IE Bank infrastructure

• IE Bank infrastructure
  • Overview
  • Requirements
  • Recommended tutorials
  • Configure your local environment
    • Install Prerequisites
  • Repository organization
    • Main.bicep
    • Module app-service.bicep
  • Configuration variables
  • Continuos Delivery
    • GitHub secrets
    • GitHub variables

Overview

This is the repository for the infrastructure code of the IE Bank web app

Requirements

This source code works under the following technologies:

• Azure CLI 2.51.0

Recommended tutorials

• Azure CLI
• Azure Bicep
• Bicep CLI
• Learn modules for Bicep
• Quickstart: Create Bicep files with Visual Studio Code
• Deploy Azure resources by using Bicep and GitHub Actions
• Quickstart: Use a Bicep file to create an Azure Database for PostgreSQL - Flexible Server

Configure your local environment

Install Prerequisites

• Install Azure CLI. Install Azure CLI from here. Make sure to select the option to add Azure CLI to your PATH while installing.
• Install Visual Studio Code and Bicep extension. Install Visual Studio Code from here. Install the Bicep extension from here. You can also follow the steps from the article Install Bicep tools

Repository organization

Main.bicep

The script that will deploy the infrastructure for IE Bank app is main.bicep.

The script deploys:

Resource	Azure Documentation	Bicep resource definition	Description
PostgreSQL server	Azure Database for PostgreSQL - Flexible Server	Microsoft.DBforPostgreSQL flexibleServers 2022-12-01	PostgreSQL server for the IE Bank app
PostgreSQL database	Azure Database for PostgreSQL - Flexible Server	Microsoft.DBforPostgreSQL flexibleServers/databases 2022-12-01	PostgreSQL database for the IE Bank app
module modules/app-service	See Module app-service.bicep	-	Bicep module that deploys the web app services for the IE Bank app

Module app-service.bicep

The main.bicep script uses the module modules/app-service.bicep to deploy the web app services for the IE Bank app.

The module deploys:

Resource	Azure Documentation	Bicep resource definition	Description
App Service Plan	Azure App Service plan overview	Microsoft.Web/serverfarms 2021-02-01	App Service Plan for the IE Bank app
Linux App Service	Azure App Service overview	Microsoft.Web/sites 2021-02-01	Linux App Service to host the IE Bank app backend
Linux App Service	Azure App Service overview	Microsoft.Web/sites 2021-02-01	Linux App Service to host the IE Bank app frontend

Configuration variables

To determine different configuration options for each environment, we will make use of the files under the parameters folder.

• File parameters/dev.parameters.json contains the configuration for the development environment.

Continuos Delivery

Learn more:

• Deploy Azure resources by using Bicep and GitHub Actions

The file .github/workflows/ie-banc-infra.yml contains the configuration for the CI/CD pipeline.

GitHub secrets

The workflow uses the following GitHub secrets:

Secret name	Description	Learn more
AZURE_CREDENTIALS	Azure credentials to authenticate to Azure via Service Principal	Use the Azure login action with a service principal secret
DBPASS	Password for the PostgreSQL server, configured as App Setting in the backend web server	Environment variables and app settings in Azure App Service
DBUSER	Username for the PostgreSQL server, configured as App Setting in the backend web server	Environment variables and app settings in Azure App Service

GitHub variables

The workflow uses the following GitHub variables:

Variable name	Description	Learn more
DBHOST	Hostname for the PostgreSQL server, configured as App Setting in the backend web server	Environment variables and app settings in Azure App Service
DBNAME	Name for the PostgreSQL database, configured as App Setting in the backend web server	Environment variables and app settings in Azure App Service
ENV	Environment name, configured as App Setting in the backend web server	Environment variables and app settings in Azure App Service
FLASK_APP	Name of the flask app to run, configured as App Setting in the backend web server	Environment variables and app settings in Azure App Service
FLASK_DEBUG	Debug option for the flask app, configured as App Setting in the backend web server	Environment variables and app settings in Azure App Service

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