docker: create distinct containers for blockchains

Create disctinct containers for Litecoin and Bitcoin, and also change
the readme accordingly.

docker/README.md

@@ -63,18 +63,15 @@ bitcoin into.
 # Init bitcoin network env variable:
 $ export NETWORK="simnet" 
 
-# Run "btcd" node:
-$ docker-compose up -d "btcd"
-
 # Run the "Alice" container and log into it:
-$ docker-compose up -d "alice"
-$ docker exec -i -t "alice" bash
+$ docker-compose run -d --name alice lnd_btc
+$ docker exec -i -t alice bash
 
 # Generate a new backward compatible nested p2sh address for Alice:
 alice$ lncli newaddress np2wkh 
 
 # Recreate "btcd" node and set Alice's address as mining address:
-$ MINING_ADDRESS=<alice_address> docker-compose up -d "btcd"
+$ MINING_ADDRESS=<alice_address> docker-compose up -d btcd
 
 # Generate 400 block (we need at least "100 >=" blocks because of coinbase 
 # block maturity and "300 ~=" in order to activate segwit):
@@ -93,8 +90,8 @@ Connect `Bob` node to `Alice` node.
 
 ```bash
 # Run "Bob" node and log into it:
-$ docker-compose up --no-recreate -d "bob"
-$ docker exec -i -t "bob" bash
+$ docker-compose up --no-recreate -d --name bob lnd_btc
+$ docker exec -i -t bob bash
 
 # Get the identity pubkey of "Bob" node:
 bob$ lncli getinfo
@@ -115,7 +112,7 @@ bob$ lncli getinfo
 }
 
 # Get the IP address of "Bob" node:
-$ docker inspect "bob" | grep IPAddress
+$ docker inspect bob | grep IPAddress
 
 # Connect "Alice" to the "Bob" node:
 alice$ lncli connect <bob_pubkey>@<bob_host>
@@ -198,12 +195,11 @@ bob$ lncli addinvoice --value=10000
 # Send payment from "Alice" to "Bob":
 alice$ lncli sendpayment --pay_req=<encoded_invoice>
 
-# Check "Alice"'s channel balance was decremented accordingly by the payment
-# amount
-alice$ lncli listchannels
+# Check "Alice"'s channel balance
+alice$ lncli channelbalance
 
-# Check "Bob"'s channel balance was credited with the payment amount
-bob$ lncli listchannels
+# Check "Bob"'s channel balance
+bob$ lncli channelbalance
 ```
 
 Now we have open channel in which we sent only one payment, let's imagine

docker/docker-compose.yml

@@ -77,15 +77,15 @@ services:
             - shared:/rpc
         entrypoint: ["./start-lnd.sh"]
 
-    alice:
+    lnd_ltc:
       extends: lnd
-      container_name: alice
+      container_name: lnd_ltc
       links:
-          - "btcd:blockchain"
+          - "ltcd:blockchain"
 
-    bob:
+    lnd_btc:
       extends: lnd
-      container_name: bob
+      container_name: lnd_btc
       links:
           - "btcd:blockchain"
 

docker/ltcd/Dockerfile

@@ -14,7 +14,7 @@ EXPOSE 18555 18556
 # Expose segnet ports (server, rpc)
 EXPOSE 28901 28902
 
-# Grab and install the latest version of roasbeef's fork of btcd and all
+# Grab and install the latest version of roasbeef's fork of ltcd and all
 # related dependencies.
 WORKDIR $GOPATH/src/github.com/ltcsuite/ltcd
 RUN git clone https://github.com/ltcsuite/ltcd ./
@@ -25,12 +25,11 @@ RUN go install . ./cmd/ltcctl ./cmd/gencerts
 RUN mkdir "/rpc" "/root/.ltcd" "/root/.ltcctl"
 RUN touch "/root/.ltcd/ltcd.conf"
 
-# Manually generate certificate and add all domains, it is needed to connect
 # "ltcctl" and "lnd" to "ltcd" over docker links.
 RUN "/go/bin/gencerts" --host="*" --directory="/rpc" --force
 
 # Create a volume to house pregenerated RPC credentials. This will be
-# shared with any lnd, btcctl containers so they can securely query btcd's RPC
+# shared with any lnd, btcctl containers so they can securely query ltcd's RPC
 # server.
 # You should NOT do this before certificate generation!
 # Otherwise manually generated certificate will be overriden with shared