The dev image includes sshd and a script to start it.
# Get latest version of the ugate CLI for tunnel
go install github.com/costinm/ugate/cmd/hbone@latest
# Address of the deployment
GATE=ugatevm-yydsuf6tpq-uc.a.run.app:443
ssh -v -o StrictHostKeyChecking=no \
-o ProxyCommand='hbone https://$GATE/dm/127.0.0.1:22' root@$GATE