Builder, Learner, Owner, and Collaborator.” These values foster a high-functioning, well-oiled machinery that can take on big and small challenges effectively and efficiently.

![BLOC culture](https://images.ctfassets.net/23aumh6u8s0i/1uDGWPkHZzzH5CKHlrvEbJ/114d89fab2474e4cb2aec9272dea795f/multi-subscriber-public-cloud-04.png)

With the different team specializations, collaboration becomes all the more important. At Auth0, we value documentation not only for informing but also for decision-making. Our Engineering teams follow a simple mantra for collaboration: "Write. It. Down." We use Request For Comment (RFC) documents to record architectural designs and Decision Record documents to discuss and align ideas across teams. These documents also provide important context for new team members about what we're building and how we arrived at the decisions we've made and served as an important knowledge base as we began onboarding service owners to the new converged platform. These core tenets have become critical for sustaining the growth of the platform and introducing new capabilities over time.

### Reliability

The converged architecture provides a highly reliable and available solution leveraging not only the High Availability (HA) constructs across three Availability Zones within an AWS region, but also geo-failover capability between Active and Failover regions.

![Reliability](https://images.ctfassets.net/23aumh6u8s0i/2jbDdi3fCuZ1hm6D0qyWCI/ffe5decea1a0c72156636d38073d1975/multi-subscriber-public-cloud-05.png)

The geo-failover regions are always synchronized from the datastores’ perspective, with demanding RPO/RTO and 99.99% availability SLA targets. Once the failover decision is made, a fully automated process is initiated for the failover to take effect.

![Reliability](https://images.ctfassets.net/23aumh6u8s0i/5HQ6xBqVyquDFEK7ewW4kC/299cf5878d8cee63c706c633cc0b1abf/multi-subscriber-public-cloud-06.jpg)

In the event of a multi-region failure (an extremely rare event), we can perform an automated restore from the last backup.

The historical availability metrics are a testament to the robustness of the Auth0 solution. We continue to meet our targets in Private Cloud with the converged architecture and expect to continue meeting or exceeding these targets with Public Cloud deployments on this architecture.

![Private Cloud](https://images.ctfassets.net/23aumh6u8s0i/3xjskcZcaHUYxFuePah6r4/fdd40e7755462d852c29d16293a3bc2e/multi-subscriber-public-cloud-07.png)

## What Next?

Auth0’s Public Cloud offering continues to be boosted across different facets. The availability of Public Cloud across geographies will continue to expand. The launch of the UK Public Cloud region in April 2023 is the latest example, providing yet another regional point of presence for customers with data residency and latency sensitivity needs. Also, support for a Public Performance tier in H2 2023 caters to customers’ higher performance needs on Public Cloud.


We look forward to continuing to deliver new and enhanced customer identity capabilities, ease of use, platform resilience, scalability, and security in our Private Cloud and Public Cloud offerings through the new converged architecture.

Multi-Subscriber (Public Cloud) Deployment on Converged Architecture

johnathan-campos

Johnathan Campos is a Senior Product Marketing Manager at Okta focused on platform infrastructure and scalability. Johnathan is responsible for helping customers and partners understand the value of the Okta platform. Prior to joining Okta, Johnathan was a Senior Product Marketing Manager of the Observability Practitioner team at Splunk. During his time at Splunk, he helped practitioners understand the details of why Observability is the new necessary for native cloud deployments. When not focused on platform infrastructure and scalability, John enjoys tinkering in his garage, learning new things, spending time with family, and is an avid motorcycle fan.

Senior Product Marketing Manager, Global Platform Service

Johnathan Campos

With our new UK Region, we can enable local subscribers to achieve compliance and benefit from the quickest login response times available.

**TL DR;** The UK joins our available public cloud regions across EMEA to help with compliance requirements, data residency, and performance for our subscribers based in the UK.

We are thrilled to announce the launch of our newest region across our Customer Identity Cloud (Powered by Auth0) service in the UK. This new offering will provide a high-performance and secure way to manage customer identities while helping subscribers comply with UK data privacy regulations. As our first public cloud region on our converged platform architecture, this brings the latest cloud-native design and employs cutting-edge tools and fully automated operations to enhance business agility, developer productivity, scalability, reliability, and security for both our subscribers and platform teams. We encourage you to check out our blog series [here](https://auth0.com/blog/a-technical-primer-of-auth0-s-new-private-cloud-platform/) to learn more about our converged platform, and if you want to double-click even further on architecture, check out this blog [here](https://auth0.com/blog/the-architect-s-view-of-auth0-s-new-private-cloud-platform/) by my colleague, Leonardo Zanivan.

This public cloud region is also a major milestone in supporting UK customers with data residency needs. UK-based data centers will enable subscribers to store their data within the UK, helping ensure compliance with UK regulations for those that need it. This is particularly important for businesses that operate in heavily regulated industries, such as finance or healthcare, where data residency requirements can often be strict. To choose their preferred location, subscribers can easily select from a menu when creating their new tenant where the UK is now available. 

![UK](https://images.ctfassets.net/23aumh6u8s0i/7oWDzK3Dj7HVHwHlQ8XuoV/4f01fd4cb8bdaa926b07ab83c9009419/UK.png)

In today's constantly connected environment, where numerous users - from staff to customers - need access to mobile applications, websites, APIs, and portals from any location and device, we are proud to provide our subscribers with an IDaaS solution that delivers the essential scalability, reliability, and accessibility organizations require. Our goal has always been to simplify identity management for developers and IT professionals worldwide. 

With the new launch, users in and around the UK can experience reduced latency while logging in and solve many challenges faced with data privacy regulations. Don't hesitate to contact us for any questions or help regarding the newly launched UK Region. We are always here to help!

The UK Joins Existing EMEA Regions for Public Cloud Deployments!

auziros:jeana-tahnk

Jeana has been in the tech industry for 15+ years, both as a communications professional and writer. As Director of Global Communications at Auth0, she works with her internal team and external agencies to amplify the company's visibility worldwide and establish its leadership in the identity industry. When she is not working, she can most likely be found on a field watching one of her three kids playing sports, or cleaning up after her one-year-old retriever who chews everything.

Senior Director, Global Communications

Jeana Tahnk

Nearly zero downtime now standard for Enterprise customers



**BELLEVUE, Wash. – March 3, 2021 –** The [Auth0](https://auth0.com/) Identity Platform, a product unit within Okta, today announced its 99.99% availability service level agreement (SLA) guarantee for authentication services across all [Auth0 cloud](https://auth0.com/cloud) deployments&mdash;shared and dedicated environments. With private cloud deployments already supporting ‘four 9s’ availability, this SLA now extends to Auth0 public cloud deployments, making 99.99% a reality for all enterprise customers. 

Auth0 authenticates and authorizes more than four billion logins per month, demonstrating the scale at which its global customers operate. Whether authenticating consumers, business partners, or employees, reliability and uptime are crucial for every application&mdash;even more so for those with a continuously high volume of traffic. Any kind of downtime in high-demand applications can severely impact revenue, productivity, and brand perception. 

“We deeply understand how critical Auth0’s identity management platform is for the success of our customers’ businesses,” said Shiv Ramji, Chief Product Officer. “The 99.99% availability guarantee across all cloud deployments gives current, and future customers added reassurance of superior reliability and security, and an optimal end-user experience for all of their applications.” 

Auth0 continues to invest in improving the resilience of its platform and the reliability of its application services. While 99.99% is now a guarantee for customers on Auth0’s enterprise plan, platform uptime across Auth0’s U.S. public cloud environments in the past 12 months has been 99.999%+, or five 9s, as seen here: [https://status.auth0.com/](https://status.auth0.com/). 

More information about this reliability standard and Auth0’s cloud deployment options can be found here: [https://auth0.com/cloud](https://auth0.com/cloud). 

<include src="asides/AboutAuth0" />
### Media Contacts
Auth0 Global Communications<br />
[press@auth0.com](mailto:press@auth0.com)<br />

Matter for Auth0<br />
[auth0@matternow.com](mailto:auth0@matternow.com)<br />


"public-cloud"