Dokku currently injects an alternate tag into the image. Without this change, deploying new image tags (via push with a Dockerfile or git:from-image) would result in the old images lying around forever. This change ensures they are registered for removal.
Closes#4825
This ensures that unused docker images are _also_ removed. While this will mean a `ps:start` requires a rebuild in the case of a force-stop, it ensures we don't have unused images when destroying apps.
This changes restarts to drop the 'release' part that currently gets triggered, which also helps reduce the possibility that a new image layer will be added due to predeploy deploy triggers.
Note that the old method essentially halfway-rebuilt the app (which was what added the extra layer). This refactor removes that, which is a bc-break.
Additionally, scaling processes will result in deploying _only_ restarting the processes being scaled.
Closes#2184
# History
## 0.25.7
Install/update via the bootstrap script:
```shell
wget https://raw.githubusercontent.com/dokku/dokku/v0.25.7/bootstrap.sh
sudo DOKKU_TAG=v0.25.7 bash bootstrap.sh
```
### Bug Fixes
- #4855: @josegonzalez Output remote client help when there is no remote host
### New Features
- #4854: @josegonzalez Fix parallel usage for scheduler-docker-local
### Documentation
- #4856: @josegonzalez Add a note to the migration guide regarding using a Procfile for Dockerfile deploys
- #4843: @schmijos Clarify that docker-options are not passed to the launched process but instead to the docker run command
### Other
- #4844: @dependabot[bot] chore(deps): bump werkzeug from 2.0.1 to 2.0.2 in /tests/apps/python-flask
# History
## 0.25.6
Install/update via the bootstrap script:
```shell
wget https://raw.githubusercontent.com/dokku/dokku/v0.25.6/bootstrap.sh
sudo DOKKU_TAG=v0.25.6 bash bootstrap.sh
```
### Bug Fixes
- #4841: @josegonzalez Ensure pack is run as root user when building apps in docker
- #4836: @josegonzalez Fix custom dockerfile path detection
- #4839: @josegonzalez Choose the correct app when a named remote is specified in the remote ssh client
### New Features
- #4829: @josegonzalez Add ability to schedule process types in parallel
- #4837: @josegonzalez Filter --link and --volume flags during Dockerfile builds
### Documentation
- #4840: @josegonzalez Explain sha256 image digest alternative when reusing docker image tags for git:from-image deployments
### Tests
- #4842: @josegonzalez Set default process list in test cnb buildpacks
### Other
- #4832: @dependabot[bot] chore(deps): bump flask from 2.0.1 to 2.0.2 in /tests/apps/python-flask
- #4833: @dependabot[bot] chore(deps): bump jinja2 from 3.0.1 to 3.0.2 in /tests/apps/python-flask
- #4831: @dependabot[bot] chore(deps): bump flask from 2.0.1 to 2.0.2 in /tests/apps/multi
The link flag was previously not filtered _after_ fetching build args for dockerfile builds, which meant if a plugin exposed that in it's own docker-args-build trigger, it would break deploys.
Additionally, allow for whitespaces between link and volume flags.
# History
## 0.25.5
Install/update via the bootstrap script:
```shell
wget https://raw.githubusercontent.com/dokku/dokku/v0.25.5/bootstrap.sh
sudo DOKKU_TAG=v0.25.5 bash bootstrap.sh
```
### Bug Fixes
- #4787: @josegonzalez Do not require double quotes when issuing dokku run commands
- #4816: @josegonzalez Set the DOKKU_HOST_ROOT on docker container start
- #4810: @josegonzalez Handle udp ports when fetching network config
- #4812: @josegonzalez Silence stderr when fetching a command from the Procfile
- #4800: @josegonzalez Add help2man os package for copyfiles make target to devcontainer
- #4796: @josegonzalez Remove the --restart flag from pre-deploy chown containers
### New Features
- #4809: @josegonzalez Implement storage:ensure-directory command
- #4801: @josegonzalez Expose git-from-archive and git-from-image plugin triggers
- #4785: @josegonzalez Add support for VSCode Dev Containers
### Documentation
- #4819: @stephenheron Fixed typo in tar documentation
- #4824: @dy3l Fix GitLab case
- #4822: @josegonzalez Add a note about using the registry:login command for private image deployments
- #4808: @francipvb Added a comment about Dockerfile deployment
- #4807: @FinnWoelm Docs: Fix instructions for enabling Docker Buildkit
- #4786: @josegonzalez Add missing argument from trigger documentation
- #4780: @adam12 Update source for `dokku-update`
### Tests
- #4828: @josegonzalez Update golang in test apps to latest version
- #4815: @josegonzalez tests: use python3 shebang for shellcheck-to-junit script
- #4814: @josegonzalez Add wget to devcontainer to fix shfmt installation
- #4791: @josegonzalez Fix test running in devcontainer
### Other
- #4813: @dependabot[bot] chore(deps-dev): bump heroku/heroku-buildpack-php from 197 to 198 in /tests/apps/php
- #4802: @dependabot[bot] chore(deps): bump django from 3.1.12 to 3.1.13 in /tests/apps/dockerfile-release
- #4784: @josegonzalez Upgrade vector image to 0.16.x
When deploying, if the procfile-get-command fails for a given process, this causes an error to output to stderr. We instead silence this as the error isn't important.
When an app only has UDP ports exposed, deploys will fail as we expect there to be a single TCP port.
While we _should_ support both, the easier fix is to ignore things and move on. Users can manually expose UDP ports as necessary via the -p flag (or by not specifying the port as a UDP port).
One quirk discovered during tests is that disabling zero-downtime deploys results in odd output, but also a deploy can succeed even if one of the processes that skipped zero-downtime fails. We should fix this in another PR, but this is documented in tests for now.
Closes#4804
# History
## 0.25.4
Install/update via the bootstrap script:
```shell
wget https://raw.githubusercontent.com/dokku/dokku/v0.25.4/bootstrap.sh
sudo DOKKU_TAG=v0.25.4 bash bootstrap.sh
```
### Bug Fixes
- #4775: @josegonzalez Add support for url-encoded vector-sink config values …
- #4777: @josegonzalez Set correct version for registry plugin
### Documentation
- #4776: @josegonzalez Clarify valid values for container-type when entering containers
### Other
- #4774: @dependabot[bot] chore(deps): bump sqlparse from 0.4.1 to 0.4.2 in /tests/apps/dockerfile-release
Previously, a user could inadvertently override the type or the inputs value by specifying those in their config. Instead, we force-set these so that users do not have potentially invalid config.
# History
## 0.25.3
Install/update via the bootstrap script:
```shell
wget https://raw.githubusercontent.com/dokku/dokku/v0.25.3/bootstrap.sh
sudo DOKKU_TAG=v0.25.3 bash bootstrap.sh
```
### Bug Fixes
- #4767: @josegonzalez Output logs when container rename fails and continue on
- #4764: @josegonzalez Reference correct plugin when setting up app-json plugin
### Refactors
- #4741: @josegonzalez Use a Dockerfile to speed up env var injection for herokuish app builds
### Documentation
- #4763: @josegonzalez Remove install doc references to removed web installer
### Other
- #4766: @josegonzalez Capitalize certain log messages for aesthetic reasons
