From a1d8493242d002a7e31e25c3e52f9271f664583d Mon Sep 17 00:00:00 2001
From: stubbfel <stubbfel@stubbe.rocks>
Date: Sat, 29 Jun 2024 18:11:25 +0000
Subject: [PATCH] add bare metal runtime

---
 .devcontainer/devcontainer.json               |  7 ++++-
 .gitignore                                    |  3 +-
 flake.nix                                     |  6 ++--
 .../example/services/python/default.nix       |  2 ++
 playground/example/services/rust/default.nix  |  2 ++
 .../runtime/engines/baremetal/default.nix     | 28 +++++++++++++++++++
 6 files changed, 43 insertions(+), 5 deletions(-)
 create mode 100644 playground/runtime/engines/baremetal/default.nix

diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
index a0a48ef..47ad41c 100644
--- a/.devcontainer/devcontainer.json
+++ b/.devcontainer/devcontainer.json
@@ -1,7 +1,12 @@
 {
 	"name": "Alpine",
 	"image": "mcr.microsoft.com/devcontainers/base:alpine",
-	"postCreateCommand": "sudo apk add nix nix-dev nix-doc nix-manual nix-bash-completion && sudo chown -R vscode:vscode /nix && echo 'experimental-features = nix-command flakes' | sudo tee -a /etc/nix/nix.conf",
+	"features": {
+		"ghcr.io/devcontainers/features/nix:1": {
+			"extraNixConfig": "experimental-features = nix-command flakes",
+			"packages": "nixpkgs-fmt"
+		}
+	},
 	"runArgs": [
 		"--userns=keep-id"
 	],
diff --git a/.gitignore b/.gitignore
index e2f5dd2..ece38b6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
-result
\ No newline at end of file
+result
+nohup.out
\ No newline at end of file
diff --git a/flake.nix b/flake.nix
index c27109b..166c8ce 100644
--- a/flake.nix
+++ b/flake.nix
@@ -19,15 +19,15 @@
     {
       packages = rec {
         playground = space.playground.package;
-        default = playground;
+        default = pkgs.callPackage ./playground/runtime/engines/baremetal { services = [ space.playground.package ]; };
       };
       apps = rec {
         playground = flake-utils.lib.mkApp { drv = space.playground.package; exePath = ""; };
-        default = playground;
+        default = flake-utils.lib.mkApp { drv = self.packages.${system}.default; };
       };
 
       devShells.default = pkgs.mkShell {
-        packages = [ pkgs.nixpkgs-fmt pkgs.nixpkgs-lint ];
+        packages = [ pkgs.nixpkgs-fmt ];
       };
     });
 }
diff --git a/playground/example/services/python/default.nix b/playground/example/services/python/default.nix
index 92eace8..af843f8 100644
--- a/playground/example/services/python/default.nix
+++ b/playground/example/services/python/default.nix
@@ -1,5 +1,7 @@
 { config ? import ../../config { } }:
 
 config.nixpkgs.writeScript "python-example-web-server" ''
+  #! /usr/bin/env sh
+  
   ${config.nixpkgs.python3}/bin/python -m http.server ${config.playground.port}        
 ''
diff --git a/playground/example/services/rust/default.nix b/playground/example/services/rust/default.nix
index ddb38c8..a4d0414 100644
--- a/playground/example/services/rust/default.nix
+++ b/playground/example/services/rust/default.nix
@@ -1,6 +1,8 @@
 { config ? import ../../config { } }:
 
 config.nixpkgs.writeScript "rust-example-web-server" ''
+  #! /usr/bin/env sh
+  
   ${config.nixpkgs.simple-http-server}/bin/simple-http-server --port ${config.playground.port}        
 ''
 
diff --git a/playground/runtime/engines/baremetal/default.nix b/playground/runtime/engines/baremetal/default.nix
new file mode 100644
index 0000000..1ce6d4d
--- /dev/null
+++ b/playground/runtime/engines/baremetal/default.nix
@@ -0,0 +1,28 @@
+{ pkgs, lib, services ? [ ] }:
+
+let
+
+  backgroundServices = lib.forEach services (s: " exec nohup 2>&1 ${s} &");
+  launchBackgroundServices = lib.strings.concatLines backgroundServices;
+
+in
+
+pkgs.writeScriptBin "run" ''
+  #! /usr/bin/env sh
+
+  echo start services
+
+  ${launchBackgroundServices}
+
+  sleep 3
+
+  read -r -p "to stop press any key:"
+ 
+  echo stop services
+
+  for job in `jobs -p`
+  do
+    pkill -P $job
+    kill $job
+  done
+''