k8s 1.30

1.instala_kubernetes.sh

@@ -1,7 +1,6 @@
 #!/bin/bash
 
 # Variables
-#KUBERNETES_VERSION="1.28.2-00" # Cambia por la versión que necesites
 USER="curso" # Usuario con acceso sudo
 
 # Actualizar sistema
@@ -49,33 +48,31 @@ sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubun
 
 # Install containerd
 sudo apt update
-sudo apt install -y containerd.io
+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
+# 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
 
 # restart containerd
 sudo systemctl restart containerd
-sudo systemctl enable containerd
-systemctl status  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
+### 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:/v1.32/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
+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/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
+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
@@ -90,22 +87,16 @@ 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
+#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 sed -i 's/SystemdCgroup = false/SystemdCgroup = true/' /etc/containerd/config.toml
+#    sudo systemctl restart containerd
+#    sudo systemctl enable containerd
 
 sudo kubeadm config images pull
 

2.levanta_cluster.sh

@@ -3,11 +3,13 @@
 # Variables
 USER="curso" # Usuario con acceso sudo
 
-# Inicializar el nodo maestro (opcional)
-read -p "¿Quieres inicializar el nodo maestro ahora? (y/n): " INIT_MASTER
-if [ "$INIT_MASTER" == "y" ]; then
+
+
 echo "Inicializando el nodo maestro..."
-    sudo kubeadm init --pod-network-cidr=174.24.0.0/16 --cri-socket=unix:///run/containerd/containerd.sock --upload-certs --control-plane-endpoint=k8scp
+sudo kubeadm init --control-plane-endpoint=k8scp
+
+
+# sudo kubeadm init --pod-network-cidr=174.24.0.0/16 --cri-socket=unix:///run/containerd/containerd.sock --upload-certs --control-plane-endpoint=k8scp
 
 # Configurar kubectl para el usuario
 echo "Configurando kubectl para el usuario $USER..."
@@ -15,8 +17,6 @@ if [ "$INIT_MASTER" == "y" ]; then
 sudo cp -i /etc/kubernetes/admin.conf /home/$USER/.kube/config
 sudo chown $(id -u $USER):$(id -g $USER) /home/$USER/.kube/config
 
-else
-    echo "Nodo maestro no inicializado. Ejecuta 'kubeadm init' manualmente si deseas configurarlo más tarde."
-fi
+# eliminar restriccion de pods en el master
+kubectl taint nodes --all node-role.kubernetes.io/control-plane-
 
-echo "Instalación de Kubernetes completada."

3.instala_calico.sh

@@ -2,6 +2,11 @@
 
 # Variables
 
+kubectl apply -f https://raw.githubusercontent.com/projectcalico/calico/v3.29.1/manifests/calico.yaml
+
+
+
+
 # Instalar red de pods (Calico)
 echo "Instalando la red de pods (Calico)..."
 

4.prueba_k8s.sh

@@ -0,0 +1,16 @@
+#!/bin/bash
+
+# Variables
+
+kubectl create ns demo-app
+kubectl create deployment nginx-app --image nginx --replicas 2 --namespace demo-app
+kubectl get deployment -n demo-app
+kubectl get pods -n demo-app
+
+kubectl run test-pod2 --image=busybox -- sleep 3600
+
+kubectl create deployment gitea-app2 --image gitea/gitea:latest --replicas 2 --namespace demo-app
+
+kubectl describe pod nginx-app --namespace demo-app | less
+
+kubectl delete deployment gitea-app --namespace demo-app

README.md

@@ -1,2 +1,4 @@
 # infra_cloudinit
 
+https://www.linuxtechi.com/install-kubernetes-on-ubuntu-24-04/
+