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guides-infrastructure-initial-setup.md

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Contents

Proxmox

Preparing Proxmox

Following changes need to be made after a stock install of Proxmox.

Configure local storage

The local storage module needs to be updated to accept storage of Disk Image. This can be done from the Proxmox UI.

  • Click Datacenter
  • Click Storage
  • Double click on local
  • In the Content drop down select Disk Image
  • Click OK

Creating Cloud-init templates

Cloud-init templates are used for easy deployment of VMs. Cloud-init allows auto configuration such as auto resize filesystem, network settings, default username and its SSH keys. This only needs to be done once per distro.

These tasks need to be done over SSH tunnel or over the VPN

  • Debian 10

    wget https://cdimage.debian.org/cdimage/openstack/10.11.0/debian-10.11.0-openstack-amd64.qcow2 -O debian-10.qcow2
qm create 9000 --memory 1024 --net0 virtio,bridge=vmbr2 --name cloud-init-debian-10
qm importdisk 9000 debian-10.qcow2 local --format qcow2
qm set 9000 --scsihw virtio-scsi-pci --virtio0 local:9000/vm-9000-disk-0.qcow2
qm set 9000 --cpu host
qm set 9000 --ide2 local:cloudinit
qm set 9000 --boot c --bootdisk virtio0
qm set 9000 --serial0 socket --vga serial0
qm set 9000 --vga std
qm set 9000 --ostype l26

    We need to modify the stock image to include resolvconf to update resolv.conf from Cloud-init We will do this by mapping the qcow2 disk image to a nbd device, mounting it, and making the modifications in a chroot environment

    modprobe nbd max_part=8
qemu-nbd --connect=/dev/nbd0 /var/lib/vz/images/9000/vm-9000-disk-0.qcow2
mkdir tmp
mount mount /dev/nbd0p1 tmp
cd tmp
chroot .
echo "nameserver 1.1.1.1" > /etc/resolv.conf
apt update
apt install resolvconf
exit
cd ..
umount tmp
rm -rf tmp
qemu-nbd --disconnect /dev/nbd0
sleep 5
rmmod nbd

    Now we can convert to template.

    qm template 9000

  • Ubuntu 16.04

    wget https://cloud-images.ubuntu.com/xenial/current/xenial-server-cloudimg-amd64-disk1.img
qm create 9001 --memory 1024 --net0 virtio,bridge=vmbr2 --name cloud-init-ubuntu-16.04
qm importdisk 9001 xenial-server-cloudimg-amd64-disk1.img local --format qcow2
qm set 9001 --scsihw virtio-scsi-pci --virtio0 local:9001/vm-9001-disk-0.qcow2
qm set 9001 --cpu host
qm set 9001 --ide2 local:cloudinit
qm set 9001 --boot c --bootdisk virtio0
qm set 9001 --serial0 socket --vga serial0
qm set 9001 --vga std
qm set 9001 --ostype l26
qm template 9001

  • Ubuntu 20.04

    wget https://cloud-images.ubuntu.com/focal/current/focal-server-cloudimg-amd64-disk-kvm.img
qm create 9002 --memory 1024 --net0 virtio,bridge=vmbr2 --name cloud-init-ubuntu-20.04
qm importdisk 9002 focal-server-cloudimg-amd64-disk-kvm.img local --format qcow2
qm set 9002 --scsihw virtio-scsi-pci --virtio0 local:9002/vm-9002-disk-0.qcow2
qm set 9002 --cpu host
qm set 9002 --ide2 local:cloudinit
qm set 9002 --boot c --bootdisk virtio0
qm set 9002 --serial0 socket --vga serial0
qm set 9002 --vga std
qm set 9002 --ostype l26
qm template 9002