To enable Trove in DevStack, perform the following steps:

Note: The python-troveclient is automatically installed.  If you need to
control how the client gets installed, set the TROVECLIENT_REPO,
TROVECLIENT_DIR and TROVECLIENT_BRANCH environment variables appropriately.

export DEVSTACK_DIR=~/devstack
git clone https://opendev.org/openstack/devstack.git $DEVSTACK_DIR

Enable the plugin by adding the following section to $DEVSTACK_DIR/local.conf

[[local|localrc]]
enable_plugin trove https://opendev.org/openstack/trove

Optionally, a git refspec (branch or tag or commit) may be provided as follows:

[[local|localrc]]
enable_plugin trove https://opendev.org/openstack/trove <refspec>

cd $DEVSTACK_DIR
./stack.sh