Master Docker & Kubernetes Systems.
From Fundamentals to Cluster Ops.

🗺️ 50-Session-Docker-And-Kubernetes-Engineering-by-Parottasalna/
├── 🟢 PHASE 1: Docker & Container Fundamentals (Sessions 1–5)
│   ├── Week 01 (Tue) ➔ Session 01: Why Docker? (Bare Metal vs VMs vs Docker Containers, Portability)
│   ├── Week 01 (Thu) ➔ Session 02: Core Linux Prerequisites (Processes, PID, Mounts, Permissions, Signals & /proc)
│   ├── Week 02 (Tue) ➔ Session 03: Container Isolation Deep Dive (PID, NET, MNT, UTS, USER Namespaces)
│   ├── Week 02 (Thu) ➔ Session 04: Control Groups (cgroups v1/v2, CPU/Memory Limits & OOM Killer)
│   └── Week 03 (Tue) ➔ Session 05: Container Runtime Internals (OCI Specs, runc, containerd, Docker Engine vs CRI)
│
├── 🐳 PHASE 2: Docker Mastery & Workload Packaging (Sessions 6–15)
│   ├── Week 03 (Thu) ➔ Session 06: Docker Architecture & CLI (Daemon, Client, Docker Hub & Lifecycle Commands)
│   ├── Week 04 (Tue) ➔ Session 07: Docker Image Mechanics (Storage Drivers, Layering, Image IDs, Digests & Immutability)
│   ├── Week 04 (Thu) ➔ Session 08: Dockerfile Fundamentals (FROM, RUN, COPY, ADD, WORKDIR, ENV, CMD vs ENTRYPOINT)
│   ├── Week 05 (Tue) ➔ Session 09: Dockerfile Deep Dive (Exec vs Shell form, Build Context, .dockerignore & Layer Caching)
│   ├── Week 05 (Thu) ➔ Session 10: Image Optimization (Alpine vs Distroless vs Slim, Dive Inspection, Trivy Scanning)
│   ├── Week 06 (Tue) ➔ Session 11: Multi-Stage Builds (Compiling dependencies vs Lightweight Runtime Images)
│   ├── Week 06 (Thu) ➔ Session 12: Container Lifecycle & Signal Handling (PID 1, Graceful Shutdowns with FastAPI/Uvicorn)
│   ├── Week 07 (Tue) ➔ Session 13: Docker Networking Fundamentals (Bridge, host, none, veth pairs & NAT Port Mapping)
│   ├── Week 07 (Thu) ➔ Session 14: Docker Networking Deep Dive (Overlay, macvlan, Custom Networks & Inter-container DNS)
│   └── Week 08 (Tue) ➔ Session 15: Docker Volumes & Persistence (Writable Layer vs Volumes vs Bind Mounts vs tmpfs)
│
├── 🔵 PHASE 3: Docker Compose, Security & Observability (Sessions 16–20)
│   ├── Week 08 (Thu) ➔ Session 16: Docker Compose Orchestration (FastAPI Workload + PostgreSQL + Redis + Celery Stack)
│   ├── Week 09 (Tue) ➔ Session 17: Advanced Compose (Healthchecks, Dependencies, Secrets, Profiles & Resource Limits)
│   ├── Week 09 (Thu) ➔ Session 18: Container Security (Rootless Containers, Capabilities, Seccomp, AppArmor, Read-Only FS)
│   ├── Week 10 (Tue) ➔ Session 19: Container Observability (Metrics Collection, Prometheus, Grafana & cAdvisor Setup)
│   └── Week 10 (Thu) ➔ Session 20: ⚡ Mini-Project Lab: Build & Secure Production Docker Stack for Microservices
│
├── 🟣 PHASE 4: Kubernetes Architecture & Core Primitives (Sessions 21–30)
│   ├── Week 11 (Tue) ➔ Session 21: Why Kubernetes? (Container Sprawl, Orchestration Problems & Control Plane Goals)
│   ├── Week 11 (Thu) ➔ Session 22: K8s Architecture Deep Dive (API Server, etcd, Scheduler, Controller Manager, Kubelet)
│   ├── Week 12 (Tue) ➔ Session 23: Kubernetes Installation & Setup (Minikube, Kind, K3s, kubeadm & Cloud EKS/GKE)
│   ├── Week 12 (Thu) ➔ Session 24: Kubernetes API & kubectl (Declarative YAML, Imperative commands, Selectors & Labels)
│   ├── Week 13 (Tue) ➔ Session 25: Pod Mechanics & Patterns (Pause container, Pod IP, Sidecar, Ambassador & Adapter)
│   ├── Week 13 (Thu) ➔ Session 26: Deployments & ReplicaSets (Reconciliation loops, Rolling Updates & Rollbacks)
│   ├── Week 14 (Tue) ➔ Session 27: Kubernetes Services (ClusterIP, NodePort, LoadBalancer & Endpoints routing)
│   ├── Week 14 (Thu) ➔ Session 28: CoreDNS & Service Discovery (Pod DNS, Service FQDN & Cluster-internal lookup)
│   ├── Week 15 (Tue) ➔ Session 29: ConfigMaps & Secrets (Env Injection, Volume Mounts, Base64 vs Encryption)
│   └── Week 15 (Thu) ➔ Session 30: Health Probes in K8s (Liveness /healthz, Readiness /ready, Startup Probes for APIs)
│
├── 🟠 PHASE 5: Kubernetes Networking & Storage (Sessions 31–38)
│   ├── Week 16 (Tue) ➔ Session 31: K8s Networking Model (Pod Network, Node Network, Service Network, Cluster CIDR)
│   ├── Week 16 (Thu) ➔ Session 32: CNI Plugins & eBPF (Calico, Cilium, Flannel, veth pairs & Kernel packet routing)
│   ├── Week 17 (Tue) ➔ Session 33: Network Policies (Ingress/Egress rules, Namespace/Pod selectors, Microsegmentation)
│   ├── Week 17 (Thu) ➔ Session 34: Ingress Controllers (NGINX, Traefik, Host/Path Routing, TLS Termination)
│   ├── Week 18 (Tue) ➔ Session 35: Kubernetes Gateway API (Gateway, GatewayClass, HTTPRoute, Modern Routing)
│   ├── Week 18 (Thu) ➔ Session 36: Storage Architecture (emptyDir, hostPath, PersistentVolume, PVC & StorageClasses)
│   ├── Week 19 (Tue) ➔ Session 37: StatefulSets (Stateful workloads, Headless Services, Postgres/Redis ordering)
│   └── Week 19 (Thu) ➔ Session 38: DaemonSets, Jobs & CronJobs (Log collectors, Monitoring agents & Batch jobs)
│
├── 🔴 PHASE 6: Scheduling, Resources & Autoscaling (Sessions 39–42)
│   ├── Week 20 (Tue) ➔ Session 39: Advanced Scheduling (Node Selection, nodeSelector, Node/Pod Affinities, Anti-affinity)
│   ├── Week 20 (Thu) ➔ Session 40: Resource Management (Requests, Limits, QoS Classes: Guaranteed/Burstable, LimitRanges)
│   ├── Week 21 (Tue) ➔ Session 41: Taints & Tolerations (Node isolation, Dedicated pools & GPU Workload placement)
│   └── Week 21 (Thu) ➔ Session 42: Kubernetes Autoscaling (HPA, VPA, Cluster Autoscaler, Metrics Server & Custom Metrics)
│
├── 🛡️ PHASE 7: Cluster Security & Access Control (Sessions 43–44)
│   ├── Week 22 (Tue) ➔ Session 43: Security Model (Authentication, Authorization, Admission Controllers & Webhooks)
│   └── Week 22 (Thu) ➔ Session 44: RBAC Deep Dive (Roles, ClusterRoles, RoleBindings, ServiceAccounts & API access)
│
├── 🟡 PHASE 8: Advanced Extensions & Operations (Sessions 45–48)
│   ├── Week 23 (Tue) ➔ Session 45: Helm Package Manager (Charts, Templates, Values, Dependencies, Hooks & Releases)
│   ├── Week 23 (Thu) ➔ Session 46: CRDs & Operators (Custom Resource Definitions, Controllers & Reconciliation Loops)
│   ├── Week 24 (Tue) ➔ Session 47: Full Observability Stack (Prometheus, Grafana, Loki, FluentBit & OpenTelemetry)
│   └── Week 24 (Thu) ➔ Session 48: 🛠️ Cluster Break & Fix Lab: Debugging CrashLoopBackOff, OOMKilled, CNI & PVC lockups
│
└── 🏆 PHASE 9: Production Kubernetes & AI Agent Capstone (Sessions 49–50)
    ├── Week 25 (Tue) ➔ Session 49: Production HA & GitOps (Multi-AZ Control Plane, etcd Backups, Argo CD & Canary)
    └── Week 25 (Thu) ➔ Session 50: 🚀 FINAL CAPSTONE: Deploy Production AI Agent Platform Project on Kubernetes