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Contents
---
title: YAML Example
---
Kubes provides helper methods to make creating extra environments easy: `with_extra`. We'll create extra environments under different namespaces.
Here's how you achieve extra environments with the YAML form:
.kubes/resources/web/deployment.rb
```ruby
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: demo-web
labels:
app: demo
namespace: <%= with_extra("default") %>
spec:
replicas: 2
selector:
matchLabels:
app: demo
template:
metadata:
labels:
app: demo
spec:
containers:
- image: <%= docker_image %>
name: demo-web
```
.kubes/resources/web/service.rb
```ruby
---
apiVersion: v1
kind: Service
metadata:
name: demo-web
labels:
app: demo
namespace: <%= with_extra("default") %>
spec:
ports:
- port: 80
protocol: TCP
targetPort: 8080
selector:
app: demo
type: NodePort
```
It's important to use the `with_extra` helper to set the namesapce. The helper accounts for `KUBES_EXTRA` and appends the value.
## Deployment
Then to create an additional environment, it's simple:
kubectl create ns default-2
KUBES_EXTRA=2 kubes deploy
To check on the resources:
kubectl get all -n default-2
Version data entries
37 entries across 37 versions & 1 rubygems