Kubernetes Orchestration: Managing Containerized Applications
October 12, 2024•1 min read
KubernetesContainerizationDevOpsOrchestration
# Kubernetes Orchestration: Managing Containerized Applications
Kubernetes automates deployment, scaling, and management of containerized applications, making it essential for production environments.
## Core Concepts
### Pods
Smallest deployable unit:
```yaml
apiVersion: v1
kind: Pod
metadata:
name: my-app
spec:
containers:
- name: app
image: my-app:latest
ports:
- containerPort: 3000
```
### Deployments
Manage pod replicas:
```yaml
apiVersion: apps/v1
kind: Deployment
metadata:
name: my-app
spec:
replicas: 3
selector:
matchLabels:
app: my-app
template:
metadata:
labels:
app: my-app
spec:
containers:
- name: app
image: my-app:latest
```
### Services
Expose pods:
```yaml
apiVersion: v1
kind: Service
metadata:
name: my-app-service
spec:
selector:
app: my-app
ports:
- port: 80
targetPort: 3000
type: LoadBalancer
```
## Scaling
```bash
kubectl scale deployment my-app --replicas=5
kubectl autoscale deployment my-app --min=2 --max=10 --cpu-percent=80
```
## Conclusion
Kubernetes provides powerful orchestration for containerized applications. Master core concepts to deploy scalable, reliable applications.