Minimum Requirements for ZETALY BI in Linux Environments

Below are descriptions and explanations describing the minimum requirements for ZETALY BI in Linux environments.

Supported Browsers

The ZETALY BI Web Application runs in the following HTML5 supported browsers:

• Microsoft Edge

• Google Chrome
• Firefox
• Safari version 7 and higher
  ZETALY BI  supports Safari 10 and higher when embedding iFrames.

The ZETALY BI Web Application also works in mobile phone and tablet browsers that support HTML5.

Minimum System Requirements

The ZETALY BI Linux deployment is certified to run on the following operating systems.

Note the following:

• ZETALY BI supports only x86-64/AMD64 architecture (e.g., ARM64 currently not supported). You can verify this by running the "hostnamectl" command in Linux to confirm the current architecture in place (e.g., Architecture: x86-64).
• The OS versions specified below are also based on the minor release number, and should be taken into consideration to ensure proper compatibility (e.g., CentOS 8.4 is not currently supported as it is not specified below).
• The OS needs to be an official release of the given Linux OS, and one that has not been customized (e.g., where the OS was modified to harden the kernel).

Minimum Hardware Requirements

Ensure that your system has at least the following hardware requirements:

• 8 CPUs
• The memory requirements specified in the recommended deployment sizes table

Recommended Deployment Sizes

The table below describes the minimum requirements for your production deployment. The exact deployment parameters depend on your specific use-case and usage needs.

Notes:

It is possible for a deployment with machines that have more memory and cores to exceed the large-scale recommendations.

• Your Linux deployment must use AVX2 (also known as Haswell New Instructions).
• The kernel version is held due to the limitation with GlusterFS Fuse.
• For cluster deployments that use a shared storage, the following requirements are for the cluster’s first three nodes. Each of the first three nodes must have a second unformatted, unmounted, and unpartitioned hard disk with at least 400GB disk space available, plus additional storage for the ElastiCubes.
• For Azure systems that have a 30GB default capacity, you must stop the instance and expand the OS disk capacity up to 300GB before proceeding with installation. ZETALY BI supplies specific scripts to assist you with expanding the disk capacity
• NVMe disks are recommended for the second disk.
  If NVMe disks are not used in your system, SSDs are mandatory.
  ZETALY BI does not support systems running with HDD.
• AWS disk IOPS is determined by a formula.
  EBS gets 250MB/s at 3000 IOPS at the peak, but tokens are provided depending on the disk size.
• Servers must be connected to the internet and must have network access to a Docker Hub.
• The network between the servers must reach at least 1 Gbps.
• The installation requires the user/password or SSH key. In a multi-node deployment, the same user credentials (password/SSH key) must be defined on all of the server nodes.
• See Integrating ZETALY BI with Portworx if your environment uses the Portworx platform for end-to-end storage and data management solution on the Kubernetes cluster.
• Set kubernetes_minimum_pods to 58 per node.

Kubernetes compatibility

• Kubernetes types supported (for pre-built Kubernetes clusters):
  • AWS Elastic Kubernetes Service
  • Google Cloud Engine
  • Azure Kubernetes Service
  • RedHat OpenShift
• ZETALY BI on Linux supports Kubernetes versions 1.17 through 1.24

Open Ports Requirements

Linux outbound ports:

• 443
• 80

The following inbound and outbound ports must be open in the server’s firewall before the installation.

Server Connectivity Requirements

The servers must be connected to the Internet and must have network access to the following server list:

• apt.dockerproject.org
• archive.ubuntu.com
• auth.cloud.sisense.com
• bitbucket.org
• bugs.launchpad.net
• dl.fedoraproject.org
• docs.docker.com
• docs.helm.sh
• download.docker.com
• github.com
• gcr.io
• github.com
• grafana.com
• help.ubuntu.com
• index.docker.io
• kubernetes.io
• l.sisense.com
• mirror.centos.org
• ppa.launchpad.net
• pypi.python.org
• quay.io
• registry-1.docker.io
• storage.googleapis.com
• www.ubuntu.com
• yum.dockerproject.org

Default Packages Repository

Before installing ZETALY BI, ensure that the default packages repository for your Linux distribution is configured and enabled. ZETALY BI installer requires this as it installs the following packages:

• python 3
• python3-pip
• nc
• sshpass
• jq
• libselinux-python3
• dbus (for Ubuntu only)

For RHEL/Centos Linux, access to dl.fedoraproject.org and all its mirrors (cdn.redhat.com network - details are here: https://access.redhat.com/articles/1525183) is required to successfully install all the above packages.

Check that the packages repository is pre-installed on your server as follows:

Verification commands (for RHEL/Centos):

sudo yum install gawk 
sudo yum install https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
 sudo yum install --enablerepo="epel" python3-pip nc sshpass jq libselinux-python3 

Verification commands for Ubuntu:

sudo apt-get update sudo apt-get install python3 netcat sshpass python3-apt python3-pip dbus sudo apt-get install jq

python3 and pip

python3 and pip must be accessible from terminal via the commands:

python3 pip

Verification commands:

sudo python3 -m pip install --upgrade --force-reinstall pip sudo python3 -m pip install configparser zipp sudo python3 -m pip install -r kubespray/requirements.txt --ignore-installed (from the installation folder)

The DNS must be configured

The DNS must be configured in the system. This is needed to resolve:

• the Docker registry
• The DNS server must be accessible from the Kubernetes nodes where ZETALY BI is deployed, for ZETALY BI component interconnections to function properly.

Whitelisted Resources

The following whitelisted resources must be added:

• cdn.redhat.com (for details, see https://access.redhat.com/articles/1525183)
• pypi.org to install python modules