This makes the installation a bit more secure by ensuring a user does not accidentally expose a way for unauthorized users to add new ssh keys to the system.
Additionally, this removes the extra HOSTNAME file to make the initial install process easier (that file was not modifiable by any dokku commands.
Closes#2247
As of April 2021, it will no longer be an LTS release, and thus us supporting it will increase maintenance burdens.
Also switch CI to use 18.04, so as to test what we currently support.
Closes#4505
While the latest packages may continue to work on other releases, we will no longer officially support these releases, nor will we distribute packages.
This script previously ran through the docker installation process with the edge channel on each run. Instead, we only run the docker installation if docker is not available. In addition, we force set the channel to stable, ensuring the script installs the correct channel for stable docker installations.
Closes#3269
While I do not agree with _every_ style change, this will force Dokku to have consistent formatting across all shell scripts, which is arguably a Good Thing™.
The command used to reprocess everything is:
```shell
shfmt -l -bn -ci -i 2 -w .
```
This allows us to force another plugin as the default vhost implementation, or disable it altogether in favor of some higher-level proxy implementation, such as one that integrates with service discovery.
The centos rpm packages should be installable on centos once this is merged and released. However, Dokku will not maintain an Rhel-specific repository as there is no way for us to feasibly test it.
Closes#3046
Given a user wants to manually override the `vhost_enable` debian config, a user has to specify both $DOKKU_VHOST_ENABLE and $VHOST_ENABLE. This patch makes it rely on $DOKKU_VHOST_ENABLE like the others which use the `$DOKKU_` prefix
This pr makes it slightly easier to support dockerfile installations
- "simplifies" the bootstrap process by dividing it into distinct chunks
- Allows specifying `--no-install-recommends` when a dockerfile installation is detected
- Uses functions everywhere
- Removes global variables where possible
- Fixes shellcheck issues
- Allows specifying debconf via the command-line
[ci skip]
