Kubernetes Patterns: Reusable Elements for Designing Cloud Native Applications, 2nd Edition

Length: 390 pages
Edition: 2
Language: English
Publisher: O'Reilly Media
Publication Date: 2023-04-25
ISBN-10: 1098131681
ISBN-13: 9781098131685
Sales Rank: #2620175 (See Top 100 Books)

The way developers design, build, and run software has changed significantly with the evolution of microservices and containers. These modern architectures offer new distributed primitives that require a different set of practices than many developers, tech leads, and architects are accustomed to. With this focused guide, Bilgin Ibryam and Roland Huss provide common reusable patterns and principles for designing and implementing cloud native applications on Kubernetes.

Each pattern includes a description of the problem and a Kubernetes-specific solution. All patterns are backed by and demonstrated with concrete code examples. This updated edition is ideal for developers and architects familiar with basic Kubernetes concepts who want to learn how to solve common cloud native challenges with proven design patterns.

You’ll explore:

Foundational patterns covering core principles and practices for building and running container-based cloud native applications
Behavioral patterns that delve into finer-grained concepts for managing various types of container and platform interactions
Structural patterns for organizing containers within a Pod for addressing specific use cases
Configuration patterns that provide insight into how application configurations can be handled in Kubernetes
Security patterns for hardening the access to cloud native applications running on Kubernetes Advanced patterns covering more complex topics such as operators and autoscaling

Foreword
Preface
    Kubernetes
    Design Patterns
    How This Book Is Structured
    Who This Book Is For
    What You Will Learn
    What’s New in the Second Edition
    Conventions Used in This Book
    Using Code Examples
    O’Reilly Online Learning
    How to Contact Us
    Acknowledgments
1. Introduction
    The Path to Cloud Native
    Distributed Primitives
        Containers
        Pods
        Services
        Labels
        Namespaces
    Discussion
    More Information
I. Foundational Patterns
2. Predictable Demands
    Problem
    Solution
        Runtime Dependencies
        Resource Profiles
        Pod Priority
        Project Resources
        Capacity Planning
    Discussion
    More Information
3. Declarative Deployment
    Problem
    Solution
        Rolling Deployment
        Fixed Deployment
        Blue-Green Release
        Canary Release
    Discussion
    More Information
4. Health Probe
    Problem
    Solution
        Process Health Checks
        Liveness Probes
        Readiness Probes
        Startup Probes
    Discussion
    More Information
5. Managed Lifecycle
    Problem
    Solution
        SIGTERM Signal
        SIGKILL Signal
        PostStart Hook
        PreStop Hook
        Other Lifecycle Controls
    Discussion
    More Information
6. Automated Placement
    Problem
    Solution
        Available Node Resources
        Container Resource Demands
        Scheduler Configurations
        Scheduling Process
        Node Affinity
        Pod Affinity and Anti-Affinity
        Topology Spread Constraints
        Taints and Tolerations
    Discussion
    More Information
II. Behavioral Patterns
7. Batch Job
    Problem
    Solution
    Discussion
    More Information
8. Periodic Job
    Problem
    Solution
    Discussion
    More Information
9. Daemon Service
    Problem
    Solution
    Discussion
    More Information
10. Singleton Service
    Problem
    Solution
        Out-of-Application Locking
        In-Application Locking
        Pod Disruption Budget
    Discussion
    More Information
11. Stateless Service
    Problem
    Solution
        Instances
        Networking
        Storage
    Discussion
    More Information
12. Stateful Service
    Problem
        Storage
        Networking
        Identity
        Ordinality
        Other Requirements
    Solution
        Storage
        Networking
        Identity
        Ordinality
        Other Features
    Discussion
    More Information
13. Service Discovery
    Problem
    Solution
        Internal Service Discovery
        Manual Service Discovery
        Service Discovery from Outside the Cluster
        Application Layer Service Discovery
    Discussion
    More Information
14. Self Awareness
    Problem
    Solution
    Discussion
    More Information
III. Structural Patterns
15. Init Container
    Problem
    Solution
    Discussion
    More Information
16. Sidecar
    Problem
    Solution
    Discussion
    More Information
17. Adapter
    Problem
    Solution
    Discussion
    More Information
18. Ambassador
    Problem
    Solution
    Discussion
    More Information
IV. Configuration Patterns
19. EnvVar Configuration
    Problem
    Solution
    Discussion
    More Information
20. Configuration Resource
    Problem
    Solution
    Discussion
    More Information
21. Immutable Configuration
    Problem
    Solution
        Docker Volumes
        Kubernetes Init Containers
        OpenShift Templates
    Discussion
    More Information
22. Configuration Template
    Problem
    Solution
    Discussion
    More Information
V. Security Patterns
23. Process Containment
    Problem
    Solution
        Running Containers with a Non-Root User
        Restricting Container Capabilities
        Avoiding a Mutable Container Filesystem
        Enforcing Security Policies
    Discussion
    More Information
24. Network Segmentation
    Problem
    Solution
        Network Policies
            Network segment definition with labels
            Deny-all as default policy
            Ingress
            Egress
            Tooling
        Authentication Policies
    Discussion
    More Information
25. Secure Configuration
    Problem
    Solution
        Out-of-Cluster Encryption
            Sealed Secrets
            External Secrets
            Sops
        Centralized Secret Management
            Secrets Store CSI Driver
            Pod injection
    Discussion
    More Information
26. Access Control
    Problem
    Solution
        Authentication
        Authorization
        Admission Controllers
        Subject
            Users
            Service accounts
            Groups
        Role-Based Access Control
            Role
            RoleBinding
            ClusterRole
            ClusterRoleBinding
    Discussion
    More Information
VI. Advanced Patterns
27. Controller
    Problem
    Solution
    Discussion
    More Information
28. Operator
    Problem
    Solution
        Custom Resource Definitions
        Controller and Operator Classification
        Operator Development and Deployment
            Kubebuilder
            Operator framework
            Metacontroller
        Example
    Discussion
    More Information
29. Elastic Scale
    Problem
    Solution
        Manual Horizontal Scaling
            Imperative scaling
            Declarative scaling
        Horizontal Pod Autoscaling
            Kubernetes HorizontalPodAutoscaler
            Knative
            KEDA
        Vertical Pod Autoscaling
        Cluster Autoscaling
        Scaling Levels
            Application tuning
            Vertical Pod autoscaling
            Horizontal Pod autoscaling
            Cluster autoscaling
    Discussion
    More Information
30. Image Builder
    Problem
    Solution
        Container Image Builder
            Dockerfile-Based builders
            Multilanguage builders
            Specialized builders
        Build Orchestrators
        Build Pod
        OpenShift Build
            Source-to-Image
            Docker builds
            Chained builds
    Discussion
    More Information
Afterword
    What We Covered
    Final Words
Index

Cloud Computing Programming Software Design Software Development Software Reuse Testing & Engineering Tools

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