Wazuh on Aruba Cloud
Deploy Wazuh — an open-source SIEM, XDR, and CSPM platform — on Aruba Cloud using Terraform and cloud-init. This example provisions a single-node all-in-one deployment using the official Wazuh quick-install script.
Provider version: arubacloud/arubacloud
~> 0.5| Terraform: ≥ 1.9
Introduction
Wazuh is a unified security platform that combines a SIEM (Security Information and Event Management) system, XDR (Extended Detection and Response), and CSPM (Cloud Security Posture Management) into a single solution. The all-in-one deployment bundles:
- Wazuh Indexer — OpenSearch-based log indexing and alerting engine
- Wazuh Manager — Agent management, rule correlation, and threat detection
- Wazuh Dashboard — Kibana-based web UI for alerts, compliance, and investigation
Resource requirements: Wazuh is resource-intensive. The minimum for a usable all-in-one deployment is 8 vCPU / 16 GB RAM and 200 GB disk. Do not attempt to deploy on a smaller VM — the OpenSearch indexer will OOM and fail.
Bootstrap time: The installer downloads and configures multiple components. Expect 20–30 minutes before the dashboard is accessible.
Architecture Overview
Infrastructure Created
| Resource | Name pattern | Description |
|---|---|---|
arubacloud_project | wazuh-prod | Project container |
arubacloud_vpc | wazuh-prod-vpc | Virtual Private Cloud |
arubacloud_subnet | wazuh-prod-subnet | Basic subnet |
arubacloud_securitygroup | wazuh-prod-vm-sg | Security group |
arubacloud_securityrule | wazuh-prod-vm-ssh | SSH ingress |
arubacloud_securityrule | wazuh-prod-vm-dashboard | HTTPS dashboard TCP 443 |
arubacloud_securityrule | wazuh-prod-vm-agent-events | Agent events TCP 1514 |
arubacloud_securityrule | wazuh-prod-vm-agent-enroll | Agent enrollment TCP 1515 |
arubacloud_elasticip | wazuh-prod-vm-eip | VM public IP |
arubacloud_blockstorage | wazuh-prod-boot | 200 GB boot disk (Performance) |
arubacloud_keypair | wazuh-prod-keypair | SSH public key |
arubacloud_cloudserver | wazuh-prod-vm | CloudServer VM |
Estimated Monthly Cost
| Resource | Spec | Est. cost/mo |
|---|---|---|
| CloudServer VM | CSO8A16 — 8 vCPU / 16 GB | ~€95 |
| Boot disk | 200 GB Performance | ~€30 |
| Elastic IP | — | ~€3 |
| Total | ~€128/mo |
Requirements
- Terraform ≥ 1.9
- ArubaCloud Terraform Provider
~> 0.5 - An ArubaCloud account with OAuth2 API credentials
- An SSH key pair
Variables
Required
| Variable | Description |
|---|---|
arubacloud_client_id | ArubaCloud OAuth2 client ID |
arubacloud_client_secret | ArubaCloud OAuth2 client secret |
ssh_public_key | SSH public key content |
admin_password | Wazuh dashboard admin password (min 8 chars, must include upper, lower, digit, special) |
Optional
| Variable | Default | Description |
|---|---|---|
app_name | "wazuh" | Short name used in all resource names |
environment | "prod" | Environment label |
location | "ITBG-Bergamo" | ArubaCloud region |
zone | "ITBG-1" | Availability zone |
billing_period | "Hour" | "Hour" or "Month" |
vm_flavor | "CSO8A16" | CloudServer flavor (8 vCPU / 16 GB minimum) |
vm_image | "LU22-001" | Boot disk image (Ubuntu 22.04 LTS) |
vm_disk_size_gb | 200 | Boot disk size in GB (min 50 GB) |
ssh_cidr | "0.0.0.0/0" | CIDR for SSH — restrict in production |
admin_cidr | "0.0.0.0/0" | CIDR for HTTPS dashboard — always restrict |
agent_cidr | "0.0.0.0/0" | CIDR for agent ports 1514/1515 |
Outputs
| Output | Description |
|---|---|
dashboard_url | Wazuh dashboard HTTPS URL |
vm_public_ip | Public IP address of the VM |
ssh_command | SSH command to connect to the VM |
agent_manager_ip | Manager IP to configure in agent ossec.conf |
Deployment Instructions
1. Clone and navigate
git clone https://github.com/arubacloud/terraform-arubacloud-examples.git
cd terraform-arubacloud-examples/wazuh
2. Configure variables
cp terraform.tfvars.example terraform.tfvars
Set credentials, a strong admin password, and restrict CIDRs:
admin_password = "Ch@ngeMe2024!"
admin_cidr = "203.0.113.42/32"
agent_cidr = "10.0.0.0/8"
ssh_cidr = "203.0.113.42/32"
3. Deploy
terraform init
terraform plan
terraform apply
Terraform
applycompletes in ~2 minutes (VM provisioned). The Wazuh bootstrap continues in the background for 20–30 minutes. Monitor progress:
4. Access the dashboard
terraform output dashboard_url
Log in with admin / admin_password. Accept the self-signed certificate warning (or install a trusted certificate later).
5. Install agents on monitored hosts
On each host you want to monitor:
curl -s https://packages.wazuh.com/key/GPG-KEY-WAZUH | apt-key add -
echo "deb https://packages.wazuh.com/4.x/apt/ stable main" \
| tee /etc/apt/sources.list.d/wazuh.list
apt-get update && apt-get install -y wazuh-agent
# Configure the manager address
WAZUH_MANAGER="$(terraform output -raw agent_manager_ip)" \
systemctl start wazuh-agent
systemctl enable wazuh-agent
Security Recommendations
-
Always restrict
admin_cidrto your management IP. The Wazuh dashboard contains full security event data for your infrastructure. -
Restrict
agent_cidrto the CIDR of your monitored infrastructure, not0.0.0.0/0. This prevents arbitrary agents from enrolling. -
Replace the self-signed certificate. The quick-install generates a self-signed cert. For production, use a proper certificate — either via Let's Encrypt (requires a domain) or your own CA.
Troubleshooting
Dashboard not loading after 30 minutes
ssh ubuntu@$(terraform output -raw vm_public_ip)
sudo tail -50 /var/log/wazuh-install.log
sudo systemctl status wazuh-indexer wazuh-manager wazuh-dashboard
The most common cause is insufficient RAM — verify the VM has at least 16 GB and that OpenSearch is not OOM-killed:
sudo journalctl -u wazuh-indexer -n 50
dmesg | grep -i "killed process"
Login fails after deploy
The password change may have failed. Check the log:
sudo cat /var/log/wazuh-password-change.log
If needed, SSH into the VM and re-run the password tool manually:
sudo bash /root/wazuh-install-files/wazuh-passwords-tool.sh \
-u admin -p "YourNewPassword" -A
sudo systemctl restart wazuh-indexer wazuh-manager wazuh-dashboard