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-rw-r--r--modules/by-name/ba/back/module.nix163
-rw-r--r--modules/by-name/ba/backup/module.nix91
2 files changed, 158 insertions, 96 deletions
diff --git a/modules/by-name/ba/back/module.nix b/modules/by-name/ba/back/module.nix
index 520acdb..d47ffce 100644
--- a/modules/by-name/ba/back/module.nix
+++ b/modules/by-name/ba/back/module.nix
@@ -6,116 +6,87 @@
   ...
 }: let
   cfg = config.vhack.back;
+in {
+  options.vhack.back = {
+    enable = lib.mkEnableOption "Back issue tracker (inspired by tvix's panettone)";
 
-  mkConfigFile = repoPath: domain:
-    (pkgs.formats.json {}).generate "config.json"
-    {
-      inherit (cfg) source_code_repository_url;
-      repository_path = repoPath;
-      root_url = "https://${domain}";
-    };
-
-  mkUnit = repoPath: port: domain: {
-    description = "Back service for ${repoPath}";
-    wants = ["network-online.target"];
-    after = ["network-online.target"];
-    wantedBy = ["default.target"];
-
-    environment = {
-      ROCKET_PORT = builtins.toString port;
+    domain = lib.mkOption {
+      type = lib.types.str;
+      description = "The domain to host this `back` instance on.";
     };
 
-    serviceConfig = {
-      ExecStart = "${lib.getExe vhackPackages.back} ${mkConfigFile repoPath domain}";
+    settings = {
+      scan_path = lib.mkOption {
+        type = lib.types.path;
+        description = "The path to the directory under which all the repositories reside";
+      };
+      project_list = lib.mkOption {
+        type = lib.types.path;
+        description = "The path to the `projects.list` file.";
+      };
 
-      # Ensure that the service can read the repository
-      # FIXME(@bpeetz): This has the implied assumption, that all the exposed git
-      # repositories are readable for the git group. This should not be necessary. <2024-12-23>
-      User = "git";
-      Group = "git";
+      source_code_repository_url = lib.mkOption {
+        description = "The url to the source code of this instance of back";
+        default = "https://git.foss-syndicate.org/vhack.eu/nixos-server/tree/pkgs/by-name/ba/back";
+        type = lib.types.str;
+      };
 
-      DynamicUser = true;
-      Restart = "always";
-
-      # Sandboxing
-      ProtectSystem = "strict";
-      ProtectHome = true;
-      PrivateTmp = true;
-      PrivateDevices = true;
-      ProtectHostname = true;
-      ProtectClock = true;
-      ProtectKernelTunables = true;
-      ProtectKernelModules = true;
-      ProtectKernelLogs = true;
-      ProtectControlGroups = true;
-      RestrictAddressFamilies = ["AF_UNIX" "AF_INET" "AF_INET6"];
-      RestrictNamespaces = true;
-      LockPersonality = true;
-      MemoryDenyWriteExecute = true;
-      RestrictRealtime = true;
-      RestrictSUIDSGID = true;
-      RemoveIPC = true;
-      PrivateMounts = true;
-      # System Call Filtering
-      SystemCallArchitectures = "native";
-      SystemCallFilter = ["~@cpu-emulation @debug @keyring @mount @obsolete @privileged @setuid"];
+      root_url = lib.mkOption {
+        type = lib.types.str;
+        description = "The url to this instance of back.";
+        default = "https://${cfg.domain}";
+      };
     };
   };
 
-  mkVirtalHost = port: {
-    locations."/".proxyPass = "http://127.0.0.1:${builtins.toString port}";
+  config = lib.mkIf cfg.enable {
+    systemd.services."back" = {
+      description = "Back issue tracking system.";
+      requires = ["network-online.target"];
+      after = ["network-online.target"];
+      wantedBy = ["default.target"];
 
-    enableACME = true;
-    forceSSL = true;
-  };
+      serviceConfig = {
+        ExecStart = "${lib.getExe vhackPackages.back} ${(pkgs.formats.json {}).generate "config.json" cfg.settings}";
 
-  services =
-    lib.mapAttrs' (gitPath: config: {
-      name = builtins.replaceStrings ["/"] ["_"] "back-${config.domain}";
-      value = mkUnit gitPath config.port config.domain;
-    })
-    cfg.repositories;
+        # Ensure that the service can read the repository
+        # FIXME(@bpeetz): This has the implied assumption, that all the exposed git
+        # repositories are readable for the git group. This should not be necessary. <2024-12-23>
+        User = "git";
+        Group = "git";
 
-  virtualHosts =
-    lib.mapAttrs' (gitPath: config: {
-      name = config.domain;
-      value = mkVirtalHost config.port;
-    })
-    cfg.repositories;
-in {
-  options.vhack.back = {
-    enable = lib.mkEnableOption "Back issue tracker (inspired by tvix's panettone)";
+        DynamicUser = true;
+        Restart = "always";
 
-    source_code_repository_url = lib.mkOption {
-      description = "The url to the source code of this instance of back";
-      default = "https://git.foss-syndicate.org/vhack.eu/nixos-server/tree/pkgs/by-name/ba/back";
-      type = lib.types.str;
+        # Sandboxing
+        ProtectSystem = "strict";
+        ProtectHome = true;
+        PrivateTmp = true;
+        PrivateDevices = true;
+        ProtectHostname = true;
+        ProtectClock = true;
+        ProtectKernelTunables = true;
+        ProtectKernelModules = true;
+        ProtectKernelLogs = true;
+        ProtectControlGroups = true;
+        RestrictAddressFamilies = ["AF_UNIX" "AF_INET" "AF_INET6"];
+        RestrictNamespaces = true;
+        LockPersonality = true;
+        MemoryDenyWriteExecute = true;
+        RestrictRealtime = true;
+        RestrictSUIDSGID = true;
+        RemoveIPC = true;
+        PrivateMounts = true;
+        # System Call Filtering
+        SystemCallArchitectures = "native";
+        SystemCallFilter = ["~@cpu-emulation @debug @keyring @mount @obsolete @privileged @setuid"];
+      };
     };
+    services.nginx.virtualHosts."${cfg.domain}" = {
+      locations."/".proxyPass = "http://127.0.0.1:8000";
 
-    repositories = lib.mkOption {
-      description = "An attibute set of repos to launch `back` services for.";
-      type = lib.types.attrsOf (lib.types.submodule {
-        options = {
-          enable = (lib.mkEnableOption "`back` for this repository.") // {default = true;};
-          domain = lib.mkOption {
-            type = lib.types.str;
-            description = "The domain to host this `back` instance on.";
-          };
-          port = lib.mkOption {
-            type = lib.types.port;
-
-            # TODO: This _should_ be an implementation detail, but I've no real approach to
-            # automatically generate them without encountering weird bugs. <2024-12-23>
-            description = "The port to use for this back instance. This must be unique.";
-          };
-        };
-      });
-      default = {};
+      enableACME = true;
+      forceSSL = true;
     };
   };
-
-  config = lib.mkIf cfg.enable {
-    systemd = {inherit services;};
-    services.nginx = {inherit virtualHosts;};
-  };
 }
diff --git a/modules/by-name/ba/backup/module.nix b/modules/by-name/ba/backup/module.nix
new file mode 100644
index 0000000..856a1c3
--- /dev/null
+++ b/modules/by-name/ba/backup/module.nix
@@ -0,0 +1,91 @@
+{
+  config,
+  pkgs,
+  lib,
+  ...
+}: let
+  cfg = config.vhack.backup;
+  snapshots = "/srv/snapshots";
+  postgresUser = "postgres";
+in {
+  options.vhack.backup = {
+    enable = lib.mkEnableOption "backups with restic";
+    user = lib.mkOption {
+      type = lib.types.str;
+      description = "The storagebox-user to use";
+      example = "u384702-sub2";
+    };
+    privateSshKey = lib.mkOption {
+      type = lib.types.path;
+      description = "The age-encrypted ssh-key, passed to agenix";
+    };
+    privatePassword = lib.mkOption {
+      type = lib.types.path;
+      description = "The age-encrypted restic password, passed to agenix";
+    };
+  };
+  config = lib.mkIf cfg.enable {
+    vhack.persist.directories = [
+      {
+        directory = "/root/.ssh";
+        user = "root";
+        group = "root";
+        mode = "0700";
+      }
+    ];
+    age.secrets = {
+      resticpass = {
+        file = cfg.privatePassword;
+        mode = "0700";
+        owner = "root";
+        group = "root";
+      };
+      resticssh = {
+        file = cfg.privateSshKey;
+        mode = "0700";
+        owner = "root";
+        group = "root";
+      };
+    };
+    services.restic.backups = {
+      storagebox = {
+        initialize = true;
+        backupPrepareCommand = ''
+          ${pkgs.sudo}/bin/sudo -u ${postgresUser} ${pkgs.postgresql}/bin/pg_dumpall --clean --if-exists --quote-all-identifiers > /srv/db_backup.sql
+
+          [ -d /srv/snapshots ] || ${pkgs.btrfs-progs}/bin/btrfs subvolume create /srv/snapshots;
+          [ -d /srv/snapshots/srv ] && ${pkgs.btrfs-progs}/bin/btrfs subvolume delete /srv/snapshots/srv;
+          ${pkgs.btrfs-progs}/bin/btrfs subvolume snapshot -r /srv /srv/snapshots/srv;
+
+          # dump() {
+          #   # compression:
+          #   # pg_dump -F t -v "$1" | xz -z -9 -e -T0 > "db_$1.tar.xz"
+          #   pg_dump -v "$1" > "db_$1.tar.xz"
+          # }
+          # # List all databases, and dump each of them in its own file
+          # # psql --list --csv | while read -r line; do echo "$line" | grep ','; done | while IFS=, read -r name _; do  echo "$name"; done | sed '1d' | while read -r db_name; do dump "$db_name"; done
+        '';
+        paths = [
+          snapshots
+        ];
+        exclude = [
+          ".snapshots"
+          "/var/lib/postgresql" # included in the db dump
+        ];
+        extraBackupArgs = [
+          "--verbose" # spam log
+        ];
+        passwordFile = config.age.secrets.resticpass.path;
+        extraOptions = [
+          "rclone.program='ssh -p 23 ${cfg.user}@${cfg.user}.your-storagebox.de -i ${config.age.secrets.resticssh.path}'"
+        ];
+        repository = "rclone: "; # There is only one repository served
+        timerConfig = {
+          Requires = "network-online.target";
+          OnCalendar = "daily";
+          Persistent = true;
+        };
+      };
+    };
+  };
+}
generated by cgit-pink 1.4.1 (git 2.36.1) at 2025-03-21 07:59:29 +0000