dokku/docs/appendices/0.30.0-migration-guide.md

0.30.0 Migration Guide

Changes

• The app.json file is now extracted from the source code instead of the built image. For deploys via git:from-image, the file is extracted from the built image.

Removals

• Support for SPDY has been removed. No major browser supports it as of 2021. Custom nginx.conf.sigil templates referencing spdy-related variables will continue to build until the 1.0.0 release.
• Support for the DOKKU_SCALE file - deprecated in 0.25.0 - has been removed in favor of the formations key in the app.json file. Please see the process management documentation for more information on how to use the formation key of the app.json file.
• The deprecated --detach global flag for dokku run was removed. Please see the one-off tasks documentation for more information on running detached containers.
• The following deprecated trigger have been removed in favor of the post-release-builder trigger. See the plugin triggers documentation for more details.
  • post-release-buildpack
  • post-release-dockerfile
  • post-release-pack
• The ability to call logs:failed without specifying an app or --all flag has been removed. This was deprecated in 0.22.0. Please see the logs:failed.
• The following app shell functions - deprecated since 0.20.0 - have been removed in favor of their plugin trigger equivalents. Sourcing the app/functions file will fail going forward.
  • apps#apps_create() is removed in favor of plugn trigger app-create.
  • apps#apps_destroy() is removed in favor of plugn trigger app-destroy.
  • apps#apps_exists() is removed in favor of plugn trigger app-exists.
  • apps#apps_maybe_create() is removed in favor of plugn trigger app-maybe-create.
• The following common shell functions have been removed:
  • common#is_container_running() (deprecated since 0.12.6) is removed in favor of common#is_container_status().
  • common#is_app_running() (deprecated since 0.22.0) is removed in favor of ps#fn-ps-is-app-running().
• The global --rm-container and --rm flags - deprecated since 0.25.0 - have been removed.
• The following git shell functions have been removed:
  • git#use_git_worktree() (deprecated since 0.23.7) has been removed. There is no alternative as the function has been made internal.
  • git#git_deploy_branch()(deprecated since 0.21.0) has been removed in favor of plugn trigger git-deploy-branch.
• The following nginx commands - deprecated since 0.20.0 - have been removed:
  • nginx:show-conf has been removed in favor of nginx:show-config.
  • nginx:validate has been removed in favor of nginx:validate-config.
  • nginx:build-config - deprecated since 0.21.0 - has been removed in favor of proxy:build-config.
• The following proxy functions - deprecated since 0.20.0 - have been removed in favor of their plugin trigger equivalents. Sourcing the proxy/functions file will fail going forward.
  • proxy#is_app_proxy_enabled() is removed in favor of plugn trigger proxy-is-enabled.
  • proxy#get_app_proxy_type() is removed in favor of plugn trigger proxy-type.