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Confluent

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What Confluent is

Confluent is software for bootstrapping and operating groups of servers, including operating-system deployment, hardware control, console management, telemetry, and device onboarding. It supports clusters from a handful of nodes to many thousands on x86_64 and aarch64 architectures. It provisions stateful and stateless images through PXE, HTTP(S) boot, or virtual media, with customization during deployment. Devices can be discovered through generic PXE systems or hardware managers and onboarded by serial number, MAC address, switch port, or physical location. Hardware management includes power, boot selection, BIOS/UEFI/BMC settings, RAID, health checks, telemetry, virtual media, and support data through IPMI, Redfish, and vendor plugins. Operators can use Linux commands, a command-line browser, a Python client, a web UI, or a REST API. Collective mode connects servers behind one interface for high availability and scale-out operation. Confluent is free under the Apache 2.0 license. Management server installation is documented for Enterprise Linux 8.6 or higher, SUSE Linux Enterprise 15 SP4 or higher, and Ubuntu 22.04 or 24.04. Firewall changes may be required for HTTPS and, depending on deployment, network boot ports.

Who it suits

Confluent suits administrators managing server clusters and their operating-system deployment, hardware, and console access. The documentation recommends installing it directly for most users; users relying on xCAT-exclusive features can run both together.

What it does well

  • Supports clusters from a handful of nodes to many thousands.
  • Deploys stateful and stateless images using several boot methods.
  • Provides hardware management through IPMI, Redfish, and plugins.
  • Offers command-line, Python, web, and REST interfaces.
  • Free under the Apache 2.0 license.

What to know first

  • Installation requires a listed supported management-server OS.
  • Firewall settings may need adjustment.
  • xCAT-exclusive features may require running both projects.

Limits

There is no paid-plan limit stated; Confluent is described as free. Installation guidance specifies supported management-server OS releases, and firewall changes may be needed for HTTPS and network boot.

Getting started

  1. Open the Confluent documentation website.
  2. Choose a supported management server OS: Enterprise Linux 8.6 or later, SUSE Linux Enterprise 15 SP4 or later, or Ubuntu 22.04 or 24.04.
  3. Use the installation guidance for the relevant distribution; repositories are covered for Red Hat Enterprise Linux, AlmaLinux, Rocky Linux, Ubuntu, and SUSE Linux Enterprise.
  4. Adjust firewall rules for HTTPS and, depending on the deployment method, network boot ports.
  5. Operate through Linux commands, confetty, the Python client, the web UI, or the REST API.

Verdict

Confluent covers server provisioning, hardware operations, and cluster management through several interfaces. Check the documented management-server OS and firewall requirements before deployment.

Questions

How much does Confluent cost?

Confluent is free, and the project repository states that it is available under the Apache 2.0 license.

What operating systems can host the management server?

The installation documentation lists Enterprise Linux 8.6 or higher, SUSE Linux Enterprise 15 SP4 or higher, and Ubuntu 22.04 or 24.04.

How can operators access Confluent?

Interfaces include Linux commands, the confetty command-line browser, a Python client library, a web UI, and a REST API over HTTP.

What deployment methods does it support?

It provisions stateful and stateless images using PXE, HTTP(S) boot, or virtual media.

Does Confluent work with xCAT?

The documentation recommends direct Confluent installation for most users. Users relying on xCAT-exclusive features can run both together.

Facts from Confluent's own pages

Availability
Collective mode can span one Confluent interface across multiple servers for high availability and large fleets. · xcat2.github.io, 30 Sept 2026
Console management
Console management provides multi-user access arbitration, timestamped logging, and VT-aware buffering for reconnects. · xcat2.github.io, 30 Sept 2026
Deployment
It can provision stateful and stateless images over PXE, HTTP(S) boot, or virtual media, with customization at each phase. · xcat2.github.io, 30 Sept 2026
Discovery
It can detect generic PXE systems or hardware managers and onboard devices by serial number, MAC address, switch port, or physical location. · xcat2.github.io, 30 Sept 2026
Hardware management
It supports power, boot-device selection, BIOS/UEFI/BMC settings, RAID storage controllers, health checks, telemetry, virtual media, and support data through IPMI, Redfish, and vendor plugins. · xcat2.github.io, 30 Sept 2026
Installation requirement
A default installation has firewall restrictions that must be adjusted for HTTPS and, depending on deployment method, additional network boot ports. · xcat2.github.io, 29 Sept 2026
Intended users
The documentation recommends installing Confluent directly for most users, especially those without an existing xCAT installation, while users relying on xCAT-exclusive features can run both together. · xcat2.github.io, 29 Sept 2026
Interfaces
Users can operate Confluent through Linux commands, the confetty command-line browser, a Python client library, or a REST API over HTTP. · xcat2.github.io, 30 Sept 2026
License
The project repository states that Confluent is available under the Apache 2.0 license. · github.com, 29 Sept 2026
Network topology
It centralizes access to MAC address tables and LLDP information across switches through one interface. · xcat2.github.io, 30 Sept 2026
Notable limitation
The documentation recommends installing Confluent directly for most users and describes using it alongside xCAT when xCAT-exclusive features are needed. · xcat2.github.io, 30 Sept 2026
Operating systems
The download instructions cover repositories for Red Hat Enterprise Linux, AlmaLinux, Rocky Linux, Ubuntu, and SUSE Linux Enterprise. · xcat2.github.io, 30 Sept 2026
Purpose
Confluent handles server-cluster bootstrap and day-to-day operations, including OS deployment, hardware control, console management, telemetry, and device onboarding. · xcat2.github.io, 30 Sept 2026
Scale
The documentation says Confluent supports clusters from a handful of nodes to many thousands, on x86_64 and aarch64 architectures. · xcat2.github.io, 29 Sept 2026
Scale and architecture
It supports clusters from a handful of nodes to many thousands and supports x86_64 (amd64) and aarch64 (arm64). · xcat2.github.io, 30 Sept 2026
Security
The documentation describes validated TLS for collective, deployment, and hardware-management traffic, TPM2 support for boot-volume protection and persistent node trust, SSH PKI, and Secure Boot support for media and HTTP boot. · xcat2.github.io, 30 Sept 2026
Supported management server OS
The installation documentation lists Enterprise Linux 8.6 or higher, SUSE Linux Enterprise 15 SP4 or higher, and Ubuntu 22.04 or 24.04 for installation. · xcat2.github.io, 29 Sept 2026

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