One of the challenges of deploying CloudForms to manage a large environment is knowing how to tune it – what knobs to turn and dials to watch for.
Red Hat’s Systems Engineering team have just completed a document entitled “Deploying CloudForms at Scale”. This describes the architectural components that affect large-scale deployment, and details the monitoring, troubleshooting and scaling measures that can be taken to optimally tune each component.
The document is divided into three sections:
Part I – Architecture and Design
Architecture discusses the principal architectural components that influence scaling: appliances, server roles, workers and messages.
Regions and Zones discusses the considerations and options for region and zone design.
Database Sizing and Optimization presents some guidelines for sizing and optimizing the PostgreSQL database for larger-scale operations.
Part II – Component Scaling
Inventory Refresh discusses the mechanism of extracting and saving the inventory of objects – VMs, hosts or containers for example – from an external management system.
Capacity and Utilization explains how the three types of C&U worker interact to extract and process performance metrics from an external management system.
Automate describes the challenges of scaling Ruby-based automate workflows, and how to optimize automation methods for larger environments.
Provisioning focuses on virtual machine and instance provisioning, and the problems that sometimes need to be addressed when complex automation workflows interact with external enterprise tools.
Event Handling describes the three workers that combine to process events from external management systems, and how to scale them.
SmartState Analysis takes a look at some of the tuning options available to scale SmartState Analysis in larger environments.
Web User Interface discusses how to scale WebUI appliances behind load balancers.
Monitoring describes some of the in-built monitoring capabilities, and how to setup alerts to warn of problems such as worker restarts.
Part III – Putting it into Practice
Design Scenario takes the reader through a hypothetical design, scaling CloudForms Management Engine appliances in a region with several zones to manage a hybrid cloud.
The document is available here: https://access.redhat.com/documentation/en-us/reference_architectures/2017/html/deploying_cloudforms_at_scale/
Quelle: CloudForms
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