So, I'm trying to implement the fail2ban plugin in my setup, and I keep having difficulties with translating the YAML example to a TOML equivalent. I just don't know how to properly format TOML in order to get the regexp rules in place.
The YAML example given is as follows
rules:
urlregexps:
- regexp: "/whoami"
mode: allow
- regexp: "/do-not-access"
mode: block
bantime: "3h"
findtime: "10m"
maxretry: 4
enabled: true
The TOML example doesn't contain the urlregexps however:
[http.middlewares.my-fail2ban.plugin.fail2ban.rules]
bantime = "3h"
enabled = "true"
findtime = "10m"
maxretry = "4"
How can I fit the regexps into this TOML format? Maybe I'm missing some good examples somewhere in the Traefik documentation, or I might be stupid to use TOML in the first place 
Why not use yaml? Have you tried an "AI" to translate the yaml to toml?
I think YAML is finnicky and I have my current config written in TOML, so I am hestiant to commit to a complete switcharoo.
The AI translation option is a nice one, however. Let's see what chatGPT thinks of this. Thanks for the tip!
So, I conviced GPT-4 that is was an YAML and TOML expert and it came with the following solution:
Sure. This is how you would write it in TOML:
[rules]
[[rules.urlregexps]]
regexp = "/whoami"
mode = "allow"
[[rules.urlregexps]]
regexp = "/do-not-access"
mode = "block"
bantime = "3h"
findtime = "10m"
maxretry = 4
enabled = true
In TOML, brackets [...] denote sections (like keys in YAML), double brackets [[...]] denote arrays of tables (like lists of dictionaries in YAML), and regular key = value lines correspond to key-value pairs. Booleans (true/false) and numbers (like maxretry = 4) are written the same way in both formats.
I hope that's clear! Please let me know if you need more help with configuration files.
Thanks for the tip @bluepuma77
