nixos-configs/hosts/manatee/disk-config.nix

{ inputs, ... }:
{
  imports = [ inputs.disko.nixosModules.disko ];

  config = {
    users.groups.storage = { };

    users.users.storage = {
      isSystemUser = true;
      description = "storage";
      group = "storage";
    };

    systemd.tmpfiles.settings = {
      "10-media-public" = {
        "/mnt/media/public" = {
          d = {
            # Create directory
            user = "storage";
            group = "storage";
            mode = "2775";
          };
          z = {
            # Ensure permissions are inherited
            user = "storage";
            group = "storage";
            mode = "2775";
          };
        };
      };

      "10-cameras-public" = {
        "/mnt/cameras/public" = {
          d = {
            # Create directory
            user = "storage";
            group = "storage";
            mode = "2775";
          };
          z = {
            # Ensure permissions are inherited
            user = "storage";
            group = "storage";
            mode = "2775";
          };
        };
      };
    };

    networking.hostId = "0a9474e7"; # Required by ZFS
    disko.devices = {
      disk = {
        root = {
          type = "disk";
          device = "/dev/nvme0n1";
          content = {
            type = "gpt";
            partitions = {
              ESP = {
                size = "500M";
                type = "EF00";
                content = {
                  type = "filesystem";
                  format = "vfat";
                  mountpoint = "/boot";
                  mountOptions = [ "umask=0077" ];
                };
              };

              root = {
                size = "100%";
                content = {
                  type = "filesystem";
                  format = "ext4";
                  mountpoint = "/";
                };
              };
            };
          };
        };

        disk1 = {
          type = "disk";
          device = "/dev/disk/by-id/ata-ST8000VN004-3CP101_WWZ8QCG4";
          content = {
            type = "gpt";
            partitions = {
              zfs = {
                size = "100%";
                content = {
                  type = "zfs";
                  pool = "storage";
                };
              };
            };
          };
        };

        disk2 = {
          type = "disk";
          device = "/dev/disk/by-id/ata-ST8000VN004-3CP101_WWZ8QDJ5";
          content = {
            type = "gpt";
            partitions = {
              zfs = {
                size = "100%";
                content = {
                  type = "zfs";
                  pool = "storage";
                };
              };
            };
          };
        };
      };

      zpool = {
        storage = {
          type = "zpool";

          mode = {
            topology = {
              type = "topology";
              vdev = [
                {
                  mode = "mirror";
                  members = [
                    "disk1"
                    "disk2"
                  ];
                }
              ];
            };
          };

          rootFsOptions = {
            mountpoint = "none";
            compression = "zstd";
            xattr = "sa";
            "com.sun:auto-snapshot" = "false";
          };

          datasets = {
            media = {
              type = "zfs_fs";
              mountpoint = "/mnt/media";
              options.mountpoint = "legacy"; # otherwise we get a race between systemd and zfs; https://github.com/nix-community/disko/issues/214
            };

            cameras = {
              type = "zfs_fs";
              mountpoint = "/mnt/cameras";
              options.mountpoint = "legacy"; # otherwise we get a race between systemd and zfs; https://github.com/nix-community/disko/issues/214
            };
          };
        };
      };
    };
  };
}