The Ultimate Pre-Deployment Checklist for Production Kubernetes Workloads Deploying to production without a baseline standard is a recipe for silent failures, resource starvation, and unexpected cloud bills. Bookmark this checklist and run through it for every new workload you deploy. 1. Resource Requests & Limits Define CPU/Memory Requests: Ensure the scheduler knows where to place your pods. Set Memory Limits: Protect nodes from Out-Of-Memory (OOM) kills caused by runaway processes. Avoid Strict CPU Limits (if throttling occurs): Benchmark your workload under load before hard-capping CPU. 2. Health Probes Startup Probe: Configured for slow-booting applications to prevent premature restarts. Liveness Probe: Configured to restart pods if they deadlock or hit an unrecoverable state. Readiness Probe: Configured so traffic only routes to pods ready to handle requests. 3. Reliability & Availability Replicas > 1: Run at least 2–3 instances across multiple Availability Zones (AZs). PodDisruptionBudget (PDB): Set up PDBs so cluster maintenance or node drains don't drop your available pods to zero. Anti-Affinity Rules: Distribute pods across separate nodes or zones. 4. Security Baseline Non-Root Execution: Set runAsNonRoot: true in your securityContext. Read-Only Root Filesystem: Enforce readOnlyRootFilesystem: true where possible. Network Policies: Restrict ingress and egress traffic to only required dependencies. 5. Configuration & Secrets Externalized Configs: Store environment variables in ConfigMaps, not hardcoded image tags. Encrypted Secrets: Manage sensitive credentials via External Secrets Operator or HashiCorp Vault. 6. Observability Structured Logging: Output JSON logs to standard output/error (stdout/stderr). Metrics Endpoint: Expose a /metrics path for Prometheus scrapers. Key Takeaways Predictability over intuition: Reliability isn't luck; it's enforcing guardrails at deployment time. Fail gracefully: Probes and PodDisruptionBudgets ensure your system self-heals during node failures or cluster upgrades. Security is shift-left: Setting security contexts early prevents container breakout risks down the road. CTA 🚀 Level up your cloud skills! Join the Techawks Cloud, DevOps & Open Source community to get expert architecture guides, hands-on tutorials, and real-world infrastructure strategies.