Test cicd pipeline

INTERVIEW_PREP.md

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+# Technical Interview Preparation - Shippio
+**Date:** Friday, July 18th, 9:00–10:00 AM  
+**Interviewers:** Gabriel & Arek  
+**Meet URL:** meet.google.com/oad-qpwr-hve
+
+## 🎯 Interview Overview
+This is a **technical interview** focusing on:
+- Getting to know you and your past work experiences
+- **Assessing your technical ability**
+- Likely deep dive into your DevOps project
+
+## 📋 Pre-Interview Checklist
+
+### Technical Setup (Day Before)
+- [ ] **Test your demo environment**
+  - Local Flask app running
+  - Docker container working
+  - AWS infrastructure accessible
+  - GitHub Actions pipeline functional
+
+- [ ] **Prepare backup demos**
+  - Screenshots of AWS Console
+  - Video recordings of deployments
+  - Code walkthroughs ready
+
+- [ ] **Review key files**
+  - `README.md` - Project overview
+  - `ISSUES_FOUND.md` - Problem-solving examples
+  - `STUDY_PLAN.md` - Your learning approach
+  - Terraform files - Infrastructure as Code
+  - GitHub Actions workflows - CI/CD pipeline
+
+### Environment Setup (30 minutes before)
+- [ ] **Test Google Meet**
+  - Camera and microphone working
+  - Screen sharing capability
+  - Stable internet connection
+
+- [ ] **Prepare your workspace**
+  - Code editor open with project files
+  - Terminal ready for live demos
+  - Browser tabs organized (AWS Console, GitHub)
+
+## 🎯 Key Talking Points
+
+### 1. **Project Introduction (2-3 minutes)**
+*"I built a complete DevOps pipeline for a beer catalog application that demonstrates infrastructure as code, containerization, and automated CI/CD. The project shows my ability to work with AWS, Terraform, Docker, and GitHub Actions from scratch."*
+
+**Highlight:**
+- End-to-end automation
+- No prebuilt modules used
+- Production-ready architecture
+- Real problem-solving experience
+
+### 2. **Technical Architecture (3-4 minutes)**
+*"The architecture follows cloud-native best practices: Flask app containerized with Docker, deployed on ECS Fargate, connected to PostgreSQL RDS in a private subnet, all managed with Terraform and automated via GitHub Actions."*
+
+**Key Components:**
+- **Application Layer**: Flask with proper error handling
+- **Containerization**: Secure Docker setup with non-root user
+- **Infrastructure**: VPC with public/private subnets, security groups
+- **Database**: RDS PostgreSQL with proper security
+- **Automation**: GitHub Actions CI/CD pipeline
+
+### 3. **Problem-Solving Stories (3-4 minutes)**
+*"The project included intentional issues to test problem-solving skills. I documented 7+ issues and their solutions, with the most challenging being the ECS-RDS connectivity problem."*
+
+**Key Issues Solved:**
+- Database connection configuration
+- Environment variable management
+- Security group configurations
+- Terraform state conflicts
+- Container security improvements
+
+### 4. **Technical Deep Dive (5-6 minutes)**
+Be ready to explain:
+- **Infrastructure as Code**: Terraform modules and state management
+- **Container Security**: Non-root containers, minimal base images
+- **CI/CD Pipeline**: Automated testing, building, and deployment
+- **Monitoring**: CloudWatch logs and metrics
+- **Security**: IAM roles, security groups, VPC design
+
+## 🚀 Live Demo Preparation
+
+### Primary Demo Flow
+1. **Show the application running locally**
+   ```bash
+   cd app/beer_catalog
+   poetry run python -m flask --app beer_catalog/app run --debug
+   curl http://localhost:5000/health
+   curl http://localhost:5000/beers
+   ```
+
+2. **Demonstrate Docker containerization**
+   ```bash
+   docker build -t beer-catalog-app .
+   docker run -p 5000:5000 beer-catalog-app
+   ```
+
+3. **Show infrastructure in AWS Console**
+   - ECS cluster and service
+   - RDS database
+   - VPC and security groups
+   - CloudWatch logs
+
+4. **Walk through CI/CD pipeline**
+   - GitHub Actions workflow
+   - Automated build and deploy
+   - ECR image repository
+
+### Backup Demo Options
+- **Code walkthrough**: Explain key files and decisions
+- **Screenshots**: Show AWS resources and configurations
+- **Documentation**: Walk through README and troubleshooting guide
+
+## 💬 Expected Questions & Answers
+
+### Technical Questions
+
+**Q: "Walk me through your architecture"**
+**A:** *"I built a containerized Flask app deployed on ECS Fargate. The app connects to PostgreSQL RDS in a private subnet, with all infrastructure managed by Terraform. Deployments are automated via GitHub Actions, and everything runs in a VPC with proper security groups."*
+
+**Q: "What was the most challenging issue you solved?"**
+**A:** *"The ECS-RDS connectivity issue was challenging. The app was trying to connect to localhost instead of the RDS endpoint. I debugged this through CloudWatch logs and fixed it by properly configuring the DATABASE_URL environment variable in the ECS task definition."*
+
+**Q: "How would you scale this architecture?"**
+**A:** *"I'd add an Application Load Balancer, implement auto-scaling based on CPU/memory, use read replicas for the database, and consider moving to Aurora Serverless. I'd also implement blue-green deployments for zero-downtime updates."*
+
+**Q: "What security measures did you implement?"**
+**A:** *"I use IAM roles with least privilege, security groups to restrict traffic, RDS in private subnets, and non-root containers. I avoid hardcoded secrets and use environment variables for configuration."*
+
+### Behavioral Questions
+
+**Q: "Tell me about a time you solved a complex technical problem"**
+**A:** *"In this project, I faced multiple infrastructure issues. The most complex was debugging the ECS-RDS connectivity problem. I systematically checked CloudWatch logs, verified security group configurations, and eventually found the issue was with environment variable configuration. This taught me the importance of systematic debugging and proper documentation."*
+
+**Q: "How do you stay current with DevOps practices?"**
+**A:** *"I follow a structured learning approach, as outlined in my study plan. I focus on hands-on projects, official documentation, and community involvement. I'm actively working toward AWS and Terraform certifications."*
+
+**Q: "What would you improve in your project?"**
+**A:** *"I'd add comprehensive monitoring with CloudWatch dashboards, implement secrets management with AWS Secrets Manager, add automated testing, and implement blue-green deployments. I'd also add infrastructure cost optimization and performance monitoring."*
+
+## 🎯 Interview Strategy
+
+### Opening (2 minutes)
+- Introduce yourself and your background
+- Mention your passion for DevOps and automation
+- Reference your study plan and systematic approach
+
+### Technical Discussion (8 minutes)
+- Walk through your project architecture
+- Demonstrate live components
+- Share problem-solving stories
+- Show your learning process
+
+### Q&A (5 minutes)
+- Answer technical questions confidently
+- Ask thoughtful questions about their tech stack
+- Show enthusiasm for the role and company
+
+### Closing (2 minutes)
+- Summarize your key strengths
+- Express interest in the role
+- Thank them for the opportunity
+
+## 🚨 Common Pitfalls to Avoid
+
+### Technical
+- ❌ Don't memorize answers - understand the concepts
+- ❌ Don't rush through demos - explain your decisions
+- ❌ Don't ignore failures - show how you learned from them
+
+### Communication
+- ❌ Don't use jargon without explanation
+- ❌ Don't be defensive about challenges
+- ❌ Don't forget to ask questions about their environment
+
+### Preparation
+- ❌ Don't wait until the last minute to test demos
+- ❌ Don't rely on internet for live demos
+- ❌ Don't forget to prepare backup options
+
+## 🎯 Success Indicators
+
+### Technical Competency
+- ✅ Can explain every component of your architecture
+- ✅ Understands the flow from code to production
+- ✅ Can troubleshoot common issues
+- ✅ Shows learning from challenges
+
+### Communication Skills
+- ✅ Presents technical concepts clearly
+- ✅ Demonstrates confidence in your solution
+- ✅ Answers questions thoughtfully
+- ✅ Shows enthusiasm for the work
+
+### Problem-Solving
+- ✅ Can discuss issues found and solutions
+- ✅ Understands debugging process
+- ✅ Can explain trade-offs and decisions
+- ✅ Shows systematic approach to problems
+
+## 🚀 Final Reminders
+
+### Day Before Interview
+- [ ] Test all demos and backups
+- [ ] Review key technical concepts
+- [ ] Prepare your workspace
+- [ ] Get good sleep
+
+### 30 Minutes Before
+- [ ] Test Google Meet setup
+- [ ] Have all tabs and tools ready
+- [ ] Take deep breaths and stay calm
+- [ ] Remember: You've built something impressive!
+
+### During Interview
+- [ ] Show confidence in your abilities
+- [ ] Be honest about challenges faced
+- [ ] Demonstrate problem-solving skills
+- [ ] Show enthusiasm for DevOps
+- [ ] Ask thoughtful questions
+
+## 🎯 Remember: You've Got This!
+
+Your project demonstrates:
+- **Real-world DevOps skills**
+- **Problem-solving ability**
+- **Infrastructure knowledge**
+- **Automation expertise**
+- **Security awareness**
+- **Documentation skills**
+
+You've built a complete, production-ready DevOps pipeline. Be confident in your abilities and show your passion for the work!
+
+**Good luck! 🎯**