# Infrastructure Requirements for Private Cloud Deployment

For **Large Enterprise customers**, K-LINK offers flexible deployment options on GCP, AWS, or customer-managed private cloud environments.

We support:

* **Local Compliance**: Data residency alignment (PDPA, GDPR, HIPAA, etc.)
* **High Availability**: Multi-zone deployment, database replication, and failover
* **Data Security**: End-to-end encryption, daily backups, and 30-day retention
* **Private Cloud Ready**: On-premise/VPC deployment with zero external dependencies
* **Enterprise Integrations**: SSO, private networking, and secure configuration options

This deployment model is tailored for enterprise clients with strict regulatory, infrastructure, and security requirements.

Our team works closely with your IT to ensure a smooth and secure setup from infra to production

To ensure optimal performance, scalability, and reliability, we recommend deploying the klink.cloud platform on **Google Cloud Platform (GCP)** or **Amazon Web Services (AWS)**. However, klink.cloud also supports deployment in customer-managed **private cloud environments**, provided the following minimum infrastructure specifications are met.

***

#### ☁️ Preferred Private Cloud Environments

* **Recommended**:
  * Google Cloud Platform (GCP)
  * Amazon Web Services (AWS)
* **Supported**:
  * Customer’s Private Cloud (VMware, OpenStack, Bare Metal, or any CNCF-compliant Kubernetes setup)

***

#### 📦 Application Layer – Kubernetes Worker Nodes

| Resource   | Specification                                                       |
| ---------- | ------------------------------------------------------------------- |
| Quantity   | 10–12 servers                                                       |
| CPU        | 16–24 cores per server                                              |
| RAM        | 32–48 GB per server                                                 |
| Storage    | 1–2 TB NVMe SSD per server                                          |
| Networking | Dual 10 Gbps NICs per server                                        |
| Role       | Host for microservices, message handling, channel integration, etc. |

***

#### 🗄️ Database Layer – PostgreSQL

**Primary Database Server**

* **CPU**: 16–24 cores
* **RAM**: 64–128 GB
* **Storage**: 2–4 TB NVMe SSD
* **Database Engine**: PostgreSQL 13+ (recommended)

**Read Replica (Optional but recommended)**

* **CPU**: 8–16 cores
* **RAM**: 32–64 GB
* **Storage**: 2–4 TB NVMe SSD
* **Purpose**: Query load balancing, reporting, and disaster recovery

***

#### 🔄 Cache & Session Layer – Redis

| Resource | Specification               |
| -------- | --------------------------- |
| Quantity | 2 servers                   |
| CPU      | 4–8 cores per server        |
| RAM      | 16–32 GB per server         |
| Storage  | 200 GB SSD per server       |
| Role     | Caching, session management |

***

#### 🌐 Load Balancing Layer

| Resource | Specification                |
| -------- | ---------------------------- |
| Quantity | 2 servers (HA configuration) |
| CPU      | 4–8 cores per server         |
| RAM      | 8–16 GB per server           |
| Storage  | 200 GB SSD per server        |
| Features | SSL termination, L7 routing  |

***

#### 🌐 Network & Bandwidth Requirements

* **Internal Network Backbone**: 10 Gbps, redundant paths
* **Internet Connectivity**: Minimum 1 Gbps dedicated line
* **Firewall**: Enterprise-grade with Deep Packet Inspection (DPI)
* **Redundancy**: Dual WAN/internet lines recommended
* **Load Balancer**: Hardware or software-based, HA configuration

***

#### ⚙️ System Architecture Overview

**Kubernetes Cluster**

* **Master Nodes**: 3 nodes (HA control plane)
* **Worker Nodes**: 10–12 nodes
* **Container Runtime**: containerd (preferred) or Docker
* **CNI**: Calico or Flannel
* **Persistent Storage**: Required for DB, logs, recordings

**Application Components**

* 45+ microservices including:
  * Chat & messaging engines (7–15 replicas)
  * Omnichannel integrations (WhatsApp, Facebook, Telegram, etc.)
  * Analytics, dashboards, automation, ticketing
  * API gateway, user auth, and web frontend

***

#### 🧩 Software Stack & Dependencies

| Component     | Version / Type                                |
| ------------- | --------------------------------------------- |
| OS            | Ubuntu 20.04 LTS / RHEL 8+                    |
| Kubernetes    | v1.25+                                        |
| Database      | PostgreSQL 13+ / MySQL 8+                     |
| Cache         | Redis 6+                                      |
| Message Queue | Apache Kafka                                  |
| Web Server    | NGINX or Apache HTTP Server                   |
| SSL           | Let’s Encrypt or Commercial SSL Certs         |
| Registry      | Private Docker Registry (with image scanning) |

***

#### 🔁 High Availability & Disaster Recovery

* **App Layer**: Multi-zone Kubernetes with 3 control-plane nodes
* **Database Layer**: Master-slave with automatic failover
* **Load Balancer**: Active-passive HA setup
* **Storage Layer**: RAID configuration with hot spares

**Backup Strategy**

* **Database**: Daily full backups + hourly incrementals
* **App Data**: Real-time replication to secondary storage
* **Configuration**: GitOps / Infrastructure as Code
* **Retention**: Minimum 30-day rolling window

***

#### 📦 Deployment Deliverables

K-LINK will provide comprehensive support to ensure a secure, stable, and scalable deployment of the klink.cloud platform in your private cloud environment.

We will deliver:

* **Technical Onboarding**: Assistance with infrastructure setup, system validation, and go-live support
* **Ongoing Maintenance & Updates**:
  * Regular software updates and feature releases
  * Timely bug fixes and patch deployments
  * Infrastructure monitoring and performance tuning
  * Proactive issue detection and resolution assistance

> Our team works closely with your DevOps and IT teams to ensure long-term operational reliability and platform performance.

For more details, please contact <support@klink.cloud> (or) contact directly to your Key Account Manager