Add /bin to PATH in forgejo nix image

Add release instructions

README.md

@@ -0,0 +1,12 @@
+# Container-images
+
+Container images we build for our home lab.
+
+## Releasing
+
+To build and push a new image version to image registry, run the following command.
+Note you cannot have uncommited changes in the Git repository.
+
+```
+nix run .#packages.x86_64-linux.release .#packages.x86_64-linux.<name> <name>
+```

forgejo-nix-action.nix

@@ -15,10 +15,17 @@ in
     name = "forgejo-nix-action";
     tag = "latest";
     fromImage = nixFromDockerHub;
+
     copyToRoot = pkgs.buildEnv {
       name = "image-root";
       paths = [ pkgs.coreutils pkgs.attic-client ];
       pathsToLink = [ "/bin" ];
     };
+
+    config = {
+      env = [
+        "PATH=/bin:/root/.nix-profile/bin:/nix/var/nix/profiles/default/bin:/nix/var/nix/profiles/default/sbin"
+      ];
+    };
   };
 })