| Published | 11/04/2017 |
|---|---|
| Last Updated | 17/11/2024 |
Create a new app
# generate random app name
heroku create
# specify app name
heroku create foo
Link a folder with an existing Heroku app:
heroku git:remote -a project
Different ways of running a heroku command with a particular app
# using git remote name
heroku command --remote remote_name
heroku command -r remote_name
# using app name
heroku command --app app_name
heroku command -a app_name
Log types and filters:
App logs: --source app
System logs: --source heroku
API logs: --source heroku --dyno api
Log format:
timestamp source[dyno]: message
# example
2010-09-16T15:13:46.677020+00:00 app[web.1]: Processing PostController#list (for 208.39.138.12 at 2010-09-16 15:13:46) [GET]
2010-09-16T15:13:46.677023+00:00 app[web.1]: Rendering template within layouts/application
2010-09-16T15:13:46.677902+00:00 app[web.1]: Rendering post/list
2010-09-16T15:13:46.678990+00:00 app[web.1]: Rendered includes/_header (0.1ms)
2010-09-16T15:13:46.698234+00:00 app[web.1]: Completed in 74ms (View: 31, DB: 40) | 200 OK [<http://myapp.heroku.com/>]
2010-09-16T15:13:46.723498+00:00 heroku[router]: at=info method=GET path="/posts" host=myapp.herokuapp.com" fwd="204.204.204.204" dyno=web.1 connect=1ms service=18ms status=200 bytes=975
2010-09-16T15:13:47.893472+00:00 app[worker.1]: 2 jobs processed at 16.6761 j/s, 0 failed ...
Commands:
# retrieve logs, 100 lines
heroku logs
# specify number of lines retrieved [--num / -n] max 1500
heroku logs -n 200
# get realtime logs [--tail / -t]
heroku logs --tail
Common commands