trivionomicon: socialpredict: initial commit

3 files changed, 191 insertions, 0 deletions

diff --git a/modules/socialpredict/default.nix b/modules/socialpredict/default.nix
new file mode 100644
index 0000000..f821bf4
--- /dev/null
+++ b/modules/socialpredict/default.nix
@@ -0,0 +1,11 @@
+{
+  config,
+  doctrine,
+  ...
+}:
+doctrine.lib.mkModule {
+  inherit config;
+  name = "socialpredict";
+  options = ./options.nix;
+  sys = ./sys.nix;
+}
diff --git a/modules/socialpredict/options.nix b/modules/socialpredict/options.nix
new file mode 100644
index 0000000..bb2ad5e
--- /dev/null
+++ b/modules/socialpredict/options.nix
@@ -0,0 +1,78 @@
+{
+  config,
+  doctrine,
+  lib,
+  modulesPath,
+  pkgs,
+  ...
+}:
+with lib.types; let
+  inherit (pkgs.${doctrine.prefix}) socialpredict;
+in {
+  sys = {
+    frontend = lib.mkOption {
+      type = package;
+      default = socialpredict.frontend;
+      defaultText = "pkgs.\${doctrine.prefix}.frontend";
+      description = "socialpredict frontend package";
+    };
+
+    backend = lib.mkOption {
+      type = package;
+      default = socialpredict.backend;
+      defaultText = "pkgs.\${doctrine.prefix}.backend";
+      description = "socialpredict backend package";
+    };
+
+    package = lib.mkOption {
+      type = package;
+      default = pkgs.${doctrine.prefix}.socialpredict;
+      defaultText = "pkgs.\${doctrine.prefix}.socialpredict";
+      description = "socialpredict package";
+    };
+
+    database = lib.mkOption {
+      type = str;
+      default = "socialpredict";
+      description = "database name";
+    };
+
+    user = lib.mkOption {
+      type = str;
+      default = "socialpredict";
+      description = "user that will run the backend";
+    };
+
+    group = lib.mkOption {
+      type = str;
+      default = "socialpredict";
+      description = "group that will run the backend";
+    };
+
+    backendPort = lib.mkOption {
+      type = port;
+      description = "backend port";
+    };
+
+    initialAdminPassword = lib.mkOption {
+      type = str;
+      default = "change-me";
+      description = "initial password of the 'admin' user";
+    };
+
+    domain = lib.mkOption {
+      type = nullOr str;
+      default = null;
+      description = "domain host";
+    };
+
+    nginx = lib.mkOption {
+      type = submodule (
+        lib.recursiveUpdate (import "${modulesPath}/services/web-servers/nginx/vhost-options.nix" {inherit config lib;}) {}
+      );
+
+      default = {};
+      description = "extra nginx virtual host config";
+    };
+  };
+}
diff --git a/modules/socialpredict/sys.nix b/modules/socialpredict/sys.nix
new file mode 100644
index 0000000..36e5272
--- /dev/null
+++ b/modules/socialpredict/sys.nix
@@ -0,0 +1,102 @@
+{
+  cfg,
+  doctrine,
+  lib,
+  pkgs,
+  ...
+}: {
+  services = {
+    nginx = lib.mkIf (cfg.domain != null) {
+      enable = true;
+
+      virtualHosts.${cfg.domain} = lib.mkMerge [
+        cfg.nginx
+        {
+          locations = {
+            "/" = {
+              root = "${cfg.frontend}";
+              index = "index.html";
+              tryFiles = "$uri $uri/ /index.html =404";
+            };
+
+            "/api/" = {
+              proxyPass = "http://localhost:${toString cfg.backendPort}/";
+            };
+
+            "= /env-config.js" = {
+              alias = "${pkgs.writeText "socialpredict-env-config.js" ''
+                window.__ENV__ = {
+                  DOMAIN_URL: "https://${cfg.domain}",
+                  API_URL: "https://${cfg.domain}/api"
+                };
+              ''}";
+            };
+          };
+        }
+      ];
+    };
+
+    postgresql = {
+      enable = true;
+
+      ensureUsers = [
+        {
+          name = cfg.user;
+          ensureDBOwnership = cfg.user == cfg.database;
+        }
+      ];
+
+      ensureDatabases = [cfg.database];
+    };
+  };
+
+  systemd.services.socialpredict = {
+    after = ["postgresql.service"];
+    wants = ["postgresql.service"];
+    wantedBy = ["multi-user.target"];
+
+    environment = {
+      ADMIN_PASSWORD = cfg.initialAdminPassword;
+      BACKEND_PORT = toString cfg.backendPort;
+      POSTGRES_URL = "postgresql:///${cfg.database}?host=/var/run/postgresql";
+    };
+
+    serviceConfig = {
+      Group = cfg.group;
+      User = cfg.user;
+
+      ExecStart = lib.getExe cfg.backend;
+
+      KeyringMode = "private";
+      LockPersonality = true;
+      MemoryDenyWriteExecute = true;
+      NoNewPrivileges = true;
+      PrivateMounts = "yes";
+      PrivateTmp = "yes";
+      ProtectControlGroups = true;
+      ProtectHome = "yes";
+      ProtectHostname = true;
+      ProtectKernelModules = true;
+      ProtectKernelTunables = true;
+      ProtectSystem = "strict";
+      RemoveIPC = true;
+      RestrictAddressFamilies = ["AF_UNIX" "AF_INET" "AF_INET6"];
+      RestrictNamespaces = true;
+      RestrictRealtime = true;
+      RestrictSUIDSGID = true;
+      SystemCallArchitectures = "native";
+
+      ReadWritePaths = [
+        "/var/run/postgresql"
+      ];
+    };
+  };
+
+  users = {
+    groups.${cfg.group} = {};
+    users.${cfg.user} = {
+      inherit (cfg) group;
+      isSystemUser = true;
+    };
+  };
+}