Kubernetes Management

Overview

Vapor provides comprehensive Kubernetes cluster management capabilities, allowing you to manage workloads, monitor resources, and deploy applications directly from the web interface. The Kubernetes section integrates seamlessly with your cluster, providing both basic operations and advanced features like Helm chart management.

Accessing Kubernetes Features

Navigate to the Kubernetes section through the sidebar:

Kubernetes
├── Workloads     (Pods, Deployments, StatefulSets, etc.)
├── Networks      (Services, Ingresses, NetworkPolicies)
├── Storages      (PVCs, PVs, StorageClasses)
├── Configurations (ConfigMaps, Secrets)
├── Nodes         (Cluster nodes and resources)
├── CRDs          (Custom Resource Definitions)
└── Helm Charts   (Package management)

Workloads Management

Pods

The Pods view provides comprehensive pod management:

Kubernetes Pods List

Pod List Features

Namespace Filtering

Select "All Namespaces" or specific namespace
Quick namespace switching
Namespace isolation for security

Search and Filter

Real-time search by pod name
Filter by status (Running, Pending, Failed)
Sort by age, status, or resource usage

Status Indicators

🟢 RUNNING: Pod is healthy and running
🟡 PENDING: Pod is being scheduled or starting
🔴 FAILED: Pod has crashed or failed to start
🟠 UNKNOWN: Pod status cannot be determined

Pod Information Display

Each pod entry shows:

Name: Full pod identifier
Namespace: Kubernetes namespace
Status: Current pod state
Replicas: Number of containers
Age: Time since creation
Actions: Quick action menu

Pod Details

Click on any pod to view detailed information:

Pod Details Modal

Basic Information

yaml

Name:              virt-launcher-019840fd-2c27-7d14-bbeb-98263371bda7-cnjvc
Namespace:         3cca58ab-5e85-473e-90a3-2862c2cf8f20
UID:               6e21864d-30e6-464d-bf4f-d73889bc3ba0
Resource Version:  1233755250
Creation Time:     2025-07-25T09:52:03Z
Age:               13 days, 3 hours

Status Information

yaml

Phase:       Running
QoS Class:   Burstable
Start Time:  2025-07-25T09:52:03Z

Network Information

yaml

Pod IP:      10.0.8.22
Host IP:     172.16.1.2
Node:        avid5

Creating Resources

Vapor supports creating Kubernetes resources using YAML or JSON:

Create Resource

Resource Creation Process

Click "Create" button in the workloads view
Enter resource definition in YAML or JSON format
Format auto-detection identifies the syntax
Validation occurs before submission
Apply to create the resource

Example Pod Creation

yaml

apiVersion: v1
kind: Pod
metadata:
  name: my-pod
  namespace: default
spec:
  containers:
  - name: nginx
    image: nginx:latest
    ports:
    - containerPort: 80

Pod Operations

Viewing Logs

Access real-time pod logs:

Pod Logs Viewer

Log Features:

Real-time streaming
Search within logs
Timestamp display
JSON formatting for structured logs
Export capabilities

Deleting Pods

Safe deletion with confirmation:

Delete Confirmation

Deletion Safety:

Confirmation dialog shows pod details
Warning about permanent deletion
Namespace verification
Cancel option available

Deployments

Manage application deployments with:

Deployment Features

Scaling: Adjust replica count
Rolling Updates: Zero-downtime deployments
Rollback: Revert to previous versions
Strategy Configuration: RollingUpdate or Recreate

Creating a Deployment

yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx-deployment
  namespace: default
spec:
  replicas: 3
  selector:
    matchLabels:
      app: nginx
  template:
    metadata:
      labels:
        app: nginx
    spec:
      containers:
      - name: nginx
        image: nginx:1.21
        ports:
        - containerPort: 80

Deployment Operations

Scale: Adjust replica count up or down
Update: Change image or configuration
Pause/Resume: Control rollout process
History: View revision history

StatefulSets

For stateful applications requiring:

Stable network identities
Persistent storage
Ordered deployment and scaling
Ordered termination

StatefulSet Example

yaml

apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: mysql
spec:
  serviceName: mysql
  replicas: 3
  selector:
    matchLabels:
      app: mysql
  template:
    metadata:
      labels:
        app: mysql
    spec:
      containers:
      - name: mysql
        image: mysql:8.0
        env:
        - name: MYSQL_ROOT_PASSWORD
          value: "secretpassword"
        volumeMounts:
        - name: mysql-storage
          mountPath: /var/lib/mysql
  volumeClaimTemplates:
  - metadata:
      name: mysql-storage
    spec:
      accessModes: ["ReadWriteOnce"]
      resources:
        requests:
          storage: 10Gi

DaemonSets

Deploy pods on every node:

Log collectors
Monitoring agents
Network plugins
Storage daemons

Jobs and CronJobs

Jobs

One-time tasks:

Data processing
Batch operations
Maintenance tasks

CronJobs

Scheduled recurring tasks:

Backups
Report generation
Cleanup operations

Networking

Services

Expose applications within the cluster:

yaml

apiVersion: v1
kind: Service
metadata:
  name: nginx-service
spec:
  selector:
    app: nginx
  ports:
  - protocol: TCP
    port: 80
    targetPort: 80
  type: ClusterIP

Service Types:

ClusterIP: Internal cluster access
NodePort: External access via node ports
LoadBalancer: Cloud provider load balancer
ExternalName: DNS CNAME record

Ingresses

HTTP/HTTPS routing:

yaml

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: nginx-ingress
spec:
  rules:
  - host: app.example.com
    http:
      paths:
      - path: /
        pathType: Prefix
        backend:
          service:
            name: nginx-service
            port:
              number: 80

Storage

Persistent Volume Claims (PVCs)

Request storage for pods:

yaml

apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: mysql-pvc
spec:
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 20Gi
  storageClassName: fast-ssd

Storage Classes

Define storage types:

Performance tiers
Backup policies
Encryption settings
Provisioner configuration

Configuration

ConfigMaps

Store configuration data:

yaml

apiVersion: v1
kind: ConfigMap
metadata:
  name: app-config
data:
  database.conf: |
    host=localhost
    port=5432
    name=myapp
  app.properties: |
    debug=false
    version=1.0.0

Secrets

Manage sensitive data:

yaml

apiVersion: v1
kind: Secret
metadata:
  name: mysql-secret
type: Opaque
data:
  password: cGFzc3dvcmQxMjM=  # base64 encoded

Helm Chart Management

Vapor includes full Helm support:

Helm Operations

List Releases: View all deployed charts
Install Charts: Deploy from repositories
Upgrade Releases: Update to new versions
Rollback: Revert to previous releases
Uninstall: Remove deployed charts

Installing a Helm Chart

bash

# Example: Installing Prometheus
helm repo add prometheus-community https://prometheus-community.github.io/helm-charts
helm install prometheus prometheus-community/prometheus

Managing Releases

View and manage Helm releases:

Release name and namespace
Chart version
App version
Status (deployed, failed, pending)
Last updated timestamp

Custom Resource Definitions (CRDs)

Extend Kubernetes with custom resources:

Viewing CRDs

List all installed CRDs
View CRD details and versions
Access custom resources
Monitor CRD status

Common CRDs

Cert-manager certificates
Istio service mesh
Prometheus monitoring
Operator-managed resources

Node Management

Monitor cluster nodes:

Resource allocation
Pod scheduling
Node conditions
Taints and tolerations

Best Practices

Resource Management

Set resource limits: Prevent resource exhaustion
Use namespaces: Isolate workloads
Label consistently: Easier management
Monitor resources: Track usage patterns

Security

Use RBAC: Role-based access control
Secure secrets: Encrypt sensitive data
Network policies: Control traffic flow
Pod security: Use security contexts

High Availability

Multiple replicas: Avoid single points of failure
Pod disruption budgets: Control maintenance
Liveness probes: Automatic recovery
Readiness probes: Traffic management

Troubleshooting

Common Issues

Pods Not Starting

Check pod events
Review container logs
Verify image availability
Check resource constraints

Service Discovery

Verify service selectors
Check endpoint creation
Test DNS resolution
Validate network policies

Storage Issues

Check PVC binding
Verify storage class
Review volume permissions
Monitor disk space

Integration with CI/CD

Vapor's Kubernetes features integrate with:

GitOps workflows
CI/CD pipelines
Helm charts
Kubectl commands

Next Steps

← Previous: Container Management | Next: User Management →

Kubernetes Management ​

Overview ​

Accessing Kubernetes Features ​

Workloads Management ​

Pods ​

Pod List Features ​

Pod Information Display ​

Pod Details ​

Basic Information ​

Status Information ​

Network Information ​

Creating Resources ​

Resource Creation Process ​

Example Pod Creation ​

Pod Operations ​

Viewing Logs ​

Deleting Pods ​

Deployments ​

Deployment Features ​

Creating a Deployment ​

Deployment Operations ​

StatefulSets ​

StatefulSet Example ​

DaemonSets ​

Jobs and CronJobs ​

Jobs ​

CronJobs ​

Networking ​

Services ​

Ingresses ​

Storage ​

Persistent Volume Claims (PVCs) ​

Storage Classes ​

Configuration ​

ConfigMaps ​

Secrets ​

Helm Chart Management ​

Helm Operations ​

Installing a Helm Chart ​

Managing Releases ​

Custom Resource Definitions (CRDs) ​

Viewing CRDs ​

Common CRDs ​

Node Management ​

Best Practices ​

Resource Management ​

Security ​

High Availability ​

Troubleshooting ​

Common Issues ​

Pods Not Starting ​

Service Discovery ​

Storage Issues ​

Integration with CI/CD ​

Next Steps ​

Kubernetes Management

Overview

Accessing Kubernetes Features

Workloads Management

Pods

Pod List Features

Pod Information Display

Pod Details

Basic Information

Status Information

Network Information

Creating Resources

Resource Creation Process

Example Pod Creation

Pod Operations

Viewing Logs

Deleting Pods

Deployments

Deployment Features

Creating a Deployment

Deployment Operations

StatefulSets

StatefulSet Example

DaemonSets

Jobs and CronJobs

Jobs

CronJobs

Networking

Services

Ingresses

Storage

Persistent Volume Claims (PVCs)

Storage Classes

Configuration

ConfigMaps

Secrets

Helm Chart Management

Helm Operations

Installing a Helm Chart

Managing Releases

Custom Resource Definitions (CRDs)

Viewing CRDs

Common CRDs

Node Management

Best Practices

Resource Management

Security

High Availability

Troubleshooting

Common Issues

Pods Not Starting

Service Discovery

Storage Issues

Integration with CI/CD

Next Steps