---
title: Prerequisites
description: Before deploying the OpenLM Platform, verify that the environment prepared in Environment setup meets the following requirements.
product: OpenLM Platform
---

Before deploying the OpenLM Platform, verify that the environment prepared in [Environment setup](https://openlm.com/documentation/cloud/deployment-operations/on-premise/deployment-guide/on-premise-machines/environment-setup) meets the following requirements.

## Infrastructure checklist

Confirm the following services are running and accessible from the Kubernetes cluster:

| Service | Status to verify |
| --- | --- |
| **SQL Database** | Server reachable, connection string available. Supported engines: SQL Server, MariaDB, or PostgreSQL (MariaDB for operational, PostgreSQL for reporting). |
| **MongoDB** | Reachable, connection string available. Running in-cluster on the infrastructure node. |
| **Kafka** | Cluster reachable, authentication credentials available. All required topics must be created before deployment. |
| **Redis** | Reachable, connection string and credentials available. |
| **Storage class** | At least one Kubernetes storage class available. Verify with `kubectl get storageclass`. |

## Database preparation

### Create databases

Create the following databases on your SQL server before deployment:

1. **Identity database** – stores user and authentication data
2. **Operational database** – stores license server and usage data. The database name in the server must end with `_none` (for example, `openlm_operational_none`). In the Helm values we configure the prefix without `_none`.
3. **DSS database** – stores Directory Synchronization Service data
4. **Reporting database** – stores reporting data (PostgreSQL or SQL Server)

### Prepare reporting database

After creating the reporting database, apply the provided SQL scripts in this order:

1. Table creation script
2. View creation script

These scripts are included in the deployment package.

### Prepare Kafka topics

Create all required Kafka topics before deployment. A topic creation script is included in the deployment package.

## Kubernetes namespace

Create the namespace for the OpenLM platform:

```bash
kubectl create namespace openlm
```

## TLS certificate

Prepare your TLS certificate and create a Kubernetes secret:

```bash
kubectl create secret tls openlm-lb-cert \
  --key your-domain.key \
  --cert your-domain.crt \
  -n openlm
```

## Custom CA certificate

If your organization uses internal certificate authorities, create a ConfigMap with the full certificate chain:

```bash
kubectl apply -f custom-ca-configmap.yaml -n openlm
```

The ConfigMap should contain the full chain of certificates used by your organization. If you are unsure, use the same certificate from the TLS secret described earlier.

## Validation

Run these checks before proceeding to [Platform installation](https://openlm.com/documentation/cloud/deployment-operations/on-premise/deployment-guide/platform-installation):

```bash
# Verify namespace exists
kubectl get namespace openlm

# Verify TLS secret
kubectl get secret openlm-lb-cert -n openlm

# Verify storage class
kubectl get storageclass

# Verify nodes are ready
kubectl get nodes

# Verify infrastructure services are running
kubectl get pods -n openlm-infrastructure
```