To upload a Solr configuration (sample_techproducts_configs) to ZooKeeper, execute the command:

${SOLR_ROOT}/server/scripts/cloud-scripts/zkcli.sh \
-zkhost "localhost:2181/solr" \
-cmd upconfig \
-confname solr_config1 \
-confdir ${SOLR_ROOT}/server/solr/configsets/sample_techproducts_configs/conf

You can verify that the configuration is created in ZooKeeper:

${SOLR_ROOT}/bin/solr zk ls /solr/configs -z localhost:2181