Python web application ci cd pipeline python python flask
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creating a continuous integration and continuous deployment (ci/cd) pipeline for a python flask web application involves several steps. this tutorial will guide you through setting up a simple flask application, testing it, and deploying it using a ci/cd pipeline. we will use github actions for ci/cd and deploy to heroku.
step 1: setting up your flask application
first, let's create a simple flask application.
#### 1. create a directory for your project
#### 2. set up a virtual environment
#### 3. install flask
#### 4. create a simple flask application
create a file named `app.py`:
#### 5. create a requirements file
create a file named `requirements.txt`:
#### 6. create a basic test
create a file named `test_app.py`:
step 2: set up github repository
1. **initialize git**:
2. **create a github repository**:
go to github and create a new repository named `flask-ci-cd`.
3. **link your local repository to github**:
step 3: set up github actions for ci/cd
1. **create a github actions workflow**:
create a directory `.github/workflows/` and within it, create a file named `ci-cd.yml`:
step 4: deploy to heroku
1. **create a heroku account**: go to [heroku](https://www.heroku.com/) and create an account if you don't have one.
2. **install heroku cli**: follow the instructions on the [heroku dev center](https://devcenter.heroku.com/articles....
3. **create a heroku application**:
4. **add a `procfile`**: create a file named `procfile` in your project directory:
5. **add heroku deployment step in github actions**:
replace the `ci-cd.yml` file with the following to include deployment:
step 5: set up secrets in github
1. go to your github repository.
2. click on `settings` `secrets` `actions`.
3. add a new secret:
**name**: `heroku_api_key`
**value**: your heroku api key, which you can find by running `heroku auth:token` in your terminal.
step 6: push changes a ...
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