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https://github.com/shohail-dev/2-tier-flask-application
This is a simple Flask app that interacts with a MySQL database. The app allows users to submit messages, which are then stored in the database and displayed on the frontend.
https://github.com/shohail-dev/2-tier-flask-application
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Last synced: 3 days ago
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This is a simple Flask app that interacts with a MySQL database. The app allows users to submit messages, which are then stored in the database and displayed on the frontend.
- Host: GitHub
- URL: https://github.com/shohail-dev/2-tier-flask-application
- Owner: shohail-DeV
- Created: 2024-08-02T20:59:56.000Z (about 2 months ago)
- Default Branch: main
- Last Pushed: 2024-08-02T21:03:00.000Z (about 2 months ago)
- Last Synced: 2024-09-25T06:02:16.907Z (3 days ago)
- Topics: aws-ec2, docker, jenkins, k8s-cluster, k8s-deployment, kubeadm
- Language: HTML
- Homepage:
- Size: 9.77 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# Flask App with MySQL Docker Setup
This is a simple Flask app that interacts with a MySQL database. The app allows users to submit messages, which are then stored in the database and displayed on the frontend.
## Prerequisites
Before you begin, make sure you have the following installed:
- Docker
- Git (optional, for cloning the repository)
## Setup
1. Clone this repository (if you haven't already):
```bash
git clone https://github.com/your-username/your-repo-name.git
```
2. Navigate to the project directory:
```bash
cd your-repo-name
```
3. Create a `.env` file in the project directory to store your MySQL environment variables:
```bash
touch .env
```
4. Open the `.env` file and add your MySQL configuration:
```
MYSQL_HOST=mysql
MYSQL_USER=your_username
MYSQL_PASSWORD=your_password
MYSQL_DB=your_database
```
## Usage
1. Start the containers using Docker Compose:
```bash
docker-compose up --build
```
2. Access the Flask app in your web browser:
- Frontend: http://localhost
- Backend: http://localhost:5000
3. Create the `messages` table in your MySQL database:
- Use a MySQL client or tool (e.g., phpMyAdmin) to execute the following SQL commands:
```sql
CREATE TABLE messages (
id INT AUTO_INCREMENT PRIMARY KEY,
message TEXT
);
```
4. Interact with the app:
- Visit http://localhost to see the frontend. You can submit new messages using the form.
- Visit http://localhost:5000/insert_sql to insert a message directly into the `messages` table via an SQL query.
## Cleaning Up
To stop and remove the Docker containers, press `Ctrl+C` in the terminal where the containers are running, or use the following command:
```bash
docker-compose down
```
## To run this two-tier application using without docker-compose
- First create a docker image from Dockerfile
```bash
docker build -t flaskapp .
```
- Now, make sure that you have created a network using following command
```bash
docker network create twotier
```
- Attach both the containers in the same network, so that they can communicate with each other
i) MySQL container
```bash
docker run -d \
--name mysql \
-v mysql-data:/var/lib/mysql \
--network=twotier \
-e MYSQL_DATABASE=mydb \
-e MYSQL_ROOT_PASSWORD=admin \
-p 3306:3306 \
mysql:5.7
```
ii) Backend container
```bash
docker run -d \
--name flaskapp \
--network=twotier \
-e MYSQL_HOST=mysql \
-e MYSQL_USER=root \
-e MYSQL_PASSWORD=admin \
-e MYSQL_DB=mydb \
-p 5000:5000 \
flaskapp:latest