DevOps Infrastructure Automation with Docker, K8s, Jenkins & Grafana for Linux Servers

This automated n8n workflow delivers an instant DevOps toolkit by installing Docker, K3s, Jenkins, Grafana, and more on a Linux server within 10 seconds. It optimizes performance, enhances security, and provides ready-to-use templates for DevOps projects.

Main Components

• Configure Parameters - Defines server details, tool versions, and credentials
• System Preparation - Updates the system and installs base packages
• Install Docker - Deploys Docker Engine and Docker Compose
• Install Kubernetes - Sets up K3s cluster with kubectl, Helm, and k9s
• Install Jenkins - Configures Jenkins CI/CD server with Docker integration
• Install Monitoring - Deploys Prometheus and Grafana using Helm charts
• Create DevOps User - Establishes a dedicated user with appropriate permissions
• Security Configuration - Implements firewall, VS Code, and Terraform
• Final Configuration - Sets up sample projects and configuration files
• Setup Complete - Provides a summary and access details

Essential Prerequisites

• Linux server with SSH access
• Root-level administrative privileges

Customization Guide

• Adjust tool versions or credentials in the Configure Parameters node
• Modify the number of nodes or security settings as needed

Features

• 🔧 Core DevOps Tools Installed:
  • Docker - Container platform with Docker Compose
  • Kubernetes - K3s (lightweight) with kubectl and Helm
  • Jenkins - CI/CD automation server
  • Prometheus - Monitoring and alerting
  • Grafana - Visualization and dashboards
• ⚡ Optimizations Made:
  • Streamlined Commands - Combined multiple operations into single bash scripts
  • Reduced Nodes - 10 nodes vs 12 in original (more efficient)
  • Better Error Handling - Each step includes verification
  • Cloud-Ready - Includes AWS CLI, Azure CLI, and Google Cloud SDK
  • Security First - Proper firewall configuration and user permissions

Parameters to Configure

• server_host: Your Linux server IP address
• server_user: SSH username (typically 'root')
• server_password: SSH password
• docker_version: Docker version to install
• k3s_version: K3s version to install
• username: DevOps username
• user_password: Password for the DevOps user

How to Use

• Copy the JSON code from the artifact
• Open your n8n workspace
• Select "Import from JSON" or "+" → "From JSON"
• Paste the JSON code
• Configure parameters in the "Configure Parameters" node with your server details
• Run the workflow

Workflow Actions

• Install: Deploys Docker, K3s, Jenkins, Prometheus, and Grafana with optimizations
• Create User: Sets up a DevOps user with necessary permissions
• Configure: Applies security settings and provides templates