qusal/salt/sys-electrs/README.md

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# sys-electrs
Electrs in Qubes OS.
## Table of Contents
* [Description](#description)
* [Installation](#installation)
* [Usage](#usage)
* [Credits](#credits)
## Description
Setup an offline Electrs (Electrum Server) qube named "sys-electrs",
connected to your own full node running on "sys-bitcoin" to index the
blockchain to allow for efficient query of the history of arbitrary addresses.
A disposable qube "disp-electrs-builder" will be created, it will serve to
install and verify Electrs. After the verification succeeds, files are copied
to the template "tpl-sys-electrs". This method was chosen so the server can be
always offline.
At least `200GB` of disk space is required.
## Installation
This formula depends on [sys-bitcoin](../sys-bitcoin/README.md).
- Top:
```sh
sudo qubesctl top.enable sys-electrs
sudo qubesctl --targets=tpl-electrs-builder,tpl-sys-electrs,disp-electrs-builder,sys-electrs state.apply
sudo qubesctl top.disable sys-electrs
sudo qubesctl state.apply sys-electrs.appmenus
```
- State:
<!-- pkg:begin:post-install -->
```sh
sudo qubesctl state.apply sys-electrs.create
sudo qubesctl --skip-dom0 --targets=tpl-electrs-builder state.apply sys-electrs.install-builder
sudo qubesctl --skip-dom0 --targets=tpl-sys-electrs state.apply sys-electrs.install
sudo qubesctl --skip-dom0 --targets=disp-electrs-builder state.apply sys-electrs.configure-builder
sudo qubesctl --skip-dom0 --targets=sys-electrs state.apply sys-electrs.configure
sudo qubesctl state.apply sys-electrs.appmenus
```
<!-- pkg:end:post-install -->
## Usage
You may customize Electrs by writing to the file
`~/.electrs/conf.d/electrs.conf.local`.
If you are not using [sys-bitcoin](../sys-bitcoin/README.md), you will need to
add the RPC Authentication cookie to the qube `sys-electrs` in the file
`~/.bitcoin/.cookie`. Make sure there is no new line at the end of the cookie
file, else Electrs will fail to start.
## Credits
- [qubenix](https://github.com/qubenix/qubes-whonix-bitcoin)