We want the dependent services to wait until the initialization service
of mariadb finishes, but also properly accept if it already exited
before a leaf service gets picked up and put into created state. By
using the service_completed_successfully signal, we can ensure precisely
this, without being racy and leading to none booted services.
While at it, remove the compose version identifiers as docker-compose
deprecated them and always warned about when running docker-compose.
For the `git` service, ./data is always used to provide an
optional overriding of ssh host keys. In aur-dev production
containers, most services which use the data mount use an
internal Docker `data` volume instead.
Signed-off-by: Kevin Morris <kevr@0cost.org>
Additionally, for now, no-op usage of the MARIADB_SOCKET_DIR
environment variable. This is particularly useful for a serious
production setup, but we don't currently use that.
Signed-off-by: Kevin Morris <kevr@0cost.org>
