Octoprint

Octoprint

The 3D printer laptop is set up with Octoprint

Installing Octoprint

Unfortunately we don't have a lot of notes from the first time we set up Octoprint. These are the rough notes, they will be expanded and fleshed out when we set up Octoprint on the new 3D printer laptop.

Multiprinter setup howto:

http://thomas-messmer.com/index.php/14-free-knowledge/howtos/79-setting-up-octoprint-for-multiple-printers

https://discourse.octoprint.org/t/setting-up-octoprint-on-a-raspberry-pi-running-raspbian/2337/1

https://cbonte.github.io/haproxy-dconv/1.8/configuration.html

We were encountering a config error. The solution turned out to be that the use_backend test has to be defined on a separate line as an ACL.

The following links provided relevant information:

https://www.digitalocean.com/community/tutorials/an-introduction-to-haproxy-and-load-balancing-concepts

http://cbonte.github.io/haproxy-dconv/1.8/configuration.html#4-use_backend

https://www.digitalocean.com/community/tutorials/how-to-use-haproxy-as-a-layer-7-load-balancer-for-wordpress-and-nginx-on-ubuntu-14-04

https://www.haproxy.com/blog/web-application-name-to-backend-mapping-in-haproxy/

The final, working config file is:

global

       maxconn 4096
       user haproxy
       group haproxy
       daemon
       log /dev/log local0

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
       option forwardfor except 127.0.0.1
       acl jeremy path_beg /jeremy_i3
       acl jesse path_beg /jesse_i3
       use_backend jeremy_i3 if jeremy
       use_backend jesse_i3 if jesse
       default_backend jeremy_i3

backend jesse_i3

       reqrep ^([^\ :]*)\ /jesse_i3/(.*)     \1\ /\2
       option forwardfor
       server octoprint1 127.0.0.1:5001
       acl needs_scheme req.hdr_cnt(X-Scheme) eq 0
       reqadd X-Scheme:\ https if needs_scheme { ssl_fc }
       reqadd X-Script-Name:\ /jesse_i3

backend jeremy_i3 reqrep ^([^\ :]*)\ /jeremy_i3/(.*) \1\ /\2

       option forwardfor
       server octoprint1 127.0.0.1:5000
       acl needs_scheme req.hdr_cnt(X-Scheme) eq 0
       reqadd X-Scheme:\ https if needs_scheme { ssl_fc }
       reqadd X-Scheme:\ http if needs_scheme !{ ssl_fc }
       reqadd X-Script-Name:\ /jeremy_i3

---