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Architecture

Technologies
Components within a Kubernetes Cluster

Features

Roadmap

Release methodology
Roadmap
- HA Kubernetes Control Plane
- Kubernetes service type:LoadBalancer
Global kube-vip items

Production Usage

kube-vip Maturity
Adoption
Key Usage

Modes

ARP

BGP

- Configuration overview

Routing Tables

- Configuration overview

Wireguard

Upgrade

Upgrade using manifest

Installation

Static Pods

kube-vip as HA, Load Balancer, or both
Generating a Manifest

DaemonSet

kube-vip as HA, Load Balancer, or both
Create the RBAC settings
Generating a Manifest

Flags and Environment Variables

Flags
Environment Variables

Usage

Kubernetes Load-Balancer service

Configure kube-vip to ignore a service
Kubernetes LoadBalancer Class (Kubernetes v1.24+) (kube-vip v0.5.0+)
- Default behavior
- Optional behavior
Multiple services on the same IP
Load Balancing Load Balancers (when using ARP mode, yes you read that correctly) (kube-vip v0.5.0+)
External traffic policy (kube-vip v0.5.0+)
Using DHCP for Load Balancers (experimental) (kube-vip v0.2.1+)
- DCHP hostname support
Using UPnP to expose a Service to the outside world
- Enable UPnP
- Exposing a Service with UPnP

kube-vip ❤️ goBGP

BGP Multi-Protocol

On-Premises (kube-vip-cloud-controller)

Cloud Controller Manager
Using the kube-vip Cloud Provider
Install the kube-vip Cloud Provider
Create a global CIDR or IP Range
- The kube-vip Cloud Provider ConfigMap
- Expose a Service

Routing Table Mode

Some neat infos about this mode
Use BIRD to read routes from kube-vips table
- Peering
- Route Filtering
Look into your routing tables in Bird

K3s

Prerequisites (on Equinix Metal)
Clean Environment
Step 1: Create Manifests Folder
Step 2: Upload kube-vip RBAC Manifest
Step 3: Generate a kube-vip DaemonSet Manifest
Step 4: Install a HA K3s Cluster
Step 5: Service Load Balancing

KinD

Deploying KIND
Find Address Pool for kube-vip
Deploy the kube-vip Cloud Controller
Add our Address range
Install kube-vip
Create RBAC settings
Deploy kube-vip as a DaemonSet
Test

Multi-Tenancy

Multiple kube-vip deployments
- RBAC (per namespace) for kube-vip
Deploying kube-vip into a namespace

Wireguard

Pre-requisistes
Architecture
- Secrets

Egress

Kubernetes Networking
Kubernetes Egress traffic
- Kubernetes Egress problems
kube-vip Egress

rancher desktop

Disable the existing Load Blancer
Applying kube-vip

Equinix Metal

BGP with Equinix Metal
Configure to use a container runtime
Creating HA clusters in Equinix Metal
- Creating a manifest using the API
- Creating a manifest using the metadata
Load Balancing services on Equinix Metal
Troubleshooting

Openshift

Creating a project in your OpenShift cluster
Creating a Security Context Constraints for kube-vip

Troubleshooting

Troubleshooting ARP

Failover times
- Testing access

Troubleshooting Egress

Error Message Error configuring egress for loadbalancer
Using the Calico CNI
Dangling rules in iptables
Finding the iptables rules
- Mangle rules
- Destination NAT rules

Troubleshooting RoutingTable

Check IPv4 Routes
Check IPv6 Routes
Monitor Route Events

Troubleshooting Services

Service stuck in <pending>

Troubleshooting Wireguard

Wireguard

kube-vip ❤️ goBGP

BGP Multi-Protocol

The goBGP-speaker has support for multi-protocol BGP sessions.

It supports the following modes

IPv4 over IPv6 next-hop
IPv6 over IPv4 next-hop

Kubernetes Load-Balancer service

On-Premises (kube-vip-cloud-controller)

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