Tool Decision Guides

This section provides practical decision trees and migration guides to help DevOps engineers select and transition between tools.

Decision Trees

Infrastructure as Code: Terraform vs. Pulumi

graph TD
    A[Do you want to use general-purpose programming languages?] -->|Yes| B[Pulumi]
    A -->|No| C[Terraform]
    B --> D{Multi-cloud support needed?}
    C --> D
    D -->|Yes| E[Both are suitable]
    D -->|No| F[Choose based on team skills]

Quick Reference Table

Criteria

Terraform

Pulumi

Language

HCL

Python, TS, Go

Ecosystem

Mature

Growing

Learning Curve

Medium

Medium-High

Multi-cloud

Yes

Policy as Code

Sentinel

Open Policy Agent

Community

Large

Growing

Migration Guides

Jenkins to GitHub Actions

Step-by-Step Migration:

Inventory Jenkins Jobs: List all jobs, triggers, and plugins in use.
Map Plugins to Actions: Find equivalent GitHub Actions or Marketplace actions.

Convert Pipelines:

Jenkinsfile → .github/workflows/*.yml

Example:

name: CI
on: [push]
jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - name: Run tests
        run: ./gradlew test

Secrets & Credentials: Move credentials to GitHub Secrets.
Test & Validate: Run workflows, compare outputs, and iterate.
Decommission Jenkins: After successful migration and validation.

Common Pitfalls:

Missing plugin equivalents
Environment differences (self-hosted vs. GitHub runners)
Secret management changes

Decision Trees

Infrastructure as Code: Terraform vs. Pulumi

Migration Guides

Jenkins to GitHub Actions

See Also