Prerequisites
Before you start, make sure you have the following: - A Cloud Foundry account - Cloud Foundry Command Line Interface (CLI) installed - Python installed on your local machine - Node.js and npm installed for building your MTA archive.
Step 1: Set Up Your Project Directory
Create a new directory for your project.
mkdir python-cf-mta-project cd python-cf-mta-project
Step 2: Initialize a new Python project
python -m venv venv
source venv/bin/activate # On Windows, use `venv\Scripts\activate`
pip install Flask
Step 3: Create a simple Python application
Create a file named `app.py` with the following content:
from flask import Flask
import os
from cfenv import AppEnv
app = Flask(__name__)
cf_port = os.getenv("PORT")
env = AppEnv()
@app.route('/')
def home():
return "Hello, Cloud Foundry!"
if cf_port is None:
app.run(host='0.0.0.0', port=8000, debug=False)
else:
app.run(host='0.0.0.0', port=int(cf_port), debug=False)This starts a web server at port 8080.
Step 4: Create the requirement.txt file
flask
cfenv==0.5.3
Step 5: Create the mta.yaml file as below
ID: python-cf-mta
_schema-version: 3.3.0
version: 1.1.0
description: "Python web service with MTA"
modules:
- name: python-web-cf-mta
type: python
path: ./
provides:
- name: srv-api
properties: srv-url: ${default-url}
parameters:
memory: 1024M
disk-quota: 1024M
buildpacks: - python_buildpack
commands: - python app.py
Step 6: Setup MTA Archive build tool
npm install -g mbt
Step 7: Build your MTA archive
mbt build
This command will generate a file named `python-cf-mta-project_0.0.1.mtar` in your project directory.
Step 8: Deploy to Cloud Foundry
Log in to your Cloud Foundry account.
cf login -a your_cf_api_url -u your_username -p your_password
Deploy your MTA archive.
cf deploy python-cf-mta-project_0.0.1.mtar
Step 9: Verify the deployment
Check the status of your application.cf appsVisit the URL provided by Cloud Foundry to ensure your application is running.
Finish, you have created a python cloud foundry project with MTA.yaml instead of using manifest.yml.
In this blog, we have walked through the process of creating a Python Cloud Foundry project with an `mta.yaml` file containing the build instructions. This process includes setting up your project directory, creating the necessary `mta.yaml` files, building the MTA archive, and deploying it to Cloud Foundry.
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