Setting OPENNMS_DATABASE_CONNECTION_MAXPOOL, OPENNMS_DATABASE_CONNECTION_MAXSIZE, OPENNMS_DATABASE_CONNECTION_MINPOOL environment variables doesn’t work to update the opennms-datasources.xml.

The container’s /etc/confd/templates/opennms-datasources.xml.tpl file’s getv calls in connection-pool are missing the initial '/' - so it never uses the environment variables.

From debug log:

This should fix it:

grep 'getv "[^/]' says that this also affects trapd-configuration.xml.tpl