# Operations Guide > **Last Updated**: September 12, 2026 This section provides a production operations guide for EKS Auto Mode environments. It covers infrastructure provisioning with Terraform, CI/CD pipelines, GitOps-based deployment, scaling, observability, resource optimization, and upgrades. --- ## Target Audience - **Platform Engineers** building production environments with EKS Auto Mode - **Infrastructure Engineers** operating Terraform/Terragrunt-based IaC - **DevOps Engineers** building CI/CD pipelines with GitLab CI and ArgoCD - **SREs** operating Prometheus, Grafana, and Loki observability stacks --- ## Prerequisites Before starting this operations guide, ensure familiarity with: - [Getting Started with EKS Auto Mode](https://www.atomai.click/kubernetes-docs/llms/en/eks-auto-mode/01-getting-started.md) - Terraform basics (resources, modules, state management) - [Kubernetes Core Concepts](https://www.atomai.click/kubernetes-docs/llms/en/core/01-cluster-architecture.md) - kubectl and Helm CLI experience --- ## Table of Contents | # | Document | Key Topics | |---|----------|------------| | 01 | [Terraform 3-Layer Infrastructure Setup](https://www.atomai.click/kubernetes-docs/llms/en/ops/01-infrastructure-setup.md) | VPC, EKS Auto Mode, Pod Identity with 3-Layer Terraform | | 02 | [NLB Weighted Routing and Blue/Green](https://www.atomai.click/kubernetes-docs/llms/en/ops/02-infrastructure-advanced.md) | Dual cluster architecture, NLB weights, DNS routing | | 03 | [CI Pipelines](https://www.atomai.click/kubernetes-docs/llms/en/ops/03-ci-pipelines.md) | ECR, GitLab Runner, GitHub ARC, multi-platform builds | | 04 | [ArgoCD Multi-Cluster](https://www.atomai.click/kubernetes-docs/llms/en/ops/04-gitops-multi-cluster.md) | Hub-spoke, ApplicationSet, IAM Identity Center SSO | | 05 | [GitOps Automation](https://www.atomai.click/kubernetes-docs/llms/en/ops/05-gitops-automation.md) | Atlantis, FluxCD, Terraform Cloud, AIOps | | 06 | [Scaling Strategies](https://www.atomai.click/kubernetes-docs/llms/en/ops/06-scaling-strategies.md) | HPA custom metrics, KEDA, VPA, Spot utilization | | 07 | [Operational Alert Configuration](https://www.atomai.click/kubernetes-docs/llms/en/ops/07-observability-alerts.md) | Network/CPU/Disk/Auto Mode node termination alerts | | 08 | [Observability Analysis](https://www.atomai.click/kubernetes-docs/llms/en/ops/08-observability-analysis.md) | Logs/Metrics/Traces correlation, PromQL, LogQL, TraceQL | | 09 | [Observability Stack Operations](https://www.atomai.click/kubernetes-docs/llms/en/ops/09-observability-stack.md) | Loki, Tempo, Prometheus/AMP installation and operations | | 10 | [Resource Optimization](https://www.atomai.click/kubernetes-docs/llms/en/ops/10-resource-optimization.md) | Requests/Limits, JVM tuning, framework-specific guide | | 11 | [EKS Upgrades](https://www.atomai.click/kubernetes-docs/llms/en/ops/11-upgrade-operations.md) | Staged Auto Mode upgrade, blue/green strategy | | 12 | [Event Capacity Planning](https://www.atomai.click/kubernetes-docs/llms/en/ops/12-event-capacity-planning.md) | Traffic events, capacity and recovery planning | | 13 | [FinOps Cost Management](https://www.atomai.click/kubernetes-docs/llms/en/ops/13-finops-cost-platform.md) | Cost visibility, allocation, optimization | | 14 | [Tekton Pipelines](https://www.atomai.click/kubernetes-docs/llms/en/ops/14-tekton-pipelines.md) | Kubernetes-native CI pipelines | | 15 | [Zonal Cluster Operations](https://www.atomai.click/kubernetes-docs/llms/en/ops/15-zonal-operations-guide.md) | LB weight shifting and TargetGroupBinding, native rollback, Kafka/Redis/Aurora AZ-affine reads | | 16 | [Troubleshooting Playbook](https://www.atomai.click/kubernetes-docs/llms/en/ops/16-troubleshooting-playbook.md) | Symptom → diagnosis → cause → fix: Pending/ImagePull/CrashLoop/NotReady/PVC, IRSA, VPC CNI, Karpenter, kubectl cheat sheet | | 17 | [EKS Spot Production Experiments](https://www.atomai.click/kubernetes-docs/llms/en/ops/17-spot-production-experiments.md) | Interruption, concurrent reclamation, fallback, result records, SLO/cost assessment, rollback | --- ## Learning Path ### Recommended Order 1. **Infrastructure** (01-02): Provision VPC/EKS with Terraform 2. **CI/CD** (03-05): Build pipelines and GitOps deployment 3. **Scaling** (06): Establish scaling strategies for workloads 4. **Observability** (07-09): Build monitoring, alerting, and analysis systems 5. **Optimization** (10): Resource efficiency and cost optimization 6. **Upgrades** (11): Validate availability and recovery procedures 7. **Specialized operations** (12–16): Capacity events, FinOps, Tekton, zonal operations, and troubleshooting ### By Role | Role | Priority Documents | |------|-------------------| | Platform Engineer | 01, 02, 04, 11 | | DevOps Engineer | 03, 04, 05 | | SRE | 06, 07, 08, 09, 10 | | Infrastructure Engineer | 01, 02, 11 | --- ## Relationship with Existing Documentation This operations guide complements existing concept documentation with practical, code-focused guides: ### Concept Documentation - [EKS Auto Mode](https://www.atomai.click/kubernetes-docs/llms/en/eks-auto-mode/README.md) - Architecture and concepts - [ArgoCD](https://www.atomai.click/kubernetes-docs/llms/en/gitops/argocd/README.md) - GitOps fundamentals - [KEDA](https://www.atomai.click/kubernetes-docs/llms/en/autoscaling/01-keda.md) - Event-driven autoscaling concepts - [Karpenter](https://www.atomai.click/kubernetes-docs/llms/en/autoscaling/02-karpenter.md) - Node provisioning concepts ### This Operations Guide - Terraform HCL code for production infrastructure - YAML manifests for Kubernetes resources - PromQL/LogQL queries for observability - Bash scripts for operational automation - Step-by-step procedures with validation --- ## Quick Reference ### Common Operations | Task | Document | Section | |------|----------|---------| | Create new EKS cluster | [01-infrastructure-setup](https://www.atomai.click/kubernetes-docs/llms/en/ops/01-infrastructure-setup.md) | 3-Layer Terraform | | Add new application to ArgoCD | [04-gitops-multi-cluster](https://www.atomai.click/kubernetes-docs/llms/en/ops/04-gitops-multi-cluster.md) | ApplicationSet | | Configure HPA with custom metrics | [06-scaling-strategies](https://www.atomai.click/kubernetes-docs/llms/en/ops/06-scaling-strategies.md) | Custom Metrics | | Set up alerting for new service | [07-observability-alerts](https://www.atomai.click/kubernetes-docs/llms/en/ops/07-observability-alerts.md) | Alert Rules | | Upgrade EKS version | [11-upgrade-operations](https://www.atomai.click/kubernetes-docs/llms/en/ops/11-upgrade-operations.md) | Auto Mode Upgrade | ### Emergency Procedures | Scenario | Document | Section | |----------|----------|---------| | Rollback deployment | [04-gitops-multi-cluster](https://www.atomai.click/kubernetes-docs/llms/en/ops/04-gitops-multi-cluster.md) | Rollback | | Rollback EKS upgrade | [11-upgrade-operations](https://www.atomai.click/kubernetes-docs/llms/en/ops/11-upgrade-operations.md) | Native rollback eligibility or blue/green failback | | Adjust capacity after checking demand and availability | [06-scaling-strategies](https://www.atomai.click/kubernetes-docs/llms/en/ops/06-scaling-strategies.md) | Capacity and scaling policy | | Debug failing pods | [16-troubleshooting-playbook](https://www.atomai.click/kubernetes-docs/llms/en/ops/16-troubleshooting-playbook.md) | Symptom-based diagnosis | --- ## Contributing When adding new operational procedures: 1. Include practical code examples (Terraform, YAML, bash) 2. Provide validation steps for each procedure 3. Document rollback procedures where applicable 4. Add relevant PromQL/LogQL queries for monitoring 5. Cross-reference related concept documentation