01
Define availability targets and tolerated degradation
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Docker 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
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03
Classify planned maintenance and unplanned failure scenarios
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Practical guidance
Architecture and design decisions
01
Apply load balancing, clustering, zone redundancy and quorum patterns
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02
Design stateless and stateful component behaviour
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03
Select health probes, failover policies and consistency trade-offs
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Practical guidance
Security, cost and operating model
01
Secure redundant paths and maintain configuration consistency
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02
Compare availability benefit with capacity and complexity costs
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03
Define patching, certificate and lifecycle procedures across replicas
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Practical guidance
Validation, resilience and evolution
01
Inject controlled component and zone failures
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02
Validate detection, failover, recovery and data integrity
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03
Review whether complexity remains justified by service objectives
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