How to deploy to Heroku from a local docker image

Deployment flow

1 Create a Heroku app on Heroku. (URL is given)

2 Push the Docker image to Heroku's container registry (Docker image storage on Heroku).

3 Release Docker image to app

4 Access the deployed application with a browser

Create an account and register your credit card in advance. (You cannot publish without registering your credit card.)

Install heroku cli (mac)

brew install heroku/brew/heroku

Login to heroku

heroku login

Log in from the browser that starts automatically.

Log in to the container registry

heroku container:login

Go to app

• Heroku is a specification that refers to the docker file directly under the root directory of the application. Therefore, if the dockerfile is in a different location, you need to duplicate it and place the dockerfile for heroku directly under the root.

If you try to run apache on heroku, an error will occur, so some measures are required.

Create an error handling configuration file

run-apache2.sh

sed -i "s/Listen 80/Listen ${PORT:-80}/g" /etc/apache2/ports.conf
rm /etc/apache2/mods-enabled/mpm_event.conf
rm /etc/apache2/mods-enabled/mpm_event.load
apache2-foreground "$@"

Add description and execution command to copy to container with dockerfile

dockerfile for heroku.

COPY ./docker/app/run-apache2.sh /usr/local/bin/
CMD [ "run-apache2.sh" ]

Grant execute permission to the error handling configuration file

chmod +x run-apache2.sh

Create heroku app

heroku create

Install add-ons to work with the database. (ignite => free)

heroku addons:create cleardb:ignite

Check the cleardb connection settings.

heroku config | grep CLEARDB_DATABASE_URL

mysql://username:password@hostname/Database name?

Setting environment variables

heroku config:add DB_USERNAME=username

heroku config:add DB_PASSWORD=password

heroku config:add DB_DB_HOST='hostname' (.Because it contains'Enclose in)

heroku config:add DB_DATABASE=username

Confirmation

heroku config

Creating a table

heroku run "File containing table creation functions"

Push to registry container

heroku container:push web

Release to registry container

heroku container:release web

Access from the browser

heroku open

• When multiple apps are registered

heroku apps:info

Look up the application name and at the end of the command

--app app name

Is given.

How to remove heroku app

heroku apps:destroy --app app name-confirm app name

Check heroku logs (monitored with --tail)

heroku logs --tail

Reflect the correction. Fixed local files.

Push to registry container

heroku container:push web

Release to registry container

heroku container:release web