Upgrade our hosted btcd,ltcd,geth,lndbtc,lndltc,raiden to latest version

[kilrau]

btcd-simnet is the instance that hosts btcd,ltcd and geth as well as lnd's & raiden at the moment, which are mining our own simnet chain.

Step 1 would be to update these all to the latest versions (especially https://github.com/ltcsuite/ltcd/releases). We might be running our own fork to make mining the simnet chain possible:

• use https://github.com/ExchangeUnion/raiden/ (don't change anything)
• check https://github.com/ExchangeUnion/go-ethereum
• check https://github.com/ExchangeUnion/btcd

Everything currently running should be located in /home/xud on the instance.

Securely, making sure nothing breaks. E.g. we could clone the instance, and/or re-create the chains in a new instance, starting mining from scratch, essentially creating a new simnet, all fine.

[michael1011]

I updated LTCD to the latest master for #63

[LePremierHomme]

Updates:

• go was upgraded to 1.13
• ltcd was rebuilt with latest go
• btcd was upgraded to v0.20.1-beta
• geth was upgraded to v1.9.11
• xud2/3 instances got turned off. Reasons: high maintenance effort and connext will not allow multi-hop trades anyways in future
• It was decided not to upgrade LND on xud1 for now

Current issue: Connecting with raiden via simnet setup to geth rpc endpoint doesn’t work well. It’s crashing with this error after launch, or about 1 min later:

requests.exceptions.ReadTimeout: HTTPConnectionPool(host='35.231.222.142', port=8546): Read timed out. (read timeout=10)

It doesn’t looks like a problem with the initial connection, which will cause it to close immediately with a different error. The connection works fine when using a web3 test app.

[kilrau]

All done, closing.