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🛠️ Strengthening my DevOps foundation with Git, AWS, Ansible, and Terraform!

Welcome back to my DevOps learning journey! This week, I took a deep dive into some fundamental DevOps concepts, focusing on version control, cloud services, configuration management, and infrastructure as code. Here’s a breakdown of what I learned and my key takeaways.

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📌 Git Essentials – Important Commands & Branching Strategies

Version control is the backbone of any DevOps workflow, and Git plays a crucial role in managing code efficiently. This week, I focused on:

🔹 Essential Git Commands:

• git init – Initialize a new repository

• git clone – Clone an existing repository

• git add – Stage changes for commit

• git commit -m "message" – Save changes to local repository

• git push origin <branch> – Push changes to a remote repository

• git pull origin <branch> – Fetch and merge changes from the remote repository

• git merge <branch> – Merge another branch into the current branch

🔹 Branching Strategies:

• Feature Branching: Developers create separate branches for each feature and merge them into the main branch after completion.

• Git Flow: Uses develop and master branches along with feature, release, and hotfix branches.

• Trunk-Based Development: Encourages frequent commits to the main branch, reducing long-lived feature branches.

Mastering Git is crucial for maintaining a smooth CI/CD pipeline and effective collaboration!

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🌩️ AWS for DevOps – Key Services & Deploying an App

AWS is a game-changer for DevOps, offering a wide range of services for automation, scalability, and reliability. This week, I explored:

🔹 Key AWS Services for DevOps:

• EC2 – Virtual servers for deploying applications.

• S3 – Storage for static assets and backups.

• IAM – Identity and Access Management for secure authentication.

• EKS/ECS – Managed Kubernetes and container services.

• CloudFormation – Infrastructure as Code (IaC) to automate infrastructure deployment.

• CodePipeline – CI/CD pipeline for automating code deployments.

🔹 Deploying an App on AWS: I deployed a simple application using EC2 and S3, configuring security groups and IAM roles to ensure secure access. This hands-on experience helped me understand networking and deployment best practices on AWS.

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🔧 Configuration Management – Ansible Basics

Configuration management tools like Ansible simplify infrastructure automation. Some key concepts I learned:

🔹 Why Ansible?

• Agentless (uses SSH for communication)

• Declarative approach (idempotent configurations)

• YAML-based playbooks

🔹 Ansible Components:

• Inventory: List of hosts managed by Ansible

• Playbooks: YAML files defining automation tasks

• Modules: Predefined commands to perform tasks

• Roles: Reusable automation templates

🔹 Basic Ansible Commands:

ansible all -m ping -i inventory.ini
ansible-playbook site.yml

Ansible is a powerful tool for automating configuration management across servers!

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🏗️ Infrastructure as Code – Terraform Fundamentals

Terraform is a key tool for provisioning infrastructure using code. Here’s what I covered:

🔹 Terraform Basics:

• Declarative Configuration: Uses .tf files to define infrastructure

• Providers: AWS, Azure, GCP, Kubernetes, etc.

• State Management: Keeps track of resources provisioned

🔹 Terraform Workflow:

terraform init  # Initialize Terraform
terraform plan  # Preview changes
terraform apply  # Deploy infrastructure
terraform destroy  # Remove resources

Terraform makes infrastructure deployment repeatable, scalable, and version-controlled!

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🔥 Key Takeaways from Week 2

✅ Mastering Git is essential for effective collaboration and CI/CD. ✅ AWS provides powerful tools for automating and scaling DevOps processes. ✅ Ansible simplifies server configuration management without requiring an agent. ✅ Terraform enables Infrastructure as Code, making provisioning infrastructure seamless.

Week 2 was packed with insights, and I’m excited to dive deeper into automation and CI/CD in the coming weeks. Stay tuned for my next update! 🚀

Let me know your thoughts, and if you're also learning DevOps, feel free to share your experiences in the comments! 😊

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