[why] libvirt can boot a vm based on a xml file named domain.xml. it contains many elements like os, device, cpu.

to meet a requirements of a single module or a combination of multiple modules. split the domain.xml may be better.

here are some scenarios: case 1: the user provides a complete domain.xml file case 2: the user only provides a cpu.xml template case 3: the user provides cpu.xml and disk.xml or other templates

Signed-off-by: Xiao Shenwei xiaoshenwei96@163.com --- providers/libvirt/templates/active.xml | 3 +++ providers/libvirt/templates/clock.xml | 5 +++++ providers/libvirt/templates/cpu.xml | 3 +++ providers/libvirt/templates/devices.xml | 3 +++ providers/libvirt/templates/disk.xml | 7 +++++++ providers/libvirt/templates/domain.xml | 10 ++++++++++ providers/libvirt/templates/emulator.xml | 1 + providers/libvirt/templates/interface.xml | 6 ++++++ providers/libvirt/templates/memory.xml | 1 + providers/libvirt/templates/name.xml | 1 + providers/libvirt/templates/options.yaml | 23 +++++++++++++++++++++++ providers/libvirt/templates/os.xml | 8 ++++++++ providers/libvirt/templates/seclabel.xml | 4 ++++ providers/libvirt/templates/serial.xml | 4 ++++ 14 files changed, 79 insertions(+) create mode 100644 providers/libvirt/templates/active.xml create mode 100644 providers/libvirt/templates/clock.xml create mode 100644 providers/libvirt/templates/cpu.xml create mode 100644 providers/libvirt/templates/devices.xml create mode 100644 providers/libvirt/templates/disk.xml create mode 100644 providers/libvirt/templates/domain.xml create mode 100644 providers/libvirt/templates/emulator.xml create mode 100644 providers/libvirt/templates/interface.xml create mode 100644 providers/libvirt/templates/memory.xml create mode 100644 providers/libvirt/templates/name.xml create mode 100644 providers/libvirt/templates/options.yaml create mode 100644 providers/libvirt/templates/os.xml create mode 100644 providers/libvirt/templates/seclabel.xml create mode 100644 providers/libvirt/templates/serial.xml

diff --git a/providers/libvirt/templates/active.xml b/providers/libvirt/templates/active.xml new file mode 100644 index 0000000..8ed7ee4 --- /dev/null +++ b/providers/libvirt/templates/active.xml @@ -0,0 +1,3 @@ +<on_poweroff>destroy</on_poweroff> +<on_reboot>destroy</on_reboot> +<on_crash>destroy</on_crash> diff --git a/providers/libvirt/templates/clock.xml b/providers/libvirt/templates/clock.xml new file mode 100644 index 0000000..12d0ef8 --- /dev/null +++ b/providers/libvirt/templates/clock.xml @@ -0,0 +1,5 @@ +<clock offset='utc'> + <timer name='rtc' tickpolicy='catchup' track='guest'/> + <timer name='hpet' present='no'/> + <timer name='pit' tickpolicy='delay'/> +</clock> diff --git a/providers/libvirt/templates/cpu.xml b/providers/libvirt/templates/cpu.xml new file mode 100644 index 0000000..1f95dc6 --- /dev/null +++ b/providers/libvirt/templates/cpu.xml @@ -0,0 +1,3 @@ +<vcpu placement='static'><%= nr_cpu %></vcpu> +<cpu mode='host-passthrough' check='none'> +</cpu> diff --git a/providers/libvirt/templates/devices.xml b/providers/libvirt/templates/devices.xml new file mode 100644 index 0000000..83cd847 --- /dev/null +++ b/providers/libvirt/templates/devices.xml @@ -0,0 +1,3 @@ +<devices> + <graphics type='vnc' autoport='yes' listen='0.0.0.0'><graphics> +</devices> diff --git a/providers/libvirt/templates/disk.xml b/providers/libvirt/templates/disk.xml new file mode 100644 index 0000000..7aecef0 --- /dev/null +++ b/providers/libvirt/templates/disk.xml @@ -0,0 +1,7 @@ +<% if disk %> +<disk type='block' device='disk'> + <driver name='qemu' type='raw'/> + <source dev='<%= disk %>'/> + <target dev='vda' bus='virtio'/> +</disk> +<% end %> diff --git a/providers/libvirt/templates/domain.xml b/providers/libvirt/templates/domain.xml new file mode 100644 index 0000000..a3fdb63 --- /dev/null +++ b/providers/libvirt/templates/domain.xml @@ -0,0 +1,10 @@ +<?xml version="1.0" character="utf-8"?> +<domain type='kvm'> + <resource> + <partition>/machine</partition> + </resource> + <features> + <acpi/> + <gic version='3'/> + </features> +</domain> diff --git a/providers/libvirt/templates/emulator.xml b/providers/libvirt/templates/emulator.xml new file mode 100644 index 0000000..e915215 --- /dev/null +++ b/providers/libvirt/templates/emulator.xml @@ -0,0 +1 @@ +<emulator><%=qemu_path%></emulator> diff --git a/providers/libvirt/templates/interface.xml b/providers/libvirt/templates/interface.xml new file mode 100644 index 0000000..5d4c04f --- /dev/null +++ b/providers/libvirt/templates/interface.xml @@ -0,0 +1,6 @@ +<interface type='bridge'> + <source bridge='br0'/> + <mac address='<%= mac %>'/> + <target dev='vnet0'/> + <model type='virtio'/> +</interface> diff --git a/providers/libvirt/templates/memory.xml b/providers/libvirt/templates/memory.xml new file mode 100644 index 0000000..34aec49 --- /dev/null +++ b/providers/libvirt/templates/memory.xml @@ -0,0 +1 @@ +<memory unit='GiB'><%= memory.to_i %></memory> diff --git a/providers/libvirt/templates/name.xml b/providers/libvirt/templates/name.xml new file mode 100644 index 0000000..5dc98f4 --- /dev/null +++ b/providers/libvirt/templates/name.xml @@ -0,0 +1 @@ +<name><%= job_id %></name> diff --git a/providers/libvirt/templates/options.yaml b/providers/libvirt/templates/options.yaml new file mode 100644 index 0000000..c41ee29 --- /dev/null +++ b/providers/libvirt/templates/options.yaml @@ -0,0 +1,23 @@ +# Domain option: +# use templates/domain.xml if user not specified. +domain: domain + +# Default options: +# these elements must be replaced for each domain.xml. +default: + - name + - os + - memory + - serial + - interface + - active + - emulator + +# Replaceable options: +# these elements can be replaced by user configurations. +replaceable: + - devices + - cpu + - seclabel + - disk + - clock diff --git a/providers/libvirt/templates/os.xml b/providers/libvirt/templates/os.xml new file mode 100644 index 0000000..3ac880d --- /dev/null +++ b/providers/libvirt/templates/os.xml @@ -0,0 +1,8 @@ +<os> + <type arch='<%= arch %>' machine='virt'>hvm</type> + <loader readonly='yes' type='pflash'>/usr/share/edk2/aarch64/QEMU_EFI-pflash.raw</loader> + <kernel><%= kernel %></kernel> + <initrd><%= initrd %></initrd> + <cmdline><%= cmdline %></cmdline> + <nvram>/var/lib/libvirt/qemu/nvram/<%= job_id %>.fd</nvram> +</os> diff --git a/providers/libvirt/templates/seclabel.xml b/providers/libvirt/templates/seclabel.xml new file mode 100644 index 0000000..5c10a77 --- /dev/null +++ b/providers/libvirt/templates/seclabel.xml @@ -0,0 +1,4 @@ +<seclabel type='dynamic' model='dac' relabel='yes'> + <label>+0:+0</label> + <imagelabel>+0:+0</imagelabel> +</seclabel> diff --git a/providers/libvirt/templates/serial.xml b/providers/libvirt/templates/serial.xml new file mode 100644 index 0000000..2edc882 --- /dev/null +++ b/providers/libvirt/templates/serial.xml @@ -0,0 +1,4 @@ +<serial type='file'> + <source path="<%= log_file %>"/> + <target port="0"/> +</serial>