DevOps & OpenStack Case Studies

Problem

• Horizon returning 504 Gateway Timeout
• Volume operations timing out
• RPC delays between services

Environment

• Multi-controller OpenStack cloud
• Kolla-Ansible
• Ubuntu
• RabbitMQ
• MariaDB
• HAProxy

Investigation

• Reviewed HAProxy configuration and timeout/health-check settings
• Traced the API request flow across services
• Validated RabbitMQ queues and consumers
• Identified a scheduler bottleneck
• Reviewed service health across the controllers

Solution

Produced a step-by-step remediation plan — HAProxy timeout and health-check tuning, RabbitMQ queue remediation, and scheduler capacity adjustments — captured as a repeatable incident runbook the team could re-run on the next event.

Representative outcome

• Faster root cause identification
• Reduced troubleshooting time
• Improved operational documentation
• A repeatable incident workflow

Problem

• Large Terraform repository
• Multiple modules
• Inconsistent naming
• Duplicate resources
• Security concerns

Environment

• Large multi-module Terraform repository
• Remote state backend
• Multiple cloud environments
• CI/CD-driven plans

Investigation

• AI-assisted code review across the modules
• Best-practice gap analysis
• Identified duplicate and drift-prone resources
• Security review of state and secrets handling

Solution

Delivered module consolidation and naming standardization, a security review of state and secrets handling, and documentation improvements — a prioritized refactor path (moved/import) the team could apply incrementally.

Representative outcome

• Cleaner infrastructure code
• Easier maintenance
• Reduced configuration drift
• Better onboarding documentation

Problem

• Slow deployments
• Configuration drift
• Numerous Helm releases
• Alert fatigue

Environment

• Kubernetes cluster
• Numerous Helm releases
• Prometheus monitoring
• GitOps-managed workloads

Investigation

• Cluster review
• Manifest validation
• Prometheus rule analysis
• GitOps recommendations

Solution

Standardized deployment workflows, validated manifests and Helm releases, and refined Prometheus alert rules to cut noise — with GitOps recommendations to hold the line on configuration drift.

Representative outcome

• Improved deployment consistency
• Simplified monitoring
• Better operational visibility
• Standardized workflows