问题
I'm creating an image from a running instance in OpenStack
nova image-create <server-name>
and i'm just wondering,can this image be uploaded to ec2? Or do i need to create an ami from it?
Can someone guide me on how to go about this?
回答1:
glance, the openstack image service is capable of storing a number of image types:
Raw
Machine (kernel/ramdisk outside of image, a.k.a. AMI)
VHD (Hyper-V)
VDI (VirtualBox)
qcow2 (Qemu/KVM)
VMDK (VMWare)
OVF (VMWare, others)
Ref: http://www.openstack.org/projects/image-service/
So basically. You can upload AMIs to openstack directly.
Example:
KERNEL_ID=`glance image-create --name="tty-linux-kernel" --disk-format=aki --container-format=aki < ttylinux-uec-amd64-12.1_2.6.35-22_1-vmlinuz | awk '/ id / { print $4 }'`
INITRD_ID=`glance image-create --name="tty-linux-ramdisk" --disk-format=ari --container-format=ari < ttylinux-uec-amd64-12.1_2.6.35-22_1-loader | awk '/ id / { print $4 }'`
glance image-create --name="tty-linux" --disk-format=ami --container-format=ami --property kernel_id=${KERNEL_ID} --property ramdisk_id=${INITRD_ID} < ttylinux-uec-amd64-12.1_2.6.35-22_1.img
When performing an image-create against a running instance
Images can only be created from running instances if Compute is configured to use qcow2 > images, which is the default setting. You can explicitly enable the use of qcow2 images > by adding the following line to nova.conf:
But assuming you are configured as such, yes it will output in AMI format.
Ref:
http://docs.openstack.org/trunk/openstack-compute/admin/content/creating-images-from-running-instances.html
来源：https://stackoverflow.com/questions/15451148/is-it-possible-to-create-an-ami-from-an-openstack-image