Starting with OctoPrint 1.5.0, OctoPrint makes enabled access control mandatory. This might be an inconvience for some who run OctoPrint in an isolated setup where a login is not required to ensure security, at a benefit for a huge number of users out there who continue to underestimate or simply ignore the risk of keeping their OctoPrint instance unsecured and then happily exposing it on the public internet. And frankly, it will also make me sleep better at night.
That being said, even as far back as OctoPrint 1.0.0 (released in 2013) there has existed a way to have OctoPrint automatically log you in, if you connect from a trusted local network address. This functionality has not been exposed on the UI, and for now also won't be (to make it a bit harder to once again create an insecure setup for those who simply won't listen to common sense), but it's easy to set up with a bit of configuration editing.
When set up properly, it will make sure to automatically log you in as a configured user whenever you connect from a device on your local network. To get back pretty much the same behaviour as with disabled access control, you'll only need to create a single (admin) account and then set up autologin for it.
Do not do this if you cannot trust EVERYONE on your local network. And I really mean everyone. If you ignore this and then someone takes over your OctoPrint instance, installs malware on it and makes your printer print an endless stream of benchies, that's on you.
The easy way: Using the OctoPrint-AutoLoginConfig plugin
Install the following plugin via the plugin manager:
Open its settings and follow the instructions on the screen.
The hard way: Manual editing of config.yaml
Preparation
First of all, read the YAML primer in the docs please - you will have to edit OctoPrint's main configuration file, and thus should make sure you understand at least roughly how things work and that you should keep your hands off the Tab key. If you don't, you might break your config file, and while I'll tell you to make a backup, this still can be easily avoided by educating yourself on the DOs and DONTs first.
Then, take a look at the docs on config.yaml and where to find that central configuration file of OctoPrint:
If not specified via the command line, the main configuration file
config.yamlfor OctoPrint is expected in its settings folder, which unless defined differently via the command line is located at~/.octoprinton Linux, at%APPDATA%/OctoPrinton Windows and at~/Library/Application Support/OctoPrinton macOS.
Next you need to collect some information. In order to enable autologin, we'll need to know
-
The username you want to automatically get logged in as - that is what you use for logging into OctoPrint's web interface. This will be what you put where it says
<yourUsername>below. -
The ip address range of your LAN - sounds scary, but actually isn't. Just figure out your PC's IP address and subnet mask and then combine both with a
/in between. -
On OctoPi (or another Linux distribution) you can use the following command:
ip route | grep -P 'eth0|wlan0' | awk '{print $1}'or for IPV6:
ip -6 route | grep -P 'eth0|wlan0' | awk '{print $1}'This will be what you put where it says
<yourAddressRange>below.E.g.: Your PC has an IP address of
192.168.23.42and a subnet mask of255.255.255.0. Your address range is192.168.23.42/255.255.255.0.
Configuration
Ready? Let's do some editing then. I'll outline what to do and where first, and then further down there's also a dedicated list of steps for OctoPi specifically.
- Shutdown OctoPrint
- Make a backup of your
config.yaml. - Open it in a text editor (e.g.
nano). Right at the very top it'll say something like this:
Add to this a bunch of lines so it looks like this (make absolutely sure to not touch theaccessControl: salt: aabbccddee1234523452345saltline!):accessControl: salt: aabbccddee1234523452345 autologinLocal: true autologinAs: "<yourUsername>" localNetworks: - "127.0.0.0/8" - "<yourAddressRange>" - Restart OctoPrint, check that everything works.
This will automatically log you in as the user you specified whenever you connect to OctoPrint from an address in the address range (e.g. a device on your local network).
OctoPi specific steps
If you are running OctoPi you will have to SSH into your Raspberry Pi (username: pi, default password: raspberry, but you hopefully changed that - if not, do so right away please via sudo raspi-config!). Then:
sudo service octoprint stopcp ~/.octoprint/config.yaml ~/.octoprint/config.yaml.back-
nano ~/.octoprint/config.yaml, make the edits as described above sudo service octoprint start
If something went wrong, you can restore the config backup with
cp ~/.octoprint/config.yaml.back ~/.octoprint/config.yaml
Taking down post.