DevOps

DEPLOYING A PLAY APPLICATION(SCALA) WITH ANSIBLE ON AWS

In this blog, I will be demonstrating how to create an AWS instance and how to deploy your play application on that AWS instance using Ansible. First let’s see how to make an AWS instance:- Login to AWS console Click on launch instance on top and select the free instance Select the machine which you want to set up. Click on Configure Instance Details -> Continue Reading

10 Easy To Use Modules In Ansible

Ansible is all about using modules in its playbook. Here are my top 10 commonly used modules:- Before reading this blog I would like to explain some terminologies used below:- test-servers:- It is the group of my hosts which I have written in my inventory file. 2. – m XYZ:- XYZ is the module name 3. -u ec2-user:- to define username that is ec2-user 4. Continue Reading

DynamoDB Core Components

Amazon DynamoDB: Core Components

  DynamoDB is a part of Amazon Web Services. It is a NoSQL database, which supports key-value and document data structures. In this blog, we will be discussing Core components of DynamoDb. Features of DynamoDb: It is a fully managed NoSQL database. It can store & retrieve any amount of data, and can serve any amount of traffic. To maintain fast performance, it distributes data Continue Reading

Log Rotate: Managing Your Cluster Log Made Easy

Log Rotation through Ansible to compress log files and save disk space.

Distributed Transactions and Saga Patterns

In a Knolx session organized by Knoldus, we discussed the idea of following Saga Patterns. For that to be more accessible, I’d like to share the session with the help of this blog. Service-oriented architecture has given us enough advantages to be a predominant architecture in our Industry, but it can’t be all sunshine and rainbows. There are use cases where monoliths are not only Continue Reading

Akka http with json4s

Akka Http uses the spray-json library for JSON support. But a few days back while working on a project which was using the json4s library for marshalling/unmarshalling, I got stuck during parsing of JSON request and extracting that parsed values into my target Scala data model.

Introduction to Consul (Part-1)

In this blog, we are going to discuss an amazing tool used for service discovery and configuring services using Consul. Hold on a second!! There must be some questions in your mind: Aren’t there so many tools already doing that and are being used by everyone? Wow !! I have been using tools like Zookeeper for service discovery, And they are pretty good. Now, do Continue Reading

Ansible

Ansible Playbooks vs Roles: Part I – The Playbook

I assume you know with basics of Ansible and familiar with the terminologies of Ansible. If not, you can visit our previous starter blog.  In this blog, we will take a look on how we can quickly start writing Ansible playbooks with a simple example and in the later or next part of the blog, we will look at how they can be reused to Continue Reading

Fault Handling in Apigee

Hi all, In my previous blogs on APIGEE we: Went through the basic introduction of Apigee. Went through the main policies and how to apply them on our proxies. Saw how to extract out a header, extract a list of values out of a header. If you like you can go through those once again here: Basics of Apigee. click here Playing with Policies. click here Extract the Continue Reading

Running Spark on DC/OS

Devops engineers for long needed an open source tool to make it easy to deploy the code developed through all the ups and downs to reach this far and is considerably more capable of evolving (pun intended). As we all know in this world of agile we need to shift our requirements after a short duration of time. Be it addition of a feature or tweaking Continue Reading

How to create your first docker images and run it in a docker container via command line?

So, Don’t you hate it when you are into deployments and don’t know how to go about docker and stuff. Today, we will talk about creating docker images and running it in a container via docker command line. It might sound frustrating and not easy but It’s possible and I will show you how. To make things easier from the beginning I have divided the Continue Reading

Create AWS Lambda with ease

Hi readers, this is my second blog on AWS lambda, I covered the basics in my previous blogs. Now we will focus on the implementation part. Before starting, please keep a check on these things: Prerequisite Setup your AWS account, click here  Understanding what AWS Lambda is? click here All set let’s start.

NGINX – Understanding and Setting up a reverse proxy server

Let’s start by understanding what a reverse proxy server means and then I’ll lay down the steps for setting up such a server using our beloved NGINX. A reverse proxy server is one which helps in directing client requests to other (usually backend) servers or to multiple applications hosted on the same server on different ports. You can think of it as an abstraction layer Continue Reading

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