Introduction
Kubernetes (K8s) is the de facto standard for container orchestration, but writing correct YAML manifests, managing Helm charts, and planning deployments can be time-consuming. According to the CNCF Annual Survey 2023, 96% of organizations are using or evaluating Kubernetes, yet misconfigurations remain a top cause of production incidents. This article provides 10 ready-to-use prompts for generating Pods, Services, Ingresses, and Helm charts — saving you hours of boilerplate work.
Each prompt includes a specific task, a copy-paste template, and a concrete example. These prompts are designed for AI assistants like ChatGPT or Claude, but they work with any general-purpose LLM. No fluff, just actionable prompts.
1. Generate a Basic Pod Manifest
Task: Create a minimal Pod running Nginx with resource limits.
Prompt:
Generate a Kubernetes Pod manifest for an nginx container with:
- Image: nginx:1.25
- Container port 80
- Memory limit: 256Mi, CPU limit: 500m
- Memory request: 128Mi, CPU request: 250m
- Labels: app: web, tier: frontend
Example Output:
apiVersion: v1
kind: Pod
metadata:
name: nginx-pod
labels:
app: web
tier: frontend
spec:
containers:
- name: nginx
image: nginx:1.25
ports:
- containerPort: 80
resources:
requests:
memory: "128Mi"
cpu: "250m"
limits:
memory: "256Mi"
cpu: "500m"
Why it works: Resource limits prevent noisy-neighbor issues. The official Kubernetes documentation recommends setting both requests and limits for production workloads.
2. Create a Service (ClusterIP) for a Deployment
Task: Expose a deployment internally using ClusterIP.
Prompt:
Write a Kubernetes Service manifest of type ClusterIP for a deployment named "api-backend" that selects pods with label "app: api". The service should expose port 8080 and target port 3000.
Example Output:
apiVersion: v1
kind: Service
metadata:
name: api-backend-svc
spec:
type: ClusterIP
selector:
app: api
ports:
- protocol: TCP
port: 8080
targetPort: 3000
Real-world use: Internal services like databases or microservices often use ClusterIP. According to the Kubernetes documentation, ClusterIP is the default service type and is suitable for internal cluster communication.
3. Configure an Ingress with TLS
Task: Expose an HTTP service externally with HTTPS.
Prompt:
Generate a Kubernetes Ingress manifest for a service named "web-frontend" on port 80, with:
- Host: example.com
- TLS certificate from secret "tls-secret"
- Path-based routing: /api -> api-svc:8080
- Use nginx ingress controller annotations
Example Output:
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: example-ingress
annotations:
nginx.ingress.kubernetes.io/rewrite-target: /
spec:
tls:
- hosts:
- example.com
secretName: tls-secret
rules:
- host: example.com
http:
paths:
- path: /
pathType: Prefix
backend:
service:
name: web-frontend
port:
number: 80
- path: /api
pathType: Prefix
backend:
service:
name: api-svc
port:
number: 8080
Why it matters: Ingress controllers like NGINX handle TLS termination. The Kubernetes documentation states that Ingress is the most common way to expose HTTP services to the internet.
4. Write a Helm Chart Skeleton
Task: Generate a basic Helm chart structure with values.yaml and template.
Prompt:
Create a Helm chart skeleton for a web application with:
- Chart.yaml with apiVersion v2
- values.yaml with image.repository, image.tag, replicas, service.port
- templates/deployment.yaml using the values
- templates/service.yaml
- Do not include templates/NOTES.txt or helpers
Example Output:
# Chart.yaml
apiVersion: v2
name: my-web-app
description: A Helm chart for a web application
version: 0.1.0
appVersion: "1.0.0"
---
# values.yaml
replicaCount: 2
image:
repository: nginx
tag: "1.25"
service:
type: ClusterIP
port: 80
---
# templates/deployment.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
name: {{ include "my-web-app.fullname" . }}
spec:
replicas: {{ .Values.replicaCount }}
selector:
matchLabels:
app: {{ include "my-web-app.name" . }}
template:
metadata:
labels:
app: {{ include "my-web-app.name" . }}
spec:
containers:
- name: {{ .Chart.Name }}
image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
ports:
- containerPort: {{ .Values.service.port }}
---
# templates/service.yaml
apiVersion: v1
kind: Service
metadata:
name: {{ include "my-web-app.fullname" . }}
spec:
type: {{ .Values.service.type }}
selector:
app: {{ include "my-web-app.name" . }}
ports:
- port: {{ .Values.service.port }}
targetPort: {{ .Values.service.port }}
Hint: Helm official documentation recommends using helm create for a full skeleton, but this prompt is useful for custom setups.
5. Generate a ConfigMap and Mount as Volume
Task: Store configuration data and mount it into a Pod.
Prompt:
Create a ConfigMap named "app-config" with key "config.yaml" containing database connection settings (host: localhost, port: 5432). Then write a Deployment that mounts this ConfigMap as a volume at /etc/config.
Example Output:
apiVersion: v1
kind: ConfigMap
metadata:
name: app-config
data:
config.yaml: |
database:
host: localhost
port: 5432
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: app
template:
spec:
containers:
- name: app
image: myapp:latest
volumeMounts:
- name: config-volume
mountPath: /etc/config
volumes:
- name: config-volume
configMap:
name: app-config
Real-world case: Many companies like Spotify use ConfigMaps to separate configuration from code. The Kubernetes documentation recommends this pattern for 12-factor apps.
6. Create a PersistentVolumeClaim for Stateful Workloads
Task: Request persistent storage for a database.
Prompt:
Write a PersistentVolumeClaim manifest requesting 10Gi of storage with ReadWriteOnce access mode, storage class "ssd". Then write a Pod that mounts this PVC at /data.
Example Output:
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
name: data-pvc
spec:
accessModes:
- ReadWriteOnce
resources:
requests:
storage: 10Gi
storageClassName: ssd
---
apiVersion: v1
kind: Pod
metadata:
name: db-pod
spec:
containers:
- name: postgres
image: postgres:15
volumeMounts:
- mountPath: /data
name: storage
volumes:
- name: storage
persistentVolumeClaim:
claimName: data-pvc
Note: In production, use StatefulSets instead of Pods for databases. The official Kubernetes documentation recommends StatefulSets for stateful applications.
7. Generate a HorizontalPodAutoscaler
Task: Auto-scale a deployment based on CPU usage.
Prompt:
Create a HorizontalPodAutoscaler manifest for a deployment named "api-backend" with:
- minReplicas: 2
- maxReplicas: 10
- target CPU utilization: 70%
Example Output:
apiVersion: autoscaling/v2
kind: HorizontalPodAutoscaler
metadata:
name: api-backend-hpa
spec:
scaleTargetRef:
apiVersion: apps/v1
kind: Deployment
name: api-backend
minReplicas: 2
maxReplicas: 10
metrics:
- type: Resource
resource:
name: cpu
target:
type: Utilization
averageUtilization: 70
Why it matters: According to a 2024 report by Sysdig, 55% of Kubernetes clusters use HPA for auto-scaling. This prompt saves time and reduces human error.
8. Write a NetworkPolicy to Restrict Traffic
Task: Allow only ingress from a specific namespace.
Prompt:
Generate a NetworkPolicy that allows incoming traffic to pods with label "app: db" only from pods with label "app: api" in namespace "production". Deny all other ingress.
Example Output:
apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
name: db-network-policy
spec:
podSelector:
matchLabels:
app: db
policyTypes:
- Ingress
ingress:
- from:
- namespaceSelector:
matchLabels:
kubernetes.io/metadata.name: production
podSelector:
matchLabels:
app: api
Security insight: The Kubernetes documentation and CIS Benchmarks for Kubernetes recommend using NetworkPolicies to implement zero-trust networking.
9. Generate a CronJob for Scheduled Tasks
Task: Run a batch job every hour.
Prompt:
Write a CronJob manifest that runs every hour, executes a container with image "busybox" and command "echo Hello from Kubernetes!". Set restart policy to OnFailure.
Example Output:
apiVersion: batch/v1
kind: CronJob
metadata:
name: hello-cronjob
spec:
schedule: "0 * * * *"
jobTemplate:
spec:
template:
spec:
containers:
- name: hello
image: busybox
command:
- echo
- "Hello from Kubernetes!"
restartPolicy: OnFailure
Use case: CronJobs are ideal for backups, report generation, and data cleanup. The official Kubernetes documentation provides a full reference for cron expressions.
10. Create a Helm Values File for Multiple Environments
Task: Generate environment-specific values for dev, staging, and prod.
Prompt:
Create three Helm values files for a web application:
- values-dev.yaml: replicas=1, image.tag=latest, resources small
- values-staging.yaml: replicas=2, image.tag=staging, resources medium
- values-prod.yaml: replicas=5, image.tag=v1.0.0, resources large, HPA enabled
Example Output:
# values-dev.yaml
replicaCount: 1
image:
repository: myapp
tag: latest
resources:
requests:
memory: "128Mi"
cpu: "250m"
limits:
memory: "256Mi"
cpu: "500m"
---
# values-prod.yaml
replicaCount: 5
image:
repository: myapp
tag: v1.0.0
autoscaling:
enabled: true
minReplicas: 3
maxReplicas: 10
targetCPUUtilizationPercentage: 70
Best practice: The Helm documentation recommends using separate values files for each environment, combined with helm install -f values-prod.yaml.
Conclusion
These 10 prompts cover the most common Kubernetes tasks: from basic Pods to Helm charts and auto-scaling. By using them, you can reduce YAML writing time by up to 70% according to many developer reports. Remember to always adapt the output to your specific needs — these prompts are starting points, not final solutions.
For deeper learning, refer to the official Kubernetes documentation (kubernetes.io/docs) and the Helm documentation (helm.sh/docs). Try these prompts in your next deployment and see how much faster you can go from idea to running cluster.
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