Docker: On Ubuntu, install & . On Mac, install . On Mac, in Docker for Mac preferences, assign 4 CPUs, at least 8GB Memory or more, Swap 4GB and 4 CPUs if your system allows. Elastic search needs a lot of memory to run. On Ubuntu we set enough RAM automatically. OpenCRVS has been tested on Docker version 20.10.11 and docker-compose version 1.29.2