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Posted to dev@stratos.apache.org by Udara Liyanage <ud...@wso2.com> on 2014/01/07 07:59:42 UTC
Attach a persistance volume to an instance startup
Hi,
I was in the process of implementing $subject for Stratos. I was able to
attach a volume in Amazon EC2. Though the volume is attached, currently we
have to mount the volume manually. Following are the solutions that I am
thinking of now.
1) send the volume disk name via payload so within the agent shell script
we can manually mount the volume.
2) find a way of mounting using jclouds
2) find a way to automatically mount from the IAAS side.
I think 1) is possible. Any better suggestions appreciated?
--
Udara Liyanage
Software Engineer
WSO2, Inc.: http://wso2.com
lean. enterprise. middleware
web: http://udaraliyanage.wordpress.com
phone: +94 71 443 6897
Re: Attach a persistance volume to an instance startup
Posted by Imesh Gunaratne <im...@apache.org>.
Yes option 1 would be clean and easier to handle.
In addition to this we might need to un-mount the volume(s) when the
instance is shutting down.
On Tue, Jan 7, 2014 at 4:10 AM, Lakmal Warusawithana <la...@wso2.com>wrote:
>
>
>
> On Tue, Jan 7, 2014 at 12:29 PM, Udara Liyanage <ud...@wso2.com> wrote:
>
>> Hi,
>>
>> I was in the process of implementing $subject for Stratos. I was able to
>> attach a volume in Amazon EC2. Though the volume is attached, currently we
>> have to mount the volume manually. Following are the solutions that I am
>> thinking of now.
>>
>> 1) send the volume disk name via payload so within the agent shell script
>> we can manually mount the volume.
>> 2) find a way of mounting using jclouds
>> 2) find a way to automatically mount from the IAAS side.
>>
>> I think 1) is possible. Any better suggestions appreciated?
>>
>
> +1 for 1.
>
>
>>
>>
>> --
>> Udara Liyanage
>> Software Engineer
>> WSO2, Inc.: http://wso2.com
>> lean. enterprise. middleware
>>
>> web: http://udaraliyanage.wordpress.com
>> phone: +94 71 443 6897
>>
>
>
>
> --
> Lakmal Warusawithana
> Software Architect; WSO2 Inc.
> Mobile : +94714289692
> Blog : http://lakmalsview.blogspot.com/
>
>
Re: Attach a persistance volume to an instance startup
Posted by Lakmal Warusawithana <la...@wso2.com>.
On Tue, Jan 7, 2014 at 12:29 PM, Udara Liyanage <ud...@wso2.com> wrote:
> Hi,
>
> I was in the process of implementing $subject for Stratos. I was able to
> attach a volume in Amazon EC2. Though the volume is attached, currently we
> have to mount the volume manually. Following are the solutions that I am
> thinking of now.
>
> 1) send the volume disk name via payload so within the agent shell script
> we can manually mount the volume.
> 2) find a way of mounting using jclouds
> 2) find a way to automatically mount from the IAAS side.
>
> I think 1) is possible. Any better suggestions appreciated?
>
+1 for 1.
>
>
> --
> Udara Liyanage
> Software Engineer
> WSO2, Inc.: http://wso2.com
> lean. enterprise. middleware
>
> web: http://udaraliyanage.wordpress.com
> phone: +94 71 443 6897
>
--
Lakmal Warusawithana
Software Architect; WSO2 Inc.
Mobile : +94714289692
Blog : http://lakmalsview.blogspot.com/
Re: Attach a persistance volume to an instance startup
Posted by Udara Liyanage <ud...@wso2.com>.
Yes this is optional. This is for data cartridges like mysql, momgodb to
recover data even after an instance crashes.
Touched, not typed. Erroneous words are a feature, not a typo.
On Jan 14, 2014 9:05 PM, "Sanjiva Weerawarana" <sa...@wso2.com> wrote:
> This is optional right? That is, most instances will not need a persistent
> disk right?
>
>
> On Tue, Jan 7, 2014 at 12:29 PM, Udara Liyanage <ud...@wso2.com> wrote:
>
>> Hi,
>>
>> I was in the process of implementing $subject for Stratos. I was able to
>> attach a volume in Amazon EC2. Though the volume is attached, currently we
>> have to mount the volume manually. Following are the solutions that I am
>> thinking of now.
>>
>> 1) send the volume disk name via payload so within the agent shell script
>> we can manually mount the volume.
>> 2) find a way of mounting using jclouds
>> 2) find a way to automatically mount from the IAAS side.
>>
>> I think 1) is possible. Any better suggestions appreciated?
>>
>> --
>> Udara Liyanage
>> Software Engineer
>> WSO2, Inc.: http://wso2.com
>> lean. enterprise. middleware
>>
>> web: http://udaraliyanage.wordpress.com
>> phone: +94 71 443 6897
>>
>
>
>
> --
> Sanjiva Weerawarana, Ph.D.
> Founder, Chairman & CEO; WSO2, Inc.; http://wso2.com/
> email: sanjiva@wso2.com; office: +1 650 745 4499 x5700; cell: +94 77 787
> 6880 | +1 650 265 8311
> blog: http://sanjiva.weerawarana.org/
> Lean . Enterprise . Middleware
>
Re: Attach a persistance volume to an instance startup
Posted by Nirmal Fernando <ni...@gmail.com>.
Yes, the idea is to let both Cartridge provider and the person who
subscribes, decide whether they require a persistent volume.
On Tue, Jan 14, 2014 at 9:04 PM, Sanjiva Weerawarana <sa...@wso2.com>wrote:
> This is optional right? That is, most instances will not need a persistent
> disk right?
>
>
> On Tue, Jan 7, 2014 at 12:29 PM, Udara Liyanage <ud...@wso2.com> wrote:
>
>> Hi,
>>
>> I was in the process of implementing $subject for Stratos. I was able to
>> attach a volume in Amazon EC2. Though the volume is attached, currently we
>> have to mount the volume manually. Following are the solutions that I am
>> thinking of now.
>>
>> 1) send the volume disk name via payload so within the agent shell script
>> we can manually mount the volume.
>> 2) find a way of mounting using jclouds
>> 2) find a way to automatically mount from the IAAS side.
>>
>> I think 1) is possible. Any better suggestions appreciated?
>>
>> --
>> Udara Liyanage
>> Software Engineer
>> WSO2, Inc.: http://wso2.com
>> lean. enterprise. middleware
>>
>> web: http://udaraliyanage.wordpress.com
>> phone: +94 71 443 6897
>>
>
>
>
> --
> Sanjiva Weerawarana, Ph.D.
> Founder, Chairman & CEO; WSO2, Inc.; http://wso2.com/
> email: sanjiva@wso2.com; office: +1 650 745 4499 x5700; cell: +94 77 787
> 6880 | +1 650 265 8311
> blog: http://sanjiva.weerawarana.org/
> Lean . Enterprise . Middleware
>
--
Best Regards,
Nirmal
Nirmal Fernando.
PPMC Member & Committer of Apache Stratos,
Senior Software Engineer, WSO2 Inc.
Blog: http://nirmalfdo.blogspot.com/
Re: Attach a persistance volume to an instance startup
Posted by Sanjiva Weerawarana <sa...@wso2.com>.
This is optional right? That is, most instances will not need a persistent
disk right?
On Tue, Jan 7, 2014 at 12:29 PM, Udara Liyanage <ud...@wso2.com> wrote:
> Hi,
>
> I was in the process of implementing $subject for Stratos. I was able to
> attach a volume in Amazon EC2. Though the volume is attached, currently we
> have to mount the volume manually. Following are the solutions that I am
> thinking of now.
>
> 1) send the volume disk name via payload so within the agent shell script
> we can manually mount the volume.
> 2) find a way of mounting using jclouds
> 2) find a way to automatically mount from the IAAS side.
>
> I think 1) is possible. Any better suggestions appreciated?
>
> --
> Udara Liyanage
> Software Engineer
> WSO2, Inc.: http://wso2.com
> lean. enterprise. middleware
>
> web: http://udaraliyanage.wordpress.com
> phone: +94 71 443 6897
>
--
Sanjiva Weerawarana, Ph.D.
Founder, Chairman & CEO; WSO2, Inc.; http://wso2.com/
email: sanjiva@wso2.com; office: +1 650 745 4499 x5700; cell: +94 77 787
6880 | +1 650 265 8311
blog: http://sanjiva.weerawarana.org/
Lean . Enterprise . Middleware
Re: Attach a persistance volume to an instance startup
Posted by Nirmal Fernando <ni...@gmail.com>.
Udara,
But that would make data to be replicated only at the start-up of the new
instance. But I think what we need is a continuous data replication.
On Wed, Jan 15, 2014 at 8:26 PM, Udara Liyanage <ud...@wso2.com> wrote:
> If we are to scale data cartridges. We have to create a snapshot of the
> current volume and attach the snapshot to the newly spinned instances so
> the data is replicated to the new instances.
>
> Touched, not typed. Erroneous words are a feature, not a typo.
>
--
Best Regards,
Nirmal
Nirmal Fernando.
PPMC Member & Committer of Apache Stratos,
Senior Software Engineer, WSO2 Inc.
Blog: http://nirmalfdo.blogspot.com/
Re: Attach a persistance volume to an instance startup
Posted by Udara Liyanage <ud...@wso2.com>.
If we are to scale data cartridges. We have to create a snapshot of the
current volume and attach the snapshot to the newly spinned instances so
the data is replicated to the new instances.
Touched, not typed. Erroneous words are a feature, not a typo.
Re: Attach a persistance volume to an instance startup
Posted by Lakmal Warusawithana <la...@wso2.com>.
If I further explain the implementation design, When we create a cartridge
definition, we can give whether it is required a persistence volume. Then
subscription time, there will be a option to request persistence volume,
and it validate the auto scaling policy. Then the Cloud Controller will
create a volume and attache to the create instance, and pass detail into
instance via the payload. So cartridge creator, when the cartridge creation
phase, have to take this into how it can use for the particular cartridge.
(like formatting, mounting ..etc). Also CC will update the topology with
these volume details under member information. Then the event of member
crashed or terminate, AS and CC will make sure re-attached the above volume
to replaced instance.
On Wed, Jan 15, 2014 at 7:16 PM, Lakmal Warusawithana <la...@wso2.com>wrote:
>
>
>
> On Wed, Jan 15, 2014 at 6:56 PM, Afkham Azeez <af...@gmail.com> wrote:
>
>> So in this case we are only concerned about single instance, single
>> volume deployment scenarios? That should be fine for now, but we need to
>> think about how to deploy clustered data cartridges. Perhaps for the time
>> being, it would be acceptable not to have autoscaling, but define the
>> number of instances required, and then also have a volume per cartridge
>> created. When it comes to assigning volumes, we could pick up one of the
>> unattached volumes & attach it to the cartridge. Setting the min & max
>> instances to the same value should prevent the autoscaler from trying to
>> spin up new instances right?
>>
>
> Yes, from auto scaling policy (which we can set min,max) we can prevent
> the autoscaling. With the "min" property it will guarantee number of
> instance required, and in that case it will create per volume for instance.
>
>
>>
>> Azeez
>>
>>
>> On Wed, Jan 15, 2014 at 6:39 PM, Lakmal Warusawithana <la...@wso2.com>wrote:
>>
>>> Hi Azeez,
>>>
>>> This persistence volumes only deal with "Data Cartridges", with in this
>>> release we are not addressing auto scaling. We need to come with proper
>>> solution for scaling data cartridges, mainly how we can handle data
>>> replication. In this release we only address, in the case of cashed or
>>> termination of the data cartridge, to recover the data. In this case it
>>> will spin new instance and re-attached the previously create volume.
>>>
>>>
>>> On Wed, Jan 15, 2014 at 6:29 PM, Afkham Azeez <af...@gmail.com> wrote:
>>>
>>>> How will this work with autoscaling? Do you have to create the volumes
>>>> in advance, and keep them ready to be mounted? One volume can be mounted to
>>>> only one active instance right?
>>>>
>>>> Azeez
>>>>
>>>>
>>>> On Tue, Jan 7, 2014 at 12:29 PM, Udara Liyanage <ud...@wso2.com> wrote:
>>>>
>>>>> Hi,
>>>>>
>>>>> I was in the process of implementing $subject for Stratos. I was able
>>>>> to attach a volume in Amazon EC2. Though the volume is attached, currently
>>>>> we have to mount the volume manually. Following are the solutions that I am
>>>>> thinking of now.
>>>>>
>>>>> 1) send the volume disk name via payload so within the agent shell
>>>>> script we can manually mount the volume.
>>>>> 2) find a way of mounting using jclouds
>>>>> 2) find a way to automatically mount from the IAAS side.
>>>>>
>>>>> I think 1) is possible. Any better suggestions appreciated?
>>>>>
>>>>> --
>>>>> Udara Liyanage
>>>>> Software Engineer
>>>>> WSO2, Inc.: http://wso2.com
>>>>> lean. enterprise. middleware
>>>>>
>>>>> web: http://udaraliyanage.wordpress.com
>>>>> phone: +94 71 443 6897
>>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> *Afkham Azeez*
>>>> Director of Architecture; WSO2, Inc.; http://wso2.com,
>>>> *Member; Apache Software Foundation; **http://www.apache.org/*<http://www.apache.org/>
>>>>
>>>> *email: **azeez@wso2.com* <az...@wso2.com>
>>>> * cell: +94 77 3320919 <%2B94%2077%203320919> blog: *
>>>> *http://blog.afkham.org* <http://blog.afkham.org>
>>>> *twitter: **http://twitter.com/afkham_azeez*<http://twitter.com/afkham_azeez>
>>>> * linked-in: **http://lk.linkedin.com/in/afkhamazeez
>>>> <http://lk.linkedin.com/in/afkhamazeez>*
>>>>
>>>>
>>>> *Lean . Enterprise . Middleware*
>>>>
>>>>
>>>
>>>
>>> --
>>> Lakmal Warusawithana
>>> Software Architect; WSO2 Inc.
>>> Mobile : +94714289692
>>> Blog : http://lakmalsview.blogspot.com/
>>>
>>>
>>
>>
>> --
>> *Afkham Azeez*
>> Director of Architecture; WSO2, Inc.; http://wso2.com,
>> *Member; Apache Software Foundation; **http://www.apache.org/*<http://www.apache.org/>
>>
>> *email: **azeez@wso2.com* <az...@wso2.com>
>> * cell: +94 77 3320919 <%2B94%2077%203320919> blog: *
>> *http://blog.afkham.org* <http://blog.afkham.org>
>> *twitter: **http://twitter.com/afkham_azeez*<http://twitter.com/afkham_azeez>
>> * linked-in: **http://lk.linkedin.com/in/afkhamazeez
>> <http://lk.linkedin.com/in/afkhamazeez>*
>>
>> *Lean . Enterprise . Middleware*
>>
>>
>
>
> --
> Lakmal Warusawithana
> Software Architect; WSO2 Inc.
> Mobile : +94714289692
> Blog : http://lakmalsview.blogspot.com/
>
>
--
Lakmal Warusawithana
Software Architect; WSO2 Inc.
Mobile : +94714289692
Blog : http://lakmalsview.blogspot.com/
Re: Attach a persistance volume to an instance startup
Posted by Lakmal Warusawithana <la...@wso2.com>.
On Wed, Jan 15, 2014 at 6:56 PM, Afkham Azeez <af...@gmail.com> wrote:
> So in this case we are only concerned about single instance, single volume
> deployment scenarios? That should be fine for now, but we need to think
> about how to deploy clustered data cartridges. Perhaps for the time being,
> it would be acceptable not to have autoscaling, but define the number of
> instances required, and then also have a volume per cartridge created. When
> it comes to assigning volumes, we could pick up one of the unattached
> volumes & attach it to the cartridge. Setting the min & max instances to
> the same value should prevent the autoscaler from trying to spin up new
> instances right?
>
Yes, from auto scaling policy (which we can set min,max) we can prevent the
autoscaling. With the "min" property it will guarantee number of instance
required, and in that case it will create per volume for instance.
>
> Azeez
>
>
> On Wed, Jan 15, 2014 at 6:39 PM, Lakmal Warusawithana <la...@wso2.com>wrote:
>
>> Hi Azeez,
>>
>> This persistence volumes only deal with "Data Cartridges", with in this
>> release we are not addressing auto scaling. We need to come with proper
>> solution for scaling data cartridges, mainly how we can handle data
>> replication. In this release we only address, in the case of cashed or
>> termination of the data cartridge, to recover the data. In this case it
>> will spin new instance and re-attached the previously create volume.
>>
>>
>> On Wed, Jan 15, 2014 at 6:29 PM, Afkham Azeez <af...@gmail.com> wrote:
>>
>>> How will this work with autoscaling? Do you have to create the volumes
>>> in advance, and keep them ready to be mounted? One volume can be mounted to
>>> only one active instance right?
>>>
>>> Azeez
>>>
>>>
>>> On Tue, Jan 7, 2014 at 12:29 PM, Udara Liyanage <ud...@wso2.com> wrote:
>>>
>>>> Hi,
>>>>
>>>> I was in the process of implementing $subject for Stratos. I was able
>>>> to attach a volume in Amazon EC2. Though the volume is attached, currently
>>>> we have to mount the volume manually. Following are the solutions that I am
>>>> thinking of now.
>>>>
>>>> 1) send the volume disk name via payload so within the agent shell
>>>> script we can manually mount the volume.
>>>> 2) find a way of mounting using jclouds
>>>> 2) find a way to automatically mount from the IAAS side.
>>>>
>>>> I think 1) is possible. Any better suggestions appreciated?
>>>>
>>>> --
>>>> Udara Liyanage
>>>> Software Engineer
>>>> WSO2, Inc.: http://wso2.com
>>>> lean. enterprise. middleware
>>>>
>>>> web: http://udaraliyanage.wordpress.com
>>>> phone: +94 71 443 6897
>>>>
>>>
>>>
>>>
>>> --
>>> *Afkham Azeez*
>>> Director of Architecture; WSO2, Inc.; http://wso2.com,
>>> *Member; Apache Software Foundation; **http://www.apache.org/*<http://www.apache.org/>
>>>
>>> *email: **azeez@wso2.com* <az...@wso2.com>
>>> * cell: +94 77 3320919 <%2B94%2077%203320919> blog: *
>>> *http://blog.afkham.org* <http://blog.afkham.org>
>>> *twitter: **http://twitter.com/afkham_azeez*<http://twitter.com/afkham_azeez>
>>> * linked-in: **http://lk.linkedin.com/in/afkhamazeez
>>> <http://lk.linkedin.com/in/afkhamazeez>*
>>>
>>>
>>> *Lean . Enterprise . Middleware*
>>>
>>>
>>
>>
>> --
>> Lakmal Warusawithana
>> Software Architect; WSO2 Inc.
>> Mobile : +94714289692
>> Blog : http://lakmalsview.blogspot.com/
>>
>>
>
>
> --
> *Afkham Azeez*
> Director of Architecture; WSO2, Inc.; http://wso2.com,
> *Member; Apache Software Foundation; **http://www.apache.org/*<http://www.apache.org/>
>
> *email: **azeez@wso2.com* <az...@wso2.com>
> * cell: +94 77 3320919 <%2B94%2077%203320919> blog: *
> *http://blog.afkham.org* <http://blog.afkham.org>
> *twitter: **http://twitter.com/afkham_azeez*<http://twitter.com/afkham_azeez>
> * linked-in: **http://lk.linkedin.com/in/afkhamazeez
> <http://lk.linkedin.com/in/afkhamazeez>*
>
> *Lean . Enterprise . Middleware*
>
>
--
Lakmal Warusawithana
Software Architect; WSO2 Inc.
Mobile : +94714289692
Blog : http://lakmalsview.blogspot.com/
Re: Attach a persistance volume to an instance startup
Posted by Afkham Azeez <af...@gmail.com>.
So in this case we are only concerned about single instance, single volume
deployment scenarios? That should be fine for now, but we need to think
about how to deploy clustered data cartridges. Perhaps for the time being,
it would be acceptable not to have autoscaling, but define the number of
instances required, and then also have a volume per cartridge created. When
it comes to assigning volumes, we could pick up one of the unattached
volumes & attach it to the cartridge. Setting the min & max instances to
the same value should prevent the autoscaler from trying to spin up new
instances right?
Azeez
On Wed, Jan 15, 2014 at 6:39 PM, Lakmal Warusawithana <la...@wso2.com>wrote:
> Hi Azeez,
>
> This persistence volumes only deal with "Data Cartridges", with in this
> release we are not addressing auto scaling. We need to come with proper
> solution for scaling data cartridges, mainly how we can handle data
> replication. In this release we only address, in the case of cashed or
> termination of the data cartridge, to recover the data. In this case it
> will spin new instance and re-attached the previously create volume.
>
>
> On Wed, Jan 15, 2014 at 6:29 PM, Afkham Azeez <af...@gmail.com> wrote:
>
>> How will this work with autoscaling? Do you have to create the volumes in
>> advance, and keep them ready to be mounted? One volume can be mounted to
>> only one active instance right?
>>
>> Azeez
>>
>>
>> On Tue, Jan 7, 2014 at 12:29 PM, Udara Liyanage <ud...@wso2.com> wrote:
>>
>>> Hi,
>>>
>>> I was in the process of implementing $subject for Stratos. I was able to
>>> attach a volume in Amazon EC2. Though the volume is attached, currently we
>>> have to mount the volume manually. Following are the solutions that I am
>>> thinking of now.
>>>
>>> 1) send the volume disk name via payload so within the agent shell
>>> script we can manually mount the volume.
>>> 2) find a way of mounting using jclouds
>>> 2) find a way to automatically mount from the IAAS side.
>>>
>>> I think 1) is possible. Any better suggestions appreciated?
>>>
>>> --
>>> Udara Liyanage
>>> Software Engineer
>>> WSO2, Inc.: http://wso2.com
>>> lean. enterprise. middleware
>>>
>>> web: http://udaraliyanage.wordpress.com
>>> phone: +94 71 443 6897
>>>
>>
>>
>>
>> --
>> *Afkham Azeez*
>> Director of Architecture; WSO2, Inc.; http://wso2.com,
>> *Member; Apache Software Foundation; **http://www.apache.org/*<http://www.apache.org/>
>>
>> *email: **azeez@wso2.com* <az...@wso2.com>
>> * cell: +94 77 3320919 <%2B94%2077%203320919> blog: *
>> *http://blog.afkham.org* <http://blog.afkham.org>
>> *twitter: **http://twitter.com/afkham_azeez*<http://twitter.com/afkham_azeez>
>> * linked-in: **http://lk.linkedin.com/in/afkhamazeez
>> <http://lk.linkedin.com/in/afkhamazeez>*
>>
>>
>> *Lean . Enterprise . Middleware*
>>
>>
>
>
> --
> Lakmal Warusawithana
> Software Architect; WSO2 Inc.
> Mobile : +94714289692
> Blog : http://lakmalsview.blogspot.com/
>
>
--
*Afkham Azeez*
Director of Architecture; WSO2, Inc.; http://wso2.com,
*Member; Apache Software Foundation;
**http://www.apache.org/*<http://www.apache.org/>
*email: **azeez@wso2.com* <az...@wso2.com>
* cell: +94 77 3320919 blog: **http://blog.afkham.org*<http://blog.afkham.org>
*twitter: **http://twitter.com/afkham_azeez*<http://twitter.com/afkham_azeez>
* linked-in: **http://lk.linkedin.com/in/afkhamazeez
<http://lk.linkedin.com/in/afkhamazeez>*
*Lean . Enterprise . Middleware*
Re: Attach a persistance volume to an instance startup
Posted by Lakmal Warusawithana <la...@wso2.com>.
Hi Azeez,
This persistence volumes only deal with "Data Cartridges", with in this
release we are not addressing auto scaling. We need to come with proper
solution for scaling data cartridges, mainly how we can handle data
replication. In this release we only address, in the case of cashed or
termination of the data cartridge, to recover the data. In this case it
will spin new instance and re-attached the previously create volume.
On Wed, Jan 15, 2014 at 6:29 PM, Afkham Azeez <af...@gmail.com> wrote:
> How will this work with autoscaling? Do you have to create the volumes in
> advance, and keep them ready to be mounted? One volume can be mounted to
> only one active instance right?
>
> Azeez
>
>
> On Tue, Jan 7, 2014 at 12:29 PM, Udara Liyanage <ud...@wso2.com> wrote:
>
>> Hi,
>>
>> I was in the process of implementing $subject for Stratos. I was able to
>> attach a volume in Amazon EC2. Though the volume is attached, currently we
>> have to mount the volume manually. Following are the solutions that I am
>> thinking of now.
>>
>> 1) send the volume disk name via payload so within the agent shell script
>> we can manually mount the volume.
>> 2) find a way of mounting using jclouds
>> 2) find a way to automatically mount from the IAAS side.
>>
>> I think 1) is possible. Any better suggestions appreciated?
>>
>> --
>> Udara Liyanage
>> Software Engineer
>> WSO2, Inc.: http://wso2.com
>> lean. enterprise. middleware
>>
>> web: http://udaraliyanage.wordpress.com
>> phone: +94 71 443 6897
>>
>
>
>
> --
> *Afkham Azeez*
> Director of Architecture; WSO2, Inc.; http://wso2.com,
> *Member; Apache Software Foundation; **http://www.apache.org/*<http://www.apache.org/>
>
> *email: **azeez@wso2.com* <az...@wso2.com>
> * cell: +94 77 3320919 <%2B94%2077%203320919> blog: *
> *http://blog.afkham.org* <http://blog.afkham.org>
> *twitter: **http://twitter.com/afkham_azeez*<http://twitter.com/afkham_azeez>
> * linked-in: **http://lk.linkedin.com/in/afkhamazeez
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>
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> *Lean . Enterprise . Middleware*
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Lakmal Warusawithana
Software Architect; WSO2 Inc.
Mobile : +94714289692
Blog : http://lakmalsview.blogspot.com/
Re: Attach a persistance volume to an instance startup
Posted by Afkham Azeez <af...@gmail.com>.
How will this work with autoscaling? Do you have to create the volumes in
advance, and keep them ready to be mounted? One volume can be mounted to
only one active instance right?
Azeez
On Tue, Jan 7, 2014 at 12:29 PM, Udara Liyanage <ud...@wso2.com> wrote:
> Hi,
>
> I was in the process of implementing $subject for Stratos. I was able to
> attach a volume in Amazon EC2. Though the volume is attached, currently we
> have to mount the volume manually. Following are the solutions that I am
> thinking of now.
>
> 1) send the volume disk name via payload so within the agent shell script
> we can manually mount the volume.
> 2) find a way of mounting using jclouds
> 2) find a way to automatically mount from the IAAS side.
>
> I think 1) is possible. Any better suggestions appreciated?
>
> --
> Udara Liyanage
> Software Engineer
> WSO2, Inc.: http://wso2.com
> lean. enterprise. middleware
>
> web: http://udaraliyanage.wordpress.com
> phone: +94 71 443 6897
>
--
*Afkham Azeez*
Director of Architecture; WSO2, Inc.; http://wso2.com,
*Member; Apache Software Foundation;
**http://www.apache.org/*<http://www.apache.org/>
*email: **azeez@wso2.com* <az...@wso2.com>
* cell: +94 77 3320919 blog: **http://blog.afkham.org*<http://blog.afkham.org>
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* linked-in: **http://lk.linkedin.com/in/afkhamazeez
<http://lk.linkedin.com/in/afkhamazeez>*
*Lean . Enterprise . Middleware*