[Kubernetes Deployment] Ansible automation tool deploys K8s version 1.27 offline

1. Prerequisites

• Single Master, multi-Node deployment architecture
• Requires host network communication, no network restrictions
• Requires root user privileges to deploy

2. Use Ansible to deploy K8S cluster steps

Step 1: Obtain the offline installation package
from Baidu Netdisk

Step 2: Install the ansible command

tar zxf k8s1.27.tar.gz && cd k8s1.27/Packages
tar zxf ansible.tar.gz && cd ansible
yum localinstall *

Step 3: Configure the installation host information (required)

vim k8s1.27/hosts

Parameter explanation:

• ansible_ssh_user: execution user
• ansible_ssh_pass: execute user password
• ansible_sudo_pass: execute user password (sudo permission)
• ansible_ssh_port: connect SSH port

Step 4: Specify the location of the Packages directory (required)

vim k8s1.27/config.yml

Step 5: Execute the script and wait patiently for the process. Offline deployment does not involve the network, which is relatively fast, about (10 minutes)

cd k8s1.27
ansible-playbook -i hosts k8sv1.27_kubeadm_install.yml

After the deployment is completed, the following figure is displayed:

Step 6: Verify the cluster, the status is to Readyindicate completion, if it is, NotReadyplease wait patiently.

kubectl get nodes

3. Expand content

1. Add multiple Node nodes

Step 1: k8s1.27/hostsAdd new node information

vim k8s1.27/hosts

Step 2: k8s1.27/roles/k8s-envInit/templates/hosts.j2Add new index location

vim k8s1.27/roles/k8s-envInit/templates/hosts.j2