latest tag for the default DOKKU_CNB_BUILDER
Previously the default value for `DOKKU_CNB_BUILDER` was `heroku/buildpacks`, which for Docker is equivalent to `heroku/buildpacks:latest`. The `latest` tag is about to be deleted (see heroku/builder#344), so this switches the default value to `heroku/buildpacks:20` - which is what the `latest` tag is currently as alias for. Longer term, `DOKKU_CNB_BUILDER` should be switched to the non-deprecated `heroku/builder:*` images, however, that's potentially a breaking change, so is out of scope of this bug-fix PR. For the list of available builders/tags, see: https://github.com/heroku/builder#heroku-builder-images Fixes #5861.
Dokku
Docker powered mini-Heroku. The smallest PaaS implementation you've ever seen.
Sponsors
Become a sponsor and get your logo on our README on GitHub with a link to your site. [Become a sponsor]
Backers
Support us with a monthly donation and help us continue our activities. [Become a backer]
Requirements
A fresh VM running any of the following operating systems:
- Ubuntu 20.04 / 22.04 x64 - Any currently supported release
- Debian 10+ x64
- Arch Linux x64 (experimental)
An SSH keypair that can be used for application deployment. If this exists before installation, it will be automatically imported into dokku.
Otherwise, you will need to import the keypair manually after installation using dokku ssh-keys:add.
Installation
To install the latest stable release, run the following commands as a user who has access to sudo:
wget -NP . https://dokku.com/install/v0.30.4/bootstrap.sh
sudo DOKKU_TAG=v0.30.4 bash bootstrap.sh
You can then proceed to configure your server domain (via dokku domains:set-global) and user access (via dokku ssh-keys:add) to complete the installation.
If you wish for a more unattended installation method, see these docs.
Upgrade
View the docs for upgrading from an older version of Dokku.
Documentation
Full documentation - including advanced installation docs - are available online at https://dokku.com/docs/getting-started/installation/.
Support
You can use GitHub Issues, check Troubleshooting in the documentation, or join us on Gliderlabs Slack in the #dokku channel.
Contribution
After checking GitHub Issues, the Troubleshooting Guide or having a chat with us on Gliderlabs Slack in the #dokku channel, feel free to fork and create a Pull Request.
While we may not merge your PR as is, they serve to start conversations and improve the general Dokku experience for all users.
License
MIT License © Jeff Lindsay