openapi 2.0 spec generator for GCP

#!/bin/bash

# Set the project and regions variables
PROJECT_ID="myproject"
REGIONS=("us-central1" "us-east1")

# Get a list of all Cloud Functions in the project
ALL_FUNCTIONS=$(gcloud functions list --project $PROJECT_ID --format='value(name, region)')

# Loop through each region
for REGION in "${REGIONS[@]}"; do
  # Filter the functions based on the current region
  FUNCTIONS=$(echo "$ALL_FUNCTIONS" | awk -v region="$REGION" '$2 == region { print $1 }')

  # Create an API Gateway for each Cloud Function in the current region
  for FUNCTION_NAME in $FUNCTIONS; do
    # Create the API config
    echo "swagger: '2.0'
info:
  title: Cloud Function API
  version: 1.0.0
paths:
  /$FUNCTION_NAME:
    post:
      summary: Invoke $FUNCTION_NAME Cloud Function
      operationId: invoke$FUNCTION_NAME
      x-google-backend:
        address: https://$REGION-$PROJECT_ID.cloudfunctions.net/$FUNCTION_NAME
      responses:
        '200':
          description: Successful response
" > $FUNCTION_NAME.yaml

    gcloud api-gateway api-configs create $FUNCTION_NAME-config \
      --api=cloudfunctions.googleapis.com \
      --openapi-spec=$FUNCTION_NAME.yaml \
      --project=$PROJECT_ID

    # Create the API Gateway
    gcloud api-gateway gateways create $FUNCTION_NAME-gateway \
      --api=cloudfunctions.googleapis.com \
      --api-config=$FUNCTION_NAME-config \
      --location=$REGION \
      --project=$PROJECT_ID
  done
done