Features

Once you have uploaded a custom image to your centron account, you can create ccloud³ VMs based on that image. When you upload a custom image, select a region in which it should be available. You can create ccloud³ VMs based on a custom image in that region and make your custom image available in additional regions at any time.

You can find official, cloud-friendly Unix-like OS images on OpenStack, or create your own using your preferred VM software.

Image requirements: The images you upload to centron must meet the following requirements:

• Operating system: The images must run on a Unix-like operating system.
• File format: The images must be in one of the following file formats:
  • Raw (.img) with an MBR or GPT partition table
  • qcow2
  • VHDX
  • VDI
  • VMDK
• Size: The images must not exceed 100 GB (uncompressed, including the file system).
• File system: The images must support the ext3 or ext4 file systems.
• cloud-init: The images must have cloud-init 0.7.7 or later, cloudbase-init, coreos-cloudinit, ignition or bsd-cloudinit installed and correctly configured. If your image’s default cloud-init configuration lists the NoCloud data source before the ConfigDrive data source, ccloud³ VMs created from your image may not function correctly.
• SSH configuration: The images must have sshd installed and configured to run at boot time. If your image does not have sshd set up, you will not have SSH access to ccloud³ VMs created from that image, unless you restore access via the recovery console.

You can also upload a custom image that meets the above criteria as a compressed gzip or bzip2 file.