How to Escape Slash in YAML Key?

Help
1

OpenTelemetry Collector’s configuration format requires forward slashes in dictionary keys, as can be seen in its docs. NixOS generates this config file using pkgs.formats.yaml, as the services.opentelemetry-collector.settings option. Unlike YAML however, in Nix the forward slash is a special character and so it cannot trivially be used in a key of an attribute set. Is there any way to work around this and generate a YAML file with forward slashes in its keys?

2 
# fails with error: syntax error, unexpected PATH
nix-instantiate --eval -E '{ /tomato = "soup";  }./tomato'

#returns "soup"
nix-instantiate --eval -E '{ "/tomato" = "soup";  }."/tomato"'

putting key name under “” works for me in nix repl, did you try that already?

2 Likes
3

Yes this seems to work — I didn’t realise this was an option but it seems obvious now. Thanks.

2 Likes