nixos-modules/microvm/virtiofsd/default: replace string-templating supervisordConfigFile with generators.toINI

Author: astro

nixos-modules/microvm/virtiofsd/default.nix

@@ -19,46 +19,54 @@ in
   microvm.binScripts = lib.mkIf requiresVirtiofsd {
     virtiofsd-run =
       let
-        supervisordConfig = pkgs.writeText "${config.networking.hostName}-virtiofsd-supervisord.conf" ''
-          [supervisord]
-          nodaemon=true
+        supervisordConfig = {
+          supervisord.nodaemon = true;
 
-          [eventlistener:notify]
-          command=${pkgs.writers.writePython3 "supervisord-event-handler" { } (
-                 pkgs.substituteAll {
-                   src = ./supervisord-event-handler.py;
-                   virtiofsdCount = builtins.length virtiofsShares;
-                 }
-               )}
-          events=PROCESS_STATE
+          "eventlistener:notify" = {
+            command = pkgs.writers.writePython3 "supervisord-event-handler" { } (
+              pkgs.substituteAll {
+                src = ./supervisord-event-handler.py;
+                virtiofsdCount = builtins.length virtiofsShares;
+              }
+            );
+            events = "PROCESS_STATE";
+          };
+        } // builtins.listToAttrs (
+          map ({ proto, tag, socket, source, ... }: {
+            name = "program:virtiofsd-${tag}";
+            value = {
+              stderr_syslog = true;
+              stdout_syslog = true;
+              autorestart = true;
+              command = pkgs.writeShellScript "virtiofsd-${tag}" ''
+                if [ $(id -u) = 0 ]; then
+                  OPT_RLIMIT="--rlimit-nofile 1048576"
+                else
+                  OPT_RLIMIT=""
+                fi
+                exec ${lib.getExe pkgs.virtiofsd} \
+                  --socket-path=${lib.escapeShellArg socket} \
+                  --socket-group=${group} \
+                  --shared-dir=${lib.escapeShellArg source} \
+                  $OPT_RLIMIT \
+                  --thread-pool-size ${toString config.microvm.virtiofsd.threadPoolSize} \
+                  --posix-acl --xattr \
+                  ${lib.optionalString (config.microvm.virtiofsd.inodeFileHandles != null)
+                    "--inode-file-handles=${config.microvm.virtiofsd.inodeFileHandles}"
+                  } \
+                  ${lib.concatStringsSep " " config.microvm.virtiofsd.extraArgs}
+              '';
+            };
+          }) virtiofsShares
+        );
+
+        supervisordConfigFile =
+          pkgs.writeText "${config.networking.hostName}-virtiofsd-supervisord.conf" (
+            lib.generators.toINI {} supervisordConfig
+          );
 
-          ${lib.concatMapStrings ({ proto, tag, socket, source, ... }: ''
-            [program:virtiofsd-${tag}]
-            stderr_syslog=true
-            stdout_syslog=true
-            autorestart=true
-            command=${pkgs.writeShellScript "virtiofsd-${tag}" ''
-              if [ $(id -u) = 0 ]; then
-                OPT_RLIMIT="--rlimit-nofile 1048576"
-              else
-                OPT_RLIMIT=""
-              fi
-              exec ${lib.getExe pkgs.virtiofsd} \
-                --socket-path=${lib.escapeShellArg socket} \
-                --socket-group=${group} \
-                --shared-dir=${lib.escapeShellArg source} \
-                $OPT_RLIMIT \
-                --thread-pool-size ${toString config.microvm.virtiofsd.threadPoolSize} \
-                --posix-acl --xattr \
-                ${lib.optionalString (config.microvm.virtiofsd.inodeFileHandles != null)
-                  "--inode-file-handles=${config.microvm.virtiofsd.inodeFileHandles}"
-                 } \
-                ${lib.concatStringsSep " " config.microvm.virtiofsd.extraArgs}
-              ''}
-          '' ) virtiofsShares}
-        '';
       in ''
-        exec ${supervisord} --configuration ${supervisordConfig}
+        exec ${supervisord} --configuration ${supervisordConfigFile}
       '';
 
     virtiofsd-reload = ''