A regtest private net
docker build -t foalford/bitcoin-regtest:1.2 . docker push foalford/bitcoin-regtest:1.2
docker run -d -p 18444:18444 -p 18332:18332 -p 22:2200 foalford/bitcoin-regtest /sbin/my_init --enable-insecure-key
ssh -i insecure_key root@<IP>