Merge pull request #100 from stepbeekio/feature/multiple-traefik-entrypoints

Added the docker options override configuration for traefik

lib/mrsk/commands/traefik.rb

@@ -10,6 +10,7 @@ class Mrsk::Commands::Traefik < Mrsk::Commands::Base
       "--log-opt", "max-size=#{MAX_LOG_SIZE}",
       "--publish", port,
       "--volume", "/var/run/docker.sock:/var/run/docker.sock",
+      *docker_options_args,
       "traefik",
       "--providers.docker",
       "--log.level=DEBUG",
@@ -54,6 +55,10 @@ class Mrsk::Commands::Traefik < Mrsk::Commands::Base
   end
 
   private
+    def docker_options_args
+      optionize(config.traefik["options"] || {})
+    end
+
     def cmd_option_args
       if args = config.traefik["args"]
         optionize args, with: "="

lib/mrsk/utils.rb

@@ -26,14 +26,19 @@ module Mrsk::Utils
   # Returns a list of shell-dashed option arguments. If the value is true, it's treated like a value-less option.
   def optionize(args, with: nil)
     options = if with
-      args.collect { |(key, value)| value == true ? "--#{key}" : "--#{key}#{with}#{escape_shell_value(value)}" }
+      flatten_args(args).collect { |(key, value)| value == true ? "--#{key}" : "--#{key}#{with}#{escape_shell_value(value)}" }
     else
-      args.collect { |(key, value)| [ "--#{key}", value == true ? nil : escape_shell_value(value) ] }
+      flatten_args(args).collect { |(key, value)| [ "--#{key}", value == true ? nil : escape_shell_value(value) ] }
     end
 
     options.flatten.compact
   end
 
+  # Flattens a one-to-many structure into an array of two-element arrays each containing a key-value pair
+  def flatten_args(args)
+    args.flat_map { |key, value| value.try(:map) { |entry| [key, entry] } || [ [ key, value ] ] }
+  end
+
   # Copied from SSHKit::Backend::Abstract#redact to be available inside Commands classes
   def redact(arg) # Used in execute_command to hide redact() args a user passes in
     arg.to_s.extend(SSHKit::Redaction) # to_s due to our inability to extend Integer, etc