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CHEF is the most popular configuration management tool in the market these days as CHEF turns infrastructure into code and you can do almost anything using it. Recipes are the heart of CHEF. OpsWorks has been gaining a lot of momentum for last few months, the major factor being its support for CHEF. So, in this blog we will be discussing...
PostgreSQL is another SQL. It is the second most popular Structured Query Language after MySQL. The steps discussed in the blog can be used for any kind of migration of PostgreSQL. From on-premise to cloud or on-premise to on-premise or cloud to on-premise. Use-case I had to migrate my PostgreSQL running on an EC2 server to RDS...
Recently, we came across a scenario where we need to create AMIs of multiple production servers running in four different AWS accounts. One solution was to create an automation script to be run on an AWS EC2 instance running in each aws account which would create AMI of all production servers running in each account. This would have...
It has been a long time while I was working over the project where we required accessing Rabbit MQ dashboard. I know accessing the Rabbit MQ is not the difficult task but my scenario was bit complex. Scenario: I was supposed to access Rabbit MQ dashboard from AWS Linux machine which is placed in the private subnet of VPC (AWS) with no...
Hi, many of us must have landed into a situation which I faced recently, the issue was with one of the new features deployed to PRODUCTION environment in the latest release not working as expected, but I was unable to reproduce this on Local or QA environments. So to debug it quickly, I tried something which ultimately proves really...
Hello folks, If you are here on this blog, you might be searching for the ways to migrate your existing PHP website to Node.js. In this blog i will try to explain, how you can point your existing domain to nodejs hosting and keep using the cpanel hosting for managing emails for your domain. To start with, you will have to make...
"Linux containers, Its an operating system based virtualization method, you can run your multiple isolated instances on a single host. It is similar to chroot(File system isolation) but it offers a lot. You can zip an LXC container and move it to any other host with the same processor architecture. LXC is the part of mainline Kernel it...
While working on my current application, I had to import a large database using mysql from a sql dump. The size of the sql dump was around 1.5 GB and hence the import was taking long time. I just felt the need of some tool that could help me check the progress of the import. The command I used was: [sql] mysql --user=username...
What it is ? Capistrano is an open source tool for running scripts on multiple servers; its main use is deploying web applications. It automates the process of making a new version of an application available on one or more web servers, including supporting tasks such as changing databases. It's written in Ruby, but it can easily be...
I got a requirement from one of my clients to setup a staging server that has a HTTP authentication, behind an ELB. but because of authentication it fails in the ELB health check. I did the following steps to configure it with HTTP authentication. Create a single PHP or HTML file and disable HTTP authentication for this file. In the...
Vim is an extremely practicable text editor which allows efficient text editing. It is considered as one of the most handy tools for programmers, allowing them to edit configure files and sometimes also considered as IDE. Though, it not just limited to editing configuring files, it also allows a user to edit text files and write emails...
Java development is often challenging, especially when you need to parse JSON from the command line. In my recent Java development project I had parse JSON from the command line and I explored available options one-by-one to find a close fit solution which can be implemented quickly. Requirements To parse json from the...
