DevOps Tools Guide

DevOps Tools Complete Guide

A comprehensive guide covering Docker, Kubernetes, Terraform, Ansible, and modern DevOps practices. This guide takes you from fundamentals to advanced production-ready configurations.

Part 1: Docker Fundamentals (Chapters 01-10)

01_docker_introduction - What is Docker, Containers vs VMs, Docker Architecture
02_docker_installation - Installing Docker on Linux, macOS, Windows
03_docker_images - Docker Images, Registries, Pull/Push
04_docker_containers - Running Containers, Container Lifecycle
05_dockerfiles - Writing Dockerfiles, Best Practices
06_docker_networking - Docker Networks, Bridge, Host, Overlay
07_docker_volumes - Data Persistence, Volumes, Bind Mounts
08_docker_compose - Docker Compose for Multi-container Apps
09_docker_registry - Private Registries, Docker Hub
10_docker_best_practices - Security, Optimization

Part 2: Docker Advanced (Chapters 11-15)

11_docker_swarm - Docker Swarm Mode, Orchestration Basics
12_docker_security - Container Security, Seccomp, AppArmor
13_docker_monitoring - Logging, Monitoring Containers
14_docker_networking_advanced - Custom Networks, DNS, Load Balancing
15_docker_ci_cd - Docker in CI/CD Pipelines

Part 3: Kubernetes Fundamentals (Chapters 16-25)

16_kubernetes_introduction - What is Kubernetes, K8s Architecture
17_kubernetes_installation - Minikube, kind, k3s
18_kubernetes_pods - Pods, Pod Lifecycle
19_kubernetes_replicasets - ReplicaSets, Scaling
20_kubernetes_deployments - Deployments, Rolling Updates
21_kubernetes_services - Services, ClusterIP, NodePort, LoadBalancer
22_kubernetes_configmaps_secrets - Configuration Management
23_kubernetes_storage - Persistent Volumes, Storage Classes
24_kubernetes_namespaces - Namespaces, Resource Quotas
25_kubernetes_labels_selectors - Labels, Selectors, Annotations

Part 4: Kubernetes Advanced (Chapters 26-32)

26_kubernetes_ingress - Ingress Controllers, Routing
27_kubernetes_hpa - Horizontal Pod Autoscaling
28_kubernetes_statefulsets - StatefulSets, DaemonSets
29_kubernetes_network_policies - Network Policies
30_kubernetes_rbac - RBAC, Service Accounts
31_helm_charts - Helm Package Manager
32_kubernetes_operators - Operators, Custom Resources

Part 5: Terraform & IaC (Chapters 33-46)

33_terraform_introduction - What is IaC, Terraform Overview
34_terraform_basics - Providers, Resources, Data Sources
35_terraform_variables - Variables, Outputs, Locals
36_terraform_state - State Management, Remote Backends
37_terraform_modules - Modular Infrastructure
38_terraform_best_practices - Workspace, Terragrunt
39_terraform_cicd - Terraform in CI/CD
40_cloudformation - AWS CloudFormation Overview
41_terraform_testing - Terratest, TFLint, Checkov
42_terraform_policy_as_code - OPA, Sentinel, Conftest
43_terraform_terragrunt - Multi-environment Management
44_terraform_multicloud - AWS, Azure, GCP Patterns
45_terraform_provider_development - Custom Provider Development
46_terraform_workspaces_advanced - Advanced Workspace Patterns

Part 6: Ansible (Chapters 41-48)

41_ansible_introduction - What is Ansible, Agentless Architecture
42_ansible_inventory - Inventory, Groups, Variables
43_ansible_playbooks - Playbooks, Tasks, Modules
44_ansible_roles - Roles, Galaxy, Best Practices
45_ansible_advanced - Conditionals, Loops, Vault
46_ansible_awx - AWX/Tower, RBAC, Workflows
47_ansible_collections - Collections, Galaxy, Publishing
48_ansible_kubernetes - K8s Modules, Helm Integration

Part 7: CI/CD & DevOps Practices (Chapters 46-57)

46_cicd_overview - CI/CD Pipeline Concepts
47_jenkins - Jenkins Master-Slave, Pipelines
48_github_actions - GitHub Actions Workflows
49_gitlab_ci - GitLab CI/CD
50_advanced_devops - Advanced DevOps Concepts
51_chaos_engineering - Chaos Engineering Principles
52_service_mesh - Istio, Linkerd, Service Mesh
53_container_security - Container Security Best Practices
54_incident_management - Incident Response, Post-Mortems
55_gitops - ArgoCD, Flux, GitOps Patterns
56_platform_engineering - IDPs, Golden Paths, Backstage
57_finops - Cloud Cost Management, Optimization

Prerequisites

Basic understanding of Linux command line
Basic understanding of networking concepts
Familiarity with cloud computing concepts (AWS, GCP, Azure)

Learning Path

┌─────────────────────────────────────────────────────────────────────────────┐
│                        DevOps Tools Learning Path                           │
├─────────────────────────────────────────────────────────────────────────────┤
│                                                                             │
│   ┌──────────────┐                                                          │
│   │   Docker     │                                                          │
│   │  Fundamentals│                                                          │
│   └──────┬───────┘                                                          │
│          │                                                                   │
│          ▼                                                                   │
│   ┌──────────────┐     ┌──────────────┐                                     │
│   │   Docker     │     │ Kubernetes   │                                     │
│   │  Advanced    │     │  Fundamentals│                                     │
│   └──────────────┘     └──────┬───────┘                                     │
│                               │                                             │
│                               ▼                                             │
│                        ┌──────────────┐                                    │
│                        │ Kubernetes   │                                    │
│                        │  Advanced    │                                    │
│                        └──────┬───────┘                                    │
│                               │                                             │
│          ┌────────────────────┼────────────────────┐                       │
│          ▼                    ▼                    ▼                       │
│   ┌──────────────┐     ┌──────────────┐     ┌──────────────┐              │
│   │   Terraform  │     │    Ansible   │     │    CI/CD     │              │
│   │     (IaC)    │     │ (Automation) │     │   Tools      │              │
│   └──────────────┘     └──────────────┘     └──────────────┘              │
│                                                                             │
│                               │                                             │
│                               ▼                                             │
│                        ┌──────────────┐                                    │
│                        │  Advanced    │                                    │
│                        │   DevOps     │                                    │
│                        │ (GitOps, SRE)│                                    │
│                        └──────────────┘                                    │
│                                                                             │
└─────────────────────────────────────────────────────────────────────────────┘

Quick Start

Docker Quick Start

# Run your first container
docker run hello-world

# Run a web server
docker run -d -p 8080:80 nginx

# Build an image
docker build -t myapp:latest .

# Run with docker-compose
docker-compose up -d

Kubernetes Quick Start

# Create a deployment
kubectl create deployment myapp --image=nginx

# Scale the deployment
kubectl scale deployment myapp --replicas=3

# Expose as service
kubectl expose deployment myapp --port=80 --type=LoadBalancer

Terraform Quick Start

# Initialize terraform
terraform init

# Plan changes
terraform plan

# Apply changes
terraform apply

# Destroy resources
terraform destroy

Ansible Quick Start

# Run a playbook
ansible-playbook -i inventory playbook.yml

# Test connection
ansible all -m ping

Contributing

This guide is part of the Flowchart Learning project. Contributions are welcome!