moonraker/docs/installation.md

## Installation

This document provides a guide on how to install Moonraker on a Raspberry
Pi running Raspian/Rasperry Pi OS.  Other SBCs and/or linux distributions
may work, however they may need a custom install script.  Moonraker
requires Python 3.7 or greater, verify that your distribution's
Python 3 packages meet this requirement.

Klipper should be installed prior to installing Moonraker.  Please see
[Klipper's Documention](https://github.com/KevinOConnor/klipper/blob/master/docs/Installation.md)
for instructions on how to do this.

After Klipper is installed, you need to modify its "default" file.  This file
contains klipper's command line arguments, and you must add an argument that
instructs Klippy to create a Unix Domain socket:
```
sudo nano /etc/default/klipper
```
You should see a file that looks something like the following:
```
# Configuration for /etc/init.d/klipper

KLIPPY_USER=pi

KLIPPY_EXEC=/home/pi/klippy-env/bin/python

KLIPPY_ARGS="/home/pi/klipper/klippy/klippy.py /home/pi/printer.cfg -l /tmp/klippy.log"
```

You need to add `-a /tmp/klippy_uds` to KLIPPY_ARGS:
```
# Configuration for /etc/init.d/klipper

KLIPPY_USER=pi

KLIPPY_EXEC=/home/pi/klippy-env/bin/python

KLIPPY_ARGS="/home/pi/klipper/klippy/klippy.py /home/pi/printer.cfg -l /tmp/klippy.log -a /tmp/klippy_uds"
```
You may also want to take this opportunity to change the location of
printer.cfg if you enable Moonraker's "config_path" option (see the
[configuration section](#moonraker-configuration-moonrakerconf) for more information).

You can now install the Moonraker application:
```
cd ~
git clone https://github.com/Arksine/moonraker.git
```

Finally, run moonraker's install script:
```
cd ~/moonraker/scripts
./install-moonraker.sh
```

The install script has a few command line options that may be useful,
particularly for those upgrading:
- -r\
  This will rebuild the virtual environment for existing installations.
  Sometimes this is necessary when a dependency has been added.
- -f\
  This will tell the script to overwrite Moonraker's "defaults" file.
  By default the script will not modify the "defaults" file if it is
  detected as present.
- -c /path/to/moonraker.conf\
  This allows the user to specify the path to Moonraker's config file.
  The default location is "/home/<user>/moonraker.conf".

When the script completes it should start both Moonraker and Klipper. In
`klippy.log` you should find the following entry:\
`webhooks: New connection established`

Now you may install a client, such as [Mainsail](
https://github.com/meteyou/mainsail).
- Note that as of the time of this writing (August 11 2020) the current version
  of Mainsail (0.1.2) is not compatible with this repo.  Please give the
  developer some time to bring up Mainsail in line with the latest release
  of Moonraker.

# Configuration

## Command line
The configuration and log file paths may be specified via the command
line.
```
usage: moonraker.py [-h] [-c <configfile>] [-l <logfile>]

Moonraker - Klipper API Server

optional arguments:
  -h, --help            show this help message and exit
  -c <configfile>, --configfile <configfile>
                        Location of moonraker configuration file
  -l <logfile>, --logfile <logfile>
                        log file name and location
```

The default configuration is:
- config file - `~/moonraker.conf`
- log file - `/tmp/moonraker.log`

It is recommended to use the defaults, however one may change these
arguments by editing `/etc/default/moonraker`.

## Klipper configuration (printer.cfg)

Moonraker depends on the following Klippy extras for full functionality:
- [virtual_sdcard]
- [pause_resume]
- [display_status]

If you have a `filament_switch_sensor` configured then `pause_resume` will
automatically be loaded.  Likewise, if you have a `display` configured then
`display_status` will be automatically loaded.  If your configuration is
missing one or both, you can simply add the bare sections to printer.cfg:
```
[pause_resume]

[display_status]

[virtual_sdcard]
path: ~/gcode_files
```
NOTES:
- While Klipper does not set any hard limits on the location of the
  `path` option for the `virtual_sdcard`, Moonraker requires that the path
  be located within the HOME directory, it cannot however be the HOME
  directory.  If you wish to host your files elsewhere, use a symlink.
- Upon first starting Moonraker is not aware of the gcode file path, thus
  it cannot serve gcode files, add directories, etc.  After Klippy enters
  the "ready" state it sends Moonraker the gcode file path.
  Once Moonraker receives the path it will retain it regardless of Klippy's
  state, and update it if the path is changed in printer.cfg.

## Moonraker configuration (moonraker.conf)

All other configuration is done via `moonraker.conf`.  If you are
familiar with Klipper, the configuration is similar.  A basic
configuration might look like the following:
```
[server]
host: 0.0.0.0
port: 7125
enable_debug_logging: True
config_path: ~/.klippy_config

[authorization]
enabled: True
trusted_clients:
 192.168.1.0/24
```

Note that while all items in the `[server]` and `[authorization]`
sections have default values, the sections must be present for
moonraker to start. Aside from the `config_path` and `trusted_clients`
options it is recommended to use default values.

Below is a detailed explanation of all options currently available:
```
[server]
host: 0.0.0.0
#  The host address in which to bind the HTTP server.  Default is to bind
#  to all interfaces
port: 7125
#   The port the HTTP server will listen on.  Default is 7125
klippy_uds_address: /tmp/klippy_uds
#   The address of Unix Domain Socket used to communicate with Klippy. Default
#   is /tmp/klippy_uds
max_upload_size: 200
#   The maximum size allowed for a file upload.  Default is 200 MiB.
enable_debug_logging: True
#   When set to True Moonraker will log in verbose mode.  During this stage
#   of development the default is True.  In the future this will change.
config_path:
#   An optional path where configuration files are located. If specified,
#   Moonraker will serve this path allowing file and directory manipulation
#   within it. This path must be located within the user's HOME directory,
#   by may not be the home directory itself. The default is no path, which
#   results in no configuration files being served.

[authorization]
enabled: True
#   Enables authorization.  When set to true, requests must either contain
#   a valid API key or originate from a trusted client. Default is True.
api_key_file: ~/.moonraker_api_key
#   Path of the file that stores Moonraker's API key.  The default is
#   ~/.moonraker_api_key
trusted_clients:
 192.168.1.30
 192.168.1.0/24
#   A list of newline separated ip addresses and/or ip ranges that are
#   trusted. Trusted clients are given full access to the API.  Both IPv4
#   and IPv6 addresses and ranges are supported. Ranges must be expressed
#   in CIDR notation (see http://ip.sb/cidr for more info).  For example, an
#   entry of 192.168.1.0/24 will authorize IPs in the range of 192.168.1.1 -
#   192.168.1.254.  Note that when specifying IPv4 ranges the last segment
#   of the ip address must be 0. The default is no clients or ranges are
#   trusted.
cors_domains:
  http://klipper-printer.local
  http://second-printer.local:7125
#   Enables CORS for the specified domains.  One may specify * if they wish
#   to allow all domains.
```

For the moment, you need to restart the moonraker service to load a new
configuration:
```
sudo service moonraker restart
```

### Plugin Configuration
The core plugins are configured via the primary configuration above.  Optional
plugins each need their own configuration as outlined below.

#### PanelDue Plugin
```
[paneldue]
serial:
#   The serial port in which the PanelDue is connected.  This parameter
#   must be provided.
baud: 57600
#   The baud rate to connect at.  The default is 57600 baud.
machine_name: Klipper
#   An optional unique machine name which displays on the PanelDue's
#   Header.  The default is "Klipper".
macros:
 LOAD_FILAMENT
 UNLOAD_FILAMENT
 PANELDUE_BEEP FREQUENCY=500 DURATION=1
#   A list of newline separated "macros" that are displayed in the
#   PanelDue's "macros" tab.  These can be gcode macros or simple
#   gcodes.  A macro may contain parameters.  The default is no
#   macros will be displayed by the PanelDue.
confirmed_macros:
  RESTART
  FIRMWARE_RESTART
#  Like the "macros" option, this list is added to the macros tab.
#  When one of these macros is excuted the PanelDue will prompt
#  the user with a confirmation dialog.  The default is to include
#  RESTART and FIRMWARE_RESTART.
```

Most options above are self explanatory.  The "macros" option can be used
to specify commands (either built in or gcode_macros) that will show up
in the PanelDue's "macro" menu.

Note that buzzing the piezo requires the following gcode_macro in `printer.cfg`:
```
[gcode_macro PANELDUE_BEEP]
# Beep frequency
default_parameter_FREQUENCY: 300
# Beep duration in seconds
default_parameter_DURATION: 1.
gcode:
  {action_call_remote_method("paneldue_beep",
                             frequency=FREQUENCY|int,
                             duration=DURATION|float)}
```

#### Power Control Plugin
Power Plugin Configuration.  One may use this module to toggle the
state of a relay using a linux GPIO, enabling the ability to power
a printer on/off regardless of Klippy's state.  GPIOs are toggled
using libgpiod.  A configuration section should be added for each
device as shown below:
```
[power device_name]
type: gpio
#   The type of device.  Can be either gpio, tplink_smartplug or tasmota.
#   This parameter must be provided.
pin: gpiochip0/gpio26
#   The pin to use for GPIO devices.  The chip is optional, if left out
#   then the module will default to gpiochip0.  If one wishes to invert
#   the signal, a "!" may be prefixed to the pin.  Valid examples:
#      gpiochip0/gpio26
#      gpio26
#      !gpiochip0/gpio26
#      !gpio26
#    This parameter must be provided for "gpio" type devices
address:
port:
#   The above options are used for "tplink_smartplug" devices.  The
#   address should be a valid ip or hostname for the tplink device.
#   The port should be the port the device is configured to use.  The
#   address must be provided. The port defaults to 9999.
address:
password:
output_id:
#   The above options are used for "tasmota" devices.  The
#   address should be a valid ip or hostname for the tasmota device.
#   Provide a password if configured in Tasmota (default is empty). 
#   Provided an output_id (relay id) if the Tasmota device supports
#   more than one (default is 1).

```
Below are some potential examples:
```
[power printer]
type: gpio
pin: gpio26

[power printer_led]
type: gpio
pin: !gpiochip0/gpio16

[power wifi_switch]
type: tplink_smartplug
address: 192.168.1.123

[power tasmota_plug]
type: tasmota
address: 192.168.1.124
password: password1
```

It is possible to toggle device power from the Klippy host, this can be done
with a gcode_macro, such as:
```
[gcode_macro POWER_OFF_PRINTER]
gcode:
  {action_call_remote_method("set_device_power",
                             device="printer",
                             state="off")}
```
The `POWER_OFF_PRINTER` gcode can be run to turn off the "printer" device.
This could be used in conjunction with Klipper's idle timeout to turn the
printer off when idle with a configuration similar to that of below:
```
[delayed_gcode delayed_printer_off]
initial_duration: 0.
gcode:
  {% if printer.idle_timeout.state == "Idle" %}
    POWER_OFF_PRINTER
  {% endif %}

[idle_timeout]
gcode:
  TURN_OFF_MOTORS
  TURN_OFF_HEATERS
  UPDATE_DELAYED_GCODE ID=delayed_printer_off DURATION=60
```