fix self stuff in container.nix

Signed-off-by: lucasew <lucas59356@gmail.com>

container.nix

@@ -1,46 +1,47 @@
 { dockerTools
 , python3Packages
 , lib
-, self
 , fontconfig
 }:
 
-dockerTools.streamLayeredImage {
-  name = "fusionsolar-bot";
-  tag = "${builtins.readFile ./version.txt}-${self.shortRev or self.dirtyShortRev}";
-  maxLayers = 2;
+let
+self = dockerTools.streamLayeredImage {
+    name = "fusionsolar-bot";
+    tag = "${builtins.readFile ./version.txt}-${self.shortRev or self.dirtyShortRev}";
+    maxLayers = 2;
 
-  contents = [
-    dockerTools.binSh
-    (dockerTools.fakeNss.override {
-      extraPasswdLines = ["user:x:1000:1000:new user:/tmp:/bin/sh"];
-      extraGroupLines = ["user:x:1000:"];
-    })
-  ];
+    contents = [
+      dockerTools.binSh
+      (dockerTools.fakeNss.override {
+        extraPasswdLines = ["user:x:1000:1000:new user:/tmp:/bin/sh"];
+        extraGroupLines = ["user:x:1000:"];
+      })
+    ];
 
-  extraCommands = ''
-    mkdir -m777 -p tmp etc dev/shm
-  '';
+    extraCommands = ''
+      mkdir -m777 -p tmp etc dev/shm
+    '';
 
-  uid = 1000;
-  gid = 1000;
-  uname = "user";
-  gname = "user";
+    uid = 1000;
+    gid = 1000;
+    uname = "user";
+    gname = "user";
 
-  config = {
-    Entrypoint = [
-      (lib.getExe (python3Packages.callPackage ./package.nix {}))
-      "--headless"
-    ];
-    User = "user";
-    Env = [
-      "HOME=/tmp"
-      "LANGUAGE=en_US"
-      "UID=1000"
-      "GID=1000"
-      "TZ=UTC"
-      "FONTCONFIG_FILE=${fontconfig.out}/etc/fonts/fonts.conf"
-      "FONTCONFIG_PATH=${fontconfig.out}/etc/fonts/"
-    ];
+    config = {
+      Entrypoint = [
+        (lib.getExe (python3Packages.callPackage ./package.nix {}))
+        "--headless"
+      ];
+      User = "user";
+      Env = [
+        "HOME=/tmp"
+        "LANGUAGE=en_US"
+        "UID=1000"
+        "GID=1000"
+        "TZ=UTC"
+        "FONTCONFIG_FILE=${fontconfig.out}/etc/fonts/fonts.conf"
+        "FONTCONFIG_PATH=${fontconfig.out}/etc/fonts/"
+      ];
+    };
   };
-}
+in self