Setting up Electrum and EPS on your Dojo

All credit goes to Mark Engelberg (https://github.com/Engelberg) for figuring this out!

His original writeup can be found at:
	https://gist.github.com/Engelberg/aac9da2f27b723683982d187bd4d5ea4

Thought I'd just write more of a follow along tutorial for the less technical

## Written for use with Ubuntu Desktop 18.04 LTS & Dojo v1.0.0 ##

## Stop your Dojo
$ cd /path/to/docker/my-dojo/ && sudo ./dojo.sh stop

## Modify the docker-compose.yaml file
$ nano docker-compose.yaml

	## Under the section for `bitcoind` add:
	ports:
	  - "127.0.0.1:28256:28256"
		
	## Save and exit
	ctrl+x --> y --> return
			
	#### Your bitcoind section should now look something like the following ####
	bitcoind:
	  image: "samouraiwallet/dojo-bitcoind:1.0.0"
	  container_name: bitcoind
	  build:
	    context: ./bitcoin
	  env_file:
	    - ./.env
	    - ./conf/docker-bitcoind.conf
	  restart: on-failure
	  command: "/wait-for-it.sh tor:9050 --timeout=360 --strict -- /restart.sh"
	  expose:
	    - "28256"
	    - "9501"
	    - "9502"
	  ports:
	    - "127.0.0.1:28256:28256"
	  volumes:
	    - data-bitcoind:/home/bitcoin/.bitcoin
	  depends_on:
	    - db
	    - tor
	  networks:
	    dojonet:
	      ipv4_address: 172.28.1.5



################# Installing Electrs (Electrum Personal Server made in the Rust programming language) ######################

## Reference the install guide found at https://github.com/romanz/electrs/blob/master/doc/usage.md
## in case there are changes from the following directions.

## Install needed packages
$ sudo apt-get update && sudo apt-get install clang cmake cargo

## Building Electrs
$ cd ~ && git clone https://github.com/romanz/electrs
$ cd electrs
$ cargo build --release

## Takes about 10-20 minutes

## After the build is complete, start your Dojo
$ cd /path/to/docker/my-dojo/ && sudo ./dojo.sh start

## Start Electrs and let it build it's index (took my VM about 5 hours),
## and as of today (June 2019) the size of the index is ~ 49G

*** Be sure to update the following command to reflect your Dojo RPC Username and RPC Password under the `--cookies=` flag ***
$ cd ~/electrs && cargo run --release -- -vvv --timestamp --db-dir ./db --electrum-rpc-addr="127.0.0.1:50001" --cookie="dojorpcuser:dojorpcpassword" --daemon-rpc-addr="127.0.0.1:28256" --jsonrpc-import



################################# Make a .desktop file while it's indexing for quicker launching! ##########################

## Open a new terminal
$ cd ~/electrs

## Download the app icon for your new .desktop file
$ wget https://www.weusecoins.com/images/company/electrum.png
$ mv electrum.png electrum_personal_server_logo.png

## Create the .desktop file
$ sudo nano /usr/share/applications/electrs.desktop

## Copy and paste the code below (between the --------------'s ), and make changes that are ***starred***, as well as your Dojo RPC Username and RPC Password under the `--cookies=` flag


Begining of electrs.desktop file
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
[Desktop Entry]
Encoding=UTF-8
Type=Application
Version=1.0
Terminal=false
Exec=gnome-terminal --title="Electrum Personal Server" --geometry=120x25 --zoom=0.8 -- bash -c 'cd /home/***your user name***/electrs/; cargo run --release -- -vvv --timestamp --db-dir ./db --electrum-rpc-addr="127.0.0.1:50001" --cookie="dojorpcuser:dojorpcpassword" --daemon-rpc-addr="127.0.0.1:28256" --jsonrpc-import
Name=Electrum Personal Server
Icon=/home/***your user name***/electrs/electrum_personal_server_logo.png
Name[en_US]=Electrum Personal Server
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
End of electrs.desktop file


## Save and exit
ctrl+x --> y --> return

## Now it should be in your Show Applications tray



################################### If you haven't installed Electrum Wallet yet ###########################################

## Import ThomasV's (Dev & signer of the Electrum Wallet) PGP key to your keyring
$ cd ~/Downloads && wget https://raw.githubusercontent.com/spesmilo/electrum/master/pubkeys/ThomasV.asc
$ sudo gpg --import ThomasV.asc
$ rm -rf ThomasV.asc

## In your browser, head over to https://electrum.org/#download
## Follow along the section `Installation from Python sources`
## I chose to `Install with PIP` over `Run without installing`, but it's your choice

## You'll have to reboot your machine after the install, but if Electrs is still building its index just leave
## it be until after it finishes as to not interrupt it

## After you reboot your machine, start electrum wallet from a teminal to generate ~/.electrum/ directory
$ electrum --oneserver --server localhost:50001:t

## Close it

## Change Electrum Wallet config to always run with those flags
$ electrum setconfig oneserver true
$ electrum setconfig server 127.0.0.1:50001:t

################################## Make a .desktop file for quicker Electrum Wallet launching! #############################

$ cd ~/.electrum

## Download the app icon for your new .desktop file
$ wget https://bitcoin.org/img/wallet/electrum.png
$ mv electrum.png electrum_logo.png

## Create the .desktop file
$ sudo nano /usr/share/applications/electrum-wallet.desktop

## Copy and paste the code below (between the --------------'s ), and make changes that are ***starred***

## If you chose to not `Install with PIP` and instead are running Electrum Wallet without insalling, modify
## the electrum-wallet.desktop `Exec=` portion to reflect that path to run the wallet. Be sure to keep the flags.


Begining of electrum-wallet.desktop file
----------------------------------------------------------------------------------------------------------------------------
[Desktop Entry]
Encoding=UTF-8
Version=1.0
Type=Application
Terminal=false
Exec=electrum --oneserver --server localhost:50001:t
Name=Electrum Wallet
Icon=/home/***your user name***/.electrum/electrum_logo.png
Name[en_US]=Electrum Wallet
----------------------------------------------------------------------------------------------------------------------------
End of electrum-wallet.desktop file


## Save and exit
ctrl+x --> y --> return

## Now it should be in your Show Applications tray


## Done