Cloud

Managing Terraform State

In this blog, We are going to learn how Terraform keeps tracks the state of your infrastructure and configuration. With the help of an example, we will learn how can we store state file to a remote location. We can create infrastructure on a cloud in various ways using CLI, directly using UI or any automation tool like terraform etc. Then how terraform would know Continue Reading

Let’s create your first Grafana dashboard

In my previous blog, we discussed the setup of Grafana-Graphite for JMX monitoring.  Now we will create a first Grafana dashboard where we will create Grafana queries to visualize JMX metrics stored in Graphite. As we know, Grafana UI runs on http://localhost:3000/ by default so let’s open the URL in the browser with the default username and password which is admin: admin After login either Continue Reading

Running jmx2graphite as a java agent to push the JMX metrics into Graphite

In my previous blog, we discussed how to monitor a Kafka stream application using Grafana and Graphite. In this solution, we used jmx2graphite as a metrics exporter which takes the metrics from the Jolokia URL where Jolokia exposes the JMX metrics and pushes those metrics to Graphite. But, there is a problem with this solution that we need to deploy one jmx2graphite per service. So Continue Reading

Firebase: RealtimeDB & Firestore

Recently, while searching for persistence solutions for one of our projects, we started considering the hosted and managed offerings on the Firebase Platform. Firebase has two primary database offerings, the original Realtime Database (RtDB) and the newer Cloud Firestore (CFS) which is currently in beta. In this post, we’ll briefly list down some of the current similarities and differences that we encountered while tinkering with 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

Unveiling The Mystery Of Serverless

In this blog, we will explore about Serverless and why it is trending so much? Serverless, is itself a self-explanatory word, means there are no servers. But, is it really true? No, it is not. Serverless does not mean the absence of servers. There are servers actually, it’s just that we don’t have to manage them. All the infrastructure is provided by companies like AWS, Google, Azure Continue Reading

Terraform: Enabling developer to create and manage deployment through code

In this blog post, We will walk you through Terraform which is a tool for building, changing, and versioning infrastructure safely and efficiently. Terraform enables the developers to properly manage the infrastructure through code. The set of files used to describe infrastructure in Terraform is simply known as a Terraform configuration. These files have extension .tf. Configuration files describe to Terraform the components needed to Continue Reading

Mounting EBS(Elastic Block Store) volume to EC2(Elastic Compute Cloud) instance.

In this blog we will consider simple steps by which we can attach and mount a volume(elastic block store) to an ec2 instance. Following steps must be followed : Step 1 -> Creating an ec2 instance We will be creating a Linux instance (m4.large) which comes with Cent OS as the default operating system. Steps of creating an instance are clearly mentioned in official amazon docs, Continue Reading

Introduction to AWS IAM

AWS IAM roles is a web service which gives you secured “Control Access” to AWS services for your users. IAM policies specify which services/actions are allowed or denied. You attach policies to group, users, roles which are then subject to permission that you define. In other words, IAM policies define what your user can do to your AWS services. IAM is Identity and Access management Continue Reading

Scala in Business | Knoldus Newsletter – April 2015

Hello Folks We are back again with April 2015, Newsletter. Here is this Scala in Business | Knoldus Newsletter – April 2015 In this newsletter, you will get the business related news for Scala. How organisation are adopting Scala for their business, how Scala related technologies increasing the performance of application and how Scala is getting popular in the industry So, if you haven’t subscribed to Continue Reading

Conditional logging with Logback in Scala

Hello Folks In my project , i got a scenario where I wanted conditional logging. I was using Logback framework for the same. I wanted to set different logging level for staging and production. Either i could do manually changes in logback.xml for logging level for staging and production both. But this is not the good practice. Then I found the solution of implementing the Continue Reading

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