About These instructions have been tested on BCM 10.0 (release 10.25.03), Kubernetes 1.29. Later releases of BCM and Kubernetes are also supported. By default, the etcd service deployed on a BCM managed Kubernetes cluster will listen on all interfaces (0.0.0.0). For security reasons, a site may wish to restrict the…
These instructions were tested on BCM 10.24.11a and Kubernetes 1.29. By default, the kube-apiserver in Kubernetes accepts requests from clients using TLS v1.2 ciphers. In some circumstances you may wish to disable this medium strength cipher and only accept the strong TLS v.1.3 cipher. The kube-apiserver daemon accepts the “tls-min-version”…
Preamble There are several paths available for upgrading the operating system of a BCM Cluster. In this article, we will attempt to break down the upgrade process into separate sections, which may be applied to your cluster environment. It is worth noting in Bright 9.0 and later releases, Multi-OS and…
About: This article contains Kubernetes resource quota examples for limiting GPU usage per namespace. For further information on setting resources quotas against namespaces in Kubernetes: https://kubernetes.io/docs/concepts/policy/resource-quotas/#viewing-and-setting-quotas Applying a resource quota In this example, we have the user “john” who has a Kubernetes namespace called “john-restricted”. In order to define limits…
About: This article contains Ansible code examples for implementing the Bright Computing Galaxy module. https://galaxy.ansible.com/brightcomputing Requirements: These instructions have been tested on Bright 9.2 (9.2-13) and later releases. Functional Ansible environment (Python 3.9, Ansible 2.10+) Setup the Ansible environment: There are a number of approaches to installing Ansible. This approach…
About This article discusses building a RHEL 8.6 software image, specifically on multi-distribution clusters. These steps were developed for Bright 9.2 and later releases on a SLES 15 SP4 / Ubuntu 20.04/22.04 headnode. For additional information on multi-distribution support in Bright Cluster Manager, please review the appropriate section in the…
Installation instructions are available in the Dell OpenManage repositories. Dell OpenManage Repository The following example will install OpenManage version 11 on an Ubuntu 22.04 headnode. apt-get install gpg libssl-dev echo ‘deb http://linux.dell.com/repo/community/openmanage/11000/jammy jammy main’ | sudo tee -a /etc/apt/sources.list.d/linux.dell.com.sources.list apt-get update sudo wget https://linux.dell.com/repo/pgp_pubkeys/0x1285491434D8786F.asc sudo apt-key add 0x1285491434D8786F.asc apt update…
Introduction This article describes deploying KubeClarity onto a Bright-managed Kubernetes cluster for the purposes of security auditing and monitoring. The developer of this tool describes it as: “KubeClarity is a tool for detection and management of Software Bill Of Materials (SBOM) and vulnerabilities of container images and filesystems. It scans…
Caveats This information is valid at the time of writing (9.2-6 release). Currently, the installation of a cluster requires an ethernet interface, configured as “internalnet”. This is needed to generate a valid license file and associated certificates. Selecting Infiniband-only interfaces in the Bright Installer at the “Head node interfaces” step…
This article discusses deploying a NICE DCV server on Bright managed compute nodes.We recommend reviewing the excellent third-party NICE DCV upstream documentation, which is available here: NICE DCV (amazon.com) Before we start… This article doesn’t seek to replace the upstream documentation, rather details the integration with Bright Cluster Manager. This…