Author: Neelam Lakra

OpsInit: Packer On AWS

What is Packer? Packer is an open source tool for creating identical machine images for multiple platforms from a single source configuration. Packer is lightweight, runs on every major operating system, and is highly performant, creating machine images for multiple platforms in parallel. Packer does not replace configuration management like chef or Puppet. In fact, when building images, Packer is able to use tools like Continue Reading

OpsInit: Configuring Crontab With Ansible

Introduction to crontab: The crontab is a list of commands that you want to run on a regular schedule. Crontab stands for “cron table”, because it uses the job scheduler cron to execute tasks; cron itself is named after “chronos, ” the Greek word for time.cron is the system process which will automatically perform tasks for you according to a set schedule. The schedule is Continue Reading

Packaging & Hosting python repo to S3

This blog walks through the packaging of simple python project. Lets add the necessary files and structure to create the package, then build the package and upload it to python package index ( PyPI ). Let suppose your project (sample_pkg) is created in the root directory. Mandatory Basic Directory Structure of your sample project should be: /sample_pkg /sample_pkg __init__.py project util and source code files Continue Reading

Safe Navigation Operator

Usage of “?.” in Angular

In some code snippets, you may have seen that Angular expressions have a question mark after them. Angular refers to it as ‘Safe Navigation Operator’.It makes sure that we are not seeing null and undefined values in our application when we want to access properties of an object. “Safe Navigation Operator” can be used to prevent Angular from throwing errors, when trying to access object Continue Reading

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