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k8s/1.instala_kubernetes.sh

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+#!/bin/bash
+
+# Variables
+USER="curso" # Usuario con acceso sudo
+
+# Actualizar sistema
+echo "Actualizando el sistema..."
+sudo apt-get update && sudo apt-get upgrade -y
+
+# Desactivar swap (requisito de Kubernetes)
+## echo "Desactivando swap..."
+## sudo swapoff -a
+## sudo sed -i '/ swap / s/^\(.*\)$/#\1/g' /etc/fstab
+
+
+# Habilitar módulos necesarios para Kubernetes
+echo "Habilitando módulos del kernel..."
+sudo modprobe overlay
+sudo modprobe br_netfilter
+
+
+# Configure persistent loading of modules
+# sudo tee /etc/modules-load.d/k8s.conf <<EOF
+sudo tee /etc/modules-load.d/containerd.conf <<EOF
+overlay
+br_netfilter
+EOF
+
+# Requisitos para Kubernetes
+cat <<EOF | sudo tee /etc/sysctl.d/kubernetes.conf
+net.bridge.bridge-nf-call-ip6tables = 1
+net.bridge.bridge-nf-call-iptables = 1
+net.ipv4.ip_forward = 1
+EOF
+
+sudo sysctl --system
+
+
+
+# Install required packages
+sudo apt install curl gnupg2 software-properties-common apt-transport-https ca-certificates -y
+
+
+# Add Docker repo
+curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /etc/apt/trusted.gpg.d/docker-archive-keyring.gpg
+
+sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable" -y
+
+# Install containerd
+sudo apt update
+sudo apt install containerd.io -y
+
+# Configure containerd and start service
+# sudo mkdir -p /etc/containerd
+sudo containerd config default|sudo tee /etc/containerd/config.toml >/dev/null 2>&1
+sudo sed -i 's/SystemdCgroup \= false/SystemdCgroup \= true/g' /etc/containerd/config.toml
+sudo sed -i 's/pause:3.8/pause:3.10/g' /etc/containerd/config.toml
+
+# restart containerd
+sudo systemctl restart containerd
+# sudo systemctl enable containerd
+# systemctl status  containerd
+
+
+
+
+
+
+# Configurar el repositorio de Kubernetes
+echo "Agregando el repositorio de Kubernetes..."
+### sudo apt-get install apt-transport-https ca-certificates curl -y
+# If the folder `/etc/apt/keyrings` does not exist, it should be created before the curl command, read the note below.
+# sudo mkdir -p -m 755 /etc/apt/keyrings
+##### curl -fsSL https://pkgs.k8s.io/core:/stable:/v1.30/deb/Release.key | sudo gpg --dearmor -o /etc/apt/keyrings/k8s.gpg
+curl -fsSL https://pkgs.k8s.io/core:/stable:/v1.32/deb/Release.key | sudo gpg --dearmor -o /etc/apt/keyrings/kubernetes-apt-keyring.gpg
+#sudo chmod 644 /etc/apt/keyrings/kubernetes-apt-keyring.gpg # allow unprivileged APT programs to read this keyring
+
+# This overwrites any existing configuration in /etc/apt/sources.list.d/kubernetes.list
+##### echo 'deb [signed-by=/etc/apt/keyrings/k8s.gpg] https://pkgs.k8s.io/core:/stable:/v1.30/deb/ /' | sudo tee /etc/apt/sources.list.d/k8s.list
+echo 'deb [signed-by=/etc/apt/keyrings/kubernetes-apt-keyring.gpg] https://pkgs.k8s.io/core:/stable:/v1.32/deb/ /' | sudo tee /etc/apt/sources.list.d/kubernetes.list
+#sudo chmod 644 /etc/apt/sources.list.d/kubernetes.list   # helps tools such as command-not-found to work correctly
+
+
+#curl -fsSL https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo gpg --dearmor -o /usr/share/keyrings/kubernetes-archive-keyring.gpg
+#echo "deb [signed-by=/usr/share/keyrings/kubernetes-archive-keyring.gpg] https://apt.kubernetes.io/ kubernetes-xenial main" | sudo tee /etc/apt/sources.list.d/kubernetes.list
+
+# Instalar Kubernetes
+echo "Instalando Kubernetes (kubeadm, kubelet, kubectl)..."
+sudo apt-get update
+#sudo apt-get install -y kubelet=$KUBERNETES_VERSION kubeadm=$KUBERNETES_VERSION kubectl=$KUBERNETES_VERSION
+sudo apt-get install kubelet kubeadm kubectl -y
+sudo apt-mark hold kubelet kubeadm kubectl
+
+
+
+# Instalar containerd
+#echo "Instalando containerd..."
+#    sudo apt-get install -y containerd
+#    sudo mkdir -p /etc/containerd
+#    containerd config default | sudo tee /etc/containerd/config.toml
+
+    # Configurar containerd para usar systemd como driver de cgroup
+#    sudo sed -i 's/SystemdCgroup = false/SystemdCgroup = true/' /etc/containerd/config.toml
+#    sudo systemctl restart containerd
+#    sudo systemctl enable containerd
+
+#sudo kubeadm config images pull
+