11/18/2024

Key Components of DevOps

•Continuous Integration (CI):

• Definition: Frequent code integration and automated
Agile Development Processes with DevOps testing to detect errors early.
• Tools: Jenkins, GitLab CI.

•Continuous Deployment (CD):

• Definition: Automated, continuous deployment of
software updates to production.
•Presented by: Priyanka Ramesh Jain • Benefit: Faster, reliable delivery with reduced human
error.
•Course: CS6340 - Advanced Software
engineering, Fall 2024 •Infrastructure as Code (IaC):
• Definition: Managing infrastructure through code (e.g.,
•Instructor: Dr. Redfield Terraform, Ansible).
• Benefit: Creates consistent environments across all
•Date: November 18, 2024 development stages (dev, test, production).
• Purpose: Ensures reliability and scalability, especially in
large-scale systems.

Introduction to Agile and DevOps Agile and DevOps - Complementary Approaches

•Agile Development:
• Definition: Agile is an iterative approach to software development that •Agile Focus:
emphasizes flexibility, customer collaboration, and frequent delivery. • Development-focused, emphasizes customer
• Origins: Emerged as a response to rigid “Waterfall” methods; officially defined by feedback, and fast iterations.
the Agile Manifesto in 2001. • Enables rapid updates and course corrections based
• Core Goal: Quickly adapt to change and meet customer needs. on feedback.

•DevOps Focus:
•DevOps:
• Emphasizes deployment and operational consistency.
• Definition: DevOps integrates development (Dev) and operations (Ops), focusing • Ensures fast, automated deployment and robust
on automating processes and enhancing collaboration. monitoring.
• Core Goal: Streamline code deployment, increase release frequency, and
maintain reliability through CI/CD (Continuous Integration and Continuous •Synergy of Agile and DevOps:
Deployment). • Agile’s adaptability + DevOps’ stability = Continuous,
high-quality software delivery.
•Why Combine Agile and DevOps? • Result: Organizations can release new features
frequently without sacrificing reliability.
• Agile ensures fast, flexible development.
• DevOps ensures efficient deployment and stability.
• Combined Approach: Enables teams to meet today’s need for both rapid and
reliable software delivery.
Figure 6: Agile-DevOps integration stages, adapted from "Agile – DevOps Implementation" by M. August
2023, AgileFirs

Core Principles of Agile Agile-DevOps in Practice

•Agile Values:
•Pipeline Workflow:
1. People & Collaboration: Emphasis on team communication, cross-
functional teamwork. I. Code Integration → Automated Testing → Deployment to Production
2. Working Software: Focus on delivering functional code at each II. CI/CD pipeline automates and streamlines this flow.
iteration.
3. Customer Collaboration: Regular feedback loops with clients. •Key Tools:
4. Responding to Change: Agile teams are adaptive, reprioritizing
based on new requirements. I. Jenkins: Automates CI/CD stages.
II. Docker: Containerizes applications, ensuring consistency across environments.
•Agile Methodologies: III. Kubernetes: Manages and scales containers.
1. Scrum: Structure in 2-4 week sprints with roles such as:
I. Scrum Master: Facilitates progress, removes obstacles. •Agile Project Management Tools:
II. Product Owner: Represents customer needs.
III. Development Team: Executes the sprint goals. I. Jira: Helps Agile teams with sprint planning and backlog management.
2. Kanban: Visual task tracking on boards (e.g., “To Do,” “In Progress,” “Done”). II. Trello: Offers a visual board for task management.
3. Lean: Maximizes value by minimizing waste. III. Asana: Manages tasks, timelines, and collaborations effectively.

•Outcome: Agile teams deliver increments of usable software, making improvements based on
continuous feedback.

1
 11/18/2024

Real-World Application - Amazon Case Study • Infrastructure as Code (IaC)

• Agile Practices (Scrum) I. Uses tools like Terraform and Ansible to define and manage infrastructure as code.
II. IaC ensures:
I. Utilizes Scrum methodology for iterative development and frequent delivery of a. Consistency across development, testing, and production environments.
features. b. Compliance with regulatory standards.
II. Sprints enable frequent updates, often delivered daily, based on customer feedback. c. Reduced risk of configuration errors leading to security breaches or failures.
III. Agile practices ensure quick adaptation to market demands and evolving customer
needs.
• Impact of Agile-DevOps at Cerner
• DevOps Pipeline I. Balance of Innovation and Compliance:
a. Delivers cutting-edge healthcare solutions while meeting stringent regulatory
I. Built around Continuous Integration (CI) and Continuous Deployment (CD): demands.
II. CI allows code contributions from global teams to merge seamlessly.
b. Provides healthcare professionals with secure, reliable software.
III. CD automates deployments directly to production environments, ensuring rapid
updates.
II. Enhanced Patient Care:
IV. Uses AWS tools: a. Solutions improve healthcare workflows and patient outcomes.
a. AWS CodePipeline: Automates the build and deployment process. b. Agile-DevOps ensures rapid delivery of new features without compromising
b. AWS CodeBuild: Compiles and tests code for quality assurance. quality.
c. AWS CodeDeploy: Automates application deployments without downtime.
• Key Benefits
• Automated Testing
I. Faster adaptation to industry changes and regulatory requirements.
I. Rigorous testing at every stage:
a. Unit Testing: Verifies individual code components.
II. Reduced likelihood of system failures or breaches through automated and
b. Integration Testing: Ensures compatibility between different modules. consistent practices.
c. Load Testing: Tests performance under varying levels of user demand. III. Streamlined healthcare processes, enhancing the efficiency of healthcare
II. Automation minimizes human error and maintains high-quality performance. professionals.

(Continue..) Overcoming Integration Challenges

• Real-Time Monitoring
•Cultural Shift:
I. Tracks customer interactions and application performance in real-time.
II. Enables swift detection and resolution of issues by the operations team. I. Requires development and operations teams to work closely, sharing responsibilities.
III. Enhances user experience and ensures platform reliability. II. Solution: Team-building, fostering a culture of continuous improvement.

• Scalability for Peak Events •Legacy Systems:

I. During events like Prime Day and Black Friday, DevOps ensures seamless I. Challenge: Old systems may not support automated workflows.
performance:
II. Solution: Gradual transition to microservices or cloud-based solutions.
II. AWS dynamically scales resources to handle high traffic and transaction volumes.
III. Prevents disruptions and maintains excellent customer experience during
demand spikes. •Balancing Automation and Human Oversight:

• Business Impact I. Automation is crucial, but human reviews are needed for quality and security checks.
II. Approach: Use checkpoints for code audits, security assessments, and user experience testing.
I. Agile-DevOps integration empowers Amazon to:
a. Deliver continuous updates and new features efficiently.
b. Maintain high-quality standards with minimal downtime.
c. Respond proactively to customer needs and evolving industry trends.

Case Study: DevOps in Agile Healthcare Software Development (Cerner Corporation) Benefits of Agile-DevOps Integration
• Unique Challenges in Healthcare Software Development
I. The healthcare industry requires strict adherence to data privacy, security, and regulatory compliance (e.g., HIPAA).
II. Software solutions must be reliable, secure, and adaptable to new regulatory demands.
•Faster, Frequent Delivery:
 Agile-DevOps Framework at Cerner • Short release cycles, enabling frequent updates
and responsiveness.
•Agile Sprints:
• Rapid iteration and improvements based on user
I. Enables incremental software development.
II. Facilitates rapid responses to new regulatory requirements and customer feedback. feedback.
III. Avoids disruptions to the entire system by focusing on manageable increments.
•Improved Quality Assurance:
•DevOps Practices: • Automated testing ensures stable, high-quality
I. Utilizes Continuous Integration (CI) and Continuous Deployment (CD) for automated testing and secure deployment. software.
II. Ensures updates are delivered safely without manual errors or delays.
• Continuous monitoring to detect issues early in
•DevSecOps Integration: production.
I. Incorporates automated security checks within the CI/CD pipeline.
II. Ensures all updates are compliant with industry standards before reaching production. •Increased Customer Satisfaction:
• Agile-DevOps enables teams to release
improvements based on real-time feedback.
• Software remains up-to-date, reliable, and
responsive to user needs.

2
 11/18/2024

Conclusion
•Key Takeaways:
• Agile-DevOps Synergy: Combines
Agile’s flexibility with DevOps’
stability.
• Comprehensive Solution: Covers
the entire development lifecycle,
from planning to deployment and
operations.

•Final Thought:
• Agile-DevOps is critical for
companies that want to stay
competitive, responsive, and
innovative.
• By adopting this framework, teams
achieve faster releases, higher
quality, and improved user
satisfaction, making it a
cornerstone of modern software
development.

Thank You!