Re: [openstack-dev] [tempest][scenario] independece test between Stack and backing services?

2014-04-02 Thread Tomoya Goto

Hello, Igawa-san

Thanks for pointing out Tempest principles. I wasn't aware of them.

ok, I'll probably use the current test cases with manually stopping 
services.
I'm checking with Temest(icehouse) and if I write or think up something 
useful, I'll be back.  Also Grenade, too. :)



Thank you  for valuable advices,
- Tomoya Goto




Hi,

On 04/02, Tomoya Goto wrote:

Thanks for quick replies Igawa-san and Mr.Sean! :)
  and sorry foy my slow reply :(


np :)




The task I wantetd to conduct is not only for upgrading but also for
rather small maintenace, say stopping openstack-cinder* for changing
configuration.

Now, Grenade is for upgrade purpose but not for such small
maintenace, right?
So I think tempest is more suitable than Grenade for such task.

what do you say?


This kind (fault injection?) of tests that you said are interesting and
we should have them in future. But Tempest should not operate OpenStack
components directly. e.g. stop/start Cinder/Glance/Nova services.
This is one of design principles[1]. So I think we need a new project
for these types of tests or need to change the principles.

[1] http://docs.openstack.org/developer/tempest/overview.html#design-principles

Thanks,
-- Masayuki Igawa



  - Tomoya Goto



You are correct. The testing we do for this is in Grenade, which we run
in the gate. Grenade tests an upgrade from last stable release to
current master. It creates a few resources before the upgrade, and fails
if those are interupted after the upgrade.

Grenade is still pretty light on the number of resources it creates
before the upgrade, and is definitely a place where enhancement is welcome.

-Sean


On 04/01/2014 04:18 AM, Masayuki Igawa wrote:

Hi Goto-san,

I think this is an interesting test case. But AFAIK, Tempest and its
scenario tests don't have such test cases now, and we can't stop the
OpenStack processes through Tempest.

Do you know Grenade[1]? I think Grenade is the only one upgrading test in
the OpenStack community now. So I guess Grenade can test these kind of
tests but not yet though.

[1] https://wiki.openstack.org/wiki/Grenade


On 04/01, 後藤 僚哉 wrote:

Hello everyone.

I'm looking for an independence test between an OpenStack environment
and virtual environments.

In case of updating an openstack environment, you need to stop each
OpenStack process, but you don't want the instances to be affected by
OpenStack outages.
So before maintenane, you want to make sure OpenStack and backing
services(KVM, OVS, storage,.) are separate.

For example.
  1) Creating a virtual environment on a OpenStack environment. this
includes Nova instances, Neutron L2/3 networks, Cinder volumes and etc.


I'd like to clarify more. Do you mean OpenStack on OpenStack environment?
Or just mean VMs on OpenStack env?


I meant just VMs on OpenStack env.
When you stop some processes for update, say openstack-cinder-*, you
want to make sure it won't disconnect volume/VM.


Thanks, I got it.




  2) Stopping one or more OpenStack's processes.


Currently, Tempest can't stop the OpenStack processes. Because Tempest
can operate OpenStack components through OpenStack APIs only for now.

oh yes. Just like I feard.



Thanks,
-- Masayuki Igawa


  3) Running this test, and checking that each resource doesn't stop.
  4) Updating an OpenStack, editing configurations or etc.
I assume such test is coverd by tempest.

Dose Tempest have those test methods? or if not, do you think it's going
to be handy if I make such test?


Best regards,
Tomoya Goto

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Re: [openstack-dev] [tempest][scenario] independece test between Stack and backing services?

2014-04-02 Thread Sean Dague
Fault injection is a problem I've been thinking about, though I don't
have time to dive into it any time soon. But I'll share my ideas in case
they are interesting.

I think we need a Fault Injection Service for OpenStack. It would act
like many of the other OpenStack services, have an API service, and a
worker on every node. It would be our own kind of chaos monkey, except
very programmable. It would look like any multi host service,
communicating over RPC between API and the nodes.

The Fault injection service would have the ability to kill process on
the hosts (libvirt, nova-compute, c-vol). It would also have the ability
to delete did data (simulating a hardware fault).

We could definitely use something like this to also signal a service
restart, or some other behind the scenes action that we'd expect would
be regularly happening.

If we had a Fault Injection service, then we could have a class of tests
(possibly in Tempest, possibly in another place) which would start
resources with the OpenStack API, then inject faults, then continue
along the way.

I feel like Juno is too soon for this, as we have lots of other issues
to address. However, K might work. That being said, if anyone wants to
dive in early, have at. The important thing would be that this has REST
API, and that it be multi node.

-Sean

On 04/02/2014 04:37 AM, Tomoya Goto wrote:
 Hello, Igawa-san
 
 Thanks for pointing out Tempest principles. I wasn't aware of them.
 
 ok, I'll probably use the current test cases with manually stopping
 services.
 I'm checking with Temest(icehouse) and if I write or think up something
 useful, I'll be back.  Also Grenade, too. :)
 
 
 Thank you  for valuable advices,
 - Tomoya Goto
 
 
 
 Hi,

 On 04/02, Tomoya Goto wrote:
 Thanks for quick replies Igawa-san and Mr.Sean! :)
   and sorry foy my slow reply :(

 np :)



 The task I wantetd to conduct is not only for upgrading but also for
 rather small maintenace, say stopping openstack-cinder* for changing
 configuration.

 Now, Grenade is for upgrade purpose but not for such small
 maintenace, right?
 So I think tempest is more suitable than Grenade for such task.

 what do you say?

 This kind (fault injection?) of tests that you said are interesting and
 we should have them in future. But Tempest should not operate OpenStack
 components directly. e.g. stop/start Cinder/Glance/Nova services.
 This is one of design principles[1]. So I think we need a new project
 for these types of tests or need to change the principles.

 [1]
 http://docs.openstack.org/developer/tempest/overview.html#design-principles


 Thanks,
 -- Masayuki Igawa


   - Tomoya Goto


 You are correct. The testing we do for this is in Grenade, which we run
 in the gate. Grenade tests an upgrade from last stable release to
 current master. It creates a few resources before the upgrade, and
 fails
 if those are interupted after the upgrade.

 Grenade is still pretty light on the number of resources it creates
 before the upgrade, and is definitely a place where enhancement is
 welcome.

 -Sean


 On 04/01/2014 04:18 AM, Masayuki Igawa wrote:
 Hi Goto-san,

 I think this is an interesting test case. But AFAIK, Tempest and its
 scenario tests don't have such test cases now, and we can't stop the
 OpenStack processes through Tempest.

 Do you know Grenade[1]? I think Grenade is the only one upgrading
 test in
 the OpenStack community now. So I guess Grenade can test these kind of
 tests but not yet though.

 [1] https://wiki.openstack.org/wiki/Grenade


 On 04/01, 後藤 僚哉 wrote:
 Hello everyone.

 I'm looking for an independence test between an OpenStack environment
 and virtual environments.

 In case of updating an openstack environment, you need to stop each
 OpenStack process, but you don't want the instances to be affected by
 OpenStack outages.
 So before maintenane, you want to make sure OpenStack and backing
 services(KVM, OVS, storage,.) are separate.

 For example.
   1) Creating a virtual environment on a OpenStack environment. this
 includes Nova instances, Neutron L2/3 networks, Cinder volumes and
 etc.

 I'd like to clarify more. Do you mean OpenStack on OpenStack
 environment?
 Or just mean VMs on OpenStack env?

 I meant just VMs on OpenStack env.
 When you stop some processes for update, say openstack-cinder-*, you
 want to make sure it won't disconnect volume/VM.

 Thanks, I got it.


   2) Stopping one or more OpenStack's processes.

 Currently, Tempest can't stop the OpenStack processes. Because Tempest
 can operate OpenStack components through OpenStack APIs only for now.
 oh yes. Just like I feard.


 Thanks,
 -- Masayuki Igawa

   3) Running this test, and checking that each resource doesn't stop.
   4) Updating an OpenStack, editing configurations or etc.
 I assume such test is coverd by tempest.

 Dose Tempest have those test methods? or if not, do you think it's
 going
 to be handy if I make such test?


 Best regards,
 Tomoya Goto

 

Re: [openstack-dev] [tempest][scenario] independece test between Stack and backing services?

2014-04-02 Thread Martina Kollarova

Hi Sean,

I'm already working on something similar. What I'm trying to do is not 
a service, but a set of tests that would be able to run commands on the 
nodes and restart services, kill disks, etc. The basic idea is to 
inject some fault, see if everything still works as expected and 
restore the state back to what it was before the fault. So far I only 
have some basic tests for Swift, but I'm planning more. The state 
restoration is going to be via snapshots (so it will have to be running 
in VMs, or I could add support for LVM snapshots too) .


The project is called DestroyStack and is located here:
https://github.com/mkollaro/destroystack/tree/devel

It's still WIP, please don't try to run it yet, not everything is 
implemented. I'm currently trying to create that demo.


Martina

On Wed 02 Apr 2014 12:34:43 PM CEST, Sean Dague wrote:

Fault injection is a problem I've been thinking about, though I don't
have time to dive into it any time soon. But I'll share my ideas in case
they are interesting.

I think we need a Fault Injection Service for OpenStack. It would act
like many of the other OpenStack services, have an API service, and a
worker on every node. It would be our own kind of chaos monkey, except
very programmable. It would look like any multi host service,
communicating over RPC between API and the nodes.

The Fault injection service would have the ability to kill process on
the hosts (libvirt, nova-compute, c-vol). It would also have the ability
to delete did data (simulating a hardware fault).

We could definitely use something like this to also signal a service
restart, or some other behind the scenes action that we'd expect would
be regularly happening.

If we had a Fault Injection service, then we could have a class of tests
(possibly in Tempest, possibly in another place) which would start
resources with the OpenStack API, then inject faults, then continue
along the way.

I feel like Juno is too soon for this, as we have lots of other issues
to address. However, K might work. That being said, if anyone wants to
dive in early, have at. The important thing would be that this has REST
API, and that it be multi node.

-Sean

On 04/02/2014 04:37 AM, Tomoya Goto wrote:

Hello, Igawa-san

Thanks for pointing out Tempest principles. I wasn't aware of them.

ok, I'll probably use the current test cases with manually stopping
services.
I'm checking with Temest(icehouse) and if I write or think up something
useful, I'll be back.  Also Grenade, too. :)


Thank you  for valuable advices,
 - Tomoya Goto




Hi,

On 04/02, Tomoya Goto wrote:

Thanks for quick replies Igawa-san and Mr.Sean! :)
   and sorry foy my slow reply :(


np :)




The task I wantetd to conduct is not only for upgrading but also for
rather small maintenace, say stopping openstack-cinder* for changing
configuration.

Now, Grenade is for upgrade purpose but not for such small
maintenace, right?
So I think tempest is more suitable than Grenade for such task.

what do you say?


This kind (fault injection?) of tests that you said are interesting and
we should have them in future. But Tempest should not operate OpenStack
components directly. e.g. stop/start Cinder/Glance/Nova services.
This is one of design principles[1]. So I think we need a new project
for these types of tests or need to change the principles.

[1]
http://docs.openstack.org/developer/tempest/overview.html#design-principles


Thanks,
-- Masayuki Igawa



   - Tomoya Goto



You are correct. The testing we do for this is in Grenade, which we run
in the gate. Grenade tests an upgrade from last stable release to
current master. It creates a few resources before the upgrade, and
fails
if those are interupted after the upgrade.

Grenade is still pretty light on the number of resources it creates
before the upgrade, and is definitely a place where enhancement is
welcome.

 -Sean


On 04/01/2014 04:18 AM, Masayuki Igawa wrote:

Hi Goto-san,

I think this is an interesting test case. But AFAIK, Tempest and its
scenario tests don't have such test cases now, and we can't stop the
OpenStack processes through Tempest.

Do you know Grenade[1]? I think Grenade is the only one upgrading
test in
the OpenStack community now. So I guess Grenade can test these kind of
tests but not yet though.

[1] https://wiki.openstack.org/wiki/Grenade


On 04/01, 後藤 僚哉 wrote:

Hello everyone.

I'm looking for an independence test between an OpenStack environment
and virtual environments.

In case of updating an openstack environment, you need to stop each
OpenStack process, but you don't want the instances to be affected by
OpenStack outages.
So before maintenane, you want to make sure OpenStack and backing
services(KVM, OVS, storage,.) are separate.

For example.
   1) Creating a virtual environment on a OpenStack environment. this
includes Nova instances, Neutron L2/3 networks, Cinder volumes and
etc.


I'd like to clarify more. Do you mean OpenStack on OpenStack
environment?

Re: [openstack-dev] [tempest][scenario] independece test between Stack and backing services?

2014-04-02 Thread Sean Dague
Good stuff. I like the semantics of what the destroy stack tests look
like, very clean.

I still think there would be value in doing this as a API service, which
would let you decouple the test cases (and even put them in Tempest), as
the tests could just assume certain fault semantics, and the
implementation (which could even start with the ssh to nodes approach)
would be left to the fault service.

Do you think this would be an interesting evolution of destroystack, or
is that different enough in goals that we should think about this
problem separately.

-Sean

On 04/02/2014 08:55 AM, Martina Kollarova wrote:
 Hi Sean,
 
 I'm already working on something similar. What I'm trying to do is not a
 service, but a set of tests that would be able to run commands on the
 nodes and restart services, kill disks, etc. The basic idea is to inject
 some fault, see if everything still works as expected and restore the
 state back to what it was before the fault. So far I only have some
 basic tests for Swift, but I'm planning more. The state restoration is
 going to be via snapshots (so it will have to be running in VMs, or I
 could add support for LVM snapshots too) .
 
 The project is called DestroyStack and is located here:
 https://github.com/mkollaro/destroystack/tree/devel
 
 It's still WIP, please don't try to run it yet, not everything is
 implemented. I'm currently trying to create that demo.
 
 Martina
 
 On Wed 02 Apr 2014 12:34:43 PM CEST, Sean Dague wrote:
 Fault injection is a problem I've been thinking about, though I don't
 have time to dive into it any time soon. But I'll share my ideas in case
 they are interesting.

 I think we need a Fault Injection Service for OpenStack. It would act
 like many of the other OpenStack services, have an API service, and a
 worker on every node. It would be our own kind of chaos monkey, except
 very programmable. It would look like any multi host service,
 communicating over RPC between API and the nodes.

 The Fault injection service would have the ability to kill process on
 the hosts (libvirt, nova-compute, c-vol). It would also have the ability
 to delete did data (simulating a hardware fault).

 We could definitely use something like this to also signal a service
 restart, or some other behind the scenes action that we'd expect would
 be regularly happening.

 If we had a Fault Injection service, then we could have a class of tests
 (possibly in Tempest, possibly in another place) which would start
 resources with the OpenStack API, then inject faults, then continue
 along the way.

 I feel like Juno is too soon for this, as we have lots of other issues
 to address. However, K might work. That being said, if anyone wants to
 dive in early, have at. The important thing would be that this has REST
 API, and that it be multi node.

 -Sean

 On 04/02/2014 04:37 AM, Tomoya Goto wrote:
 Hello, Igawa-san

 Thanks for pointing out Tempest principles. I wasn't aware of them.

 ok, I'll probably use the current test cases with manually stopping
 services.
 I'm checking with Temest(icehouse) and if I write or think up something
 useful, I'll be back.  Also Grenade, too. :)


 Thank you  for valuable advices,
  - Tomoya Goto



 Hi,

 On 04/02, Tomoya Goto wrote:
 Thanks for quick replies Igawa-san and Mr.Sean! :)
and sorry foy my slow reply :(

 np :)



 The task I wantetd to conduct is not only for upgrading but also for
 rather small maintenace, say stopping openstack-cinder* for changing
 configuration.

 Now, Grenade is for upgrade purpose but not for such small
 maintenace, right?
 So I think tempest is more suitable than Grenade for such task.

 what do you say?

 This kind (fault injection?) of tests that you said are interesting and
 we should have them in future. But Tempest should not operate OpenStack
 components directly. e.g. stop/start Cinder/Glance/Nova services.
 This is one of design principles[1]. So I think we need a new project
 for these types of tests or need to change the principles.

 [1]
 http://docs.openstack.org/developer/tempest/overview.html#design-principles



 Thanks,
 -- Masayuki Igawa


- Tomoya Goto


 You are correct. The testing we do for this is in Grenade, which
 we run
 in the gate. Grenade tests an upgrade from last stable release to
 current master. It creates a few resources before the upgrade, and
 fails
 if those are interupted after the upgrade.

 Grenade is still pretty light on the number of resources it creates
 before the upgrade, and is definitely a place where enhancement is
 welcome.

  -Sean


 On 04/01/2014 04:18 AM, Masayuki Igawa wrote:
 Hi Goto-san,

 I think this is an interesting test case. But AFAIK, Tempest and its
 scenario tests don't have such test cases now, and we can't stop the
 OpenStack processes through Tempest.

 Do you know Grenade[1]? I think Grenade is the only one upgrading
 test in
 the OpenStack community now. So I guess Grenade can test these
 kind of
 tests but 

Re: [openstack-dev] [tempest][scenario] independece test between Stack and backing services?

2014-04-02 Thread Martina Kollarova



On Wed 02 Apr 2014 03:38:18 PM CEST, Sean Dague wrote:

Good stuff. I like the semantics of what the destroy stack tests look
like, very clean.

I still think there would be value in doing this as a API service, which
would let you decouple the test cases (and even put them in Tempest), as
the tests could just assume certain fault semantics, and the
implementation (which could even start with the ssh to nodes approach)
would be left to the fault service.



This would still leave some problems that would make it difficult to 
add these tests into Tempest. First, to check if if some things are 
working beyond some basic yep, it sent back 200, you need access to 
the nodes. For example, when I'm testing Swift, I check if there are 3 
replicas of each object by looking into the internals a bit - there is 
no API for this and I wouldn't trust it even if there was.


Another problem would be test isolation - how would you do test 
clean-up in Tempest if you don't have access to the servers and cannot 
even start up a service? You would need a full OpenStack management 
service (could TripleO somehow do this?).


But it would be interesting...the first implementation of Daas - 
Destruction as a Service.


Martina


Do you think this would be an interesting evolution of destroystack, or
is that different enough in goals that we should think about this
problem separately.

-Sean

On 04/02/2014 08:55 AM, Martina Kollarova wrote:

Hi Sean,

I'm already working on something similar. What I'm trying to do is not a
service, but a set of tests that would be able to run commands on the
nodes and restart services, kill disks, etc. The basic idea is to inject
some fault, see if everything still works as expected and restore the
state back to what it was before the fault. So far I only have some
basic tests for Swift, but I'm planning more. The state restoration is
going to be via snapshots (so it will have to be running in VMs, or I
could add support for LVM snapshots too) .

The project is called DestroyStack and is located here:
https://github.com/mkollaro/destroystack/tree/devel

It's still WIP, please don't try to run it yet, not everything is
implemented. I'm currently trying to create that demo.

Martina

On Wed 02 Apr 2014 12:34:43 PM CEST, Sean Dague wrote:

Fault injection is a problem I've been thinking about, though I don't
have time to dive into it any time soon. But I'll share my ideas in case
they are interesting.

I think we need a Fault Injection Service for OpenStack. It would act
like many of the other OpenStack services, have an API service, and a
worker on every node. It would be our own kind of chaos monkey, except
very programmable. It would look like any multi host service,
communicating over RPC between API and the nodes.

The Fault injection service would have the ability to kill process on
the hosts (libvirt, nova-compute, c-vol). It would also have the ability
to delete did data (simulating a hardware fault).

We could definitely use something like this to also signal a service
restart, or some other behind the scenes action that we'd expect would
be regularly happening.

If we had a Fault Injection service, then we could have a class of tests
(possibly in Tempest, possibly in another place) which would start
resources with the OpenStack API, then inject faults, then continue
along the way.

I feel like Juno is too soon for this, as we have lots of other issues
to address. However, K might work. That being said, if anyone wants to
dive in early, have at. The important thing would be that this has REST
API, and that it be multi node.

 -Sean

On 04/02/2014 04:37 AM, Tomoya Goto wrote:

Hello, Igawa-san

Thanks for pointing out Tempest principles. I wasn't aware of them.

ok, I'll probably use the current test cases with manually stopping
services.
I'm checking with Temest(icehouse) and if I write or think up something
useful, I'll be back.  Also Grenade, too. :)


Thank you  for valuable advices,
  - Tomoya Goto




Hi,

On 04/02, Tomoya Goto wrote:

Thanks for quick replies Igawa-san and Mr.Sean! :)
and sorry foy my slow reply :(


np :)




The task I wantetd to conduct is not only for upgrading but also for
rather small maintenace, say stopping openstack-cinder* for changing
configuration.

Now, Grenade is for upgrade purpose but not for such small
maintenace, right?
So I think tempest is more suitable than Grenade for such task.

what do you say?


This kind (fault injection?) of tests that you said are interesting and
we should have them in future. But Tempest should not operate OpenStack
components directly. e.g. stop/start Cinder/Glance/Nova services.
This is one of design principles[1]. So I think we need a new project
for these types of tests or need to change the principles.

[1]
http://docs.openstack.org/developer/tempest/overview.html#design-principles



Thanks,
-- Masayuki Igawa



- Tomoya Goto



You are correct. The testing we do for this is in Grenade, 

[openstack-dev] [tempest][scenario] independece test between Stack and backing services?

2014-04-01 Thread 後藤 僚哉
Hello everyone.

I'm looking for an independence test between an OpenStack environment
and virtual environments.

In case of updating an openstack environment, you need to stop each
OpenStack process, but you don't want the instances to be affected by
OpenStack outages.
So before maintenane, you want to make sure OpenStack and backing
services(KVM, OVS, storage,.) are separate.

For example.
 1) Creating a virtual environment on a OpenStack environment. this
includes Nova instances, Neutron L2/3 networks, Cinder volumes and etc.
 2) Stopping one or more OpenStack's processes.
 3) Running this test, and checking that each resource doesn't stop.
 4) Updating an OpenStack, editing configurations or etc.
I assume such test is coverd by tempest.

Dose Tempest have those test methods? or if not, do you think it's going
to be handy if I make such test?


Best regards,
Tomoya Goto

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Re: [openstack-dev] [tempest][scenario] independece test between Stack and backing services?

2014-04-01 Thread Tomoya Goto

Thanks for quick replies Igawa-san and Mr.Sean! :)
 and sorry foy my slow reply :(


The task I wantetd to conduct is not only for upgrading but also for 
rather small maintenace, say stopping openstack-cinder* for changing 
configuration.


Now, Grenade is for upgrade purpose but not for such small maintenace, 
right?

So I think tempest is more suitable than Grenade for such task.

what do you say?

 - Tomoya Goto



You are correct. The testing we do for this is in Grenade, which we run
in the gate. Grenade tests an upgrade from last stable release to
current master. It creates a few resources before the upgrade, and fails
if those are interupted after the upgrade.

Grenade is still pretty light on the number of resources it creates
before the upgrade, and is definitely a place where enhancement is welcome.

-Sean


On 04/01/2014 04:18 AM, Masayuki Igawa wrote:

Hi Goto-san,

I think this is an interesting test case. But AFAIK, Tempest and its
scenario tests don't have such test cases now, and we can't stop the
OpenStack processes through Tempest.

Do you know Grenade[1]? I think Grenade is the only one upgrading test in
the OpenStack community now. So I guess Grenade can test these kind of
tests but not yet though.

[1] https://wiki.openstack.org/wiki/Grenade


On 04/01, 後藤 僚哉 wrote:

Hello everyone.

I'm looking for an independence test between an OpenStack environment
and virtual environments.

In case of updating an openstack environment, you need to stop each
OpenStack process, but you don't want the instances to be affected by
OpenStack outages.
So before maintenane, you want to make sure OpenStack and backing
services(KVM, OVS, storage,.) are separate.

For example.
  1) Creating a virtual environment on a OpenStack environment. this
includes Nova instances, Neutron L2/3 networks, Cinder volumes and etc.


I'd like to clarify more. Do you mean OpenStack on OpenStack environment?
Or just mean VMs on OpenStack env?


I meant just VMs on OpenStack env.
When you stop some processes for update, say openstack-cinder-*, you 
want to make sure it won't disconnect volume/VM.



  2) Stopping one or more OpenStack's processes.


Currently, Tempest can't stop the OpenStack processes. Because Tempest
can operate OpenStack components through OpenStack APIs only for now.

oh yes. Just like I feard.



Thanks,
-- Masayuki Igawa


  3) Running this test, and checking that each resource doesn't stop.
  4) Updating an OpenStack, editing configurations or etc.
I assume such test is coverd by tempest.

Dose Tempest have those test methods? or if not, do you think it's going
to be handy if I make such test?


Best regards,
Tomoya Goto

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Re: [openstack-dev] [tempest][scenario] independece test between Stack and backing services?

2014-04-01 Thread Masayuki Igawa
Hi,

On 04/02, Tomoya Goto wrote:
 Thanks for quick replies Igawa-san and Mr.Sean! :)
  and sorry foy my slow reply :(

np :)

 
 
 The task I wantetd to conduct is not only for upgrading but also for
 rather small maintenace, say stopping openstack-cinder* for changing
 configuration.
 
 Now, Grenade is for upgrade purpose but not for such small
 maintenace, right?
 So I think tempest is more suitable than Grenade for such task.
 
 what do you say?

This kind (fault injection?) of tests that you said are interesting and
we should have them in future. But Tempest should not operate OpenStack
components directly. e.g. stop/start Cinder/Glance/Nova services. 
This is one of design principles[1]. So I think we need a new project
for these types of tests or need to change the principles.

[1] http://docs.openstack.org/developer/tempest/overview.html#design-principles

Thanks,
-- Masayuki Igawa

 
  - Tomoya Goto
 
 
 You are correct. The testing we do for this is in Grenade, which we run
 in the gate. Grenade tests an upgrade from last stable release to
 current master. It creates a few resources before the upgrade, and fails
 if those are interupted after the upgrade.
 
 Grenade is still pretty light on the number of resources it creates
 before the upgrade, and is definitely a place where enhancement is welcome.
 
  -Sean
 
 
 On 04/01/2014 04:18 AM, Masayuki Igawa wrote:
 Hi Goto-san,
 
 I think this is an interesting test case. But AFAIK, Tempest and its
 scenario tests don't have such test cases now, and we can't stop the
 OpenStack processes through Tempest.
 
 Do you know Grenade[1]? I think Grenade is the only one upgrading test in
 the OpenStack community now. So I guess Grenade can test these kind of
 tests but not yet though.
 
 [1] https://wiki.openstack.org/wiki/Grenade
 
 
 On 04/01, 後藤 僚哉 wrote:
 Hello everyone.
 
 I'm looking for an independence test between an OpenStack environment
 and virtual environments.
 
 In case of updating an openstack environment, you need to stop each
 OpenStack process, but you don't want the instances to be affected by
 OpenStack outages.
 So before maintenane, you want to make sure OpenStack and backing
 services(KVM, OVS, storage,.) are separate.
 
 For example.
   1) Creating a virtual environment on a OpenStack environment. this
 includes Nova instances, Neutron L2/3 networks, Cinder volumes and etc.
 
 I'd like to clarify more. Do you mean OpenStack on OpenStack environment?
 Or just mean VMs on OpenStack env?
 
 I meant just VMs on OpenStack env.
 When you stop some processes for update, say openstack-cinder-*, you
 want to make sure it won't disconnect volume/VM.

Thanks, I got it.

 
   2) Stopping one or more OpenStack's processes.
 
 Currently, Tempest can't stop the OpenStack processes. Because Tempest
 can operate OpenStack components through OpenStack APIs only for now.
 oh yes. Just like I feard.
 
 
 Thanks,
 -- Masayuki Igawa
 
   3) Running this test, and checking that each resource doesn't stop.
   4) Updating an OpenStack, editing configurations or etc.
 I assume such test is coverd by tempest.
 
 Dose Tempest have those test methods? or if not, do you think it's going
 to be handy if I make such test?
 
 
 Best regards,
 Tomoya Goto
 
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