Kubernetes : Configure Manager Node

Configure Multi Nodes Kubernetes Cluster. This example is based on the environment like follows. For System requirements, each Node has unique Hostname, MAC address, Product_uuid. MAC address and Product_uuid are generally already unique one if you installed OS on physical machine or virtual machine with common procedure. You can see Product_uuid with the command [dmidecode -s system-uuid]. +----------------------+ +----------------------+ | [ ctrl.srv.world ] | | [ dlp.srv.world ] | | Manager Node | | Control Plane | +-----------+----------+ +-----------+----------+ eth0|10.0.0.25 eth0|10.0.0.30 | | ------------+--------------------------+----------- | | eth0|10.0.0.51 eth0|10.0.0.52 +-----------+----------+ +-----------+----------+ | [ node01.srv.world ] | | [ node02.srv.world ] | | Worker Node#1 | | Worker Node#2 | +----------------------+ +----------------------+

[1]	Configure Manager Node first.

root@ctrl:~#  apt -y install nginx libnginx-mod-stream curl gpg root@ctrl:~#  vi /etc/nginx/nginx.conf # add to last line : proxy settings stream { upstream k8s-api { server 10.0.0.30:6443; } server { listen 6443; proxy_pass k8s-api; } } # disable default site on Nginx root@ctrl:~#  unlink /etc/nginx/sites-enabled/default root@ctrl:~#  systemctl restart nginx

[2]	On Manager Node, Install Kubernetes client.

root@ctrl:~#  curl -fsSL https://pkgs.k8s.io/core:/stable:/v1.33/deb/Release.key | gpg --dearmor -o /etc/apt/keyrings/kubernetes-apt-keyring.gpg root@ctrl:~#  echo "deb [signed-by=/etc/apt/keyrings/kubernetes-apt-keyring.gpg] https://pkgs.k8s.io/core:/stable:/v1.33/deb/ /" | tee /etc/apt/sources.list.d/kubernetes.list root@ctrl:~#  apt update root@ctrl:~#  apt -y install kubectl