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Harness Self-Managed Enterprise Edition reference architectures

Harness Self-Managed Enterprise Edition brings a robust and flexible software delivery platform to organizations seeking control over their deployment infrastructure. This topic describes user profiles and reference architectures, outlining the key components and best practices for implementing Harness Self-Managed Enterprise Edition. Organizations can optimize their software delivery platform with these architectures, ensuring reliability, scalability, and consistent software deployments.

User profiles​

There are four user profiles for Harness Self-Managed Enterprise Edition.

  • Demo: This profile for up to 10 users is for demonstration purposes to allow you to test Harness Self-Managed Enterprise Edition before onboarding. This profile enables you to run up to four simultaneous executions across two modules, CI and CD.
  • Small: This profile for up to 200 users requires a licensed version of Harness Self-Managed Enterprise Edition. This profile enables you to run up to 100 simultaneous executions across two modules, CI and CD.
  • Medium: This profile for up to 1000 users requires a licensed version of Harness Self-Managed Enterprise Edition. This profile enables you to run up to 500 simultaneous executions across two modules, CI and CD.
  • Large: This profile for up to 3000 users requires a licensed version of Harness Self-Managed Enterprise Edition. This profile enables you to run up to 1000 simultaneous executions across two modules, CI and CD.

Profile size and module execution details​

Size# of usersParallel executions (CD)Parallel executions (CI)
DemoUp to 1022
SmallUp to 2005050
MediumUp to 1000250250
LargeUp to 3000500500

Demo user requirements​

Core CPU and memory requirements depend on the modules you use for demo purposes. CI and CD require a minimum of 3 core CPUs and 14-Gi of memory.

Override files​

Override files are available in the Harness Helm chart repo.

  • Demo: override-demo.yaml
  • Small: override-small.yaml
  • Medium: override-medium.yaml
  • Large: override-large.yaml

Example installation and upgrade commands​

You can use the following commands to upgrade/install via Helm for each profile. For complete Helm installation instructions, go to Install using Helm.

Demo​
helm install my-release harness/harness-prod -n <namespace> -f your-override.yaml -f override-demo.yaml
helm upgrade my-release harness/harness-prod -n <namespace> -f your-override -f override-demo.yaml
Small​
helm install my-release harness/harness-prod -n <namespace> -f your-override -f override-small.yaml
helm upgrade my-release harness/harness-prod -n <namespace> -f your-override -f override-small.yaml

Medium​

helm install my-release harness/harness-prod -n <namespace> -f your-override -f override-medium.yaml
helm upgrade my-release harness/harness-prod -n <namespace> -f your-override -f override-medium.yaml
Large​
helm install my-release harness/harness-prod -n <namespace> -f your-override -f override-large.yaml
helm upgrade my-release harness/harness-prod -n <namespace> -f your-override -f override-large.yaml

Customer reference architectures​

Reference architectures enable organizations to fully utilize Harness Self-Managed Enterprise Edition for a customized, secure, and scalable continuous delivery process.

These architectures aim to simplify the process of setting up Harness Self-Managed Enterprise Edition. However, the determination of the architecture that best suits your organization's specific requirements can be difficult. Careful consideration and evaluation of the requirements are necessary to determine the optimal reference architecture for the intended setup.

Scalability and performance​

Harness Self-Managed Enterprise Edition is designed to scale with your organization's growing needs. This reference architecture details strategies to ensure optimal performance and scalability, allowing you to handle varying workloads and deploy applications efficiently.

High availability and fault tolerance​

Achieving high availability and fault tolerance is paramount for mission-critical applications. The reference architecture outlines deployment patterns and configurations to ensure continuous availability, even in the face of unexpected failures.

Customization and extensibility​

Recognizing that each organization has unique requirements, this reference architecture explores customization options and extensibility features. It empowers users to tailor the Harness platform to specific workflows and integrations, ensuring a personalized and efficient continuous delivery pipeline.

The demo mode reference architecture is designed for demonstration and learning purposes and includes an in-cluster database, but doesn't include backup and restore.

Benefits of the reference architectures​

  • Best practices guidance: Leverage industry standards and Harness's expertise to improve your workflows.

  • Optimized performance: Implement configurations and optimizations that ensure optimal performance, enabling your organization to deploy applications quickly and reliably.

  • Ease of maintenance: Set up a robust architecture that minimizes downtime and simplifies maintenance tasks, ensuring an efficient environment.