Blogs

While working in any iOS application, we need to build our app for multiple environments i.e. Development, Production, UAT, QA. Now a days it becomes a common practice for any app to integrate social media, analytics, crash reporter, third party tools, sdks inside apps. Each of these environment have different set of urls to point […]

Recently, I came across an interesting use case i.e to put alarms on custom metrics of autoscaling instances. Lets consider there is an autoscaling group for production environment and you need to put alarm on disk and memory utilization custom metrics. To accomplish that you need to follow the steps described below: 1. Create disk […]

MongoDB is a popular NoSQL database that stores data in JSON like documents dynamic schemas instead of storing your data in tables and rows as you do with a relational database. In this blog we will setup Mongo DB replication on single node to demonstrate high availability and failover mechanism. What is a MongoDB Replica […]

Polymer is not another framework, in fact it sits a layer below all these frameworks. It is used to create actual HTML elements, which are independent of the implementation on top of them. Take for example a simple HTML button, it works on every browser, has roughly the same visuals and functionality. A button on the web can work with any of the front end frameworks.

Recently AWS started a new feature of attaching and detaching the Load Balancer in an Auto-Scaling Group. If we attach a load balancer to an auto-scaling group it allows the load balancer to send traffic to the EC2 instance in the group. And when we are detaching a load balancer from a group stops it […]

In my recent use case , I thought of migrating EC2 classic elastic IP from EC2 classic to EC2-VPC. So now Amazon does provide this feature to migrate Ip form EC2 classic to EC2 VPC but not sure when it was released. As of know it can be only done using EC2 Query API or […]

There are many occasions when we require our jenkins jobs to be executed in a predefined order. Jenkins Coordinator Plugin can help us achieve that. This post will walk you through how to use this plugin to run your jobs  in a particular sequence. Suppose we have four jobs :  Job1, Job2 ,Job3, Job4. We […]

Today we’re going to demonstrate the use of switch role feature that AWS has introduced a few months back. This feature enables an IAM user to use switch role directly in AWS Management Console to access resources across multiple AWS accounts. E.g Lets say an IAM user X of Account 1 wants to access resources […]

Docker machine is  a new advancement of Docker team to manage docker servers. Using this tool, different docker server or hosts can be managed from a single workstation, be them in local LAN or on public or private cloud. Using docker-machine, we can provision docker instance at virtualbox, AWS, azure cloud, digital ocean, rackspace, openstack […]

Puppet Dashboard is a puppet user interface that gives you a bird eye view of system configurations. It shows the list of nodes that can be in changed, unchanged, pending, failed or unreported state. You can manage all your nodes from the dashboard without login into the puppet master server Requirements: Puppet Master (2.7.25) Install […]

The ubiquitousness of social media makes it a hot tool to handle.  It can either bring in more followers to your brand when managed effectively or can run down your reputation in no time. Needless to say, in the recent years social media strategy has become a prime concern for organizations of all sizes, from […]

Docker has gained a lot of attention these days. The main reasons which we know of are that it saves a lot of resources & one can have n number of environments within one server/machine. It being platform independent, is one more plus point for using docker & hence is one of the fastest growing […]