k3s cluster alpine

k3s cluster alpine

export PS1='\u@\h:\W# ' - /etc/profile для удобного отображения текущей ssh сессии

sed -i '/community/s/^#//' /etc/apk/repositories
apk add curl sudo mc htop iptables ip6tables

rc-update add k3s default
service k3s start
rc-update show
rc-status

========================================================================================================================
systemctl status k3s

/usr/local/bin/k3s-uninstall.sh

rm -rf /var/lib/rancher/k3s
rm -rf /etc/rancher/k3s
rm -rf /var/lib/rancher/k3s
rm -rf /var/lib/rancher
rm -rf /var/lib/kubelet
rm -rf /etc/cni
rm -rf /var/lib/cni
rm -rf /opt/cni
rm -rf /run/k3s
rm -rf /run/flannel
rm -rf ~/.kube


=====================================================MASTER NODES===========================================================


curl -sfL https://get.k3s.io | sh -s - server \
  --cluster-init \
  --tls-san 192.168.100.20 \
  --tls-san 192.168.100.21 \
  --tls-san k3s.example.com \
  --disable traefik \
  --write-kubeconfig-mode 644
  
curl -sfL https://get.k3s.io | sh -s - server \
  --server https://192.168.100.20:6443 \
  --token K10f8b374a407feabe86c2324522363068b61a2ae14f71b8b2714b4f7aded7c4306::server:c35a5712ce0a2522e2b8dd174c858ea2 \
  --tls-san 192.168.100.20 \
  --tls-san=192.168.100.22 \
  --tls-san=k3s.example.com \
  --disable=traefik \
  --debug
  
curl -sfL https://get.k3s.io | sh -s - server \
  --server https://192.168.100.20:6443 \
  --token K10f8b374a407feabe86c2324522363068b61a2ae14f71b8b2714b4f7aded7c4306::server:c35a5712ce0a2522e2b8dd174c858ea2 \
  --tls-san 192.168.100.20 \
  --tls-san=192.168.100.23 \
  --tls-san=k3s.example.com \
  --disable=traefik  
  
==================================================WORKER NODES===============================================================
  
curl -sfL https://get.k3s.io | K3S_URL=https://192.168.100.20:6443 K3S_TOKEN=K10f8b374a407feabe86c2324522363068b61a2ae14f71b8b2714b4f7aded7c4306::server:c35a5712ce0a2522e2b8dd174c858ea2 sh -

=====================================================flux cd integration ====================================================
mkdir -p /root/.kube
cat /etc/rancher/k3s/k3s.yaml >> /root/.kube


=====================================================haproxy=================================================================

global
  log         127.0.0.1 local2
  pidfile     /var/run/haproxy.pid
  maxconn     4000
  daemon
defaults
  mode                    http
  log                     global
  option                  dontlognull
  option http-server-close
  option                  redispatch
  retries                 3
  timeout http-request    10s
  timeout queue           1m
  timeout connect         10s
  timeout client          1m
  timeout server          1m
  timeout http-keep-alive 10s
  timeout check           10s
  maxconn                 3000
  
listen api-server-6443
  bind 192.168.100.20:6443
  mode tcp
  server master1 192.168.100.21:6443 check inter 1s
  server master2 192.168.100.22:6443 check inter 1s
  server master3 192.168.100.23:6443 check inter 1s