Downstream

disable swap

swapoff -a
grep '#/swap' /etc/fstab >/dev/null || sed -i '/\/swap.*swap/s/^\/swap/#\/swap/' /etc/fstab
grep '#/swapfile.*swap' /etc/fstab >/dev/null || sed -i '/\/swapfile.*swap/s/^\/swapfile/#\/swapfile/' /etc/fstab
rm -r /swap* &>/dev/null

setting

tee /etc/modules-load.d/containers.conf<<EOF
br_netfilter
overlay
fuse
EOF

tee /etc/sysctl.d/containers.conf<<EOF
net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1
net.ipv4.ip_forward = 1
EOF

Setting ipv46

sudo tee /etc/sysctl.d/ipv46.conf<<EOF
net.ipv4.ip_forward = 1
net.ipv4.conf.all.accept_redirects = 0
net.ipv4.conf.all.send_redirects = 0

net.ipv6.conf.all.disable_ipv6 = 1
net.ipv6.conf.default.disable_ipv6 = 1
net.ipv6.conf.lo.disable_ipv6 = 1
EOF

建立好K8S Cluster 後將 rke2 工具複製到 /usr/local/bin/ 目錄

# 每台 Node 都要執行
# m1
sudo cp /opt/rke2/bin/* /usr/local/bin/
ssh m1 sudo cp /opt/rke2/bin/* /usr/local/bin/
ssh w1 sudo cp /opt/rke2/bin/* /usr/local/bin/
ssh w2 sudo cp /opt/rke2/bin/* /usr/local/bin/

# 檢視 rke2 service-master
sudo systemctl status rke2-server.service
ssh m1 sudo systemctl status rke2-agent.service
ssh w1 sudo systemctl status rke2-agent.service
ssh w2 sudo systemctl status rke2-agent.service

查看K8S

journalctl -xeu rke2-agent.service

Copy file

mkdur $HOME/.kube

sudo cp /etc/rancher/rke2/rke2.yaml $HOME/.kube/config2

sudo chown $(id -u):$(id -g) $HOME/.kube/config2

# Master Cluster的身分驗證
kubectl  --kubeconfig=$HOME/.kube/config2 get nodes