Heroku-cli.md

Heroku Terminal Commands

1. Add PUBLIC SSH Key to Heroku : $heroku keys:add

2. Provide a unique name (For ur application): $heroku create <unique-name>

3. Deploy the changes : $git push heroku master

Deploy Flask app to Heroku

1. Longin to Heroku $heroku login

2. Provide a unique name (For ur application): $heroku create <unique-name>

3. Check addons $heroku addons

4. Add addons $ heroku addons:create heroku-postgresql:<plan-name> --app <heroku-app-name>

   Note-

   Heroku has two basic plans-

   1. hobby-dev
   2. hobby-basic

   Heroku-app-name = the unique name that we created for the app

5. Handling config vars if any-

   • List all config vars: $ heroku config

   • Get specific config var: $ heroku config:get GITHUB_USERNAME

   • Set congig var: $ heroku config:set GITHUB_USERNAME=joesmith

   • Remove a config var: $ heroku config:unset GITHUB_USERNAME=joesmith

6. Handling Procfile-

   • Create Procfile in project's root directory w/o extension- $ touch Procfile
   • Insert into procfile(run.py contains app var.)- web: gunicorn run:app

7. Create runtime.txt in project's root directory & specify the used python version-

   • $ touch runtime.txt
   • inside the runtime.txt python-3.6.9

8. Create requirements.txt file-

   • This step must be followed after step 7, if in any case problem occurs, delete this file and again create.
   • $ pip freeze > requirements.txt
   • If pkg-resources==0.0.0 exists, then remove it, it may cause build-failure.

9. Finally, go to your heroku app's deploy section, then grab the command to add remote and push to master branch.

It's not done yet

10. Start the python interpretor to create the database:

• $ heroku run python
• in python interpretor create db as-

from sweats import db, create_app db.create_all(app=create_app()) exit()

11. Finally, type to open website: $ heroku open

12. Open DB in the heroku server- $ heroku pg:psql --app sweats Query: sweats::DATABASE=> SELECT * FROM customers;