Prerequisites

Ondat requirements to be executed. Hardware, Network rules, Operative System Distribution, Kernel modules, etc.

Prerequisites for using Ondat

One machine with the following:

Minimum two core with 4GB RAM
Linux with a 64-bit architecture
Kubernetes 1.20+ with an N-4 release support where N is the current k8s release.
Container Runtime Engine: CRI-O, Containerd or Docker 1.10+ with mount propagation enabled
The necessary ports should be open. See the ports and firewall settings
Etcd cluster for Ondat
A mechanism for device presentation

Prepare a cluster with minimum of 5 nodes when running etcd within Kubernetes for replication and high availability; 3 nodes if etcd is outside Kubernetes or a self-eval cluster
Install the Ondat CLI
If using Helm2, make sure the tiller ServiceAccount has enough privileges to create resources such as Namespaces, ClusterRoles, etc. For instance, following this installation procedure
System clocks synchronized using NTP or similar methods. While our distributed consensus algorithm does not require synchronised clocks, it does help to more easily correlate logs across multiple nodes
A PID cgroup limit of 32768
Some aspects of product operation require kernel support for IPv6. See the IPv6 prequisites page