Download PDF by Pablo Acuña: Deploying Rails with Docker, Kubernetes and ECS

By Pablo Acuña

ISBN-10: 1484224140

ISBN-13: 9781484224144

ISBN-10: 1484224159

ISBN-13: 9781484224151

This concise teaches you the way to exploit the ability of Docker and Kubernetes to set up your Rails purposes simply and successfully. Docker and Kubernetes are expanding in recognition on a daily basis, yet what which will leverage their advantages in your Rails program? this can be the ebook you need.

Deploying Rails with Docker, Kubernetes and ECS shows you ways to establish the venture, push it to DockerHub, deal with companies and organize an effective non-stop integration setting. each notion is obviously defined along a whole Ruby on Rails program deployment. You’ll additionally easy methods to set up through Docker utilizing Amazon EC2 box Service.

What you'll Learn

  • How to create a Rails API software utilizing Rails five and PostgreSQL, and Dockerize it
  • How to jot down and try templates to run the applying with Kubernetes
  • How to create a Kubernetes cluster in Amazon net companies and run your
  • How to examine and troubleshoot difficulties within the cluster
  • How to automatize the the full deployment procedure with Jenkins

Who This publication Is For
This booklet is for an individual who desires to know how to successfully installation a Rails software utilizing Docker and Kubernetes. it is important to comprehend Rails and feature easy wisdom of what Docker and Kubernetes are used for.

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Additional info for Deploying Rails with Docker, Kubernetes and ECS

Sample text

18 Chapter 1 ■ Development First, we have to tell Git that this is a repository, so in the root of your application run the following: $ git init $ git add -A $ git commit -m 'Add dockerized Rails app' Now we can save the short version of the latest commit hash with $ LC=$(git rev-parse --short HEAD) It’s very convenient for tagging our image to use that variable instead of copying the string. Let’s build our first image using that tag. Replace my username with your DockerHub username and also the repository name in case you didn’t use webapp.

Using deployments is recommended over using replication sets and pods independently. 33 Chapter 3 ■ Kubernetes Structuring the Files In order to keep a better application structure, let’s add some folders for the Kubernetes configuration. We’ll use a kube folder, and subfolders for every Kubernetes type we need. For now, let’s create deployments and jobs subfolders. $ mkdir -p kube $ mkdir -p kube/deployments $ mkdir -p kube/jobs Templates PostgreSQL Let’s create a deployment file for the PostgreSQL service.

The deployment will be in charge of running updates to the state of these elements. So you can update the image in your deployment, and the respective replication set and pods will be updated as well. 3 name: postgres env: - name: POSTGRES_PASSWORD value: mysecretpassword - name: POSTGRES_USER value: webapp - name: POSTGRES_DB value: webapp_production ports: - containerPort: 5432 name: postgres This deployment template contains a replica set and pod in its specification. With this individual file, you can have a pod and a replica set and you can run updates to both with only one command.

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Deploying Rails with Docker, Kubernetes and ECS by Pablo Acuña

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