Add 3DPrinter-Remote

3dprinter-remote/Dockerfile

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+ARG BUILD_FROM="ghcr.io/home-assistant/amd64-base"
+
+FROM ${BUILD_FROM} AS final
+
+ENV LANG C.UTF-8
+
+RUN echo "Install base requirements." \
+    && apk add --no-cache ser2net
+COPY rootfs/ /
+WORKDIR /
+
+# Make files executable
+RUN chmod +x /etc/cont-init.d/*.sh
+RUN chmod +x /etc/services.d/*/*

3dprinter-remote/README.md

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+# 3DPrinter-Remote
+
+Provides remote access to 3DPrinter. Add-on runs ser2net and can be connected to by e.g. socat.
+
+## Usage
+
+On the machine connected to the printer (`remote machine`):
+* Setup the add-on. At minimum you will need to specify `printer_path` and verify that `baud_rate` is correct.
+
+On the machine with OctoPrint:
+* Go to Settings --> Serial Connection, section __Additional serial ports__. Add : `socket://<remote machine>:9999`. For example, use the IP for `remote machine`.

3dprinter-remote/config.yaml

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+name: "3DPrinter-Remote"
+version: "2023.03.0"
+slug: "3dprinter-remote"
+description: "Add-on for accessing 3DPrinter remotely using socat"
+url: "https://github.com/fredrikbaberg/ha-3dprinter-addons/tree/main/3dprinter-remote"
+arch:
+    - armv7
+    - amd64
+    - armhf
+    - aarch64
+    - i386
+stage: experimental
+init: false
+gpio: true
+usb: true
+uart: true
+ports:
+    9999/tcp: 9999
+ports_description:
+    9999/tcp: Port for access to ser2net
+options:
+    printer_path: "/dev/null"
+    printer_baudrate: "115200"
+    ser2net_args: ""
+schema:
+    printer_path: "str"
+    printer_baudrate: "int"
+    ser2net_args: "str?"
+image: ghcr.io/fredrikbaberg/ha-addon-3dprinter-remote-{arch}

3dprinter-remote/rootfs/etc/cont-init.d/ser2net.sh

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+#!/usr/bin/with-contenv bashio
+# ==============================================================================
+# Add-on: 3dprinter-remote
+# Setup ser2net.conf
+# ==============================================================================
+
+# Generate ser2net configuration
+bashio::var.json \
+    printer_path "$(bashio::config 'printer_path')" \
+    printer_baudrate "$(bashio::config 'printer_baudrate')" \
+    ser2net_args "$(bashio::config 'ser2net_args')" \
+    | tempio \
+        -template /usr/share/tempio/ser2net/ser2net.conf.gtpl \
+        -out /etc/ser2net.conf

3dprinter-remote/rootfs/etc/services.d/ser2net/finish

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+#!/usr/bin/execlineb -S0
+# ==============================================================================
+# Add-on: mjpg-streamer
+# Take down the S6 supervision tree when mjpg-streamer fails
+# ==============================================================================
+if -n { s6-test $# -ne 0 }
+if -n { s6-test ${1} -eq 256 }
+
+s6-svscanctl -t /var/run/s6/services

3dprinter-remote/rootfs/etc/services.d/ser2net/run

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+#!/usr/bin/with-contenv bashio
+# ==============================================================================
+# Add-on: 3dprinter-remote
+# Runs ser2net
+# ==============================================================================
+
+bashio::log.info "Starting ser2net.."
+
+exec ser2net -d

3dprinter-remote/rootfs/usr/share/tempio/ser2net/ser2net.conf.gtpl

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+9999:raw:0:{{ .printer_path }}:{{ .printer_baudrate }} {{ .ser2net_args }}
+BANNER:banner1:Welcome to ser2net \rTCP port \p device \d\r