OVN-Kubernetes

• How to use Open Virtual Networking with Kubernetes
  • Install Open vSwitch kernel modules on all hosts.
  • Run DaemonSet and Deployment
• Setup
  • Kubernetes networking requirements:
  • Master initialization
  • Node initialization.
• Debugging
  • Overlay mode architecture diagram:
• Installing Kubernetes
• Fedora 32 setup for KIND
  • Change to use cgroupsv1 instead of cgroupsv2
  • Add systemd.unified_cgroup_hierarchy=0 in kernel command line. It will look like below
  • Run below command after add it. The below grub.cfg location is only of UEFI.
  • Verify
  • Change firewalld to use iptables instead of nftables
  • Install go
  • Set GOPATH in ~/.bashrc
  • Install KIND
  • Install kubectl
  • Install docker
  • Install ovn-kubernetes
  • Install kubernetes
  • Build kubernetes e2e.test binary
  • Start KIND cluster
  • export KUBECONFIG=$HOME/admin.conf
  • Run all network policy tests
  • Run a specific network policy test
• Installing OVS and OVN on Ubuntu
  • Installing OVS and OVN from packages
  • Installing OVS and OVN from sources
• Generating certificates
  • Create a certificate authority.
  • Generate signed certificates for OVN components running on the master.
  • Generate certificates for the nodes
• One time setup.
• OVN overlay network on Openshift
  • Overview
  • Daemonset
  • Docker Image
  • Configuration
• Generate signed certificates for OVN Northd
• CI Tests
  • Updating CI Test Suite
  • Running CI Locally
• Config variables
  • Initial setup
  • Config values
• Initial setup issues.
  • Each host should have unique system-ids.
  • All nodes should register with OVN SB database.
• Hosts should have unique node names.
  • Check the presence of “geneve” or “stt” kernel module.
  • Sanity check cross host ping.
  • Firewall blocking overlay networks
  • Check ovn-northd’s log file.
• Runtime issues
  • Check the watcher’s log file.
  • Check the OVN CNI log file.
  • Check the kubelet’s log file.
  • Check ovn-controller’s log file.
• EgressFirewall
  • Introduction
  • Example
• OVN central database High-availability
  • Master1 initialization
  • Master2, Master3… initialization
  • Start ‘ovn-kube -init-master’
  • start ovn-northd
  • Start ‘ovn-kube -init-node’
• Hybrid Overlay
  • Introduction
  • Requirements
• OVN kubernetes KIND Setup
  • Prerequisites
  • Run the KIND deployment
  • Usage Notes
  • Running OVN-Kubernetes with IPv6 or Dual-stack In KIND
  • KIND with IPv6
  • KIND with Dual-stack
• OVS Hardware Offload
  • Supported Ethernet controllers
  • Prerequisites
  • Worker Node SR-IOV Configuration
  • Worker Node SR-IOV network device plugin configuration
  • Worker Node Multus CNI configuration
  • Deploy POD with OVS hardware-offload
  • Verify Hardware-Offload is working
• Enable Node-Local Services Access in Shared Gateway Mode
  • Introduction
  • Current OVN Logical Topology
  • New OVN Logical Topology
  • References
• OVN Kubernetes Basics