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add libvirt playbook

This commit is contained in:
Andrew Wang 2021-09-12 16:32:12 -04:00
parent 45742ccac7
commit 1f16debf42
10 changed files with 208 additions and 103 deletions
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3
.gitignore vendored Normal file
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@ -0,0 +1,3 @@
*.iso
disks/

0
kvm-vm.yml
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106
libvirt/main.yml Normal file
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```
- name: Create mirror Vm
hosts: localhost
connection: local
tasks:
- name: Check for ubuntu iso
stat:
path: {{ playbook_dir }}/ubuntu.iso
register: isoexists
ignore_errors: true
- name: Check for ubuntu iso seed
stat:
path: {{ playbook_dir }}/ubuntu-seed.qcow2
register: seedexists
ignore_errors: true
- name: Check if storage pool exists
command: virsh pool-info mirror
register: poolexists
ignore_errors: true
- name: Check if mirbr0 network exists
command: virsh net-info mirbr0
register: netexists
ignore_errors: true
- name: Check if mirror VM exists
command: virsh dumpxml mirror
register: vmexists
ignore_errors: true
- name: enable and start libvirt daemon
systemd:
name: libvirtd
enabled: true
state: started
- name: Download ubuntu iso
# make sure curl is installed ?
command: >
curl
-o {{ playbook_dir }}/ubuntu.iso
https://releases.ubuntu.com/20.04/ubuntu-20.04.2-live-server-amd64.iso
when: isoexists.stat.exists == False
- name: Create ubuntu iso
# install cloud-localds (cloud-image-utils)
#
# Installing VMs from Ready Images
# https://www.x386.xyz/index.php/2021/01/06/kvm-on-ubuntu-server-1/
command: >
cloud-localds
# --network-config {{ playbook_dir }}/templates/network
{{ playbook_dir }}/ubuntu-seed.qcow2
{{ playbook_dir }}/templates/user-data
when: seedexists.stat.exists == False
- name: Create storage pool and virtual disks for mirror
file:
path: {{ playbook_dir }}/disks
state: directory
owner: root
group: root
mode: 0711
command: "virsh {{ item }}"
with_items:
- pool-define-as mirror dir --target="{{ playbook_dir }}/disks"
- pool-build mirror
- pool-start mirror
- pool-autostart mirror
command: "virsh vol-create-as mirror {{ item }}"
with_items:
- mirror_root1.qcow2 10G
- mirror_root2.qcow2 10G
- mirror_disk1.qcow2 10G
- mirror_disk2.qcow2 10G
- mirror_disk3.qcow2 10G
- mirror_disk4.qcow2 10G
when: not poolexists.rc == 0
- name: Create bridge network
# net.ipv4.ip_forward = 1
command: "virsh {{ item }}"
with_items:
- net-define {{ playbook_dir }}/templates/network.xml
- net-autostart mirbr0
- net-start mirbr0
when: not netexists.rc == 0
- name: Create mirror VM
command: >
virt-install
--name=mirror
--memory=2048
--vcpus=1
--boot uefi
--os-type linux --os-variant ubuntu20.04
--disk path={{ playbook_dir }}/ubuntu-seed.qcow2,device=cdrom
--disk vol=mirror/mirror_root1.qcow2
--disk vol=mirror/mirror_root2.qcow2
--disk vol=mirror/mirror_disk1.qcow2
--disk vol=mirror/mirror_disk2.qcow2
--disk vol=mirror/mirror_disk3.qcow2
--disk vol=mirror/mirror_disk4.qcow2
--network bridge=mirbr0
--graphics vnc,port=5911,listen=127.0.0.1
--noautoconsole
when: not vmexists.rc == 0
# in the vm to disable cloud-init run
# sudo touch /etc/cloud/cloud-init.disabled
# next
# wait ? seconds (hope that vm is made in forgroud)
# update ssh config to allow root login (and add passwd to root)
# copy pub key and relogin as root

35
todo/vm-install-op2/mirror.txt → libvirt/mirror.txt
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@ -10,43 +10,8 @@ $ apt install qemu-kvm libvirt virt-install virt-viewer
install (arch)
$ pacman -S qemu libvirt virt-install virt-viewer
start and set autostart libvirtd
$ systemctl enable --now libvirtd
$ virsh
troubleshooting: try to load the kvm module with `modprobe kvm_intel`
create storage pool for mirror
> pool-define-as mirror dir --target="~/.local/mirror/images"
> pool-build mirror
> pool-start mirror
> pool-autostart mirror
create virtual disks
> vol-create-as mirror mirror_root1.qcow2 10G
> vol-create-as mirror mirror_root2.qcow2 10G
> vol-create-as mirror mirror_disk1.qcow2 5G
> vol-create-as mirror mirror_disk2.qcow2 5G
> vol-create-as mirror mirror_disk3.qcow2 5G
> vol-create-as mirror mirror_disk4.qcow2 5G
(exit virsh shell)
get ubuntu iso
$ curl -O https://releases.ubuntu.com/20.04/ubuntu-20.04.2-live-server-amd64.iso
create the vm
$ virt-install \
--name=mirror \
--memory=2048 \
--vcpus=1 \
--boot uefi \
--location="./ubuntu-20.04.2-live-server-amd64.iso" \
--disk vol=mirror/mirror_root1.qcow2 \
--disk vol=mirror/mirror_root2.qcow2 \
--disk vol=mirror/mirror_disk1.qcow2 \
--disk vol=mirror/mirror_disk2.qcow2 \
--disk vol=mirror/mirror_disk3.qcow2 \
--disk vol=mirror/mirror_disk4.qcow2 \
interface should automatically come up but can also use
$ virt-viewer --domain-name mirror
if vm is on a remote machine

12
libvirt/templates/network Normal file
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# set up static ip
# https://askubuntu.com/questions/1029531/how-to-setup-a-static-ip-on-ubuntu-server-18-04
#cloud-config
version: 2
ethernets:
enp1s0:
dhcp4: false
addresses: [ 192.168.0.221/24 ]
gateway4: 192.168.0.1
nameservers:
addresses: [ 192.168.0.1,8.8.8.8 ]

0
todo/vm-install-op2/mirrornetwork.xml → libvirt/templates/network.xml
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60
libvirt/templates/user-data Normal file
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#cloud-config
autoinstall:
version: 1
identity:
hostname: mirror
username: ubuntu
# mkpasswd --method=SHA-512 --rounds=4096
# password is just ubuntu
password: "$6$exDY1mhS4KUYCE/2$zmn9ToZwTKLhCw.b4/b.ZRTIZM30JZ4QrOQ2aOXJ8yk96xpcCof0kxKwuX1kqLG/ygbJ1f8wxED22bTL4F46P0"
locale: en_US
ssh:
allow-pw: true
authorized-keys: []
install-server: true
storage:
config:
# disks =-=-=-=-=-=-=
- {id: vda, name: '', path: /dev/vda, type: disk, ptable: gpt,
preserve: false, grub_device: false}
- {id: vdb, name: '', path: /dev/vdb, type: disk, ptable: gpt,
preserve: false, grub_device: false}
# partitions =-=-=-=-=-=
# vda1
- {id: vda1, type: partition, size: 500M, device: vda, number: 1,
preserve: false, wipe: superblock, flag: boot, grub_device: true}
- {id: vda1-format, type: format, volume: vda1,
fstype: fat32, preserve: false}
# vda2
- {id: vda2, type: partition, size: 9G, device: vda, number: 2,
preserve: false, wipe: superblock, flag: '', grub_device: false}
# vdb1
- {id: vdb1, type: partition, size: 500M, device: vdb, number: 1,
preserve: false, wipe: superblock, flag: boot, grub_device: true}
- {id: vdb1-format, type: format, volume: vdb1,
fstype: fat32, preserve: false}
# vdb2
- {id: vdb2, type: partition, size: 9G, device: vdb, number: 2,
preserve: false, wipe: superblock, flag: '', grub_device: false}
# raid =-=-=-=-=-=
- id: md0
name: md0
type: raid
raidlevel: raid1
devices: [vda2, vdb2]
spare_devices: []
preserve: false
# lvm =-=-=-=-=-=
- id: vg0
name: vg0
type: lvm_volgroup
devices: [md0]
preserve: false
# partition
- {id: vg0-root, name: root, type: lvm_partition, size: 8G,
preserve: false, volgroup: vg0}
- {id: vg0-root-format, type: format, volume: vg0-root,
fstype: ext4, preserve: false}
# mount points =-=-=-=-=-=
- {id: boot-mount, type: mount, path: /boot/efi, device: vda1-format}
- {id: root-mount, type: mount, path: /, device: vg0-root-format}

25
todo/vm-install-op2/thing → libvirt/thing
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@ -28,3 +28,28 @@ create network and storage interface?
<listen type='address' address='127.0.0.1'/>
</graphics>
interface should automatically come up but can also use
$ virt-viewer --domain-name mirror
if vm is on a remote machine
$ virt-viewer --connect qemu+ssh://user@host.example.com/system vmnamehere
for now just have a folder of screenshots
- change name of lvm volume from "lv0-root" to just "root"
troubleshooting: ignore "failed to unmount /cdrom" and just ctrl+c in viewer
login into your created user (from install), change to root, and create password for root
$ sudo su
type in your password
$ passwd
create root password
create zpool (use /dev/disk/by-id/.. instead)
$ apt update
$ apt install zfsutils-linux nginx rsync
$ mkdir -p /mirror/root/.cscmirror
$ zpool create -f -m /mirror/root/.cscmirror cscmirror raidz2 /dev/vdc /dev/vdd /dev/vde /dev/vdf
may already be mounted but just to be sure
$ zfs mount -a

3
todo/README.md
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@ -1,5 +1,6 @@
## TODO
modify configs when appropriate
- modify configs when appropriate
- net.ipv4.ip_forward=1 for both host and vm
### Storage
symlink projects from `/mirror/root/.cscmirror` to `/mirror/root`

67
todo/vm-install-op2/main.yml
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@ -1,67 +0,0 @@
---
- name: create mirror vm
hosts: localhost
connection: local
start and set autostart libvirtd
$ systemctl enable --now libvirtd
$ virsh
troubleshooting: try to load the kvm module with `modprobe kvm_intel`
create storage pool for mirror
> pool-define-as mirror dir --target="~/.local/mirror/images"
> pool-build mirror
> pool-start mirror
> pool-autostart mirror
create virtual disks
> vol-create-as mirror mirror_root1.qcow2 10G
> vol-create-as mirror mirror_root2.qcow2 10G
> vol-create-as mirror mirror_disk1.qcow2 5G
> vol-create-as mirror mirror_disk2.qcow2 5G
> vol-create-as mirror mirror_disk3.qcow2 5G
> vol-create-as mirror mirror_disk4.qcow2 5G
(exit virsh shell)
get ubuntu iso
$ curl -O https://releases.ubuntu.com/20.04/ubuntu-20.04.2-live-server-amd64.iso
create the vm
$ virt-install \
--name=mirror \
--memory=2048 \
--vcpus=1 \
--boot uefi \
--location="./ubuntu-20.04.2-live-server-amd64.iso" \
--disk vol=mirror/mirror_root1.qcow2 \
--disk vol=mirror/mirror_root2.qcow2 \
--disk vol=mirror/mirror_disk1.qcow2 \
--disk vol=mirror/mirror_disk2.qcow2 \
--disk vol=mirror/mirror_disk3.qcow2 \
--disk vol=mirror/mirror_disk4.qcow2 \
interface should automatically come up but can also use
$ virt-viewer --domain-name mirror
if vm is on a remote machine
$ virt-viewer --connect qemu+ssh://user@host.example.com/system vmnamehere
for now just have a folder of screenshots
- change name of lvm volume from "lv0-root" to just "root"
troubleshooting: ignore "failed to unmount /cdrom" and just ctrl+c in viewer
login into your created user (from install), change to root, and create password for root
$ sudo su
type in your password
$ passwd
create root password
create zpool (use /dev/disk/by-id/.. instead)
$ apt update
$ apt install zfsutils-linux nginx rsync
$ mkdir -p /mirror/root/.cscmirror
$ zpool create -f -m /mirror/root/.cscmirror cscmirror raidz2 /dev/vdc /dev/vdd /dev/vde /dev/vdf
may already be mounted but just to be sure
$ zfs mount -a