Rails (postgeresql. Ubuntu environment), heroku deployment

1 Install rails gem

#For rails6
gem install rails -v 6.0.1
#rails5.In case of 2
gem install rails -v 5.2.1

2 Postgresql installation

$ sudo sh -c "echo 'deb http://apt.postgresql.org/pub/repos/apt/ xenial-pgdg main' > /etc/apt/sources.list.d/pgdg.list"
$ wget --quiet -O - http://apt.postgresql.org/pub/repos/apt/ACCC4CF8.asc | sudo apt-key add -
$ sudo apt-get update
$ sudo apt-get install postgresql-common
$ sudo apt-get install postgresql-9.5 libpq-dev

3 Create a PostgreSQL Account

$ sudo -u postgres psql
postgres=# create role <username> with createdb login password '<password>';
postgres=# \q

4 Rails new

rails new appname -d postgresql
cd appname

5 Edit config / database.yml

default: &default
  adapter: postgresql
  encoding: unicode
  pool: 5
  #Below, 3 lines added
  username: <username> #Same as the set PostgreSQL Account
  password: <password> #Same as the set PostgreSQL Account
  host: localhost
development:
  <<: *default
  database: appname_development #The appname should be the appname for rails new.
test:
  <<: *default
  database: appname_test #The appname should be the appname for rails new.

6 Create database with rails db: create & install webpacker

$ cd appname
$ rails db:create

#Not required for rails5
$ source <(curl -sL https://cdn.learnenough.com/yarn_install)
$ yarn install --check-files
$ rails webpacker:install

#config/enviroments/development.rb
config.hosts.clear

7 Heroku CLI Download and install

$ sudo curl https://cli-assets.heroku.com/install-ubuntu.sh | sh

$ heroku --version

8 Heroku login

$ heroku login
Email: [email protected]
Password: xxxxxxxx

9 Heroku Deploy Ready & Deploy

$ cd rails app
$ git init
$ git add -A
$ git commit -m "first"

#Deploy
$ heroku create
$ git push heroku master
$ heroku run rake db:migrate

--Application--Create heroku app with SSH settings 1 First, log in to Heroku.

$ heroku login --interactive
#You will be asked for your email address and password, so enter them and click enter
Enter your Heroku credentials:
Email: [email protected]
Password: *********

2 Next, add the key to Heroku.

$ heroku keys:add

3 Do you want to upload to Heroku? Is asked, so enter y

? Would you like to upload it to Heroku? (Y/n)

#Then, if the following code appears, it is successful.
Uploading /home/ec2-user/.ssh/id_rsa.pub SSH key... done

4 deploy

$ heroku create newsable-skillhub

#An app is created on Heroku.
Creating ⬢ newsable-skillhub... done
https://newsable-skillhub.herokuapp.com/ | https://git.heroku.com/newsable-skillhub.git

$ git init
$ git add -A
$ git commit -m "first"
$ git push heroku master

$ heroku run rake db:migrate