Update 2

test.bu

@@ -9,4 +9,52 @@ passwd:
       groups:
         - docker
         - wheel
-        - sudo
+        - sudo
+storage:
+  files:
+    - path: /etc/hostname
+      mode: 0644
+      contents:
+        inline: сos.itphx.loc
+    - path: /etc/NetworkManager/system-connections/ens18.nmconnection
+      mode: 0600
+      contents:
+        inline: |
+          [connection]
+          id=ens18
+          type=ethernet
+          interface-name=ens18
+          [ipv4]
+          address1=10.0.0.13/24,10.0.0.254
+          dns=10.0.0.245;
+          dns-search=itphx.loc
+          may-fail=false
+          method=manual
+    - path: /etc/NetworkManager/system-connections/ens19.nmconnection
+      mode: 0600
+      contents:
+        inline: |
+          [connection]
+          id=ens19
+          type=ethernet
+          interface-name=ens19
+          [ipv4]
+          address1=10.0.0.16
+          address1=10.0.0.17
+          address1=10.0.0.18
+          dns=
+          dns-search=
+          may-fail=false
+          method=manual
+  disks:
+  - device: /dev/sdb
+    wipe_table: false
+    partitions:
+    - size_mib: 0
+      start_mib: 0
+      label: data
+  filesystems:
+    - path: /data
+      device: /dev/disk/by-partlabel/data
+      format: xfs
+      with_mount_unit: true

test.ign

@@ -17,5 +17,60 @@
         ]
       }
     ]
+  },
+  "storage": {
+    "disks": [
+      {
+        "device": "/dev/sdb",
+        "partitions": [
+          {
+            "label": "data",
+            "sizeMiB": 0,
+            "startMiB": 0
+          }
+        ],
+        "wipeTable": false
+      }
+    ],
+    "files": [
+      {
+        "path": "/etc/hostname",
+        "contents": {
+          "source": "data:,%D1%81os.itphx.loc"
+        },
+        "mode": 420
+      },
+      {
+        "path": "/etc/NetworkManager/system-connections/ens18.nmconnection",
+        "contents": {
+          "source": "data:,%5Bconnection%5D%0Aid%3Dens18%0Atype%3Dethernet%0Ainterface-name%3Dens18%0A%5Bipv4%5D%0Aaddress1%3D10.0.0.13%2F24%2C10.0.0.254%0Adns%3D10.0.0.245%3B%0Adns-search%3Ditphx.loc%0Amay-fail%3Dfalse%0Amethod%3Dmanual%0A"
+        },
+        "mode": 384
+      },
+      {
+        "path": "/etc/NetworkManager/system-connections/ens19.nmconnection",
+        "contents": {
+          "compression": "gzip",
+          "source": "data:;base64,H4sIAAAAAAAC/2TKTarDMAzE8b3uksczlH4sdJKQhbDH2GDLwVILuX0JdBcGZvHjv8ahiuh16EY1MdTCi/zYwfCCqXCq6phZIhaVjl+y1v1z20hSmjALHP7/zoX7lR5XelJS4/MWg8xYmLocS5baOEszUIeXkbiLvqXRNwAA//8yszHqpwAAAA=="
+        },
+        "mode": 384
+      }
+    ],
+    "filesystems": [
+      {
+        "device": "/dev/disk/by-partlabel/data",
+        "format": "xfs",
+        "path": "/data"
+      }
+    ]
+  },
+  "systemd": {
+    "units": [
+      {
+        "contents": "# Generated by Butane\n[Unit]\nBefore=local-fs.target\nRequires=systemd-fsck@dev-disk-by\\x2dpartlabel-data.service\nAfter=systemd-fsck@dev-disk-by\\x2dpartlabel-data.service\n\n[Mount]\nWhere=/data\nWhat=/dev/disk/by-partlabel/data\nType=xfs\n\n[Install]\nRequiredBy=local-fs.target",
+        "enabled": true,
+        "name": "data.mount"
+      }
+    ]
   }
 }