Hey guys, long time no post 😭 So, today I wanna share another method 👇

How to host your python flask web application (templates, static, app.py) in your Ubuntu Server gracefully and connect your domain or sub-domain? 🔫

First of all install these below commands :

sudo apt update
sudo apt install nginx certbot python3-certbot-nginx

Then, host your python web application on ubuntu using screen or gunicorn.

(Gunicorn will be extremely best choice for production application. As for test, you can use screen)

pip install gunicorn
gunicorn --workers 3 app:app

Then, create a configuration file of your application with your domain by below command:

sudo nano /etc/nginx/sites-available/application_name

Here, "application_name" can be either your domain name or any preferred name 😘

And, paste the below code on that configuration file 👇

server {
    listen 80;
    server_name your_domain;

    location / {
        proxy_pass http://your_vps_ip:port_of_your_web_application;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
    }
}

Then, enable the website in ubuntu vps by this command 👇

sudo ln -s /etc/nginx/sites-available/application_name /etc/nginx/sites-enabled/

Here also, "application_name" must be as you set before 💥

And finally, run these commands to check nginx scripts and restart nginx server :

sudo nginx -t
sudo systemctl restart nginx

Boom 🔫 Your server is hosted. And you can get ssl certificate using certbot for free lifetime.

Do you need that tutorial too? 😴

🏠 Hey, guys! Let's host our project in our Heroku using Dockerfile containing our project 👋

( ⚠️ Ubuntu Only )

💎 Installed Prequisites:
- Heroku CLI (Required)
- Docker (Required)
- Git (Optional)

🛡 Steps:

1. Install Heroku CLI, Docker first. Optional (git):

sudo apt update -y && sudo apt install git curl -y && sudo apt install docker.io -y && sudo curl https://cli-assets.heroku.com/install-ubuntu.sh | sh

2. Open your project in terminal ( Optional: Git clone your github public repository and open ):

cd myProject

(⚠️ Since we are using docker to deploy our project in heroku, Make sure you have requirements.txt, Dockerfile & heroku.yml in your project. If you don't have these, make one using)

requirements.txt:

requests
bs4

heroku.yml:

build:
  docker:
    worker: Dockerfile

Dockerfile:

FROM python:3.11.11-slim

WORKDIR /usr/src/app
RUN chmod 777 /usr/src/app

COPY requirements.txt .
RUN pip3 install --break-system-packages --ignore-installed --no-cache-dir -r requirements.txt

COPY . .
CMD ["your", "command"]

3. Now, Important step is to log-in your heroku account in the Heroku CLI:

First of all, open your any of browser, login on heroku.com dashboard, then open this link and create a new authorization (description is actually lebel to recognize the token later)

Then, come back to our terminal and command:

heroku login -i

⚠️ This will prompt heroku email and password (auth token you just generated)

👇 Next steps below

👋 So, our next step is:

4. Create an Application manually in your Heroku Dashboard and copy Application Name. (Important ⚠️)

5. Since, you are on your project inside terminal, build your Docker Image in your server manually:

docker build -t heroku/app-name-worker .

( ⚠ Here app-name, instead of this, use your actual application name of heroku )

6. Now push your built container in your heroku application:

heroku container:push worker --app app-name

7. Login to heroku container:

heroku container:login

8. Release the docker container:

heroku container:release worker --app app-name

9. Start PS Dyno Scales:

heroku ps:scale worker=1 --app app-name

💥 Your project hosted in heroku inside the docker image ❤️

Check logs, using:

heroku logs --tail --app app-name

Install Local MongoDB Server in Your Ubuntu/Debian VPS

1️⃣ First Import MongoDB Public GPG Key in your VPS:

curl -fsSL https://pgp.mongodb.com/server-7.0.asc | sudo gpg -o /usr/share/keyrings/mongodb-server-7.0.gpg --dearmor

2️⃣ Then Create MongoDB Source List File includes the URL of MongoDB:

echo "deb [ arch=amd64,arm64 signed-by=/usr/share/keyrings/mongodb-server-7.0.gpg ] https://repo.mongodb.org/apt/ubuntu jammy/mongodb-org/7.0 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-7.0.list

3️⃣ Then install mongodb using below steps:

sudo apt update
sudo apt install -y mongodb-org

sudo systemctl start mongod  
sudo systemctl enable mongod

😀 Finally check MongoDB Status if it is Active/Running/Successful Icon appearing:

sudo systemctl status mongod

If any successful message is appearing, it means you have successfully installed Latest MongoDB 7.0 on your Ubuntu/Debian VPS.