deploy.sh

#!/bin/bash

# Variables
PREFIX='local'
SUFFIX='test'
LOCATION='westeurope'
MANAGED_IDENTITY_TYPE='UserAssigned' # SystemAssigned or UserAssigned
CURRENT_DIR="$(cd "$(dirname "$0")" && pwd)"
ZIPFILE="function_app.zip"

# Change the current directory to the script's directory
cd "$CURRENT_DIR" || exit

echo "Initializing Terraform..."
terraform init -upgrade

# Run terraform plan and check for errors
echo "Planning Terraform deployment..."
terraform plan -out=tfplan \
	-var "prefix=$PREFIX" \
	-var "suffix=$SUFFIX" \
	-var "location=$LOCATION" \
	-var "managed_identity_type=$MANAGED_IDENTITY_TYPE"

if [[ $? != 0 ]]; then
	echo "Terraform plan failed. Exiting."
	exit 1
fi

# Apply the Terraform configuration
echo "Applying Terraform configuration..."
terraform apply -auto-approve tfplan

if [[ $? != 0 ]]; then
	echo "Terraform apply failed. Exiting."
	exit 1
fi

# Get the output values
RESOURCE_GROUP_NAME=$(terraform output -raw resource_group_name)
FUNCTION_APP_NAME=$(terraform output -raw function_app_name)

if [[ -z "$RESOURCE_GROUP_NAME" || -z "$FUNCTION_APP_NAME" ]]; then
	echo "Resource Group Name or Function App Name is empty. Exiting."
	exit 1
fi

# Print the variables
echo "Resource Group: $RESOURCE_GROUP_NAME"
echo "Function App: $FUNCTION_APP_NAME"

# CD into the function app directory
cd ../src || exit

# Remove any existing zip package of the function app
if [ -f "$ZIPFILE" ]; then
	rm "$ZIPFILE"
fi

# Create the zip package of the function app
echo "Creating zip package of the function app..."
zip -r "$ZIPFILE" function_app.py host.json requirements.txt

# Deploy the function app
echo "Deploying function app [$FUNCTION_APP_NAME] with zip file [$ZIPFILE]..."
az functionapp deploy \
	--resource-group "$RESOURCE_GROUP_NAME" \
	--name "$FUNCTION_APP_NAME" \
	--src-path "$ZIPFILE" \
	--type zip \
	--async true 1>/dev/null

if [ $? -eq 0 ]; then
	echo "Function app [$FUNCTION_APP_NAME] deployed successfully."
else
	echo "Failed to deploy function app [$FUNCTION_APP_NAME]."
	exit 1
fi

# Remove the zip package of the function app
if [ -f "$ZIPFILE" ]; then
	rm "$ZIPFILE"
fi