Manifest File A manifest file contains metadata for a group of accompanying files which are part of coherent unit. For example, the files of a computer program may have a manifest describing the name, version number, license and the constituent files of the program. Manifests provide consistency and reproducibility, and can help you automate deploying apps. The manifest file can…

JenkinsFile In this tutorial I am going to show you how to read YAML/YML config file in JenkinsFile. The JenkinsFIle is used for Jenkins pipeline which is used to perform many steps such as, building, testing, deploying a job through Jenkins. The yaml/yml config file can be a PCF manifest file or any other config file and you need to…

Infrastructure as Code or IaC, as the name indicates, mainly relies on on perceiving infrastructure in the same way as any code which is why it is commonly referred to as programmable infrastructure. It simply provides means to define and manage the IT infrastructure by using configuration files. The IaC concept came into prominence because of the limitations associated with…

Introduction Are you getting logon denied error while starting or deploying your Spring Boot application into Pivotal Cloud Foundry (PCF) cloud environment? Generally, logon denied error occurs while your application is trying to connect to database server. The error you get in your application log is similar to the following error: From the above error message it is clear that…

In this tutorial I am going to show you an example on deploying Spring Boot application to Heroku cloud. I will create a basic CRUD application with Spring Boot Data JPA and PostgreSQL/MySQL technologies. I will first show you how to perform CRUD operations locally, then deploy the same application in the Heroku cloud with some modifications. CRUD is an…

Here in this example I am going to show you how to allow users for OAuth2 SSO (Single Sign On) using AWS (Amazon Web Services) Cognito. I had explained how to do OAuth2 Single Sign On using Spring Boot and GitHub account. Here I am going to use AWS Cognito. You can use any other providers, such as, Google, Facebook,…

Introduction In this example I will show you thorough example on how to deploy Python Flask MySQL based application in Heroku Cloud. I will use free account to use the cloud services from Heroku. I will show you how to import existing MySQL database into Heroku. I will also tell how to turn on/off the app in maintenance mode. I…

Cloudflare This tutorial will explain you how to configure Cloudflare for DNS, Email – MX, Webuzo control panel hosted on VPS server. If you are using shared hosting then it is very easy to setup Cloudflare because you can configure Cloudflare through cpanel. Then Cloudflare pulls the required information from your cpanel. But when you want to configure VPS hosting…