Don't use conf files

[kilrau]

Off-shoot from #395 (comment)

How it is:

• we copy paste the sample conf into xud.conf on every start of container, similar we are creating a lnd.conf on testnet & mainnet and persist it all on disk
  Result: adding/changing a config parameter after first run is not possible

How it should be:

• we start xud & lnd in containers with command line parameters only avoiding issues ignoring/overwriting changed parameters by persisting a config file
• simplify (less scripting) setting parameters

[reliveyy]

What about use --xud.options '--foo bar -abc' @kilrau

[kilrau]

Not sure I understand. xud-docker internally should use command line options only - lets start with lnds.

[kilrau]

Current major UX problem this solves : once light mode, always light mode: #617

This is how lnd.conf looks like when trying to switch from light mode to full-mode.

rpclisten=0.0.0.0:10009
restlisten=0.0.0.0:8080
trickledelay=15000
max-cltv-expiry=5000
protocol.wumbo-channels=1

[Bitcoin]
bitcoin.active=1
bitcoin.node=neutrino

[neutrino]
neutrino.addpeer=bitcoin.michael1011.at:18333
neutrino.addpeer=btc.kilrau.com:18333

[routing]
routing.assumechanvalid=1

[Bitcoind]
bitcoind.rpchost=192.168.123.44
bitcoind.rpcuser=xu
bitcoind.rpcpass=xu
bitcoind.zmqpubrawblock=tcp://192.168.123.44:38332
bitcoind.zmqpubrawtx=tcp://192.168.123.44:38333

[autopilot]
autopilot.active=false

[tor]
tor.active=1
tor.socks=9050
tor.streamisolation=1