Differences between revisions 1 and 7 (spanning 6 versions)

Domain Creation

A domain is really the virtual machine. Creating a new domain is just one simple command. virt-install. It takes a lot of parameters though, it is adviseable to read the virt-install manpage.

Creation

Use the following script to create your domains.

createdomain.sh

NAME="stretch-template"
RAM="1024"
LVM_SIZE="4G"
LVM_GROUP="vg2"
GRAPHICS_PROTOCOL="spice" #spice, vnc
OS="debian9"
MEDIA="/mnt/media/debian/stretch/debian-9.1.0-amd64-netinst.iso"

if [ $# -eq 0 ]
then
        echo "${0}: domain-name"
else
        NAME=${1}
fi
LVM_NAME="kvm_${NAME}_vda"

if [ ! -e /dev/${LVM_GROUP}/${LVM_NAME} ]
then

        # create lvm partition
        lvcreate --size ${LVM_SIZE} --name ${LVM_NAME} ${LVM_GROUP}

        # create the virtual machine
        virt-install --name ${NAME} --memory ${RAM} --disk /dev/${LVM_GROUP}/${LVM_NAME},bus=virtio,format=raw --os-variant ${OS} --network bridge=br0,model=virtio --cdrom ${MEDIA} --graphics ${GRAPHICS_PROTOCOL},listen=192.168.1.33,password=${NAME} --noautoconsole --virt-type kvm
else
        echo "${0}: refusing to overwrite existing domain"
fi

Parameters

`--name`	Give the domain its name. This name is used byt the virsh software as a reference to the domain.
`--memory`	The amount of memory for the domain. Setting a high value to make the istallation run smoother can be a good idea. It is possible to lower the memory later on.
`--disk`	The place where the domain has its virtual disk. Here it is an lvm volume using the raw format, but other formats can be used.
`--os-variant`	Determines the OS running in the domain.
`--network`	Configure the network interface.
`--cdrom`	Set the installation media.
`--graphics`	Configure the guest console.
`--noautoconsole`	Do not try to connect to the guest console, just start the domain.
`--virt-type`	Set the hypervisor.

-  ⇤ ← Revision 1 as of 2017-10-12 20:28:58 → 
  Size: 1102
  Editor: shran
  Comment:
+   ← Revision 7 as of 2017-10-12 20:57:01 → ⇥
  Size: 1964
  Editor: shran
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
 Line 3:
-A domain is really the virtual machine. Creating a new domain is just one simple command. `virt-install`. It takes a lot of parameters though, so I created a script to make domain creation a bit easier.
+A domain is really the virtual machine. Creating a new domain is just one simple command. `virt-install`. It takes a lot of parameters though, it is adviseable to read the virt-install manpage.
 Line 5:
+== Creation ==
Use the following script to create your domains.

`createdomain.sh`
-Line 32:
+Line 36:
-        echo "${0}: refusing to overwrite existing domain";
+        echo "${0}: refusing to overwrite existing domain"
-Line 35:
+Line 39:
+== Parameters ==
||`--name`||Give the domain its name. This name is used byt the virsh software as a reference to the domain.||
||`--memory`||The amount of memory for the domain. Setting a high value to make the istallation run smoother can be a good idea. It is possible to lower the memory later on.||
||`--disk`||The place where the domain has its virtual disk. Here it is an lvm volume using the raw format, but other formats can be used.||
||`--os-variant`||Determines the OS running in the domain.||
||`--network`||Configure the network interface.||
||`--cdrom`||Set the installation media.||
||`--graphics`||Configure the guest console.||
||`--noautoconsole`||Do not try to connect to the guest console, just start the domain.||
||`--virt-type`||Set the hypervisor.||