Dev
Mock Kubernetes Manifest Generator
Writing a Kubernetes Deployment manifest from memory is slow and error-prone — the YAML nesting is deep, the selector must match the template labels exactly, and a single indentation mistake breaks the parse. This tool generates a sample Deployment manifest in seconds, using realistic app names (web, api, worker, cache, auth), common container images (nginx, node, redis, python, postgres), replica counts of 1–3, and ports drawn from real defaults. There are no inputs — click Generate for a new sample. The output covers apiVersion, kind, metadata with labels, and the full spec: replicas, selector, template (with matching labels), and a containers entry with an image and a containerPort. Indentation follows YAML conventions exactly. Use the output to study the structure, test a manifest parser, or scaffold a new deployment. Before applying anything to a real cluster, replace the app name, container image, port, and replica count with your own values. The generated manifest does not include resource limits, environment variables, or health probes — those are important additions for production workloads.
How to use
- Choose your options above
- Click Generate
- Copy your result
Detailed instructions
- Click Generate to produce a manifest.
- Copy the YAML into a file or doc.
- Adapt the names and image to your app.
- Apply only after tailoring it.
Use Cases
- •Learning Kubernetes manifests
- •Documenting a deployment
- •Demoing manifest structure
- •Seeding example YAML
- •Testing a manifest parser
Tips
- →Mind YAML's significant indentation.
- →The selector must match template labels.
- →Adapt the image and ports to your app.
- →Use it to learn the structure.
FAQ
what does the generated manifest include
A complete Deployment resource with apiVersion: apps/v1, kind: Deployment, metadata with name and labels, and a spec containing replicas, a matchLabels selector, and a pod template with a single container — image and containerPort included. It does not include resource limits, probes, or environment variables.
is the generated YAML valid and ready to apply
The YAML structure and indentation are valid, and the selector correctly matches the template labels. However, the image names and ports are generic examples. Replace them with your own values and add resource limits and health probes before running kubectl apply on a real cluster.
why must the selector match the template labels
Kubernetes uses the selector to identify which pods belong to the Deployment. If the matchLabels in the selector do not match the labels on the pod template, the Deployment controller cannot find its pods, and the resource will not work. The generated manifest gets this right, so it illustrates the correct relationship.
what resource types other than Deployment can I generate here
This generator only produces Deployment manifests. It does not generate Service, Ingress, ConfigMap, or other resource kinds. Use it to study and scaffold Deployments specifically, then write or look up the other resource types separately.
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