Asynchronous image removal would remove intermediate build images during the build process, causing intermittent build failures for users of multi-stage dockerfiles. While we still remove intermediate docker images that may be used in the current build, we now do so during the deploy, ensuring that there are no intermediate build failures in the future.
Closes#3474
As this trigger is always in the execution path, `plugn` starts and expensively checks to see if it can execute the trigger. Rather than call this on every invocation, skip the trigger if no non-core implementation exists.
A builder plugin implements some method for 'building' artifacts from a given source code archive. This refactor moves the majority of the image building code into separate plugins, allowing us to implement other builders, but also simplifying the common pugin codebase.
Also move the pre-build-buildpack hook from the build-env plugin to builder-herokuish.
This reduces duplication and allows users to rely on global arguments to generate most labels needed.
The 'commit' command cannot have global arguments because the whitespace within the label change breaks string-based interpolation, and shell arrays cannot be exported.
# History
## 0.17.9
Install/update via the bootstrap script:
```shell
wget https://raw.githubusercontent.com/dokku/dokku/v0.17.9/bootstrap.sh
sudo DOKKU_TAG=v0.17.9 bash bootstrap.sh
```
### Bug Fixes
- #3593: @JakeAngell Fix nginx template for https in "Connection" header
### Documentation
- #3595: @josegonzalez Drop extra help output for trace
# History
## 0.17.8
Install/update via the bootstrap script:
```shell
wget https://raw.githubusercontent.com/dokku/dokku/v0.17.8/bootstrap.sh
sudo DOKKU_TAG=v0.17.8 bash bootstrap.sh
```
### Bug Fixes
- #3591: @palfrey Allow SSH keys with no ending newline
### New Features
- #3587: @josegonzalez feat: drop make and gcc as dependencies
# History
## 0.17.6
Install/update via the bootstrap script:
```shell
wget https://raw.githubusercontent.com/dokku/dokku/v0.17.6/bootstrap.sh
sudo DOKKU_TAG=v0.17.6 bash bootstrap.sh
```
### New Features
- #3578: @josegonzalez Allow omitting resource args by setting DOKKU_OMIT_RESOURCE_ARGS
This change allows operators to specify a DOCKER_BIN environment variable. This will specify a binary to run when executing docker, which is useful in cases where the 'docker' command being run must be modified in a way that would otherwise be invasive to Dokku, but minimalistic if done within a wrapper.
# History
## 0.17.3
Install/update via the bootstrap script:
```shell
wget https://raw.githubusercontent.com/dokku/dokku/v0.17.3/bootstrap.sh
sudo DOKKU_TAG=v0.17.3 bash bootstrap.sh
```
### Bug Fixes
- #3570: @znz Fix typos in trace help
### New Features
- #3574: @josegonzalez Add support for pulling app status from scheduler plugins
- #3571: @znz Simplify hostname_regex
A DOKKU_SCALE file will always be used for managing the scale count for an app if it exists in a repository. As such, ps:scale usage should be disabled in those cases. This commit makes that more apparent.
Also document how to build a specific core plugin for testing purposes.
Closes#3544
# History
## 0.16.4
Install/update via the bootstrap script:
```shell
wget https://raw.githubusercontent.com/dokku/dokku/v0.16.4/bootstrap.sh
sudo DOKKU_TAG=v0.16.4 bash bootstrap.sh
```
### Bug Fixes
- #3547: @josegonzalez Correct retrieval of resource values for alternative schedulers
### New Features
- #3546: @josegonzalez Add ability to trigger an arbitrary plugin hook
# History
## 0.16.3
Install/update via the bootstrap script:
```shell
wget https://raw.githubusercontent.com/dokku/dokku/v0.16.3/bootstrap.sh
sudo DOKKU_TAG=v0.16.3 bash bootstrap.sh
```
### Bug Fixes
- #3541: @josegonzalez Handle case where image is null on first deploy
### New Features
- #3543: @josegonzalez Add ability to clear global domains
- #3517: @josegonzalez SSH key updates
- #3538: @josegonzalez Silence dokku run 'errors'
### Documentation
- #3523: @MarcDiethelm Add an example how to specify a Dockerfile for deployment
- #3539: @josegonzalez Warn users when ufw is enabled
# History
## 0.16.1
Install/update via the bootstrap script:
```shell
wget https://raw.githubusercontent.com/dokku/dokku/v0.16.1/bootstrap.sh
sudo DOKKU_TAG=v0.16.1 bash bootstrap.sh
```
### New Features
- #3532: @josegonzalez refactor: allow the scheduler to decide if an app is deployed
### Documentation
- #3530: @jhstatewide Updated info about supported Ubuntu versions
# History
## 0.15.5
Install/update via the bootstrap script:
```shell
wget https://raw.githubusercontent.com/dokku/dokku/v0.15.5/bootstrap.sh
sudo DOKKU_TAG=v0.15.5 bash bootstrap.sh
```
### New Features
- #3511: @josegonzalez Add json output to config:export
### Documentation
- #3510: @josegonzalez Remove SPONSORS doc in favor of OpenCollective
- #3509: @Neamar Missing space in markdown formatting
- #3507: @renestalder Fix GitLab CI examples
Rather than always assuming a missing `WORKDIR` means herokuish, we instead inspect the image to verify that it is. If it is, then and _only_ then do we set WORKDIR. Otherwise, we respect the decision of `docker cp` to execute from within the last known `WORKDIR` context, which is inherited at the image level, not image metadata level.
Additionally, speed up `is_image_herokuish_based` by inspecting the environment variables on the image. When there is a "USER=herokuishuser", we can more or less safely assume it is an image that Dokku built, and is therefore a herokuish image. While possible, it would be very strange if a non-herokuish image had this environment variable set, so it is a relatively safe change.
