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--- bdev:octoprint_setup [2021/09/28 15:54]
richard
+++ bdev:octoprint_setup [2021/10/28 15:25] (current)
richard
@@ Line 1: / Line 1: @@
 ====== Octoprint ======
+\\
+The problem with installing manually is if you want to use the Arducam motorized focus camera.
 **Installing manually**
@@ Line 12: / Line 19: @@
 /path/to/OctoPrint/bin/octoprint serve
+https://community.octoprint.org/t/setting-up-octoprint-on-a-raspberry-pi-running-raspbian-or-raspberry-pi-os/2337
+\\
+**Basic Installation**\\
+<code>
+cd ~
+sudo apt update
+sudo apt install python3-pip python3-dev python3-setuptools python3-venv git libyaml-dev build-essential
+mkdir OctoPrint && cd OctoPrint
+python3 -m venv venv
+source venv/bin/activate
+</code>
+OctoPrint and it's Python dependencies can then be installed using pip: \\
+<code>
+pip install pip --upgrade
+pip install octoprint
+</code>
+**Note**
+<code>
+If this installs an old version of OctoPrint, pip probably still has something cached. In that case add --no-cache-dir to the install command, e.g.
+pip install --no-cache-dir octoprint
+To make this permanent, clean pip's cache:
+rm -r ~/.cache/pip
+</code>
+**Starting the server for the first time**\\
+<code>
+pi@raspberrypi:~ $ ~/OctoPrint/venv/bin/octoprint serve
+-11-03 17:39:17,979 - octoprint.startup - INFO - ***************************
+-11-03 17:39:17,980 - octoprint.startup - INFO - Starting OctoPrint 1.4.2
+-11-03 17:39:17,980 - octoprint.startup - INFO - ***************************
+</code>
+**Automatic start up**\\
+Download the init script files from OctoPrint's repository, move them to their respective folders and make the init script executable:\\
+<code>
+wget https://github.com/OctoPrint/OctoPrint/raw/master/scripts/octoprint.service && sudo mv octoprint.service /etc/systemd/system/octoprint.service
+</code>
+Adjust the paths to your octoprint binary in /etc/systemd/system/octoprint.service. If you set it up in a virtualenv as described above make sure your\\
+///etc/systemd/system/octoprint.service// looks like this:
+<code>
+ExecStart=/home/pi/OctoPrint/venv/bin/octoprint
+</code>
+Then add the script to autostart using //sudo systemctl enable octoprint.service//.
+This will also allow you to start/stop/restart the OctoPrint daemon via\\
+<code>
+sudo service octoprint {start|stop|restart}
+</code>
+\\
+**Make everything accessible on port 80**
+If you want to have nicer URLs or simply need OctoPrint to run on port 80 (http's default port) due to some network restrictions, I recommend using HAProxy 593 as a reverse proxy instead of configuring OctoPrint to run on port 80. This has the following advantages:\\
+  * OctoPrint does not need to run with root privileges, which it would need to to be able to bind to port 80 thanks to Linux privileged port restrictions
+  * You can make mjpg-streamer accessible on port 80 as well
+  * You can add authentication to OctoPrint
+  * Depending on the HAProxy version you can also use SSL to access OctoPrint
+Setup on Raspbian is as follows:
+<code>
+pi@raspberrypi ~ $ sudo apt install haproxy
+</code>
+I'm using the following configuration in /etc/haproxy/haproxy.cfg, for further examples take a look at the post here 385:\\
+<code>
+global
+        maxconn 4096
+        user haproxy
+        group haproxy
+        daemon
+        log 127.0.0.1 local0 debug
+defaults
+        log     global
+        mode    http
+        option  httplog
+        option  dontlognull
+        retries 3
+        option redispatch
+        option http-server-close
+        option forwardfor
+        maxconn 2000
+        timeout connect 5s
+        timeout client  15min
+        timeout server  15min
+frontend public
+        bind :::80 v4v6
+        use_backend webcam if { path_beg /webcam/ }
+        default_backend octoprint
+backend octoprint
+        reqrep ^([^\ :]*)\ /(.*)     \1\ /\2
+        option forwardfor
+        server octoprint1 127.0.0.1:5000
+backend webcam
+        reqrep ^([^\ :]*)\ /webcam/(.*)     \1\ /\2
+        server webcam1  127.0.0.1:8080
+</code>
+This will make OctoPrint accessible under http://<your Raspi's IP>/ and make mjpg-streamer accessible under http://<your Raspi's IP>/webcam/. You'll also need to modify /etc/default/haproxy and enable HAProxy by setting ENABLED to 1. After that you can start HAProxy by issuing the following command
+\\
+<code>
+sudo service haproxy start
+</code>
+Pointing your browser to http://<your Raspi's IP> should greet you with OctoPrint's UI. Now open the settings and switch to the webcam tab or alternatively open ~/.octoprint/config.yaml. Set the webcam's stream URL from http://<your Raspi's IP>:8080/?action=stream to /webcam/?action=stream (leave the snapshotUrl at http://127.0.0.1:8080/?action=snapshot!) and reload the page.
+\\
+If everything works you can add the following lines to ~/.octoprint/config.yaml (just create it if it doesn't exist yet) to make the server bind only to the loopback interface:
+\\
+<code>
+server:
+    host: 127.0.0.1
+</code>
+Restart the server. OctoPrint should still be available on port 80, including the webcam feed (if enabled).
+\\
+**Updating & changing release channels & rolling back**
+\\
+OctoPrint should offer to update itself automatically and also allow you to switch to other Release Channels out of the box.\\
+If for whatever reason you want or need to perform any of this manually however, perform the following commands to install <version> of OctoPrint\\
+<code>
+source ~/OctoPrint/venv/bin/activate
+pip install octoprint==<version>
+</code>
+e.g.
+<code>
+source ~/OctoPrint/venv/bin/activate
+pip install octoprint==1.4.0
+</code>
+\\
+**Support restart/shutdown through OctoPrint's system menu**
+\\
+In the UI, under Settings > Commands, configure the following commands:
+  * Restart OctoPrint: //sudo service octoprint restart//
+  * Restart system: //sudo shutdown -r now//
+  * Shutdown system: //sudo shutdown -h now//
+**Optional: Webcam**\\
+If you also want webcam and timelapse support, you'll need to download and compile MJPG-Streamer:
+\\
+<code>
+cd ~
+sudo apt install subversion libjpeg62-turbo-dev imagemagick ffmpeg libv4l-dev cmake
+git clone https://github.com/jacksonliam/mjpg-streamer.git
+cd mjpg-streamer/mjpg-streamer-experimental
+export LD_LIBRARY_PATH=.
+make
+</code>
+\\
+<code>
+Heads-up
+The required packages depend on the underlying version of Debian! The above is what should work on the current Debian Stretch or Buster based images of Raspbian.
+For Jessie use:
+sudo apt install subversion libjpeg62-turbo-dev imagemagick libav-tools libv4l-dev cmake
+For Wheezy or older (you should update...) use:
+sudo apt install subversion libjpeg8-dev imagemagick libav-tools libv4l-dev cmake
+</code>
+This should hopefully run through without any compilation errors. You should then be able to start the webcam server using:\\
+<code>
+./mjpg_streamer -i "./input_uvc.so" -o "./output_http.so"
+</code>
+For some webcams (including the PS3 Eye) you'll need to force the YUV mode by using the following start command:\\
+<code>
+./mjpg_streamer -i "./input_uvc.so -y" -o "./output_http.so"
+</code>

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