Docker Compose to Kubernetes
Convert docker-compose.yml to Kubernetes Deployment, Service, ConfigMap, and PVC manifests.
Free online Docker Compose to Kubernetes converter. Paste a docker-compose.yml and instantly get Kubernetes manifests: Deployments, Services, ConfigMaps, Secrets, and PersistentVolumeClaims. Automatically detects sensitive environment variables and separates them into Secrets. Supports custom namespaces, replica counts, and image registry prefixes. Runs entirely in your browser — no data is sent to a server.
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Tags: docker, kubernetes, k8s, compose, devops, converter, yaml
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How to Docker Compose to Kubernetes Online
Paste your docker-compose.yml content into the input panel on the left.
Configure conversion options: target namespace, default replica count, and optional image registry prefix.
Click "Convert" or press ⌘↵ to generate the Kubernetes manifests.
Review the generated resources across the output tabs — Deployments, Services, ConfigMaps, Secrets, and PVCs.
Copy individual resources with ⌘⇧C or download all manifests as a single multi-document YAML file.
Docker Compose to Kubernetes Features
Supports Docker Compose file formats v2 and v3 including the latest Compose Specification
Generates Kubernetes Deployment manifests with configurable replica counts and resource names
Creates Service manifests from exposed ports — ClusterIP for internal ports, LoadBalancer for host-bound ports
Extracts environment variables into ConfigMap resources for non-sensitive configuration
Detects potential secrets (keys containing PASSWORD, SECRET, KEY, TOKEN) and generates separate Secret manifests
Maps named volumes to PersistentVolumeClaim resources with configurable storage class
Supports custom Kubernetes namespace injection into all generated resource metadata
Optional image registry prefix prepended to all image references for private registries
Outputs valid multi-document YAML with `---` separators, ready for `kubectl apply -f`
Runs entirely in your browser — your Compose files are never uploaded to any server
Keyboard shortcut ⌘↵ to convert, ⌘⇧C to copy output
AI explanations explain generated Kubernetes resource choices and configuration options
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Related Standards & RFC Specifications
All StandardsDocker Compose is a declarative tool for defining and running multi-container Docker applications using standardized YAML service definitions.
A Dockerfile is a declarative text document containing sequential instructions used by the Docker daemon or BuildKit engine to automate container image builds.
The Open Container Initiative (OCI) is an open governance project that defines standardized specifications for container runtime formats and container image formats.
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Example Input & Output
Sample ReferenceInteractive Example: Docker Compose to Kubernetes in ActionShow example
Sample Input (text)
version: '3.8'
services:
web:
image: nginx:alpine
ports:
- "80:80"
environment:
NODE_ENV: production
API_URL: http://api:3000
depends_on:
- db
db:
image: postgres:15
environment:
POSTGRES_DB: myapp
POSTGRES_USER: user
POSTGRES_PASSWORD: secret
volumes:
- pgdata:/var/lib/postgresql/data
volumes:
pgdata:Sample Output
[Processed output for Docker Compose to Kubernetes]
Input transformed successfully using docker compose to kubernetes, docker-compose to k8s, convert docker compose to kubernetes.What happened:
Convert docker-compose.yml to Kubernetes Deployment, Service, ConfigMap, and PVC manifests.
Frequently Asked Questions
- Which Docker Compose versions are supported?
- The converter supports Docker Compose v2, v3, and the current Compose Specification (version-less format). Keys from all versions are recognised including `services`, `volumes`, `networks`, `configs`, and top-level `x-` extension fields (which are ignored).
- How are Docker Compose secrets detected?
- Environment variable keys containing the substrings PASSWORD, SECRET, KEY, TOKEN, or CREDENTIALS (case-insensitive) are separated into Kubernetes Secret manifests. All other environment variables are placed into a ConfigMap. You should review and adjust the generated Secrets before deploying.
- How are volumes converted to Kubernetes resources?
- Named volumes defined in the Compose file become PersistentVolumeClaim (PVC) resources, and the Deployment mounts them at the same container path. Anonymous volumes (not named) are converted to emptyDir volumes in the pod spec.
- What about `depends_on` and networking?
- `depends_on` ordering is not directly representable in Kubernetes. The converter drops it and relies on Kubernetes restart policies for startup ordering. All services in the same Compose file are placed in the same namespace and can communicate via their Service DNS names.
- Can I use the output with Helm?
- The generated YAML is plain Kubernetes manifests, not Helm charts. You can use them directly with `kubectl apply` or copy them into a Helm chart `templates/` directory. For full Helm support (values.yaml, templating), you would need to manually parameterise the generated manifests.
- How does this compare to the Kompose CLI tool?
- Kompose is the official Docker-to-Kubernetes conversion CLI tool. This browser-based converter offers a faster, zero-install alternative for quick conversions. For production use, Kompose supports more advanced features and should be your primary tool — this converter is ideal for exploration and learning.
- Is my docker-compose.yml safe to paste here?
- Yes. All conversion runs locally in your browser — no YAML is sent to any server. This is safe even if your Compose file contains internal service names or non-sensitive configuration values.
- What Kubernetes API version is used in the output?
- The converter targets stable API versions: `apps/v1` for Deployments, `v1` for Services, ConfigMaps, Secrets, and PersistentVolumeClaims. These API versions are supported in all actively maintained Kubernetes releases (1.16+).
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