Open Infrastructure

• User wants to have possibility to roll back in time

Implementation¶

• We can use ceph snapshots
• We might need/want to signal qemu before taking the snapshot
  • how?
  • Difference between uncloud and opennebula?

User facing API / CLI¶

• User can set a maximum amount of snapshots (?)
  • Useful for auto rotate
• User can configure a snapshot
• User can list all snapshots
• User can delete snapshots

Ideas for an CLI¶

ungleich-cli --username xx --password yy list-vms
ungleich-cli --username xx --password yy vm-snaphot-create <vmid>
ungleich-cli --username xx --password yy vm-snaphot-list <vmid>
ungleich-cli --username xx --password yy vm-snaphot-restore <vmid> <snapshot>
ungleich-cli --username xx --password yy vm-snaphot-delete <vmid> <snapshot>

Billing¶

Regular pricing - it's the same usage

• SSD storage 10GB/month@3.5CHF
• HDD storage 100GB/month@1.5CHF

Billed per gigabyte per second (?) basis (?)

Per second calculation: SSD¶

>>> (3.5/10.)/30/24/3600
1.3503086419753083e-07
>>> per_gb_per_second=((3.5/10.)/30/24/3600) 
>>> 1.36*10**(-7) * 10 * 86400 * 30
3.5251200000000003
>>> "{:0.9f}".format(1.36*10**(-7))
'0.000000136'
>>> 1.4*10**(-7) * 10 * 86400 * 30
3.628799999999999

• Could offer it for 0.00000014 CHF per GB per second
• Monthly would stay the same

• User wants to have possibility to roll back in time

Implementation¶

• We can use ceph snapshots
• We might need/want to signal qemu before taking the snapshot
  • how?
  • Difference between uncloud and opennebula?

User facing API / CLI¶

• User can set a maximum amount of snapshots (?)
  • Useful for auto rotate
• User can configure a snapshot
• User can list all snapshots
• User can delete snapshots

Billing¶

Regular pricing - it's the same usage

• SSD storage 10GB/month@3.5CHF
• HDD storage 100GB/month@1.5CHF

Billed per gigabyte per second (?) basis (?)

Per second calculation: SSD¶

>>> (3.5/10.)/30/24/3600
1.3503086419753083e-07
>>> per_gb_per_second=((3.5/10.)/30/24/3600) 
>>> 1.36*10**(-7) * 10 * 86400 * 30
3.5251200000000003
>>> "{:0.9f}".format(1.36*10**(-7))
'0.000000136'
>>> 1.4*10**(-7) * 10 * 86400 * 30
3.628799999999999

• Could offer it for 0.00000014 CHF per GB per second
• Monthly would stay the same

Per second calculation: HDD¶

>>> per_gb_per_second=((1.5/100.)/30/24/3600) 
>>> per_gb_per_second
5.787037037037037e-09
>>> 
>>> "{:0.10f}".format(per_gb_per_second)
'0.0000000058'
>>> 0.0000000058* 100 * 86400 * 30
1.5033599999999998

• Could offer for 0.0000000058 per gb per second
• However units will be smaller than 100gb packages

Testing¶

• Using my private VM
• Locating the disk image

[10:43:59] red2.place5:~# rbd -p one ls | grep 10761
one-60-10761-0
[10:44:14] red2.place5:~# 

• Does not show all attached disks -> need to go via opennebula api

Per second calculation: HDD¶

>>> per_gb_per_second=((1.5/100.)/30/24/3600) 
>>> per_gb_per_second
5.787037037037037e-09
>>> 
>>> "{:0.10f}".format(per_gb_per_second)
'0.0000000058'

Testing¶

• Using my private VM
• Locating the disk image

[10:43:59] red2.place5:~# rbd -p one ls | grep 10761
one-60-10761-0
[10:44:14] red2.place5:~# 

• Does not show all attached disks -> need to go via opennebula api

Steps¶

• Create a PoC for some VMs
  • record creation and deletion time is needed for billing later
• Implement a CLI to be used by staff (i.e. no customer auth)
• Integrate it into billing