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+# 🌩️ Ghaymah SRE Exam — Amir Kasseb
+
+> **Site Reliability Engineering** technical exam submission on the [Ghaymah Cloud](https://ghaymah.systems) platform.
+
+**Candidate:** Amir Mohamed Kasseb
+
+**Profile:** [qabilah.com/profile/amir-m-kasseb](https://qabilah.com/profile/amir-m-kasseb/professional-profile)
+
+---
+
+## 🚀 Live Deployments
+
+| Service | URL | Description |
+|---|---|---|
+| 🖥️ **API App** | [gheyma-app-2b88268529f9.hosted.ghaymah.systems](https://gheyma-app-2b88268529f9.hosted.ghaymah.systems) | Go REST API — `/health`, `/metrics` endpoints |
+| 📊 **SRE Dashboard** | [gheyma-dashboard-f50eaa0b0517.hosted.ghaymah.systems](https://gheyma-dashboard-f50eaa0b0517.hosted.ghaymah.systems) | Live monitoring dashboard for the API |
+| 🔭 **Mithal Monitor** | [ghaymah-mithal-monitor-9e02b47e8af8.hosted.ghaymah.systems](https://ghaymah-mithal-monitor-9e02b47e8af8.hosted.ghaymah.systems) | Uptime & latency monitor for mithal.space |
+
+---
+
+## 📁 Repository Structure
+
+```
+ghaymah-exam-amirkasseb-sre/
+│
+├── q1-deploy-monitor/        # Q1: Container deployment & SRE monitoring
+│   ├── app/                  # Go REST API (main.go, Dockerfile)
+│   ├── dashboard/            # SRE monitoring dashboard (HTML/CSS/JS + Nginx)
+│   ├── health-check.sh       # Bash health monitoring daemon (30s interval)
+│   ├── monitor.log           # Health check output log
+│   └── README.md
+│
+├── q2-postmortem/            # Q2: Incident postmortem report
+│   └── postmortem-report.md  # OOMKilled outage analysis & recommendations
+│
+├── q3-cicd/                  # Q3: CI/CD Pipeline
+│   ├── workflow.yml           # GitHub Actions workflow definition
+│   └── readme.md             # Pipeline design explanation (Arabic)
+│
+├── q4-scalability/           # Q4: Scalability & load balancing
+│   ├── calculations.md       # Container count calculations & cold-start strategy
+│   └── architecture.png      # Scalability architecture diagram
+│
+├── q5-mithal-monitor/        # Q5: mithal.space full-stack monitor
+│   ├── monitor.py            # Python monitoring script (uptime, latency, SSL, DNS)
+│   ├── index.html            # Interactive monitoring dashboard
+│   ├── data.jsonl / data.csv # Collected monitoring data
+│   ├── Dockerfile            # Container definition
+│   └── README.md
+│
+├── common-mortakaz/          # Mortakaz integration proposals
+│   ├── integration-1.md      # Qumra × Ghaymah integration proposal
+│   └── integration-2.md      # Second integration proposal
+│
+└── common-qabilah/           # Candidate profile
+    └── qabilah-profile.txt   # Link to professional profile
+```
+
+---
+
+## 📋 Questions Summary
+
+### Q1 — Container Deployment & SRE Monitoring
+
+Deployed a **Go REST API** to Ghaymah Cloud with:
+
+- **Multi-stage Dockerfile** (Alpine Linux, non-root user, port 8080)
+- **3 endpoints**: `GET /` · `GET /health` · `GET /metrics`
+- **Bash monitoring daemon** (`health-check.sh`) — probes every 30 seconds, logs HTTP status & response time
+- **Live SRE dashboard** — real-time latency chart, uptime timeline, request count, auto-refresh every 15s
+
+```bash
+# Verify live endpoints
+curl https://gheyma-app-2b88268529f9.hosted.ghaymah.systems/health
+curl https://gheyma-app-2b88268529f9.hosted.ghaymah.systems/metrics
+```
+
+📂 [`q1-deploy-monitor/`](./q1-deploy-monitor/) · 📊 [Live Dashboard](https://gheyma-dashboard-f50eaa0b0517.hosted.ghaymah.systems)
+
+---
+
+### Q2 — Incident Postmortem
+
+Authored a full postmortem for a **45-minute OOMKilled outage**:
+
+- **Root cause**: Container memory limit set below actual working-set (in-memory cache was never accounted for)
+- **Timeline**: Pod crash loop from 10:53 → resolved at 11:28 after limit increase
+- **Recommendations**: Memory-based HPA, 75–80% threshold alerts, restart-count circuit breaker, load testing after stateful changes
+- **Ghaymah-specific**: Detection flow using Ghaymah Usage Dashboard & application logs
+
+📂 [`q2-postmortem/postmortem-report.md`](./q2-postmortem/postmortem-report.md)
+
+---
+
+### Q3 — CI/CD Pipeline
+
+Designed a **GitHub Actions CI/CD pipeline** deploying to Ghaymah Cloud:
+
+```
+develop → Build & Test → Deploy to Staging
+main    → Build & Test → Manual Approval → Deploy to Production
+```
+
+- **Build**: Docker image built & health-tested on every push
+- **Staging**: Auto-deployed from `develop` branch
+- **Production**: Requires manual approval via GitHub Environments before deploy
+- **Ghaymah CLI**: Used to authenticate (`gy auth login`) and deploy (`gy resource app launch`)
+- **Secrets**: `GHAYMAH_EMAIL` and `GHAYMAH_PW` stored in GitHub Secrets
+
+📂 [`q3-cicd/workflow.yml`](./q3-cicd/workflow.yml)
+
+---
+
+### Q4 — Scalability & Load Balancing
+
+Calculated infrastructure requirements for **15,000 req/s** with a 30% safety margin:
+
+```
+Effective load = 15,000 × 1.3 = 19,500 req/s
+Containers needed = 19,500 ÷ 500 = 39 containers
+→ ~77% capacity utilization per container
+```
+
+**Cold-start strategies covered:**
+| Strategy | Description |
+|---|---|
+| Predictive Scaling | Spin up containers before threshold is reached |
+| Warm Pool | 2–3 standby containers always ready |
+| Golden Images | Pre-baked optimized images to cut init time |
+| Gradual Traffic Ramp-up | Route load gradually to new containers |
+| Readiness Probe | Don't add to load balancer until healthy |
+
+Also covered **Ghaymah Block Storage** for stateful workloads (persistence, snapshots, low-latency I/O).
+
+📂 [`q4-scalability/calculations.md`](./q4-scalability/calculations.md)
+
+---
+
+### Q5 — Mithal.space Monitor & Dashboard
+
+Built a **full-stack monitoring application** for `mithal.space`:
+
+- **Python monitoring script** (`monitor.py`) collecting: Uptime, Latency, SSL certificate expiry, DNS resolution time, Search latency
+- **Interactive dashboard** (`index.html`) with real-time charts (Chart.js)
+- **Data persistence** in `data.jsonl` and `data.csv`
+- **Dockerized**: Single-container deployment with volume mounts for data persistence
+
+```bash
+# Run with Docker Compose
+docker compose up -d
+# → Available at http://localhost:8080
+
+# Or directly
+pip install -r requirements.txt
+python monitor.py
+```
+
+📂 [`q5-mithal-monitor/`](./q5-mithal-monitor/) · 🔭 [Live Monitor](https://ghaymah-mithal-monitor-9e02b47e8af8.hosted.ghaymah.systems)
+
+---
+
+### Common — Mortakaz Integration Proposals
+
+Two integration proposals connecting Arabic SaaS products with Ghaymah Cloud:
+
+- **Integration 1**: [**Qumra × Ghaymah**](./common-mortakaz/integration-1.md) — Store/website builder using Ghaymah as cloud infrastructure layer, monitored via mithal.space
+- **Integration 2**: [`integration-2.md`](./common-mortakaz/integration-2.md) — Second integration proposal
+
+---
+
+## 🛠️ Tech Stack
+
+| Layer | Technology |
+|---|---|
+| **API** | Go (Golang), Alpine Linux |
+| **Containerization** | Docker (multi-stage builds) |
+| **CI/CD** | GitHub Actions + Ghaymah CLI |
+| **Monitoring Script** | Bash, Python (requests, ssl, dns) |
+| **Dashboard** | HTML5, Vanilla CSS, Vanilla JavaScript, Chart.js |
+| **Cloud Platform** | [Ghaymah Cloud](https://ghaymah.systems) |
+
+---
+
+## ✅ Verification
+
+```bash
+# API health check
+curl -i https://gheyma-app-2b88268529f9.hosted.ghaymah.systems/health
+# Expected: HTTP/1.1 200 OK  {"status":"healthy"}
+
+# API metrics
+curl -i https://gheyma-app-2b88268529f9.hosted.ghaymah.systems/metrics
+# Expected: HTTP/1.1 200 OK  {"requests":<count>}
+```
+
+---
+
+> Made with ☁️ on [Ghaymah Cloud](https://ghaymah.systems)