New PDF release: 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 take advantage of the ability of Docker and Kubernetes to install your Rails functions simply and successfully. Docker and Kubernetes are expanding in acceptance each day, yet what so as to leverage their merits on your Rails program? this is often the e-book you need.

Deploying Rails with Docker, Kubernetes and ECS shows you ways to establish the undertaking, push it to DockerHub, deal with companies and manage a good non-stop integration surroundings. each idea is obviously defined along an entire Ruby on Rails software deployment. You’ll additionally find out how to install through Docker utilizing Amazon EC2 box Service.

What you are going to 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 appliance with Kubernetes
  • How to create a Kubernetes cluster in Amazon internet companies and run your
  • How to examine and troubleshoot difficulties within the cluster
  • How to automatize the the total deployment procedure with Jenkins

Who This ebook Is For
This e-book is for someone who desires to know how to successfully set up a Rails program 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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Extra info for Deploying Rails with Docker, Kubernetes and ECS

Example text

In a deployment declaration, you can have your replica set and pod specifications declared together. 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.

Let’s find our service address and make a post request to our articles end point. First we need our Minikube VM IP. 7 And now the port the cluster assigned to our service. 7:30028. In your case, you have to find your NodePort in the service description in order to find the exposed port. 285Z"}% Great! We have our application fully running in our local Kubernetes cluster. The transition to a production cluster will not be hard at all. We just need to configure two more elements in our architecture: the load balancers and the volume for persisting the data.

You can declare that your service should be a load balancer and Kubernetes will create and associate one automatically. Following is an example for a load balancer service for our web app: apiVersion: v1 kind: Service metadata: name: webapp labels: app: webapp spec: ports: - port: 80 selector: app: webapp tier: frontend type: LoadBalancer Pretty simple, besides the metadata, we indicate we want to expose the port 80 and the type should be a load balancer. As I said before, Kubernetes will create a new ELB (Elastic Load Balancer) in our AWS account and it’ll be associated with the pods that match the metadata with this service.

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Deploying Rails with Docker, Kubernetes and ECS by Pablo Acuña

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