Merge pull request #1245 from midchildan/feat/httpbin-module

httpbin: new module

examples/httpbin/.test.sh

@@ -0,0 +1,7 @@
+#!/usr/bin/env bash
+set -euxo pipefail
+
+for port in 8080 8081; do
+  wait_for_port "$port"
+  curl -vf "http://127.0.0.1:$port/headers"
+done

examples/httpbin/devenv.nix

@@ -0,0 +1,10 @@
+{ pkgs, ... }:
+
+{
+  packages = [ pkgs.curl ];
+
+  services.httpbin = {
+    enable = true;
+    bind = [ "127.0.0.1:8080" "127.0.0.1:8081" ];
+  };
+}

src/modules/services/httpbin.nix

@@ -0,0 +1,34 @@
+{ pkgs, lib, config, ... }:
+
+let
+  cfg = config.services.httpbin;
+
+  qs = lib.escapeShellArgs;
+
+  python = pkgs.python3.withPackages (ps: with ps; [ httpbin gunicorn gevent ]);
+  binds = lib.concatMap (addr: [ "-b" addr ]) cfg.bind;
+in
+{
+  options.services.httpbin = {
+    enable = lib.mkEnableOption "httpbin";
+
+    bind = lib.mkOption {
+      type = with lib.types; listOf str;
+      default = [ "127.0.0.1:8080" ];
+      description = "Addresses for httpbin to listen on.";
+    };
+
+    extraArgs = lib.mkOption {
+      type = with lib.types; listOf str;
+      default = [ ];
+      description = "Gunicorn CLI arguments for httpbin.";
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
+    processes.httpbin.exec = ''
+      exec ${python}/bin/gunicorn httpbin:app -k gevent ${qs binds} ${qs cfg.extraArgs}
+    '';
+  };
+}
+