heartshare/rke2-ha.md

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Created January 28, 2025 18:25

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Install RKE2-HA Kubernetes Cluster

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rke2-ha.md

Preparations

We need all machines up and running. At first we will setup the loadbalancer.

Loadbalancer Nginx Setup

$ cat /etc/hosts

####################################################################
#   IP                     FQDN                     ALIASES
#-------------- --------------------------- ------------------------

# Loadbalancer
<lb ip>                 <lb fqdn>                   <lb alias>

# K8s Server
<k8s server 1 ip>       <k8s server 1 fqdn>         CP_NODE_1 # <- We need the alias names in the nginx config
<k8s server 2 ip>       <k8s server 1 fqdn>         CP_NODE_2
<k8s server 3 ip>       <k8s server 1 fqdn>         CP_NODE_3