Creating the project
Now the fun part begins. Let’s get to the code.
- First create a project folder. In my case, I will be using the name Cloud Run Tutorial.
- Go to the project folder and create a file called requirements.txt and add Flask==1.1.1 to the file.
- Now create a python file called app.py and add the following lines to it.
# importing Flask
from
flask
import
Flask
app
=
Flask(__name__)
# specifying the route
@app
.route(
'/'
)
def
hello_world():
return
'Hello, World !'
# this if block make sure that Flask app runs
# only if the file is executed directly
if
__name__
=
=
'__main__'
:
# exposing port 8080 of localhost
app.run(host
=
'0.0.0.0'
, port
=
8080
)
If you have any confusion with the above code or want to learn more I prefer you read the flask documentation here.
- Next create a Dockerfile with the name Dockerfile (without any extension) and add the following lines of code to it.
#pulls python 3.7’s image from the docker hub
FROM python:alpine3.
7
#copies the flask app into the container
COPY .
/
app
#sets the working directory
WORKDIR
/
app
#install each library written in requirements.txt
RUN pip install
-
r requirements.txt
#exposes port 8080
EXPOSE
8080
#Entrypoint and CMD together just execute the command
#python app.py which runs this file
ENTRYPOINT [
"python"
]
CMD [
"app.py"
]
Guide to deploy containers on Google Cloud Run
Google Cloud Run is one of the fast and scalable solution for your API deployment over secure https connection and can be considered as first choice of every developer. Well firebase is for static websites, right? What if we can deploy Dynamic websites on firebase too? All you need is Cloud Run. Here, in this tutorial we will be showing you how you can deploy a simple website on Cloud Run. we will be using Flask for the website. First set-up your system with Google Cloud SDK. If you don’t know how to do it I recommend you read through their official documentation here.