Installazione KuberAltro

Prereq: Iso Oracle linux 8.9 - 4VCPU 8Gbyte di RAM - 32Gbyte disco

Tutto in inglese solo tastiera e Timezone

Software selection: Minimal Install

Partizione: ol-root 30GiB - /boot 1024Mbyte

Settare in installazione IP e Hostname.

Settare Root Password

dnf update -y;
systemctl disable firewalld;
systemctl stop firewalld;
sudo setenforce 0;
sudo sed -i 's/^SELINUX=enforcing$/SELINUX=disabled/' /etc/selinux/config;
dnf install net-tools -y;
dnf install curl -y;
dnf install wget -y;
dnf install -y iproute-tc;
dnf install dnsutils -y
sudo yum install -y yum-utils;
reboot

sudo yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo;
sudo yum install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin;
sudo systemctl start docker;
sudo systemctl enable docker;
sudo docker run hello-world;

Mettere a posto il file hosts con la risoluzione dei nodi es.:

172.16.1.200 kuber01 kuber01.gazzi.net
172.16.1.201 kuber02 kuber02.gazzi.net

abilitare:

sudo sed -i 's/^disabled_plugins = \["cri"\]$/enabled_plugins = \["cri"\]/' /etc/containerd/config.toml
reboot

curl -sfL https://get.k3s.io | sh -
sudo systemctl status k3s
export KUBECONFIG=/etc/rancher/k3s/k3s.yaml
echo 'export KUBECONFIG=/etc/rancher/k3s/k3s.yaml' >> ~/.bashrc
source ~/.bashrc

Da Verificare:

sudo k3s server --disable traefik