ram

README.md

@@ -8,4 +8,20 @@ https://medium.com/@pabloperezaradros/install-kubernetes-1-28-e42ad9194d4f
 https://www.linuxtechi.com/install-kubernetes-on-ubuntu-24-04/
 
 
+#Crea una plantilla desde la VM
+
+PLANTILLA="919200"
+qm template $PLANTILLA
+
+
+# Ruta del archivo a modificar
+CONFIG_FILE="/etc/dhcpcd.conf"
+
+# Comentar la línea 'duid'
+sed -i 's/^duid/#duid/' "$CONFIG_FILE"
+
+# Descomentar la línea '#clientid'
+sed -i 's/^#clientid/clientid/' "$CONFIG_FILE"
+
+
 

clonar/0.crea_VM.sh

@@ -0,0 +1,32 @@
+# Crea variables
+# ID de VM
+VMID="920000"
+
+# lugar de almacenamiento para el disco
+### VMSTORAGE="VMs_storage-E"
+VMSTORAGE="local"
+
+# network
+### VMNET="k8s"
+VMNET="vmbr0"
+
+# hostname
+VMHOST="master"
+
+# Genera la configuracion inicial de CLoudInit
+./genera_yaml_k8s.sh
+
+# apaga y borra la VM si existe antes
+qm stop $VMID
+qm destroy $VMID
+
+qm create $VMID --name $VMHOST --memory 8192 --cores 4 --net0 virtio,bridge=$VMNET --cpu host --agent enabled=1 --tags clonar
+qm set $VMID --ide2 VMs_storage-E:cloudinit --boot c --bootdisk scsi0 --serial0 socket --vga serial0
+
+# qm importdisk $VMID /mnt/pve/ISOs_storage/template/iso/ubuntu-24.04-server-cloudimg-amd64.img VMs_storage-E --format qcow2
+qm importdisk $VMID /mnt/pve/ISOs_storage/template/iso/ubuntu-24.04-minimal-cloudimg-amd64.img local --format qcow2
+qm set $VMID --scsihw virtio-scsi-pci --scsi0 $VMSTORAGE:$VMID/vm-$VMID-disk-0.qcow2 
+qm disk resize $VMID scsi0 40G
+qm set $VMID --ipconfig0 ip=dhcp --cicustom "user=VMs_storage-E:snippets/user_data-clonar.yaml"
+
+qm start $VMID

clonar/50-cloud-init.yaml

@@ -0,0 +1,8 @@
+network:
+  version: 2
+  ethernets:
+    eth0:
+      dhcp4: true
+      dhcp-identifier: mac
+      set-name: "eth0"
+      

clonar/genera_yaml_k8s copy.sh

@@ -0,0 +1,40 @@
+#!/bin/bash
+#
+# Crea la base para la plantilla para kubernetes, borrando el machine-id y apagandola
+# Despues usar qm template para convertirla 
+#
+
+USER="curso"
+PASSWORD="1"
+PASSWORD_HASH=$(openssl passwd -6 "$PASSWORD")
+PUB_KEY=$(cat ~/.ssh/id_rsa.pub)
+VMHOST="k8scp"
+
+cat <<EOF > /mnt/pve/VMs_storage-E/snippets/user_data-clonar.yaml
+#cloud-config
+
+system_info:
+  default_user:
+    name: $USER
+    sudo: ALL=(ALL) NOPASSWD:ALL
+    shell: /bin/bash
+    lock_passwd: false
+    passwd: $PASSWORD_HASH
+    # passwd: \$6\$ogQI1CDWE.wdcMWI\$6kIrEjVBNC5.YxxFwBY9CxFGnIg1SDhndG4niMn5Sz11NNqay4icJS4AAddY6WbcM7LZJsLzwiYeUCLq2ddmL0
+    ssh_authorized_keys:
+      - $PUB_KEY
+ssh_pwauth: true
+hostname: $VMHOST
+manage_etc_hosts: true
+fqdn: $VMHOST
+runcmd:
+  - apt update && apt install git -y
+  - cd /root
+  - git clone https://git.lfgut.duckdns.org/luis/infra_cloudinit.git
+  - cd infra_cloudinit/clonar
+  - ./k8s.sh
+EOF
+
+echo "Archivo user_data.yaml creado con éxito."
+
+

clonar/genera_yaml_k8s.sh

@@ -0,0 +1,41 @@
+#!/bin/bash
+#
+# Crea la base para la plantilla para kubernetes, borrando el machine-id y apagandola
+# Despues usar qm template para convertirla 
+#
+
+USER="curso"
+PASSWORD="1"
+PASSWORD_HASH=$(openssl passwd -6 "$PASSWORD")
+PUB_KEY=$(cat ~/.ssh/id_rsa.pub)
+VMHOST="k8scp"
+
+cat <<EOF > /mnt/pve/VMs_storage-E/snippets/user_data-clonar.yaml
+#cloud-config
+
+system_info:
+  default_user:
+    name: $USER
+    sudo: ALL=(ALL) NOPASSWD:ALL
+    shell: /bin/bash
+    lock_passwd: false
+    passwd: $PASSWORD_HASH
+    # passwd: \$6\$ogQI1CDWE.wdcMWI\$6kIrEjVBNC5.YxxFwBY9CxFGnIg1SDhndG4niMn5Sz11NNqay4icJS4AAddY6WbcM7LZJsLzwiYeUCLq2ddmL0
+    ssh_authorized_keys:
+      - $PUB_KEY
+ssh_pwauth: true
+hostname: $VMHOST
+manage_etc_hosts: true
+fqdn: $VMHOST
+# package_update: true
+runcmd:
+  - apt update && apt install git -y
+  - cd /root
+  - git clone https://git.lfgut.duckdns.org/luis/infra_cloudinit.git
+  - cd infra_cloudinit/clonar
+  - ./k8s.sh
+EOF
+
+echo "Archivo user_data.yaml creado con éxito."
+
+

clonar/k8s.sh

@@ -0,0 +1,12 @@
+#!/bin/bash
+
+cp 50-cloud-init.yaml /etc/netplan/
+
+# Actualización del sistema
+apt update
+
+# Instalación del agente
+apt install qemu-guest-agent -y
+systemctl enable --now qemu-guest-agent
+apt upgrade
+reboot

docker/0.crea_VM.sh

@@ -0,0 +1,19 @@
+source config.sh
+
+
+# Genera la configuracion inicial de CLoudInit
+./genera_yaml_k8s.sh
+
+# apaga y borra la VM si existe antes
+qm stop $VMID
+qm destroy $VMID
+
+qm create $VMID --name $VMHOST --memory $VRAM --cores $VCORES --net0 virtio,bridge=$VMNET --cpu host --agent enabled=1 --tags docker
+qm set $VMID --ide2 $VMSTORAGE:cloudinit --boot c --bootdisk scsi0 --serial0 socket --vga serial0
+
+qm importdisk $VMID /mnt/pve/ISOs_storage/template/iso/ubuntu-24.04-minimal-cloudimg-amd64.img $VMSTORAGE --format qcow2
+qm set $VMID --scsihw virtio-scsi-pci --scsi0 $VMSTORAGE:$VMID/vm-$VMID-disk-0.qcow2 
+qm disk resize $VMID scsi0 40G
+qm set $VMID --ipconfig0 ip=dhcp --cicustom "user=$VMSTORAGE:snippets/user_data-docker.yaml"
+
+qm start $VMID

docker/1.instala_docker.sh

@@ -0,0 +1,29 @@
+#!/bin/bash
+
+# Variables
+USER="curso" # Usuario con acceso sudo
+
+# Actualizar sistema
+echo "Actualizando el sistema..."
+sudo apt-get update && sudo apt-get upgrade -y
+
+
+# Add Docker's official GPG key:
+sudo apt-get update
+sudo apt-get install ca-certificates curl
+sudo install -m 0755 -d /etc/apt/keyrings
+sudo curl -fsSL https://download.docker.com/linux/ubuntu/gpg -o /etc/apt/keyrings/docker.asc
+sudo chmod a+r /etc/apt/keyrings/docker.asc
+
+# Add the repository to Apt sources:
+echo \
+  "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/ubuntu \
+  $(. /etc/os-release && echo "${UBUNTU_CODENAME:-$VERSION_CODENAME}") stable" | \
+  sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
+sudo apt-get update
+
+
+sudo apt-get install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin -y
+
+# añade el usuario curso al grupo docker
+usermod -aG docker $USER

docker/50-cloud-init.yaml

@@ -0,0 +1,8 @@
+network:
+  version: 2
+  ethernets:
+    eth0:
+      dhcp4: true
+      dhcp-identifier: mac
+      set-name: "eth0"
+      

docker/config.sh

@@ -0,0 +1,32 @@
+# config.sh
+
+# Crea variables
+# ID de VM
+VMID="930000"
+
+# lugar de almacenamiento para el disco
+VMSTORAGE="VMs_storage-E"
+### VMSTORAGE="local"
+
+# recursos
+VRAM=4096
+VCORES=2
+
+
+# network
+### VMNET="k8s"
+VMNET="vmbr0"
+
+# hostname
+VMHOST="docker"
+
+# usuario y password
+USER="curso"
+PASSWORD="1"
+
+
+
+# calculos con lo que hay
+
+PASSWORD_HASH=$(openssl passwd -6 "$PASSWORD")
+PUB_KEY=$(cat ~/.ssh/id_rsa.pub)

docker/genera_yaml_k8s.sh

@@ -0,0 +1,37 @@
+#!/bin/bash
+#
+# Crea la base para la plantilla para kubernetes, borrando el machine-id y apagandola
+# Despues usar qm template para convertirla 
+#
+
+source config.sh
+
+cat <<EOF > /mnt/pve/VMs_storage-E/snippets/user_data-docker.yaml
+#cloud-config
+
+system_info:
+  default_user:
+    name: $USER
+    sudo: ALL=(ALL) NOPASSWD:ALL
+    shell: /bin/bash
+    lock_passwd: false
+    passwd: $PASSWORD_HASH
+    # passwd: \$6\$ogQI1CDWE.wdcMWI\$6kIrEjVBNC5.YxxFwBY9CxFGnIg1SDhndG4niMn5Sz11NNqay4icJS4AAddY6WbcM7LZJsLzwiYeUCLq2ddmL0
+    ssh_authorized_keys:
+      - $PUB_KEY
+ssh_pwauth: true
+hostname: $VMHOST
+manage_etc_hosts: true
+fqdn: $VMHOST
+# package_update: true
+runcmd:
+  - apt update && apt install git -y
+  - cd /root
+  - git clone https://git.lfgut.duckdns.org/luis/infra_cloudinit.git
+  - cd infra_cloudinit/docker
+  - ./k8s.sh
+EOF
+
+echo "Archivo user_data.yaml creado con éxito."
+
+

docker/k8s.sh

@@ -0,0 +1,16 @@
+#!/bin/bash
+
+cp 50-cloud-init.yaml /etc/netplan/
+
+# Actualización del sistema
+apt update
+
+# Instalación del agente
+apt install qemu-guest-agent -y
+systemctl enable --now qemu-guest-agent
+apt upgrade -y
+
+./1.instala_docker.sh
+
+
+reboot

k8s/1.instala_kubernetes.sh

@@ -61,6 +61,11 @@ 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
@@ -99,5 +104,5 @@ sudo apt-mark hold kubelet kubeadm kubectl
 #    sudo systemctl restart containerd
 #    sudo systemctl enable containerd
 
-sudo kubeadm config images pull
+#sudo kubeadm config images pull
 

k8s/2.levanta_cluster.sh

@@ -3,10 +3,10 @@
 # Variables
 USER="curso" # Usuario con acceso sudo
 
-
+sudo kubeadm config images pull
 
 echo "Inicializando el nodo maestro..."
-sudo kubeadm init --control-plane-endpoint=k8scp --upload-certs --pod-network-cidr=172.24.0.0/16
+sudo kubeadm init --control-plane-endpoint=k8s01 --upload-certs --pod-network-cidr=172.24.0.0/16
 
 
 # sudo kubeadm init --pod-network-cidr=174.24.0.0/16 --cri-socket=unix:///run/containerd/containerd.sock --upload-certs --control-plane-endpoint=k8scp

k8s/4.prueba_k8s.sh

@@ -7,6 +7,9 @@ kubectl create deployment nginx-app --image nginx --replicas 2 --namespace demo-
 kubectl get deployment -n demo-app
 kubectl get pods -n demo-app
 
+kubectl scale --replicas=20 deployment nginx-app -n demo-app
+
+kubectl delete  deployment nginx-app -n demo-app
 
 kubectl expose deployment nginx-app -n demo-app --type NodePort --port 80
 kubectl get svc -n demo-app
@@ -17,6 +20,8 @@ kubectl get svc -n demo-app
 curl http://localhost:30336
 
 
+kubectl create ns demo-app
+
 
 
 

k8s/add-nodo.md

@@ -0,0 +1,33 @@
+
+Your Kubernetes control-plane has initialized successfully!
+
+To start using your cluster, you need to run the following as a regular user:
+
+  mkdir -p $HOME/.kube
+  sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
+  sudo chown $(id -u):$(id -g) $HOME/.kube/config
+
+Alternatively, if you are the root user, you can run:
+
+  export KUBECONFIG=/etc/kubernetes/admin.conf
+
+You should now deploy a pod network to the cluster.
+Run "kubectl apply -f [podnetwork].yaml" with one of the options listed at:
+  https://kubernetes.io/docs/concepts/cluster-administration/addons/
+
+You can now join any number of control-plane nodes running the following command on each as root:
+
+  kubeadm join k8s01:6443 --token mlv46u.o92gie7d9wseptfx \
+        --discovery-token-ca-cert-hash sha256:2c20f2d546d59772bb0a82fae16c213c8c7a35b80365f39cd6e5be037f84a94a \
+        --control-plane --certificate-key 8985eb6d3979f371b7c2dbd98e14f071fe7fd1a86468112d501c29ffe7e6843e
+
+Please note that the certificate-key gives access to cluster sensitive data, keep it secret!
+As a safeguard, uploaded-certs will be deleted in two hours; If necessary, you can use
+"kubeadm init phase upload-certs --upload-certs" to reload certs afterward.
+
+Then you can join any number of worker nodes by running the following on each as root:
+
+kubeadm join k8s01:6443 --token mlv46u.o92gie7d9wseptfx \
+        --discovery-token-ca-cert-hash sha256:2c20f2d546d59772bb0a82fae16c213c8c7a35b80365f39cd6e5be037f84a94a 
+
+