Dokku uses a few external images for various bits of functionality, but these must be manually updated every so often due to being referenced in code.
By moving the references to Dockerfiles, we can take advantage of dependabot to issue automatic PRs when they are out of date.
This is almost certainly the correct default for Dokku. While it's a BC break and might cause an increase in memory usage, the api is mostly internal and therefore this is safe to use.
Using compose instead of manual docker calls allows folks to customize the vector container by using a custom compose.yml template file. This opens us up to more customizations while aligning container management with how we do other external containers (such as for the proxy plugins).
Refs #5784
Some things must pull *all* apps vs filtered apps (mostly things that write out config files or install triggers). Using an unflitered list is best.
Also, we default to filtering, which should be what most usage needs.
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.
As per documentation, the `/var/log/dokku/apps` should be mounted from the host to the container. The existing mount was `/var/log/dokku` mounted to `/var/logs/dokku/apps`.
The broken mount will be removed in the next minor.
dburl adds aliases for everything, which breaks if two schemes are similar enough (anything with `aws_` as a prefix broke scheme registration). It does not appear to add anything, so we'll drop that dependency.
Also remove go-jsonmerge, as this was refactored to use structs instead of byte manipulation...
