Concept to deploy to a cluster:

1. Write Kubernetes config files (YAML)
2. Tell Kubernetes:
   • What image to run
   • How many containers
   • How traffic flows
3. Kubernetes:
   • Creates containers
   • Distributes them across nodes
   • Keeps them running

Change from docker-compose.yml to Kubernetes:

• 1 compose service ≠ 1 YAML file
• 1 compose service = 2–4 Kubernetes resources

If compose.yml containers:

To map in Kurbernetes, need these:

Namespace
├── backend: Deployment + Service
├── postgres: Stateful Deployment + PVC + Service
├── redis: Deployment + Service
├── kafka + zookeeper (Stateful-ish)
├── prometheus: Deployment + PVC + Service + Configmap (prometheus.yml)
├── grafana: Deployment + PVC + Service + ConfigMap (datasource.yml)
├── ConfigMaps
├── Secrets

Code Example: