Book Image

Modern DevOps Practices

By : Gaurav Agarwal
Book Image

Modern DevOps Practices

By: Gaurav Agarwal

Overview of this book

Containers have entirely changed how developers and end-users see applications as a whole. With this book, you'll learn all about containers, their architecture and benefits, and how to implement them within your development lifecycle. You'll discover how you can transition from the traditional world of virtual machines and adopt modern ways of using DevOps to ship a package of software continuously. Starting with a quick refresher on the core concepts of containers, you'll move on to study the architectural concepts to implement modern ways of application development. You'll cover topics around Docker, Kubernetes, Ansible, Terraform, Packer, and other similar tools that will help you to build a base. As you advance, the book covers the core elements of cloud integration (AWS ECS, GKE, and other CaaS services), continuous integration, and continuous delivery (GitHub actions, Jenkins, and Spinnaker) to help you understand the essence of container management and delivery. The later sections of the book will take you through container pipeline security and GitOps (Flux CD and Terraform). By the end of this DevOps book, you'll have learned best practices for automating your development lifecycle and making the most of containers, infrastructure automation, and CaaS, and be ready to develop applications using modern tools and techniques.
Table of Contents (19 chapters)
1
Section 1: Container Fundamentals and Best Practices
7
Section 2: Delivering Containers
15
Section 3: Modern DevOps with GitOps

Questions

  1. All communication with Kubernetes happens via which one of the following?

    A. Kubelet

    B. API server

    C. Etcd

    D. Controller Manager

    E. Scheduler

  2. Which one of the following is responsible for ensuring that the cluster is in the desired state?

    A. Kubelet

    B. API server

    C. Etcd

    D. Controller Manager

    E. Scheduler

  3. Which one of the following is responsible for storing the desired state of the cluster?

    A. Kubelet

    B. API server

    C. Etcd

    D. Controller Manager

    E. Scheduler

  4. A pod can contain more than one container (True/False).
  5. You can use port-forwarding for which one of the following use cases (multiple answers are possible)?

    A. For troubleshooting a misbehaving pod

    B. For exposing a service to the internet

    C. For accessing a system service such as the Kubernetes dashboard

  6. Using a combination of which two probes can you ensure that your application is reliable even when your application has some intermittent issues (choose two)?

    A. Startup probe

    B. Liveness probe

    C. Readiness probe...