DevOps Automation Scripts

Production-ready DevOps automation scripts for cloud infrastructure, Kubernetes, and CI/CD pipelines.

Author: Sudhakar Chundu | Updated: December 2025

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Scripts

Script	Description
ubuntu-dev-setup.sh	Ubuntu DevOps toolchain setup
raycluster.yaml	KubeRay cluster for ML workloads
azure-aks-elasticsearch.sh	Elasticsearch on Azure AKS
aws-eks-elasticsearch.sh	Elasticsearch on AWS EKS
azure-devops-infra-pipeline.sh	Azure DevOps CI/CD setup

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1. Ubuntu Dev Environment Setup

File: ubuntu-dev-setup.sh

Installs DevOps tools: Terraform, Go, Docker, kubectl, Helm, AWS CLI, Azure CLI.

./ubuntu-dev-setup.sh

Features:

• Multi-arch support (amd64/arm64)
• Ed25519 SSH keys
• Shell completions & aliases (k, tf, d, gs)

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2. RayCluster Kubernetes Manifest

File: raycluster.yaml

┌────────────────────────────────────┐
│           RayCluster               │
│  ┌──────┐  ┌──────┐  ┌──────┐      │
│  │ Head │──│Worker│──│Worker│      │
│  └──────┘  └──────┘  └──────┘      │
└────────────────────────────────────┘

kubectl apply -f raycluster.yaml
kubectl port-forward svc/raycluster-complete-head-svc 8265:8265

Specs: Ray 2.9.3 | KubeRay API v1 | Autoscaling | Prometheus metrics

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3. Azure AKS Elasticsearch

File: azure-aks-elasticsearch.sh

┌─────────────────────────────────┐
│  AKS ──► ES Cluster (3 nodes)   │
│          ↓                      │
│    Ingress + TLS + DNS          │
└─────────────────────────────────┘

export AZURE_SUBSCRIPTION_ID="your-sub-id"
./azure-aks-elasticsearch.sh

Deploys: AKS 1.32 | ES 8.17.0 | cert-manager v1.17.2 | ingress-nginx 4.14.1

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4. AWS EKS Elasticsearch

File: aws-eks-elasticsearch.sh

┌─────────────────────────────────┐
│  EKS ──► ES Cluster (3 nodes)   │
│          ↓                      │
│    NLB + Ingress + TLS          │
└─────────────────────────────────┘

export AWS_REGION="us-west-2"
./aws-eks-elasticsearch.sh deploy

# Cleanup
./aws-eks-elasticsearch.sh cleanup

Deploys: EKS 1.32 | ES 8.17.0 | AWS LB Controller v2.10.0 | gp3 storage

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5. Azure DevOps Pipeline

File: azure-devops-infra-pipeline.sh

ADO Project ──► Repos + Pipelines + Variables
     ↓
Azure ──► TF State Storage + Key Vault

export ARM_SUBSCRIPTION_ID="your-sub-id"
export ADO_ORGANIZATION="your-org"
export ADO_PROJECT="my-project"
export ADO_PAT="your-pat-token"

./azure-devops-infra-pipeline.sh deploy

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Version Matrix

Component	Version
Kubernetes	1.32
Elasticsearch	8.17.0
cert-manager	v1.17.2
ingress-nginx	4.14.1
Ray	2.9.3
Terraform	1.7.5+

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Prerequisites

# Azure CLI
curl -sL https://aka.ms/InstallAzureCLIDeb | sudo bash

# AWS CLI
curl "https://awscli.amazonaws.com/awscli-exe-linux-x86_64.zip" -o "awscliv2.zip"
unzip awscliv2.zip && sudo ./aws/install

# kubectl & Helm
curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl"
curl https://raw.githubusercontent.com/helm/helm/main/scripts/get-helm-3 | bash

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Quick Start

git clone https://github.com/schundu007/scripts.git
cd scripts
chmod +x *.sh

# Ubuntu setup
./ubuntu-dev-setup.sh

# Azure Elasticsearch
AZURE_SUBSCRIPTION_ID="xxx" ./azure-aks-elasticsearch.sh

# AWS Elasticsearch
AWS_REGION="us-west-2" ./aws-eks-elasticsearch.sh deploy

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License

MIT License - see LICENSE

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GitHub: @schundu007 | LinkedIn: Sudhakar Chundu | Gist: @schundu007 |