Kubernetes Native GitOps v5.4+ Production Standard

Kustomize Declarative Overlays Studio

Manage template-free declarative Kubernetes manifests. Generate base topologies, environment overlays, strategic merge patches, and content-hash generators with 9+ DevSecOps principles.

📦 GitHub: tp-kustomize

📦 Base Application Parameters

Application Name

Base Container Image

Target Overlay Environment

Overlay Replicas Count

🧩 Patches & Resource Tuning

CPU Limit (Production)

Memory Limit (Production)

9+ DevSecOps Governance Policies

Pin Immutable Image SHA256 Digest ConfigMapGenerator Hash Suffix (Auto-Rollout) Enforce SecurityContext (runAsNonRoot: true) Generate PodDisruptionBudget (minAvailable: 80%)

🛡️ 9+ DevSecOps Principles Baked Into This Studio

1. Pure declarative GitOps without templating drift • 2. Semgrep validation for Kustomize patches • 3. CycloneDX SBOM digest verification • 4. Hardened non-root user (65532) • 5. Kyverno validation on generated manifests • 6. eBPF network security labels • 7. ArgoCD native Kustomize sync • 8. OTel Prometheus annotations • 9. Zero-downtime rolling update patches.

overlays/production/kustomization.yaml

kustomize build overlays/production COMPILED OK

# Generated Output: kubectl apply -k overlays/production
apiVersion: apps/v1
kind: Deployment
metadata:
  name: prod-api-service
  namespace: production
  labels:
    app.kubernetes.io/name: api-service
    env: production
spec:
  replicas: 6  (patched from base: 2)
  template:
    spec:
      containers:
      - name: api-service
        image: ghcr.io/pradeep/api-service@sha256:7b91...
        resources:
          limits:
            cpu: 2000m
            memory: 4Gi

Kustomize Declarative Overlays Studio

📦 Base Application Parameters

🧩 Patches & Resource Tuning

⚙️ SRE Portal Backups & Settings