Client Onboarding Guide¶
Executive Summary¶
We are deploying a production-ready, highly available Nextcloud platform on Kubernetes infrastructure. This solution provides enterprise-grade file sharing, collaboration, and data management with full operational visibility and automated management.
Key Benefits¶
- High Availability: Automatic failover and redundancy for zero downtime
- Scalability: Grows with your needs - from 10 to 10,000 users
- Document Collaboration: Real-time document editing with Collabora Online
- Audio/Video Calls: High-performance backend for scalable conferencing
- Security: Enterprise-grade encryption, secret management, and access controls
- Monitoring: Real-time visibility into system health and performance
- Automation: Self-healing infrastructure with automated backups and updates
- Cost-Effective: Efficient resource utilization and right-sizing
Solution Architecture¶
Platform Components¶
┌─────────────────────────────────────────────────────────────────┐
│ Kubernetes Cluster │
├─────────────────────────────────────────────────────────────────┤
│ │
│ ┌──────────────────────────────────────────────────────────┐ │
│ │ Ingress Controller │ │
│ │ • NGINX Ingress (Load Balancing & Routing) │ │
│ │ • Automatic SSL/TLS (cert-manager + Let's Encrypt) │ │
│ └──────────────────────────────────────────────────────────┘ │
│ │ │
│ ┌───────────────────────────────────────────────────────────┐ │
│ │ Nextcloud Application │ │
│ │ • Multiple replicas for high availability │ │
│ │ • Session management with Redis │ │
│ │ • Integrated with Collabora & Talk HPB │ │
│ └───────────────────────────────────────────────────────────┘ │
│ │ │ │ │ │
│ ┌────────────┐ ┌──────────────┐ ┌─────────────┐ ┌─────────┐│
│ │ PostgreSQL │ │ Redis │ │ Storage │ │Collabora││
│ │ Cluster │ │ Cache │ │ (S3) │ │ Online ││
│ │ (3 nodes) │ │ (Sessions) │ │ Optional │ │(Central)││
│ └────────────┘ └──────────────┘ └─────────────┘ └─────────┘│
│ │
│ ┌──────────────────────────────────────────────────────────┐ │
│ │ Observability Stack │ │
│ │ • Prometheus (Metrics & Alerting) │ │
│ │ • Grafana (Dashboards & Visualization) │ │
│ │ • Loki (Log Aggregation & Analysis) │ │
│ └──────────────────────────────────────────────────────────┘ │
│ │
│ ┌──────────────────────────────────────────────────────────┐ │
│ │ Automation & Management │ │
│ │ • Nextcloud Operator (Automated Management) │ │
│ │ • PostgreSQL Operator (Database Management) │ │
│ │ • Automated Backups & Recovery │ │
│ └──────────────────────────────────────────────────────────┘ │
│ │
└─────────────────────────────────────────────────────────────────┘
│
▼
┌─────────────────────────────────────────────────────────────────┐
│ External VMs (Dedicated Infrastructure) │
├─────────────────────────────────────────────────────────────────┤
│ ┌──────────────────────────────────────────────────────────┐ │
│ │ Nextcloud Talk High Performance Backend (HPB) │ │
│ │ • WebRTC signaling server │ │
│ │ • Audio/Video call routing │ │
│ │ • SFU (Selective Forwarding Unit) │ │
│ │ • Scales to 100+ concurrent calls │ │
│ │ • Dedicated VMs for reliable performance │ │
│ └──────────────────────────────────────────────────────────┘ │
└─────────────────────────────────────────────────────────────────┘
Technology Stack¶
| Component | Technology | Purpose |
|---|---|---|
| Container Orchestration | Kubernetes | Application management |
| Application | Nextcloud 29+ | File sharing and collaboration |
| Database | PostgreSQL 16 (Percona Operator) | High-availability data storage |
| Cache | Redis | Session management and performance |
| Ingress | NGINX Ingress Controller | Load balancing and routing |
| TLS/SSL | cert-manager + Let's Encrypt | Automatic certificate management |
| Metrics | Prometheus + Grafana | Performance monitoring |
| Logs | Loki + Promtail | Centralized log management |
| Storage | S3-Compatible (Optional) | Scalable object storage |
| Operators | Custom Nextcloud Operator | Automated lifecycle management |
| Document Editing | Collabora Online (Central Service) | Real-time document collaboration |
| Video Conferencing | Talk High Performance Backend (HPB) | Scalable audio/video calls on dedicated VMs |
Deployment Phases¶
Phase 1: Infrastructure Setup (Week 1)¶
1.1 Kubernetes Cluster Provisioning¶
- Deploy production-ready Kubernetes cluster
- Configure networking and security policies
- Set up storage classes for persistent data
- Establish backup infrastructure
1.2 Core Platform Components¶
Deploy foundational services:
# 1. Ingress Controller
helm install ingress-nginx ingress-nginx/ingress-nginx \
--namespace ingress-nginx \
--create-namespace
# 2. Certificate Manager
helm install cert-manager jetstack/cert-manager \
--namespace cert-manager \
--create-namespace \
--set installCRDs=true
# 3. Monitoring Stack
helm install kube-prometheus-stack prometheus-community/kube-prometheus-stack \
--namespace monitoring \
--create-namespace
# 4. Logging Stack
helm install loki grafana/loki-stack \
--namespace logging \
--create-namespace
1.3 Central Services Setup¶
Collabora Online (Document Server)
- Central Collabora deployment in Kubernetes
- Shared by all Nextcloud instances
- Enables real-time document editing (Word, Excel, PowerPoint)
- High availability with multiple replicas
Nextcloud Talk HPB (High Performance Backend)
- Dedicated virtual machines for audio/video conferencing
- WebRTC signaling and SFU (Selective Forwarding Unit)
- Handles 100+ concurrent video calls
- Isolated from main Kubernetes cluster for optimal performance
Phase 2: Database & Operators (Week 2)¶
2.1 PostgreSQL Operator¶
kubectl apply -f https://raw.githubusercontent.com/percona/percona-postgresql-operator/v2.4.1/deploy/bundle.yaml
2.2 Nextcloud Operator¶
Phase 3: Nextcloud Deployment (Week 2-3)¶
Deploy Nextcloud with recommended configuration:
apiVersion: k8s.bnerd.com/v1alpha1
kind: NextcloudInstance
metadata:
name: company-nextcloud
namespace: nextcloud
spec:
profile: production
version: "29"
replicas: 3
ingress:
enabled: true
host: cloud.company.com
className: nginx
tls:
enabled: true
annotations:
cert-manager.io/cluster-issuer: letsencrypt-prod
database:
type: postgresql
managed: true
postgres:
replicas: 3
storage:
size: 100Gi
backup:
enabled: true
redis:
enabled: true
Phase 4: Monitoring & Observability (Week 3)¶
- Grafana dashboards for Nextcloud metrics, infrastructure, and alerts
- Centralized logging via Loki
- Alert rules for error rates, resource exhaustion, certificate expiry, backup failures
Phase 5: Handover & Training (Week 4)¶
- System architecture documentation and runbooks
- Administrative training (2h): user management, quotas, security
- Operations training (3h): kubectl, dashboards, alerts, updates
- End user training (1h): web interface, desktop/mobile clients
Service Profiles¶
| Profile | Users | Replicas | CPU/Pod | Memory/Pod | Storage | Features |
|---|---|---|---|---|---|---|
| Small | 10-50 | 1 | 1 CPU | 2Gi | 50Gi | Basic |
| Medium | 50-500 | 2 | 2 CPU | 4Gi | 200Gi | Redis, Collabora |
| Large | 500+ | 3+ | 4 CPU | 8Gi | 500Gi+ | Redis, Collabora, Talk HPB, S3 |
Profiles are flexible and can be customized. See Configuration Profiles for details.
Operational Features¶
Document Collaboration (Collabora Online)¶
- Real-time editing of Office documents directly in browser
- Supports .docx, .xlsx, .pptx and ODF formats
- Multiple users editing simultaneously with change tracking
- Central service shared across all Nextcloud instances
Audio/Video Conferencing (Talk HPB)¶
- HD video conferencing (up to 1080p) with screen sharing
- Handles 100+ concurrent calls via dedicated VMs
- Sub-100ms latency with direct UDP connectivity
- Recording capabilities and chat integration
High Availability¶
- Multiple replicas distributed across cluster nodes
- 3-node PostgreSQL with automatic failover
- Zero-downtime rolling updates
Backup & Recovery¶
- Automated daily database backups with 30-day retention
- Point-in-time recovery (PITR)
- Configurable data backup schedule to S3
Security¶
- TLS/SSL for all traffic (automatic certificates)
- Kubernetes RBAC and network policies
- Secret management for credentials
- GDPR-compliant data handling with audit logging
Cost Considerations¶
| Component | Resources | Estimated Cost/Month* |
|---|---|---|
| Nextcloud Pods (3x) | 12 vCPU, 24GB RAM | $300-400 |
| PostgreSQL Cluster (3x) | 12 vCPU, 36GB RAM | $400-500 |
| Redis | 1 vCPU, 2GB RAM | $30-50 |
| Collabora Online (2x) | 4 vCPU, 8GB RAM | $100-150 |
| Talk HPB VMs (2x) | 4 vCPU, 8GB RAM | $100-150 |
| Storage (500GB SSD) | 500GB Block Storage | $50-100 |
| Load Balancer + Backups | $45-90 | |
| Total | ~$1,025-1,440/month |
Estimates for a large profile. Actual costs vary by provider and region. Start with medium profile and adjust as needed. Save 30-50% with reserved instances.
Support & Maintenance¶
Service Level Agreement (SLA)¶
| Metric | Target |
|---|---|
| Uptime | 99.9% monthly |
| Response Time (critical) | < 2 hours |
| Resolution Time (critical) | < 24 hours |
| Backup Success Rate | 99.5% weekly |
| RTO (Recovery Time) | < 4 hours |
| RPO (Data Loss) | < 24 hours |
Maintenance Windows¶
- Planned: Monthly, communicated 1 week in advance
- Emergency patches: As needed, communicated immediately
- Downtime: Typically zero due to rolling updates
Migration & Integration¶
Data Migration¶
- Assessment: Audit current data volume, users, permissions, custom apps
- Parallel deployment: New platform alongside old
- Phased migration: Data sync, user migration, validation, cutover
Integration Options¶
- Authentication: LDAP, Active Directory, SAML, OAuth
- Storage: NFS, S3, CIFS
- Collaboration: Microsoft 365, Google Workspace
- Email: SMTP for notifications
- Calendar/Contacts: CalDAV, CardDAV sync
- API: REST API for custom integrations
Timeline¶
Week 1: Infrastructure Setup
├─ Day 1-2: Cluster provisioning
├─ Day 3-4: Core components deployment
└─ Day 5: Infrastructure validation
Week 2: Central Services & Database
├─ Day 1-2: Collabora + Talk HPB setup
├─ Day 3-4: PostgreSQL + Nextcloud operator
└─ Day 5: Initial Nextcloud deployment
Week 3: Monitoring & Optimization
├─ Day 1-2: Observability stack
├─ Day 3-4: Performance tuning + testing
└─ Day 5: Load testing
Week 4: Handover & Go-Live
├─ Day 1-2: Documentation
├─ Day 3-4: Training sessions
└─ Day 5: Production cutover
FAQs¶
Q: How long until Nextcloud is operational? A: Typically 2-3 weeks from project start to production-ready deployment.
Q: Can we start small and grow? A: Absolutely! We recommend starting with the medium profile and adjusting based on actual usage.
Q: What happens if a component fails? A: High availability ensures automatic failover. Most failures are invisible to users.
Q: How are updates handled? A: Rolling updates with zero downtime. We test in staging before production.
Q: Can we access the Kubernetes cluster directly? A: Yes, we provide kubectl access with appropriate RBAC permissions.
Q: What about data sovereignty? A: You choose the infrastructure provider and region. Data stays in your specified location.
Q: Is this GDPR compliant? A: Yes, Nextcloud is GDPR-compliant by design. We follow best practices for data handling.
Q: Can we migrate from our current file sharing solution? A: Yes, we provide migration services from common platforms (Dropbox, SharePoint, etc.).