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Download page Install the Private Synthetic Agent.
Install the Private Synthetic Agent
PSA supports these platforms:
- On-premises Controller >=21.4.1 with on-premises Synthetic Server >=21.4.1
- Chrome browser
- x86-64 architecture
Prerequisites
| Docker | Kubernetes | Minikube | OpenShift |
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Hardware Requirements
The following tables list the hardware components and their recommended configuration for Docker, Kubernetes, and Minikube environments:
Docker
| Component | Description | Minimum | Recommended | ||||||
|---|---|---|---|---|---|---|---|---|---|
Instance | CPU | RAM (GB) | Disk (GB) | Instance | CPU | RAM (GB) | Disk (GB) | ||
Heimdall | An orchestrator that connects to the Synthetic Cloud to fetch measurement jobs for the PSA cluster. | 1 | 1 | 1 | 1 | 2 | 2 | ||
| Apache Ignite | In memory cache | 1 | 0.5 | 0.5 | 2 | 1 | 1 | 1 | 20 |
Web Monitoring Measurement Container | A temporary or short-lived container auto-orchestrated by Heimdall to execute Web Monitoring measurements. | As per your requirement | 0.5 | 1 | As per your requirement | 1.25 | 2 | ||
Kubernetes
Component | Description | Minimum Configuration | Recommended Configuration | ||||
|---|---|---|---|---|---|---|---|
| # Instances | Per Instance | # Instances | Per Instance | ||||
| Heimdall | An orchestrator that connects to the Synthetic Cloud to fetch measurement jobs for the PSA cluster. | 1 | Processor: 2 vCPU Memory: 4 GB RAM | 2 | Processor: 3 vCPU Memory: 5 GB RAM | ||
| Apache Ignite | In memory cache | 1 | Processor: 0.5 vCPU Memory: 0.5 GB RAM | 2 | Processor: 1 vCPU Memory: 1 GB RAM | ||
| Measurement Container | A temporary or short-lived container auto-orchestrated by Heimdall to execute every measurement. (Web Monitoring PSA) The measurement container image can be customized to install additional libraries. | A temporary container instance is scheduled for every measurement based on the need. | Burst-able CPU-RAM Min: 0.5 vCPU, 1 GB RAM Max: 1.25 CPU, 2 GB RAM | A temporary container instance is scheduled for every measurement based on the need. | Burst-able CPU-RAM Min: 0.5 vCPU, 1 GB RAM Max: 1.25 CPU, 2 GB RAM | ||
Minikube
| Component | Description | Minimum | Recommended | ||||||
|---|---|---|---|---|---|---|---|---|---|
Instance | CPU | RAM (GB) | Disk (GB) | Instance | CPU | RAM (GB) | Disk (GB) | ||
Minikube | Minikube is a lightweight Kubernetes implementation that creates a VM on your local machine and deploys a simple cluster containing only one node. | 1 | 4 | 4 | 1 | 8 | 8 | ||
| Heimdall | An orchestrator that connects to the Synthetic Cloud to fetch measurement jobs for the PSA cluster. | 1 | 1 | 1 | 2 | 2 | 2 | ||
| Apache Ignite | In memory cache | 1 | 0.5 | 0.5 | 2 | 2 | 1 | 1 | 20 |
Web Monitoring Measurement Container | A temporary or short-lived container auto-orchestrated by Heimdall to execute Web Monitoring measurements. | As per your requirement | 0.5 | 1 | As per your requirement | 1.25 | 2 | ||
Number of Measurement Containers
You can calculate the number of required concurrent containers using this formula:
( (Number of Jobs) x (Average job duration in minutes) / (Frequency in minutes))
For example, the number of containers required for 10 jobs with an average duration of 30 seconds per job executed at 5-minute interval needs:
(10 x (30/60) ) / 5 ) = 1 container
Concurrent Measurements
The Kubernetes cluster specifications determine the number of concurrent measurements that can be executed. Any submission of jobs beyond the infra limits leads to the queuing of jobs in the Kubernetes cluster. To scale the number of concurrent jobs automatically, enable cluster auto-scaler. K8S auto-scaler functionality depends on the cloud or the managed service provider.
To set up PSA in any of these environments, see: