Unverified Commit d9908b03 authored by Kroese's avatar Kroese Committed by GitHub
Browse files

feat: Make qcow2 the default 

* feat: Make qcow2 the default
parent abedbac7

docker-compose.yml

+0 −1
Original line number Diff line number Diff line
@@ -8,7 +8,6 @@ services: 
            RAM_SIZE: "1G"

            CPU_CORES: "1"

            DISK_SIZE: "16G"

            DISK_FMT: "qcow2"

            BOOT: "https://dl-cdn.alpinelinux.org/alpine/v3.18/releases/x86_64/alpine-standard-3.18.2-x86_64.iso"

        devices:

            - /dev/kvm

readme.md

+13 −15
Original line number Diff line number Diff line
@@ -32,8 +32,6 @@ services: 
    image: qemux/qemu-docker:latest

    environment:

      DISPLAY: "vnc"

      DISK_SIZE: "16G"

      DISK_FMT: "qcow2"

      BOOT: "https://dl-cdn.alpinelinux.org/alpine/v3.18/releases/x86_64/alpine-standard-3.18.2-x86_64.iso"

    devices:

      - /dev/kvm
@@ -48,7 +46,7 @@ services: 
Via `docker run`



```bash

docker run -it --rm -e "BOOT=http://www.example.com/image.iso" --device=/dev/kvm --cap-add NET_ADMIN qemux/qemu-docker:latest

docker run -it --rm -e "BOOT=http://www.example.com/image.iso" -p 5900:5900 --device=/dev/kvm --cap-add NET_ADMIN qemux/qemu-docker:latest

```



## FAQ
@@ -66,7 +64,7 @@ docker run -it --rm -e "BOOT=http://www.example.com/image.iso" --device=/dev/kvm 


  * ### How do I change the size of the data disk?



    To expand the default size of 16 GB, locate the `DISK_SIZE` setting in your compose file and modify it to your preferred capacity:

    To expand the default size of 16 GB, add the `DISK_SIZE` setting to your compose file and set it to your preferred capacity:



    ```yaml

    environment:
@@ -86,17 +84,6 @@ docker run -it --rm -e "BOOT=http://www.example.com/image.iso" --device=/dev/kvm 


    Replace the example path `/home/user/data` with the desired storage folder.



  * ### How do I create a growable disk?



    By default, the entire capacity of the disk is reserved in advance. To create a growable disk that only allocates space that is actually used, add the following environment variable:



    ```yaml

    environment:

      DISK_FMT: "qcow2"

    ```



    This can also be used to convert any existing disks to the ```qcow2``` format.



  * ### How do I increase the amount of CPU or RAM?



    By default, a single core and 1 GB of RAM are allocated to the container. To increase this, add the following environment variables:
@@ -184,6 +171,17 @@ docker run -it --rm -e "BOOT=http://www.example.com/image.iso" --device=/dev/kvm 


    Afterwards you can connect with any VNC client to port 5900.



  * ### How do I passthrough the GPU?



    To passthrough your Intel GPU, add the following lines to your compose file:



    ```yaml

    environment:

      GPU: "Y"

    devices:

      - /dev/dri

    ```



  * ### How do I provide custom arguments to QEMU?



    You can create the `ARGUMENTS` environment variable to provide additional arguments to QEMU at runtime:

src/disk.sh

+9 −1
Original line number Diff line number Diff line
@@ -4,7 +4,7 @@ set -Eeuo pipefail 
# Docker environment variables



: ${DISK_IO:='native'}    # I/O Mode, can be set to 'native', 'threads' or 'io_turing'

: ${DISK_FMT:='raw'}      # Disk file format, "raw" by default for backwards compatibility

: ${DISK_FMT:=''}      # Disk file format, can be set to "raw" or "qcow2" (default)

: ${DISK_CACHE:='none'}   # Caching mode, can be set to 'writeback' for better performance

: ${DISK_DISCARD:='on'}   # Controls whether unmap (TRIM) commands are passed to the host.

: ${DISK_ROTATION:='1'}   # Rotation rate, set to 1 for SSD storage and increase for HDD
@@ -261,6 +261,14 @@ addDisk () { 
  return 0

}



if [ -z "$DISK_FMT" ]; then

  if [ -f "$STORAGE/data.img" ]; then

    DISK_FMT="raw"

  else

    DISK_FMT="qcow2"

  fi

fi



DISK_EXT="$(fmt2ext "$DISK_FMT")" || exit $?



DISK1_FILE="$STORAGE/data"