diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..98cc5dc
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+packer_cache/
\ No newline at end of file
diff --git a/build.json b/build.json
new file mode 100644
index 0000000..9689eb1
--- /dev/null
+++ b/build.json
@@ -0,0 +1,64 @@
+{
+  "variables": {
+    "memory": "4G",
+    "cpus": "2",
+
+    "iso_url": "https://cdimage.debian.org/debian-cd/current/amd64/iso-cd/debian-9.8.0-amd64-netinst.iso",
+    "iso_checksum": "cc4a6bd50925c1c4af98049060e304494bc9da61eb5eb272c556d67608de14d4e6a4b8bc1c9412a0f810083912e228569f3771ffffa7174538f3e26f45a05245",
+    "iso_checksum_type": "sha512",
+
+    "boot_wait": "3s",
+    "boot_key_interval": "10ms",
+
+    "ssh_username": "unifi",
+    "ssh_password": "uuunifi",
+    "ssh_timeout": "60m",
+
+    "machine_hostname": "unifi-controller",
+    "machine_domain": "lab.uncomfortably.online",
+
+    "http_directory": "http/",
+    "preseed_file": "preseed.cfg"
+  },
+  "builders": [
+    {
+      "type": "qemu",
+      "accelerator": "kvm",
+      "qemuargs": [
+        [ "-m", "{{ user `memory` }}" ],
+        [ "-smp", "cpus={{ user `cpus`}}"]
+      ],
+
+      "iso_url": "{{user `iso_url`}}",
+      "iso_checksum": "{{user `iso_checksum`}}",
+      "iso_checksum_type": "{{user `iso_checksum_type`}}",
+
+      "http_directory": "{{user `http_directory`}}",
+
+      "boot_wait": "{{user `boot_wait`}}",
+      "boot_key_interval": "{{user `boot_key_interval`}}",
+      "boot_command": [
+        "<esc><wait>",
+        "install ",
+        "auto=true ",
+        "url=http://{{.HTTPIP}}:{{.HTTPPort}}/{{user `preseed_file`}} ",
+
+        "hostname={{user `machine_hostname`}} ",
+        "domain={{user `machine_domain`}} ",
+        "interface=auto ",
+
+        "passwd/user-fullname={{user `ssh_username`}} ",
+        "passwd/username={{user `ssh_username`}} ",
+        "passwd/user-password={{user `ssh_password`}} ",
+        "passwd/user-password-again={{user `ssh_password`}} ",
+
+        "<enter>"
+      ],
+
+      "communicator": "ssh",
+      "ssh_username": "{{user `ssh_username`}}",
+      "ssh_password": "{{user `ssh_password`}}",
+      "ssh_timeout": "{{user `ssh_timeout`}}"
+    }
+  ]
+}
\ No newline at end of file
diff --git a/http/preseed.cfg b/http/preseed.cfg
new file mode 100644
index 0000000..7a1e306
--- /dev/null
+++ b/http/preseed.cfg
@@ -0,0 +1,62 @@
+### Localization
+# Preseeding only locale sets language, country and locale.
+d-i debian-installer/locale string en_US
+
+# Keyboard selection.
+d-i keyboard-configuration/xkb-keymap select us
+
+### Network configuration
+# netcfg will choose an interface that has link if possible. This makes it
+# skip displaying a list if there is more than one interface.
+d-i netcfg/choose_interface select auto
+
+# Disable that annoying WEP key dialog.
+d-i netcfg/wireless_wep string
+
+### Mirror settings
+d-i mirror/country string manual
+d-i mirror/http/hostname string http.us.debian.org
+d-i mirror/http/directory string /debian
+d-i mirror/http/proxy string
+
+### Account setup
+# Skip creation of a root account (normal user account will be able to
+# use sudo).
+d-i passwd/root-login boolean false
+
+## Package setup
+d-i hw-detect/load_firmware boolean false
+d-i hw-detect/load_media boolean false
+apt-cdrom-setup apt-setup/cdrom/set-first boolean false
+tasksel tasksel/first multiselect print-server, ssh-server, standard
+d-i pkgsel/include string sudo, unattended-upgrades
+popularity-contest popularity-contest/participate boolean false
+
+### Clock and time zone setup
+d-i clock-setup/utc boolean true
+d-i time/zone string UTC
+d-i clock-setup/ntp boolean true
+
+### Partitioning
+d-i partman-auto/method string lvm
+d-i partman-lvm/device_remove_lvm boolean true
+d-i partman-md/device_remove_md boolean true
+d-i partman-lvm/confirm boolean true
+d-i partman-lvm/confirm_nooverwrite boolean true
+d-i partman-auto/choose_recipe select atomic
+d-i partman-partitioning/confirm_write_new_label boolean true
+d-i partman/choose_partition select finish
+d-i partman/confirm boolean true
+d-i partman/confirm_nooverwrite boolean true
+
+# This makes partman automatically partition without confirmation.
+d-i partman-md/confirm boolean true
+d-i partman-partitioning/confirm_write_new_label boolean true
+d-i partman/choose_partition select finish
+d-i partman/confirm boolean true
+d-i partman/confirm_nooverwrite boolean true
+
+### Boot loader installation
+d-i grub-installer/only_debian boolean true
+d-i grub-installer/with_other_os boolean true
+d-i finish-install/reboot_in_progress note