Class: Kamal::Lint::Checks::TraefikLegacyKeys

Inherits:
Kamal::Lint::Check show all
Defined in:
lib/kamal/lint/checks/traefik_legacy_keys.rb

Instance Attribute Summary

Attributes inherited from Kamal::Lint::Check

#context

Instance Method Summary collapse

Methods inherited from Kamal::Lint::Check

applies_to?, autofixable, id, #initialize, severity, since, title, until_version

Constructor Details

This class inherits a constructor from Kamal::Lint::Check

Instance Method Details

#apply_fix(ctx) ⇒ Object 



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# File 'lib/kamal/lint/checks/traefik_legacy_keys.rb', line 23

def apply_fix(ctx)
  file = ctx.file_for_finding
  text = File.read(file)
  parsed = YAML.safe_load(text, aliases: true) || {}
  return false unless parsed.is_a?(Hash) && parsed.key?("traefik")

  traefik = parsed.delete("traefik") || {}
  proxy = parsed["proxy"] || {}

  # Conservative translation:
  # - traefik.host           → proxy.host
  # - traefik.ssl_redirect   → proxy.ssl: true (Kamal 2 handles SSL via proxy.ssl)
  # - traefik.args.entryPoints.address: ":<port>" → proxy.app_port: <port>
  if (host = traefik["host"]) && !proxy["host"]
    proxy["host"] = host
  end
  if traefik["ssl_redirect"] == true || traefik.dig("args", "entrypoints.websecure.address")
    proxy["ssl"] = true unless proxy.key?("ssl")
  end
  if (addr = traefik.dig("args", "entrypoints.web.address")) && addr.is_a?(String)
    port = addr.scan(/\d+/).first
    proxy["app_port"] = port.to_i if port && !proxy.key?("app_port")
  end

  parsed["proxy"] = proxy unless proxy.empty?
  File.write(file, YAML.dump(parsed))
  true
rescue => _e
  false
end

#call ⇒ Object 



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# File 'lib/kamal/lint/checks/traefik_legacy_keys.rb', line 13

def call
  return [] unless parsed.key?("traefik")

  [ finding(
    message: "`traefik:` block is Kamal 1.x legacy and is ignored in Kamal 2+; use `proxy:` instead",
    line: context.line_for([ "traefik" ]),
    autofix: method(:apply_fix)
  ) ]
end