infra/: Terraform infra

1. Instructions in the readme

Author: maniankara

README.md

@@ -25,6 +25,48 @@ docker logs fsmgmt
 ```
 
 ## Deploy it to the production
+The infrastructure is implemented with terraform and all the configs and scripts exists under `infra/` directory
+
+### Prerequisites:
+1. `terraform` installed and available on the path
+2. `az` cli installed and ready to be logged in
+
+### Setup the environment
+1. Setup python `fsmgmt` venv environment
+```
+python -m venv fsmgmt
+source fsmgmt/bin/activate
+```
+2. Setup subscription and credentials
+a. Change directory to the correct directory
+```
+cd infra/
+```
+b. Store `.env.template` to `.env` and values to it.
+```
+cp .env.template .env
+# Edit .env and fill-in values
+```
+c. Source those values with `source` command
+```
+source .env
+```
+d. Login to your Azure subscription with az cli to provide access to terraform
+```
+az login
+```
+
+### Perform the infra creation
+
+1. Terraform initialize
+```
+terraform init
+```
+2. Terraform apply
+```
+terraform apply
+```
+
 
 
 ## Plan

infra/.env.template

@@ -0,0 +1,7 @@
+# Bash shell users uncomment and use this:
+# export ARM_SUBSCRIPTION_ID=<PLACE VALUE HERE>
+# export ARM_TENANT_ID=<PLACE VALUE HERE>
+
+# Fish shell users uncomment and use this:
+# set -gx ARM_SUBSCRIPTION_ID <PLACE VALUE HERE>
+# set -gx ARM_TENANT_ID <PLACE VALUE HERE>

infra/main.tf

@@ -0,0 +1,39 @@
+# Fetch the existing resource group
+data "azurerm_resource_group" "fsmgmt" {
+  name = var.rg_name
+}
+
+# Container registry to store the images, public for now
+resource "azurerm_container_registry" "fsmgmt" {
+  name                = var.app_name
+  resource_group_name = data.azurerm_resource_group.fsmgmt.name
+  location            = data.azurerm_resource_group.fsmgmt.location
+  sku                 = "Standard"
+  admin_enabled       = true
+}
+
+# Service plan for the app service
+resource "azurerm_service_plan" "fsmgmt" {
+  name                = var.app_name
+  resource_group_name = data.azurerm_resource_group.fsmgmt.name
+  location            = data.azurerm_resource_group.fsmgmt.location
+  os_type             = "Linux"
+  sku_name            = "P1v2"
+}
+
+# The app itself, pulling image from ACR
+resource "azurerm_linux_web_app" "fsmgmt" {
+  name                = var.app_name
+  resource_group_name = data.azurerm_resource_group.fsmgmt.name
+  location            = azurerm_service_plan.fsmgmt.location
+  service_plan_id     = azurerm_service_plan.fsmgmt.id
+
+  site_config {
+    application_stack {
+      docker_image_name = var.app_name
+      docker_registry_url = "https://${azurerm_container_registry.fsmgmt.login_server}"
+      docker_registry_username = azurerm_container_registry.fsmgmt.admin_username
+      docker_registry_password = azurerm_container_registry.fsmgmt.admin_password
+    }
+  }
+}

infra/provider.tf

@@ -0,0 +1,14 @@
+terraform {
+  required_providers {
+    azurerm = {
+      source = "hashicorp/azurerm"
+      version = "4.14.0"
+    }
+  }
+}
+
+provider "azurerm" {
+  features {
+    
+  }
+}

infra/variables.tf

@@ -0,0 +1,11 @@
+# Default values for variables
+
+variable "app_name" {
+  default = "fsmgmt"
+  type = string
+}
+
+variable "rg_name" {
+  default = "fsmgmt-tmp"
+  type = string
+}