Everything you need:
docker run --rm -it -d \
--name casper-local-devnet \
-p 11101:11101 -p 12101:12101 -p 13101:13101 -p 14101:14101 -p 21101:21101 -p 22101:22101 \
koxu1996/casper-cctl:2.0-rc3
Wait some time until container becomes healthy, then you can interact with network. Example of getting state root hash:
curl -X POST \
--location 'http://127.0.0.1:21101/rpc' \
--header 'Content-Type: application/json' \
--data '{"jsonrpc": "2.0", "method": "chain_get_state_root_hash", "id": 1}'
cd ./docker
docker build . -t cspr-cctl/release-2.0-rc3