Step-by-step troubleshooting guides with ready-to-use commands.
Fix vLLM inference pods crashing with CUDA OutOfMemoryError on EKS. Diagnose KV cache overflow, tune memory parameters, or switch to quantised model weights.
Fix OpenSearch Serverless vector search latency degradation caused by OCU starvation. Diagnose saturation, tune k-NN parameters, and scale OCUs.
Fix Bedrock InvokeModel failures with ThrottlingException or ModelStreamErrorException by diagnosing quota limits, implementing backoff, and requesting increases.
AWS environment security audit procedure, from IAM review, through network configuration, to encryption and monitoring. A ready-to-use checklist for recurring assessments.
Resolve GKE node pool stuck in PROVISIONING state caused by quota exhaustion, insufficient pod IP ranges, or machine type unavailability in the target zone.
Deploy Cloudflare Tunnel (cloudflared) as a Kubernetes Deployment to expose internal ClusterIP services without opening inbound ports. Works identically on EKS, GKE, AKS, and on-prem.
Diagnose and fix ALB 502 Bad Gateway errors caused by target group health check failures - security groups, health check paths, timeouts, and deploy draining.
Complete migration guide from deprecated aad-pod-identity to AKS Workload Identity Federation using OIDC issuer, managed identities, and federated credentials.
Fix a stuck Terraform state lock when terraform plan or apply fails with Error acquiring the state lock after a crashed or timed-out operation.
Fix ECS Fargate tasks that keep stopping with Essential container exited, OutOfMemoryError, or CannotPullContainerError by identifying the root cause in stopped task metadata and CloudWatch logs.
Fix RDS PostgreSQL connection limit errors by identifying idle connections, terminating leaked sessions, and implementing connection pooling with RDS Proxy or PgBouncer.
Quick reference mapping AWS container services (ECS, Fargate, ECR, App Runner) to their Azure equivalents (Container Apps, ACI, ACR, Web App for Containers) with guidance on when each applies.
Run a production Supabase stack using plain Docker Compose without the CLI. Full setup with custom registries, environment variables, and inter-service networking.
Fix asymmetric routing and traffic hairpinning when running multiple AWS Site-to-Site VPN connections in parallel to GCP Cloud VPN.
Fix supabase start failing with 403 Forbidden from public.ecr.aws by overriding the image registry to Docker Hub, GHCR, or your own private registry.
Fix AWS Site-to-Site VPN throughput degradation caused by MTU fragmentation on IPsec tunnels connecting to GCP Cloud VPN.
Fix GCP Cross-Cloud Interconnect BGP session flapping caused by route advertisement limits, ASN conflicts, or hold timer mismatches.
Diagnose and fix AWS Site-to-Site VPN tunnel DOWN caused by IKE Phase 1/2 negotiation failure when connecting to GCP Cloud VPN.
Restore a BGP session over an Atman cross-connect when peering drops due to physical layer faults, MTU issues, or hold timer expiry.
Resolve PHP module conflicts in cPanel EasyApache4 when package dependencies clash during Apache rebuilds, causing build failures or broken PHP installations.
Rebuild an mdadm software RAID array on a Hetzner dedicated server after disk replacement using rescue mode, partitioning, and array reassembly.
Speed up Ceph recovery in Proxmox when an OSD is marked out and PG backfill crawls despite available disk bandwidth.
Fix the operation deadlock in ArgoCD when a stuck operation blocks all sync attempts with another operation is already in progress.
Fix the infinite OutOfSync loop in ArgoCD caused by the field ownership conflict between HPA and declarative spec.replicas management.
Diagnose and fix the etcdserver: request is too large error in ArgoCD when the Application CRD exceeds the 1 MB etcd object size limit.