feat: remove keep selector env var and use the default keep selectors…

… from the Pact Broker task

Dockerfile

@@ -49,7 +49,6 @@ RUN ln -s /pact_broker/script/db-version.sh /usr/local/bin/db-version
 ENV RACK_ENV=production
 ENV PACT_BROKER_DATABASE_CLEAN_ENABLED=false
 ENV PACT_BROKER_DATABASE_CLEAN_CRON_SCHEDULE="15 2 * * *"
-ENV PACT_BROKER_DATABASE_CLEAN_KEEP_VERSION_SELECTORS='[{ "latest": true, "tag": true }, { "max_age": 90 }, { "deployed": true }, { "released" : true }]'
 ENV PACT_BROKER_DATABASE_CLEAN_DELETION_LIMIT=500
 ENV PACT_BROKER_DATABASE_CLEAN_OVERWRITTEN_DATA_MAX_AGE=7
 ENV PACT_BROKER_DATABASE_CLEAN_DRY_RUN=false

README.md

@@ -120,7 +120,7 @@ If you have exactly one Pact Broker container running at a time, you can configu
 * `PACT_BROKER_DATABASE_CLEAN_CRON_SCHEDULE`: set to a cron schedule that will run when your Broker is under the least operational load. Default is 2:15am - `15 2 * * *`
 * `PACT_BROKER_DATABASE_CLEAN_DELETION_LIMIT`: The maximum number of records to delete at a time for each of the categories listed in the [Categories of removable data](https://docs.pact.io/pact_broker/administration/maintenance#categories-of-removable-data). Defaults to `500`.
 * `PACT_BROKER_DATABASE_CLEAN_OVERWRITTEN_DATA_MAX_AGE`: The maximum number of days to keep "overwritten" data as described in the [Categories of removable data](https://docs.pact.io/pact_broker/administration/maintenance#categories-of-removable-data)
-* `PACT_BROKER_DATABASE_CLEAN_KEEP_VERSION_SELECTORS`:  a JSON string containing a list of the "keep" selectors described in [Configuring the keep selectors](https://docs.pact.io/pact_broker/administration/maintenance#configuring-the-keep-selectors) e.g `[{"latest": true, "tag": true}, {"max_age": 90}]` (remember to escape the quotes if necessary in your configuration files/console).
+* `PACT_BROKER_DATABASE_CLEAN_KEEP_VERSION_SELECTORS`:  a JSON string containing a list of the "keep" selectors described in [Configuring the keep selectors](https://docs.pact.io/pact_broker/administration/maintenance#configuring-the-keep-selectors) e.g `[{"latest": true, "branch": true}, { "max_age": 90 }, { "deployed" : true }, { "released" : true }]` (remember to escape the quotes if necessary in your configuration files/console).
 * `PACT_BROKER_DATABASE_CLEAN_DRY_RUN`: defaults to `false`. Set to `true` to see the output of what *would* have been deleted if the task had run. This is helpful when experimenting with or fine tuning the clean feature. As nothing is deleted when in dry-run mode, the same output will be printed in the logs each time the task runs.
 
 ### Running the clean task from an external source