Sunday, December 1, 2019
Monday, July 22, 2019
Half Century with Github Repository.
Today I created my 50th repository named as ArtSeptor.
Working on project structure so that everything will be organized. Maybe in 2-3 days, I'll push the codebase.
Working on project structure so that everything will be organized. Maybe in 2-3 days, I'll push the codebase.
Sunday, July 21, 2019
Working on community driven Online E-Commerce Portal!
Why community-driven?
I feel community-driven business is really good to start with where you don't have to worry about building an in-house team of experts. It is like outsourcing someone to do the work and give them loyalty. Building a kind of online artist community, sell their arts and give them loyalty.
What is the name?
ArtSeptor: A community for artist
The name came after Loki's Septor. Technology Stack
Python/Django and there is a really very good eCommerce package written in Python/Django called Django-Shuup! It's quite active in terms of development and I've already tested the feature and I feel it's easy to set up and ready to use.
Launch Date and Hiring Developer
Open to talk to contributors and YES, we are about to launch the portal in October 2019.Contributors can only join if the idea excites you!
Generate wildcard certificate with Let's Encrypt/Certbot and install on GoDaddy, cPanel.
Why there is a need for an SSL certificate?
SSL is the backbone of our secure Internet and it protects your sensitive information as it travels across the world's computer networks. The primary reason why SSL is used is to keep sensitive information sent across the Internet encrypted so that only the intended recipient can access it.If you don't have SSL then google-chrome or any browser will flag your website as Not-Secure which means, if you do any kind of transaction then there is a high chance that your data will be compromised.
In this blog, I'm going to generate one wild-card certificate for my blog site, ashishtiwari.me. A WildCard certificate can be used with subdomain as well, for example -
blog.ashishtiwari.me, contact.ashishtiwari.me, tech.ashishtiwari.me
1. Set up your machine to generate the SSL certificate [ Ubuntu ].
apt-get update
apt-get install git-core2. Install Let's Encrypt/Certbot
apt-get install letsencrypt3. Generate SSL certificate using Certbot
Now with the help of Certbot, we will generate wildcard certificate for our test domain ashishtiwari.me
certbot-auto certonly --manual --preferred-challenges=dns --email writetoashishtiwari@gmail.com
--server https://acme-v02.api.letsencrypt.org/directory --agree-tos -d *.ashishtiwari.me4. Setup DNS TXT record to authenticate Ownership.
For wildcard certificates, the only challenge method Let’s Encrypt accepts is the DNS challenge, which we can invoke via the preferred-challenges=dns flag.
After executing the above command, the Certbot will share a text record to add to your DNS TXT field.
Please deploy a DNS TXT record under the name
_acme-challenge.ashishtiwari.me with the following value:
iroa8XXXhpTah-h4Az4UZuuXslHCdkxIuDiL2XXXv2Y
Create TXT record via DNS console and setup key and value
TXT Record Name : _acme-challenge
TXT Record Value : iroa8XXXhpTah-h4Az4UZuuXslHCdkxIuDiL2XXXv2Y4. Finally, Generate the Certificate.
Once you authenticate the domain ownership; by setting up DNS TXT record, Certbot generates the ssl certificate and required keys [ PEM/CERTIFICATE ].
5. Complete Logs.
IMPORTANT NOTES:
- Congratulations! Your certificate and chain have been saved at:
/etc/letsencrypt/live/ashishtiwari.me/fullchain.pem
Your key file has been saved at:
/etc/letsencrypt/live/ashishtiwari.me/privkey.pem
Your cert will expire on 2019-10-14. To obtain a new or tweaked
version of this certificate in the future, simply run certbot
again. To non-interactively renew *all* of your certificates, run
"certbot renew"
- If you like Certbot, please consider supporting our work by:
Donating to ISRG / Let's Encrypt: https://letsencrypt.org/donate
Donating to EFF: https://eff.org/donate-le
5. Complete Logs.
Plugins selected: Authenticator manual, Installer None
Obtaining a new certificate
Performing the following challenges:
dns-01 challenge for ashishtiwari.me
dns-01 challenge for ashishtiwari.me
-------------------------------------------------------------------------------
Please deploy a DNS TXT record under the name
_acme-challenge.ashishtiwari.me with the following value:
iroa8XXXhpTah-h4Az4UZuuXslHCdkxIuDiL2XXXv2Y
Before continuing, verify the record is deployed.
-------------------------------------------------------------------------------
Press Enter to Continue
-------------------------------------------------------------------------------
Please deploy a DNS TXT record under the name
_acme-challenge.ashishtiwari.me with the following value:
V781k3nW6GaSdpyfbTYJBJpt1IJYBehMQa1je2gFg3Q
Before continuing, verify the record is deployed.
-------------------------------------------------------------------------------
Press Enter to Continue
Waiting for verification...
Cleaning up challenges
IMPORTANT NOTES:
- Congratulations! Your certificate and chain have been saved at:
/etc/letsencrypt/live/ashishtiwari.me/fullchain.pem
Your key file has been saved at:
/etc/letsencrypt/live/ashishtiwari.me/privkey.pem
Your cert will expire on 2019-10-14. To obtain a new or tweaked
version of this certificate in the future, simply run certbot
again. To non-interactively renew *all* of your certificates, run
"certbot renew"
- If you like Certbot, please consider supporting our work by:
Donating to ISRG / Let's Encrypt: https://letsencrypt.org/donate
Donating to EFF: https://eff.org/donate-le
6. Install SSL on cPanel.
Wednesday, April 17, 2019
Flask Minimal Setup and Hello World with NGROK
Setup VirtualEnv, Flask Installation and Project Directory
pip3 install virtualenvvirtualenv -p /usr/bin/python3 flask-samplesource flask-sample/bin/activatepip install flaskmkdir flask-demo && cd flask-demotouch main.py
Edit main.py file
from flask import Flask
app = Flask(__name__)
@app.route('/')
def hello():
return "Hello World!"
if __name__ == '__main__':
app.run()
Run Flask app and visit localhost:5000
python main.pyConsole Log * Serving Flask app "main" (lazy loading) * Environment: production WARNING: Do not use the development server in a production environment. Use a production WSGI server instead. * Debug mode: off * Running on http://127.0.0.1:5000/ (Press CTRL+C to quit)
NGROK Setup
Signup for NGROK and get AuthToken
Console Logwget https://bin.equinox.io/c/4VmDzA7iaHb/ngrok-stable-linux-amd64.zipunzip ngrok-stable-linux-amd64.zip./ngrok authtoken./ngrok http 5000
ngrok by @inconshreveable (Ctrl+C to quit)
Session Status online
Account Ashish Tiwari (Plan: Free)
Version 2.3.25
Region United States (us)
Web Interface http://127.0.0.1:4040
Forwarding http://b6ad4280.ngrok.io -> http://localhost:5000
Forwarding https://b6ad4280.ngrok.io -> http://localhost:5000
Connections ttl opn rt1 rt5 p50 p90
0 0 0.00 0.00 0.00 0.00
Tuesday, March 5, 2019
Believe in yourself :Photography In Layman's Voice
First of all, I'm not a professional photographer but I know a few tricks. :)
So, this post is not for professional photographers who have already mastered their camera features.
Let's Start.
Believe In Your Skills.
If you are just starting the Photography Walk then I'm sure you already have an account on Instagram.
If you go through your photographs on Instagram you will see the pattern, the trail of your Photography journey and believe me you are clicking really awesome shots.
Just go through your Instagram feed from the beginning. I knew it! You loved your photographs.
You can learn more about this from Photography Presentation
My Journey as The_Travelling_Monk
“Your first 10,000 photographs are your worst.”
- Henri Cartier-Bresson
Read More About Henri At : https://en.wikipedia.org/wiki/Henri_Cartier-Bresson
Monday, March 4, 2019
Flower Collection ( Bokeh Effect )
Various Types of Flower from different different locations
Sunflower
Genda Phool ( Marigold )
MatchStick Flower
Pink Rose
Sunday, February 24, 2019
Fuzzy Django Flask App : Django Like Project Structure
While I was going through some legacy system which had 75,000 lines of code written in python/flask. I was wondering why it's not borken up into applications.
After discussion with other developers I came to know about that those codes were written by ex-developers 2 yrs back.
It seems those legends only knew about hello-world-in-flask from documentation because everything is written in myflaskapplication.py file ( 75,000 lines ).
Because, models, controller, blueprints, admin, forms and etc etc were written in myflaskapplication.py file.
Now big pain is to break this system into small application and then into microservices.
Since I've spend so much time working with python/django it wasn't difficult to break system's structure into small application and divide task between other developers.
Sample app can be found at, https://github.com/codetarsier/fuzzy-django-flask
Here is the sample structure.
Project Folders
- common : models and serializer for other application
- <application_structure> : contains, models, views, helpers, serializer, urls and views.
- static : contains all css, js, images
- templates : contains html files and broken into application structure like, templates/portal_setup and templates/common
- config : database, packages, secret settings
Project Structure
├── common
│ ├── __init__.py
│ ├── models.py
│ └── serializers.py
├── config
│ ├── constants.py
│ ├── __init__.py
│ ├── sample_secrets.json
│ └── settings.py
├── config.py
├── manage.py
├── portal_setup
│ ├── admin.py
│ ├── forms.py
│ ├── helpers.py
│ ├── __init__.py
│ ├── models.py
│ ├── serializers.py
│ ├── urls.py
│ └── views.py
├── README.md
├── reports.json
├── requirements.txt
├── static
│ └── portal_setup
│ ├── css
│ └── js
└── templates
└── portal_setup
├── add_portal.html
├── base.html
├── edit_portal.html
├── index.html
└── portal_details.html
