Support escaping dots in label keys with \.#784
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lucaslorentz merged 1 commit intomasterfrom Mar 12, 2026
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The dot character is used as a nesting separator in Docker label keys,
making it impossible to use literal dots in directive names (e.g.
domain names like mydomain.fr or Caddy's {blocks.name} syntax).
This adds support for \. as an escaped literal dot, so:
caddy.dynamic_dns.domains.mydomain\.fr
produces:
dynamic_dns { domains { mydomain.fr } }
Fixes #767
Fixes #699
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This was referenced Mar 12, 2026
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Summary
\.as an escaped literal dot in Docker label keys.character is used as a nesting separator, which prevented using literal dots in directive names (e.g. domain names likemydomain.fror Caddy's{blocks.name}syntax)\.is replaced before regex parsing and restored as.in the directive nameExamples
Caddy blocks syntax (#767):
produces:
Domain names (#699):
produces:
Fixes #767
Fixes #699
Test plan
escaped_dots.txtcovers both use cases🤖 Generated with Claude Code