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# History ## 0.22.3 Install/update via the bootstrap script: ```shell wget https://raw.githubusercontent.com/dokku/dokku/v0.22.3/bootstrap.sh sudo DOKKU_TAG=v0.22.3 bash bootstrap.sh ``` ### Bug Fixes - #4268: @josegonzalez Properly parse flags for logs command - #4264: @josegonzalez Correct argument handling when setting the `--app` flag - #4252: @magikid Allow symbolic links for certificate and key files ### New Features - #4270: @josegonzalez Allow renaming old applications to new format - #4261: @josegonzalez Add remove by fingerprint and json format output to ssh-keys plugin - #4262: @josegonzalez Improve ps:restore logging - #4263: @josegonzalez Bump the dokku client formula on release ### Documentation - #4253: @guettli Highlight the default build method used by Dokku - #4250: @rlnd1 Update upgrading.md - #4249: @guettli Fix typo in zero downtime docs - #4247: @josegonzalez Clarify the domain name setting in the docs ### Tests - #4269: @josegonzalez Rename duplicate test - #4266: @josegonzalez Update junit test files when a bats retry is successful - #4265: @josegonzalez Retry failing and skipped tests once
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 16.04/18.04/20.04 x64 - Any currently supported release
- Debian 9+ x64
- CentOS 7 x64 (experimental)
- 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 https://raw.githubusercontent.com/dokku/dokku/v0.22.3/bootstrap.sh
sudo DOKKU_TAG=v0.22.3 bash bootstrap.sh
You can then proceed to the ip address or domain name associated with your server to complete the web-based 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 http://dokku.viewdocs.io/dokku/.
Support
You can use Github Issues, check Troubleshooting in the documentation, or join us on freenode in #dokku.
Contribution
After checking Github Issues, the Troubleshooting Guide or having a chat with us on freenode in #dokku, 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