RE: How to migrate instances of OpenStack to Cloudstack.
We were able to get vmware images running in cloudstack with kvm hypervisor using qemu-img, but we also had to add the step of going in using a recovery image to switch all the disk lables from sdx to vdx since that's how they were being referenced once we switched hypervisors. Date: Mon, 15 Jul 2013 09:14:02 -0700 From: jason.pa...@oracle.com To: da...@gnsa.us CC: users@cloudstack.apache.org Subject: Re: How to migrate instances of OpenStack to Cloudstack. 1 out of 3 qemu-img or vhd-util conversions usually produce a vm that is corrupt or won't boot or that requires a ton of work to fix up. This is at least my experience. On 7/15/2013 9:08 AM, David Nalley wrote: I agree with this statement. Configuration of EL6 or Ubuntu or even Windows image should be trivial given configuration management. That said, I understand there are some situations where it isn't practical, or config management isn't in use. The technical answer is: For converting to/from KVM to to/from raw formats or VMDK qemu-img is your friend. For converting to/from VHD for xen, vhd-util is your friend, though there are several other apps out there. I have been in places where I had to use qemu-img to do conversions rather than 'doing it the right way' and it's worked well. If I had the option though, I think I'd have preferred to put config management in place and do it in that manner. --David On Mon, Jul 15, 2013 at 12:04 PM, Kirk Jantzer kirk.jant...@gmail.com wrote: It is my belief that the cloud is the IaaS and that the applications that run on the cloud should be built for failure of the IaaS: they (instances/applications) should be rapidly deployable. So, it shouldn't matter what cloud product (openstack/cloudstack/vmware/aws/etc...) you provide to your customers, they should be able to redeploy their application whereever they go or are given for IaaS. On Mon, Jul 15, 2013 at 11:57 AM, Jason Pavao jason.pa...@oracle.comwrote: This is a VERY high level of the steps, dealing with different Hyper-visors will produce varying results. Is there a low level guide to importing/exporting imagery between kvm, xen and vmware? Something concise enough to work well with any cloud? -jason On 7/14/2013 12:18 AM, Nils Vogels wrote: Hi Tao Lin, Currently, the only way known to me is 1) Stop the instance in OpenStack 2) Import the instance as a template 3) Create a new instance, based on that template 4) Run the new instance in CloudStack 5) Discard the OpenStack instance HTH HAND. Nils On Sun, Jul 14, 2013 at 7:50 AM, Tao Lin linba...@gmail.com wrote: Hi,all: Is there any method to move instances from Openstack to Cloudstack? Both OS and CS are using KVM as hypervisor. Best regards. -- Thanks. -Jason -- Regards, Kirk Jantzer c: (678) 561-5475 http://about.met/kirkjantzer -- Thanks. -Jason
Re: How to migrate instances of OpenStack to Cloudstack.
This is a VERY high level of the steps, dealing with different Hyper-visors will produce varying results. Is there a low level guide to importing/exporting imagery between kvm, xen and vmware? Something concise enough to work well with any cloud? -jason On 7/14/2013 12:18 AM, Nils Vogels wrote: Hi Tao Lin, Currently, the only way known to me is 1) Stop the instance in OpenStack 2) Import the instance as a template 3) Create a new instance, based on that template 4) Run the new instance in CloudStack 5) Discard the OpenStack instance HTH HAND. Nils On Sun, Jul 14, 2013 at 7:50 AM, Tao Lin linba...@gmail.com wrote: Hi,all: Is there any method to move instances from Openstack to Cloudstack? Both OS and CS are using KVM as hypervisor. Best regards. -- Thanks. -Jason
Re: How to migrate instances of OpenStack to Cloudstack.
I agree with this statement. Configuration of EL6 or Ubuntu or even Windows image should be trivial given configuration management. That said, I understand there are some situations where it isn't practical, or config management isn't in use. The technical answer is: For converting to/from KVM to to/from raw formats or VMDK qemu-img is your friend. For converting to/from VHD for xen, vhd-util is your friend, though there are several other apps out there. I have been in places where I had to use qemu-img to do conversions rather than 'doing it the right way' and it's worked well. If I had the option though, I think I'd have preferred to put config management in place and do it in that manner. --David On Mon, Jul 15, 2013 at 12:04 PM, Kirk Jantzer kirk.jant...@gmail.com wrote: It is my belief that the cloud is the IaaS and that the applications that run on the cloud should be built for failure of the IaaS: they (instances/applications) should be rapidly deployable. So, it shouldn't matter what cloud product (openstack/cloudstack/vmware/aws/etc...) you provide to your customers, they should be able to redeploy their application whereever they go or are given for IaaS. On Mon, Jul 15, 2013 at 11:57 AM, Jason Pavao jason.pa...@oracle.comwrote: This is a VERY high level of the steps, dealing with different Hyper-visors will produce varying results. Is there a low level guide to importing/exporting imagery between kvm, xen and vmware? Something concise enough to work well with any cloud? -jason On 7/14/2013 12:18 AM, Nils Vogels wrote: Hi Tao Lin, Currently, the only way known to me is 1) Stop the instance in OpenStack 2) Import the instance as a template 3) Create a new instance, based on that template 4) Run the new instance in CloudStack 5) Discard the OpenStack instance HTH HAND. Nils On Sun, Jul 14, 2013 at 7:50 AM, Tao Lin linba...@gmail.com wrote: Hi,all: Is there any method to move instances from Openstack to Cloudstack? Both OS and CS are using KVM as hypervisor. Best regards. -- Thanks. -Jason -- Regards, Kirk Jantzer c: (678) 561-5475 http://about.met/kirkjantzer
Re: How to migrate instances of OpenStack to Cloudstack.
Unfortunately that's not the case. I've had numerous issues importing/exporting vm imagery from clouds running different hypervisors. Importing/exporting from the same hypervisor type is fairly straight forward. -jason On 7/15/2013 9:04 AM, Kirk Jantzer wrote: It is my belief that the cloud is the IaaS and that the applications that run on the cloud should be built for failure of the IaaS: they (instances/applications) should be rapidly deployable. So, it shouldn't matter what cloud product (openstack/cloudstack/vmware/aws/etc...) you provide to your customers, they should be able to redeploy their application whereever they go or are given for IaaS. On Mon, Jul 15, 2013 at 11:57 AM, Jason Pavao jason.pa...@oracle.comwrote: This is a VERY high level of the steps, dealing with different Hyper-visors will produce varying results. Is there a low level guide to importing/exporting imagery between kvm, xen and vmware? Something concise enough to work well with any cloud? -jason On 7/14/2013 12:18 AM, Nils Vogels wrote: Hi Tao Lin, Currently, the only way known to me is 1) Stop the instance in OpenStack 2) Import the instance as a template 3) Create a new instance, based on that template 4) Run the new instance in CloudStack 5) Discard the OpenStack instance HTH HAND. Nils On Sun, Jul 14, 2013 at 7:50 AM, Tao Lin linba...@gmail.com wrote: Hi,all: Is there any method to move instances from Openstack to Cloudstack? Both OS and CS are using KVM as hypervisor. Best regards. -- Thanks. -Jason -- Thanks. -Jason
Re: How to migrate instances of OpenStack to Cloudstack.
That's because you shouldn't really be importing/exporting between clouds. The best way to avoid any issues would be to have your instances built from from a clean ISO install and then have them run post scripts or via a config manager (puppet, chef, etc...). This can be achieved in both Windows and Linux instances and will give you the most flexibility between any IaaS provider, hardware of cloud. On Mon, Jul 15, 2013 at 12:09 PM, Jason Pavao jason.pa...@oracle.comwrote: Unfortunately that's not the case. I've had numerous issues importing/exporting vm imagery from clouds running different hypervisors. Importing/exporting from the same hypervisor type is fairly straight forward. -jason On 7/15/2013 9:04 AM, Kirk Jantzer wrote: It is my belief that the cloud is the IaaS and that the applications that run on the cloud should be built for failure of the IaaS: they (instances/applications) should be rapidly deployable. So, it shouldn't matter what cloud product (openstack/cloudstack/vmware/**aws/etc...) you provide to your customers, they should be able to redeploy their application whereever they go or are given for IaaS. On Mon, Jul 15, 2013 at 11:57 AM, Jason Pavao jason.pa...@oracle.com wrote: This is a VERY high level of the steps, dealing with different Hyper-visors will produce varying results. Is there a low level guide to importing/exporting imagery between kvm, xen and vmware? Something concise enough to work well with any cloud? -jason On 7/14/2013 12:18 AM, Nils Vogels wrote: Hi Tao Lin, Currently, the only way known to me is 1) Stop the instance in OpenStack 2) Import the instance as a template 3) Create a new instance, based on that template 4) Run the new instance in CloudStack 5) Discard the OpenStack instance HTH HAND. Nils On Sun, Jul 14, 2013 at 7:50 AM, Tao Lin linba...@gmail.com wrote: Hi,all: Is there any method to move instances from Openstack to Cloudstack? Both OS and CS are using KVM as hypervisor. Best regards. -- Thanks. -Jason -- Thanks. -Jason -- Regards, Kirk Jantzer c: (678) 561-5475 http://about.met/kirkjantzer
Re: How to migrate instances of OpenStack to Cloudstack.
1 out of 3 qemu-img or vhd-util conversions usually produce a vm that is corrupt or won't boot or that requires a ton of work to fix up. This is at least my experience. On 7/15/2013 9:08 AM, David Nalley wrote: I agree with this statement. Configuration of EL6 or Ubuntu or even Windows image should be trivial given configuration management. That said, I understand there are some situations where it isn't practical, or config management isn't in use. The technical answer is: For converting to/from KVM to to/from raw formats or VMDK qemu-img is your friend. For converting to/from VHD for xen, vhd-util is your friend, though there are several other apps out there. I have been in places where I had to use qemu-img to do conversions rather than 'doing it the right way' and it's worked well. If I had the option though, I think I'd have preferred to put config management in place and do it in that manner. --David On Mon, Jul 15, 2013 at 12:04 PM, Kirk Jantzer kirk.jant...@gmail.com wrote: It is my belief that the cloud is the IaaS and that the applications that run on the cloud should be built for failure of the IaaS: they (instances/applications) should be rapidly deployable. So, it shouldn't matter what cloud product (openstack/cloudstack/vmware/aws/etc...) you provide to your customers, they should be able to redeploy their application whereever they go or are given for IaaS. On Mon, Jul 15, 2013 at 11:57 AM, Jason Pavao jason.pa...@oracle.comwrote: This is a VERY high level of the steps, dealing with different Hyper-visors will produce varying results. Is there a low level guide to importing/exporting imagery between kvm, xen and vmware? Something concise enough to work well with any cloud? -jason On 7/14/2013 12:18 AM, Nils Vogels wrote: Hi Tao Lin, Currently, the only way known to me is 1) Stop the instance in OpenStack 2) Import the instance as a template 3) Create a new instance, based on that template 4) Run the new instance in CloudStack 5) Discard the OpenStack instance HTH HAND. Nils On Sun, Jul 14, 2013 at 7:50 AM, Tao Lin linba...@gmail.com wrote: Hi,all: Is there any method to move instances from Openstack to Cloudstack? Both OS and CS are using KVM as hypervisor. Best regards. -- Thanks. -Jason -- Regards, Kirk Jantzer c: (678) 561-5475 http://about.met/kirkjantzer -- Thanks. -Jason
Re: How to migrate instances of OpenStack to Cloudstack.
Hi Tao Lin, Currently, the only way known to me is 1) Stop the instance in OpenStack 2) Import the instance as a template 3) Create a new instance, based on that template 4) Run the new instance in CloudStack 5) Discard the OpenStack instance HTH HAND. Nils On Sun, Jul 14, 2013 at 7:50 AM, Tao Lin linba...@gmail.com wrote: Hi,all: Is there any method to move instances from Openstack to Cloudstack? Both OS and CS are using KVM as hypervisor. Best regards. -- Simple guidelines to happiness: Work like you don't need the money, Love like your heart has never been broken and Dance like no one can see you.
