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GKE High Availability & Autoscaling

GKE High Availability & Autoscaling

Engineering documentation for the MintDeals GKE cluster HA design. Covers multi-zone autoscaling, PodDisruptionBudgets, regional persistent disks, PriorityClasses, capacity buffers, HPA tuning, and the PVC migration runbook. Written for DevOps engineers and on-call responders.

Responsible Juan Palomino
Last Update 04/08/2026
Completion Time 2 days 11 hours
Members 1
GKE High Availability & Autoscaling

PVC Migration Procedure

Architecture Overview
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GKE High Availability & Autoscaling
Cluster Architecture
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GKE High Availability & Autoscaling
Why HA Matters for This Cluster
Node Pool & Cluster Autoscaling
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GKE High Availability & Autoscaling
Multi-Zone Node Pool
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GKE High Availability & Autoscaling
Autoscaler Cold-Start & Capacity Buffers
Pod Disruption Budgets
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GKE High Availability & Autoscaling
PDB Design for Multi-Replica vs Single-Replica
Storage: Regional Persistent Disks
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GKE High Availability & Autoscaling
PVC Migration Procedure
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GKE High Availability & Autoscaling
Why standard-rwo Breaks Multi-Zone HA
Workload Priority & Scheduling
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GKE High Availability & Autoscaling
PriorityClasses: Protecting Critical Pods
HPA & Peak Traffic Scaling
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GKE High Availability & Autoscaling
Odoo HPA Configuration
Maintenance & Upgrades
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GKE High Availability & Autoscaling
Maintenance Windows & Node Upgrades
PVC Migration Runbook
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GKE High Availability & Autoscaling
Step-by-Step PVC Migration
Monitoring & Troubleshooting
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GKE High Availability & Autoscaling
Health Checks & Common Issues
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GKE High Availability & Autoscaling
References & Further Reading