Book Image

The Docker Workshop

By : Vincent Sesto, Onur Yılmaz, Sathsara Sarathchandra, Aric Renzo, Engy Fouda
5 (3)
Book Image

The Docker Workshop

5 (3)
By: Vincent Sesto, Onur Yılmaz, Sathsara Sarathchandra, Aric Renzo, Engy Fouda

Overview of this book

No doubt Docker Containers are the future of highly-scalable software systems and have cost and runtime efficient supporting infrastructure. But learning it might look complex as it comes with many technicalities. This is where The Docker Workshop will help you. Through this workshop, you’ll quickly learn how to work with containers and Docker with the help of practical activities.? The workshop starts with Docker containers, enabling you to understand how it works. You’ll run third party Docker images and also create your own images using Dockerfiles and multi-stage Dockerfiles. Next, you’ll create environments for Docker images, and expedite your deployment and testing process with Continuous Integration. Moving ahead, you’ll tap into interesting topics and learn how to implement production-ready environments using Docker Swarm. You’ll also apply best practices to secure Docker images and to ensure that production environments are running at maximum capacity. Towards the end, you’ll gather skills to successfully move Docker from development to testing, and then into production. While doing so, you’ll learn how to troubleshoot issues, clear up resource bottlenecks and optimize the performance of services. By the end of this workshop, you’ll be able to utilize Docker containers in real-world use cases.
Table of Contents (17 chapters)
Preface

9. Docker Swarm

Activity 9.01: Deploying the Panoramic Trekking App to a Single-Node Docker Swarm

Solution:

There are a number of ways in which you can perform this activity. These steps are one way to do it:

  1. Create a directory for the application. In this instance, you will create a directory called Activity1 and move into the new directory using the cd command:
    mkdir Activity1; cd Activity1
  2. Clone the application from its GitHub repository to ensure that you will have all the relevant information and applications needed for the Panoramic Trekking App services you want to deploy to your swarm:
    git clone https://github.com/vincesesto/trekking_app.git
  3. You won't need any of the supporting directories for NGINX, but ensure that your web service and database running are listed here, including the panoramic_trekking_app and photo_viewer directories and the Dockerfile, entrypoint.sh, manage.py, and requirements.txt scripts and files:
    ls -l

    The command should return...