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Kroese
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7.6 KiB
Environment Variables
This page lists all the environment variables that can be used to configure the container.
🪟 Windows
| Variable | Default | Description |
|---|---|---|
VERSION |
11 |
Windows version to install, for example 10 or 11. |
EDITION |
Windows edition to install, for example core for Windows Server Core. |
|
LANGUAGE |
en-US |
Windows display language, for example en, fr, nl, etc. |
REGION |
en-US |
Windows regional format, for example en-US. |
KEYBOARD |
en-US |
Keyboard layout used during installation, for example en-US. |
USERNAME |
Dockur |
Username for the Windows account. |
PASSWORD |
admin |
Password for the Windows account. |
KEY |
Windows product key used during installation. | |
MANUAL |
N |
Enables manual installation instead of unattended installation. |
VERIFY |
N |
Verifies checksums of downloaded images. |
REMOVE |
Y |
Removes the Windows ISO after installation. Set to N to keep it. |
🧠 CPU and Memory
| Variable | Default | Description |
|---|---|---|
CPU_CORES |
2 |
Number of CPU cores assigned to the VM. Can also be set to max or half. |
CPU_MODEL |
host |
QEMU CPU model to use. |
CPU_FLAGS |
Additional QEMU CPU flags. | |
KVM |
Y |
Enables KVM hardware acceleration. Set to N to disable. |
VMX |
N |
Exposes Intel VMX virtualization extensions to Windows. |
HV |
Y |
Enables Hyper-V enlightenments for Windows. |
RAM_SIZE |
4G |
Amount of RAM assigned to the VM, for example 4G, 8G, max, or half. |
RAM_CHECK |
Y |
Checks whether enough host memory is available before starting the VM. |
⚙️ System
| Variable | Default | Description |
|---|---|---|
MACHINE |
q35 |
QEMU machine type. |
UUID |
QEMU VM UUID. | |
HPET |
off |
Enables or disables the QEMU HPET timer. |
VMPORT |
off |
Enables or disables the QEMU VMware port. |
SM_BIOS |
Additional SMBIOS arguments passed to QEMU. | |
ARGUMENTS |
Additional raw QEMU arguments appended to the generated command line. |
🚀 Boot
| Variable | Default | Description |
|---|---|---|
BOOT_MODE |
windows |
Boot mode, for example windows, windows_secure, or windows_legacy. |
BOOT_INDEX |
9 |
Boot priority index for the installation media. |
BIOS |
Custom BIOS/firmware file. Setting this enables custom boot mode. | |
TPM |
N |
Enables TPM support. |
SMM |
N |
Enables SMM/secure-machine support. |
LOGO |
Y |
Enables the custom boot logo. |
CLEAR |
N |
Clears the firmware/NVRAM variables on the next boot. |
USB |
qemu-xhci,id=xhci,p2=7,p3=7 |
QEMU USB controller setting. Set to a no* value to disable. |
💾 Storage
| Variable | Default | Description |
|---|---|---|
DISK_SIZE |
64G |
Size of the main data disk. |
DISK_FMT |
raw |
Disk image format, usually raw or qcow2. |
DISK_TYPE |
scsi |
Disk controller/device type, such as sata, scsi, nvme, or blk. |
DISK_CACHE |
none |
QEMU disk cache mode, for example none or writeback. |
DISK_IO |
native |
QEMU disk I/O mode, for example native, threads, or io_uring. |
DISK_DISCARD |
unmap |
Enables TRIM/unmap support for the data disk. |
DISK_ROTATION |
1 |
Rotation rate reported to the guest. Use 1 for SSD-like storage. |
DISK_FLAGS |
Additional options used when creating qcow2 disks. | |
ALLOCATE |
N |
Preallocates disk space when creating the data disk. |
STORAGE |
/storage |
Storage directory used for disks, firmware variables, and generated files. |
🌐 Networking
| Variable | Default | Description |
|---|---|---|
NETWORK |
Y |
Network mode. Common values are Y for NAT, passt, slirp, or N to disable networking. |
DHCP |
N |
Enables DHCP/macvtap mode so the VM receives an address from the external LAN. |
IP |
Guest IP address override. | |
MAC |
Guest network adapter MAC address. | |
HOST |
Windows |
Hostname assigned to the VM. |
DEV |
eth0 |
Host/container network interface to use. |
MTU |
Network MTU to use for the guest interface. | |
MASK |
255.255.255.0 |
IPv4 netmask. |
TAP |
qemu |
TAP/macvtap interface name. |
BRIDGE |
docker |
Bridge name used for NAT networking. |
ADAPTER |
virtio-net-pci |
QEMU network adapter model. |
HOST_PORTS |
Ports reserved for services running on the host/container side. | |
USER_PORTS |
Additional ports to forward to the VM when using user-mode networking. | |
DNSMASQ_OPTS |
Additional dnsmasq options. | |
DNSMASQ_DEBUG |
N |
Enables dnsmasq log tailing. |
DNSMASQ_DISABLE |
N |
Disables the internal dnsmasq resolver. |
PASST_OPTS |
Additional passt options. | |
PASST_DEBUG |
N |
Enables passt debug output. |
📁 File Sharing
| Variable | Default | Description |
|---|---|---|
SAMBA |
Y |
Enables or disables the Samba shared folder. |
SAMBA_DEBUG |
N |
Enables Samba debug output. |
🖥️ Display
| Variable | Default | Description |
|---|---|---|
WIDTH |
1920 |
Display width configured for Windows. |
HEIGHT |
1080 |
Display height configured for Windows. |
DISPLAY |
web |
Display backend. Common values are web, vnc, disabled, or none. |
VGA |
virtio |
QEMU video adapter model. |
GPU |
N |
Enables Intel iGPU acceleration. Experimental. |
RENDERNODE |
/dev/dri/renderD128 |
Render node used for GPU acceleration. |
🌍 Web UI
| Variable | Default | Description |
|---|---|---|
WEB |
Y |
Enables or disables the web interface. |
WEB_PORT |
8006 |
Port for the web interface. |
VNC_PORT |
5900 |
Port for the VNC server. |
WSS_PORT |
5700 |
WebSocket port used by QEMU/noVNC. |
WSD_PORT |
8004 |
Internal websocketd port. |
PROTECT |
N |
Enables password protection for the web interface. |
🎈 Memory Ballooning
Also see Dynamic memory allocation for usage notes and important caveats.
| Variable | Default | Description |
|---|---|---|
BALLOONING |
N |
Enables dynamic memory ballooning. |
BALLOONING_DEBUG |
N |
Enables debug output for the ballooning monitor. |
BALLOONING_MIN_MEM |
33% |
Minimum memory target for the balloon device. |
BALLOONING_RAM_THRESHOLD |
80.0 |
Target host RAM usage percentage. |
BALLOONING_RAM_THRESHOLD_HARD |
90.0 |
Host RAM usage percentage where ballooning becomes more aggressive. |
BALLOONING_PSI_PRESSURE |
10.0 |
PSI memory pressure level where ballooning starts reacting more aggressively. |
BALLOONING_PSI_PRESSURE_MAX |
50.0 |
PSI memory pressure level where ballooning reaches its strongest response. |
BALLOONING_HYSTERESIS |
128M |
Minimum memory change before the balloon target is updated. |
BALLOONING_KP |
0.5 |
Proportional gain for the ballooning controller. |
BALLOONING_KI |
0.05 |
Integral gain for the ballooning controller. |
BALLOONING_INTERVAL |
5 |
Polling interval in seconds. |
🔌 Shutdown
| Variable | Default | Description |
|---|---|---|
SHUTDOWN |
Y |
Enables graceful ACPI shutdown. |
TIMEOUT |
115 |
Timeout used while waiting for the VM to shut down. |
🐞 Debugging
| Variable | Default | Description |
|---|---|---|
DEBUG |
N |
Enables verbose debug output. |
TRACE |
N |
Enables shell command tracing. |
DETECTED |
Overrides the detected Windows image identifier. | |
SERIAL |
mon:stdio |
QEMU serial device setting. |
MONITOR |
unix:$QEMU_DIR/monitor.sock,server,wait=off,nodelay |
QEMU monitor device setting. |