01
Define availability targets and tolerated degradation
Apply this point to a real Terraform Academy design, delivery or operational scenario and record the evidence used to validate the outcome.
Terraform Academy · Architecture Explorer
High Availability Architecture
Design services to tolerate component, zone and regional failures while preserving operational simplicity.
Objective: Align redundancy and failure handling with measurable service availability requirements.
Practical guidance
Business context and requirements
02
Identify single points of failure and correlated dependencies
Apply this point to a real Terraform Academy design, delivery or operational scenario and record the evidence used to validate the outcome.
03
Classify planned maintenance and unplanned failure scenarios
Apply this point to a real Terraform Academy design, delivery or operational scenario and record the evidence used to validate the outcome.
Practical guidance
Architecture and design decisions
01
Apply load balancing, clustering, zone redundancy and quorum patterns
Apply this point to a real Terraform Academy design, delivery or operational scenario and record the evidence used to validate the outcome.
02
Design stateless and stateful component behaviour
Apply this point to a real Terraform Academy design, delivery or operational scenario and record the evidence used to validate the outcome.
03
Select health probes, failover policies and consistency trade-offs
Apply this point to a real Terraform Academy design, delivery or operational scenario and record the evidence used to validate the outcome.
Practical guidance
Security, cost and operating model
01
Secure redundant paths and maintain configuration consistency
Apply this point to a real Terraform Academy design, delivery or operational scenario and record the evidence used to validate the outcome.
02
Compare availability benefit with capacity and complexity costs
Apply this point to a real Terraform Academy design, delivery or operational scenario and record the evidence used to validate the outcome.
03
Define patching, certificate and lifecycle procedures across replicas
Apply this point to a real Terraform Academy design, delivery or operational scenario and record the evidence used to validate the outcome.
Practical guidance
Validation, resilience and evolution
01
Inject controlled component and zone failures
Apply this point to a real Terraform Academy design, delivery or operational scenario and record the evidence used to validate the outcome.
02
Validate detection, failover, recovery and data integrity
Apply this point to a real Terraform Academy design, delivery or operational scenario and record the evidence used to validate the outcome.
03
Review whether complexity remains justified by service objectives
Apply this point to a real Terraform Academy design, delivery or operational scenario and record the evidence used to validate the outcome.