Mainnets are failing with a testnet of the same currency running

[phoenix-web3]

• I have read the Contributing file of the documentation.
• I have searched the issues (including closed ones) and believe that this is not a duplicate.

Issue

@bridgedragon has reported that when you start a mainnet of a currency while its testnet is running, some services fail.

[bridgedragon]

I think that it is caused by reusing hostnames across docker-composes.

My proposal is to rename the tags, relating them with their network. For example, "bitcoincore" tag would become "bitcoincore-testnet" in the testnet and "bitcoincore-mainnet" in the mainnet.

The incompatibilities would be caused by using the same hostnames in the same network.