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# History ## 0.22.0 Install/update via the bootstrap script: ```shell wget https://raw.githubusercontent.com/dokku/dokku/v0.22.0/bootstrap.sh sudo DOKKU_TAG=v0.22.0 bash bootstrap.sh ``` See the [0.22.0 migration guide](/docs/appendices/0.22.0-migration-guide.md) for more information on migrating to 0.22.0. ### Bug Fixes - #4204: @josegonzalez Ensure the image is not an empty string - #4198: @josegonzalez Reference extracted Procfile - #4194: @josegonzalez Drop appName check in apps:report - #4183: @josegonzalez Embed pb.UnimplementedGreeterServer to avoid linting issues - #4182: @josegonzalez Upgrade herokuish to fix nodejs tests - #4173: @karimsan Add build-essential to Vagrant provision - #4181: @josegonzalez Conditionally mount the dokku-arch folder if it exists - #4130: @josegonzalez Clear proxy configs on boot - #4131: @josegonzalez Bump minimum docker version - #4123: @fomojola Support for expected CHECKS text with special characters - #4115: @josegonzalez Add missing labels to built images - #4116: @Schlepptop Ensure config:clear an be called ### New Features - #4209: @josegonzalez Add experimental support for Cloud Native Buildpacks (CNB) - #4210: @josegonzalez Add migration guide link to release notes - #4203: @josegonzalez Cleanup log output for failure case - #4208: @ankane Add ability to change the access log format - #4202: @josegonzalez Schedule related images for cleanup when retiring containers - #4197: @josegonzalez Retire intermediate containers after use - #4128: @fomojola Added the container index to the network-compute-ports trigger - #4191: @josegonzalez Create codeql-analysis.yml - #4139: @Yihao-G Allow controlling Nginx proxy-buffer-size, proxy-buffering, proxy-buffers, proxy-busy-buffers-size - #4156: @ltalirz When `cert:add` remove previous cert before copying the new cert - #4129: @josegonzalez Prohibit non-dns names for apps and process types - #4125: @josegonzalez Allow customizing the various nginx templates - #4121: @josegonzalez Add ability to disable custom ninx.conf.sigil extraction ### Refactors - #4160: @nerg4l Rewrite logs plugin in Go - #4149: @josegonzalez Rewrite ps plugin in golang - #4080: @hugopeixoto Stop using VHOST when listing app domains and urls - #4117: @josegonzalez Rewrite app-json plugin in golang - #4113: @josegonzalez Drop herokuish release code ### Documentation - #4196: @josegonzalez Correctly doc apps:report output - #4195: @luizpicolo Fix whitespace in process-management docs - #4184: @badsyntax Add note regarding using plugin triggers instead of sourcing functions - #4188: @fomojola Added the autosync community plugin - #4187: @nahtnam Add `-p` flag to "Run on External Volume" tutorial - #4186: @badsyntax Add dokku-discourse to community plugins list - #4170: @chrisjsimpson Add note on how to enable buildkit usage - #4168: @josegonzalez Revert "The default branch for ruby-getting-started is 'main', not 'master" - #4167: @nateww The default branch for ruby-getting-started is 'main', not 'master - #4135: @znz Fix broken table - #4140: @swrobel Note Ubuntu 20.04 support in README - #4136: @hugopeixoto Update push command for sample app in docs - #4124: @josegonzalez Note that docker options require app rebuilds - #4098: @carlosgeos Add a note on how nginx handles load balancing - #4111: @josegonzalez Add large version of dokku image - #4100: @turicas Fix markdown syntax in nginx docs ### Other - #4201: @dependabot-preview[bot] chore(deps): bump jetty-servlet from 9.4.34.v20201102 to 9.4.35.v20201120 in /tests/apps/java - #4200: @dependabot-preview[bot] chore(deps-dev): bump heroku/heroku-buildpack-php from 183 to 185 in /tests/apps/php - #4189: @dependabot-preview[bot] chore(deps): bump thin from 1.7.2 to 1.8.0 in /tests/apps/ruby - #4175: @dependabot-preview[bot] chore(deps): bump jetty-servlet from 9.4.33.v20201020 to 9.4.34.v20201102 in /tests/apps/java - #4172: @dependabot-preview[bot] chore(deps): bump github.com/golang/protobuf from 1.4.2 to 1.4.3 in /tests/apps/gogrpc - #4185: @dependabot-preview[bot] chore(deps): bump socket.io from 2.3.0 to 3.0.1 in /tests/apps/.websocket.disabled - #4190: @dependabot-preview[bot] chore(deps-dev): bump heroku/heroku-buildpack-php from 182 to 183 in /tests/apps/php - #4165: @dependabot-preview[bot] chore(deps): bump jetty-servlet from 9.4.31.v20200723 to 9.4.33.v20201020 in /tests/apps/java - #4153: @dependabot-preview[bot] chore(deps-dev): bump heroku/heroku-buildpack-php from 181 to 182 in /tests/apps/php - #4144: @dependabot-preview[bot] chore(deps-dev): bump heroku/heroku-buildpack-php from 180 to 181 in /tests/apps/php - #4137: @dependabot-preview[bot] chore(deps-dev): bump heroku/heroku-buildpack-php from 179 to 180 in /tests/apps/php - #4118: @dependabot[bot] chore(deps): bump django from 3.0.2 to 3.0.7 in /tests/apps/dockerfile-release - #4103: @dependabot-preview[bot] chore(deps-dev): bump heroku/heroku-buildpack-php from 178 to 179 in /tests/apps/php - #4091: @dependabot-preview[bot] chore(deps): bump jetty-servlet from 9.4.30.v20200611 to 9.4.31.v20200723 in /tests/apps/java
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/v0.22.0/bootstrap.sh
sudo DOKKU_TAG=v0.22.0 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