Add script to auto-create Ubuntu20 template with cloud-init in PVE

cloud-init/create_ubuntu20_template.sh

@@ -0,0 +1,31 @@
+#!/bin/sh
+
+_storage=${1}
+pvesm status --enabled --target localhost --content images |awk {'print $1'} |tail +2 |grep "$_storage"  > /dev/null 2>&1
+if [ "$?" -ne "0" ]; then
+        echo "Storage $_storage does not seems to exists. Use 'pvesm status' to find a usable storage"
+        exit 1
+fi
+
+/usr/sbin/qm status 9999 > /dev/null 2>&1
+if [ "$?" -ne "2" ]; then
+	echo "VM9999 already exists, aborting"
+	exit 1
+fi
+
+echo "Storage $_storage is valid and VM does not exists, let's get the latest Ubuntu-minimal image from repo"
+
+# Récupération de l'image Ubuntu
+#curl --progress-bar -o ubuntu-20.04-minimal-cloudimg-amd64.img https://cloud-images.ubuntu.com/minimal/releases/focal/release/ubuntu-20.04-minimal-cloudimg-amd64.img
+
+# Silently download public SSH key
+curl -s -o support@altinea.fr.pub https://gitlab.altinea.fr/altinea/install-scripts/raw/branch/master/ssh/support@altinea.fr.pub
+
+/usr/sbin/qm create 9999 --memory 1024 --net0 virtio,bridge=vmbr0
+/usr/sbin/qm importdisk 9999 ubuntu-20.04-minimal-cloudimg-amd64.img $_storage
+/usr/sbin/qm set 9999 --scsihw virtio-scsi-pci --scsi0 $_storage:vm-9999-disk-0,discard=on
+/usr/sbin/qm set 9999 --ide2 $_storage:cloudinit --boot c --bootdisk scsi0 --serial0 socket --vga serial0
+/usr/sbin/qm template 9999
+/usr/sbin/qm set 9999 --args "-cpu 'kvm64,+ssse3,+sse4.1,+sse4.2,+x2apic'" --ciuser root --ipconfig0 ip=dhcp,ip6=dhcp --sshkeys support@altinea.fr.pub --name "Ubuntu20.04" --agent enabled=1
+
+echo "All done, you can now clone VM9999 (Ubuntu20.04) from PVE interface"