Deploying a Flask Web App on AWS EC2 Instance

By -
Deploying a Flask Web App on AWS EC2 Instance

How to Deploy a Flask Web App on AWS EC2 Instance

Deploying a Flask web app on an AWS EC2 instance allows you to host and run your application in the cloud. Here's a step-by-step guide to help you through the process:

Step 1: Launch an EC2 Instance

First, log in to the AWS Management Console and navigate to the EC2 service. Launch a new EC2 instance and select an appropriate Amazon Machine Image (AMI) for your Flask application. Consider factors such as the operating system, Python version, and instance type based on your application's requirements.

Step 2: Configure Security Groups

Configure security groups for your EC2 instance to allow incoming traffic on the desired ports (e.g., port 80 for HTTP). Ensure that your security group settings align with your application's requirements. You may also want to set up security rules to limit access to specific IP addresses or ranges.

Step 3: Connect to the EC2 Instance

Connect to your EC2 instance using SSH. You can use an SSH client like PuTTY (Windows) or the terminal (Mac/Linux). Retrieve the public IP address or DNS name of your EC2 instance from the AWS Management Console, and use that information to establish the SSH connection.

Step 4: Update System Packages

Update the system packages on your EC2 instance by running the following commands:

sudo apt-get update
sudo apt-get upgrade

Step 5: Install Required Dependencies

Install the necessary dependencies to run your Flask application. This typically includes Python and pip. Use the following commands:

sudo apt-get install python3
sudo apt-get install python3-pip

Step 6: Clone Your Flask App Repository

Clone your Flask web app repository onto the EC2 instance using Git. Make sure you have Git installed on the instance. Use the following command:

git clone

Step 7: Install Python Packages

Navigate to your Flask app directory and install the required Python packages using the project's requirements.txt file. Run the following command:

pip3 install -r requirements.txt

Step 8: Run the Flask App

Start your Flask application by running the following command:

python3 app.py

Make sure your Flask app runs successfully and listens on the desired port (usually port 5000) without any errors.

Step 9: Configure Nginx as a Reverse Proxy

Install and configure Nginx as a reverse proxy to handle incoming HTTP requests and forward them to your Flask app. Create an Nginx server block configuration file with the necessary settings. The configuration typically includes specifying the server name, listening port, and proxy_pass directive to forward requests to your Flask app running on localhost.

Step 10: Start Nginx

Start Nginx to enable the reverse proxy configuration. Use the following command:

sudo service nginx start

Verify that Nginx is running without any errors. You can also check the Nginx access and error logs for troubleshooting purposes.

Step 11: Test Your Web App

Access your Flask web app by entering the public IP address or domain name of your EC2 instance in a web browser. Ensure that everything is working as expected. You should see your Flask app rendered in the browser and be able to interact with it.

Step 12: Set Up a Domain Name (Optional)

If you want to use a custom domain name for your Flask app, you'll need to configure it with a DNS provider. Set up a DNS record to point your domain to the public IP address of your EC2 instance. This allows users to access your app using a user-friendly domain name.

Step 13: Secure Your Web App (Optional)

Implement SSL/TLS encryption to secure your Flask app. Obtain an SSL certificate from a trusted certificate authority (CA) and configure Nginx to enable HTTPS connections. This ensures that communications between the users and your app are encrypted and secure.

Step 14: Monitor and Scale Your App (Optional)

Implement monitoring and scaling solutions to ensure the availability and performance of your Flask app. Utilize AWS services like CloudWatch and Auto Scaling to monitor resource utilization, handle increased traffic, and optimize resource allocation. Monitor key metrics and set up alarms to proactively address any issues that may arise.

That's it! You have successfully deployed your Flask web app on an AWS EC2 instance. Remember to regularly update your application, monitor its performance, and apply security best practices. By following these steps, you can create a robust and scalable deployment environment for your Flask app in the cloud.

Happy deploying!

Comments

Post a Comment

Popular posts from this blog

C program that contains a string XOR each character in this string with 0 ,127

By -
Write a C program that contains a string (char pointer) with a value \Hello World’. The program should XOR each character in this string with 0 and displays the result. Program: #include<stdlib.h> main() { char str[]="Hello World"; char str1[11]; int i,len; len=strlen(str); for(i=0;i<len;i++) { str1[i]=str[i]^0; printf("%c",str1[i]); } printf("\n"); } Q.2 Write a C program that contains a string (char pointer) with a value \Hello World’. The program should AND or and XOR each character in this string with 127 and display the result. PROGRAM: #include <stdio.h> #include<stdlib.h> void main() { char str[]="Hello World"; char str1[11]; char str2[11]=str[]; int i,len; len = strlen(str); for(i=0;i<len;i++) { str1[i] = str[i]&127; printf("%c",str1[i]); } printf("\n"); for(i=0;i<len;i++) { str3[i] = str2[i]^127; printf("%c",str3[i]); } pri
Read more

Queue in Data Structure(DS)

By -
Image
Queue Queues are data structures that follow the First In First Out (FIFO) i.e. the first element that is added to the queue is the first one to be removed. Elements are always added to the back(rear) and removed from the front. Think of it as  a line of people waiting for a bus. The person who is at the beginning of the line is the first one to enter the bus.   Basic features of Queue Like a stack, the queue is also an ordered list of elements of similar data types. A queue is a FIFO( First in First Out ) structure. Once a new element is inserted into the Queue, all the elements inserted before the new element in the queue  must be removed, to remove the new element. In a simple queue, there is a disadvantage after deleting element we cannot insert the element in the queue because of insertion  is possible from the rear but deletion is performed from the front.                                           insertion                                     ------------------
Read more

Implementation of stack Using Array

By -
Implementation  of stack Using Array #include<stdio.h> void pop(); void push(); void display(); int i,n,ch=0,top,item,stack[50]; int main() {     printf("Enter the number of element in Stack:\t");     scanf("%d",&n);     top=-1;     printf("Stack Operations");     printf("\n1.Push\n2.Pop\n3.Display\n4.Exit\n");    do     {         printf("Enter the choice: ");         scanf("%d",&ch);         switch(ch)         {             case 1:push();                    break;             case 2:pop();                    break;             case 3:display();                    break;             case 4:exit(0);                    break;             default:printf("!!Wrong choice!!\n");         }     }     while(ch!=4);     return 0; } void push(int item) {     if(top==n-1)         printf("Overflow\n");     else     {        
Read more