Re: [openstack-dev] [devstack]Question about using Devstack

[Young Yang]

@Bob Ball
My goal is that I want to reboot devstack DomU without reinstall devstack.

Thanks to @ALL

I finally reboot devstack successfully without reinstalling.in my case by
this way.


First
I add  `exit 0` before the first line of stack.sh to stop openstack
running.

Then i  use these commands to start the services.


cd /etc/apache2/sites-enabled && sudo ln -s ../sites-available/keystone.conf
sudo  service apache2 restart
sudo service rabbitmq-server restart
sudo service mysql restart
sudo service tgt restart
truncate -s 10737418240 /opt/stack/data/stack-volumes-default-backing-file
truncate -s
10737418240 /opt/stack/data/stack-volumes-lvmdriver-1-backing-file
sudo losetup -f --show /opt/stack/data/stack-volumes-default-backing-file
CINDER_DEVICE=`sudo losetup -f
--show /opt/stack/data/stack-volumes-lvmdriver-1-backing-file`
sudo pvcreate $CINDER_DEVICE
sudo vgcreate  stack-volumes-lvmdriver-1 $CINDER_DEVICE
cd /opt/stack/devstack/   && ./rejoin-stack.sh


Some data are lost such as the data in lvm volume used by cinder. But  most
of my data are kept.




On Mon, Nov 23, 2015 at 8:51 PM, Bob Ball  wrote:

> Hi Young,
>
>
>
> venv create: /opt/stack/tempest/.tox/venv
> venv installdeps: -r/opt/stack/tempest/requirements.txt,
> -r/opt/stack/tempest/test-requirements.txt
> ERROR: invocation failed (exit code 1), logfile:
> /opt/stack/tempest/.tox/venv/log/venv-1.log
> ERROR: actionid: venv
> msg: getenv
> cmdargs: [local('/opt/stack/tempest/.tox/venv/bin/pip'), 'install', '-U',
> '-r/opt/stack/tempest/requirements.txt',
> '-r/opt/stack/tempest/test-requirements.txt']
>
>
>
> My interpretation is that because tox is using pip directly, which is now
> outside of devstack and knows nothing about the OFFLINE flag.
>
> This is in the “install_tempest” function from devstack/lib/tempest.  A
> code change would be needed to stop tox from running if OFFLINE was
> specified.  At first glance, I believe this is probably a devstack bug.
>
>
>
> I suspect that, since Tempest creates flavors, you will not be able to use
> tempest in OFFLINE=true mode, but you may be able to use other services if
> you remove tempest from ENABLED_SERVICES.
>
>
>
> @jordan.pittier  @Bob Ball
>
> If I can ensure my IP address , localrc and everything else are not
> changed, is there any way I can achieve my goal?
>
>
>
> I don’t think I understand what your goal is – perhaps if you clarify
> exactly what you’re trying to achieve then we can answer the question.
>
>
>
> Thanks,
>
>
>
> Bob
>
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>
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[openstack-dev] [devstack]Question about using Devstack

[Young Yang]

Hi,
I'm using devstack to deploy stable/Kilo in my Xenserver.
I successfully deploy devstack. But I found that every time I restart it,
devstack always run ./stack.sh to clear all my data and resintall all the
components.
So here comes  the questions.

1) Can I stop devstack from reinstalling after rebooting and just use the
openstack installed successfully last time.
I've tried  replacing the stack.sh with another blank shell script to stop
it running. Then  It didn't reinstall the services after rebooting.
However, some services didn't start successfully.

2) I found that devstack will exit if it is unable to connect the Internet
when rebooting.
Is there any way I can reboot devstack successfully without connection to
the Internet after I've install it successfully with connection to the
Internet.

Thanks in advance !  :)
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Re: [openstack-dev] [devstack]Question about using Devstack

[Young Yang]

Really thanks for responsing so rapidly!!

@ozamiatin
I forget to mention that I've run rejoin-stack.sh and  manually started
apache.
However,  something is not still properly configured.  Such as  lvm volume
group is not created.

@jordan.pittier
Really thanks for you  OFFLINE advice. It make some thing offline now. But
it fails finally.
It gives such error.
I tried both OFFLINE=True and OFFLINE=yes in my local rc.

venv create: /opt/stack/tempest/.tox/venv
> venv installdeps: -r/opt/stack/tempest/requirements.txt,
> -r/opt/stack/tempest/test-requirements.txt
> ERROR: invocation failed (exit code 1), logfile:
> /opt/stack/tempest/.tox/venv/log/venv-1.log
> ERROR: actionid: venv
> msg: getenv
> cmdargs: [local('/opt/stack/tempest/.tox/venv/bin/pip'), 'install', '-U',
> '-r/opt/stack/tempest/requirements.txt',
> '-r/opt/stack/tempest/test-requirements.txt']
> env: {'UPSTART_EVENTS': 'stopped', 'LOGNAME': 'stack', 'USER': 'stack',
> 'os_RELEASE': '14.04', 'OS_REGION_NAME': 'RegionOne',
> .. NOTICE I ignore some error here
> 
>  Retrying (Retry(total=0, connect=None, read=None, redirect=None)) after
> connection broken by 'ProtocolError('Connection aborted.', gaierror(-2,
> 'Name or service not known'))': /simple/pbr/
>   Could not find a version that satisfies the requirement pbr>=1.6 (from
> -r /opt/stack/tempest/requirements.txt (line 1)) (from versions: )
> No matching distribution found for pbr>=1.6 (from -r
> /opt/stack/tempest/requirements.txt (line 1))
> ERROR: could not install deps [-r/opt/stack/tempest/requirements.txt,
> -r/opt/stack/tempest/test-requirements.txt]; v =
> InvocationError('/opt/stack/tempest/.tox/venv/bin/pip install -U
> -r/opt/stack/tempest/requirements.txt
> -r/opt/stack/tempest/test-requirements.txt (see
> /opt/stack/tempest/.tox/venv/log/venv-1.log)', 1)
> ___ summary
> 
> ERROR:   venv: could not install deps
> [-r/opt/stack/tempest/requirements.txt,
> -r/opt/stack/tempest/test-requirements.txt]; v =
> InvocationError('/opt/stack/tempest/.tox/venv/bin/pip install -U
> -r/opt/stack/tempest/requirements.txt
> -r/opt/stack/tempest/test-requirements.txt (see
> /opt/stack/tempest/.tox/venv/log/venv-1.log)', 1)
> Error on exit
> World dumping... see /opt/stack/logs/worlddump-2015-11-23-121956.txt for
> details




@Bob Ball
Thanks your mirantis offline advice, I'll try it later :)

@yatinkumbhare
thanks, I'll try it latter.

@jordan.pittier  @Bob Ball
If I can ensure my IP address , localrc and everything else are not
changed, is there any way I can achieve my goal?




On Mon, Nov 23, 2015 at 7:07 PM, Oleksii Zamiatin <ozamia...@mirantis.com>
wrote:

>
>
> On Mon, Nov 23, 2015 at 12:58 PM, Young Yang <afe.yo...@gmail.com> wrote:
>
>> Hi,
>> I'm using devstack to deploy stable/Kilo in my Xenserver.
>> I successfully deploy devstack. But I found that every time I restart it,
>> devstack always run ./stack.sh to clear all my data and resintall all the
>> components.
>> So here comes  the questions.
>>
>> 1) Can I stop devstack from reinstalling after rebooting and just use the
>> openstack installed successfully last time.
>> I've tried  replacing the stack.sh with another blank shell script to
>> stop it running. Then  It didn't reinstall the services after rebooting.
>> However, some services didn't start successfully.
>>
>
> try rejoin-stack.sh - it is in the same folder as unstack.sh, stack.sh
>
>
>>
>> 2) I found that devstack will exit if it is unable to connect the
>> Internet when rebooting.
>> Is there any way I can reboot devstack successfully without connection to
>> the Internet after I've install it successfully with connection to the
>> Internet.
>>
>> Thanks in advance !  :)
>>
>> __
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>> openstack-dev-requ...@lists.openstack.org?subject:unsubscribe
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>>
>>
>
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Re: [openstack-dev] Is there any way I can completely erase all the data when deleting a cinder volume

[Young Yang]

Oh, I missed that configuration.
Thanks very much!

On Wed, Nov 18, 2015 at 9:21 PM, Duncan Thomas <duncan.tho...@gmail.com>
wrote:

> For the LVM and raw block device drivers, there is already an option to do
> that - set volume_clear to 'zero' in cinder.conf
>
> If you want this for other drivers, then the code could easily be adopted,
> however I would question whether it is a good idea - the I/O load of
> zeroing out volumes is very large, and can easily overshadow the other I/O
> on the system significantly.
>
> If you are using the LVM driver, I'd suggest investigating the thin
> provisioning options, since they provide similar levels of tenant security
> (though not disk disposal security) with far better performance.
>
> On 18 November 2015 at 10:03, Young Yang <afe.yo...@gmail.com> wrote:
>
>>
>> There are some sensitive data in my volume.
>> I hope openstack can completely erase all the data (e.g. overwrite the
>> whole volume will 0 bits) when deleting a cinder volume.
>>
>> I plan to write some code to make Openstack to mount that volume and
>> rewrite the whole volume with 0 bits.
>>
>> But I'm wondering if there is any better way to accomplish that.
>>
>> Thanks in advance! :)
>>
>>
>>
>>
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>>
>
>
> --
> --
> Duncan Thomas
>
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[openstack-dev] Is there any way I can completely erase all the data when deleting a cinder volume

[Young Yang]

There are some sensitive data in my volume.
I hope openstack can completely erase all the data (e.g. overwrite the
whole volume will 0 bits) when deleting a cinder volume.

I plan to write some code to make Openstack to mount that volume and
rewrite the whole volume with 0 bits.

But I'm wondering if there is any better way to accomplish that.

Thanks in advance! :)
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[openstack-dev] What's the best way to deploy openstack on XenServer for production?

[Young Yang]

Hi,

I'm trying to use openstack to manage Xenserver.
I've read https://wiki.openstack.org/wiki/XenServer/GettingStarted

It says
This is an opinionated guide to setting up an OpenStack Cloud using
Xen/XenServer. Use this to get started quickly. It is far from the only way
to setup OpenStack using Xen.


And it warns
Warning
This is still a work in progress.


It recommend devstack to deploy XenServer.
However,  [devstack](
https://github.com/openstack-dev/devstack/blob/master/tools/xen/README.md)
says
The purpose of the code in this directory it to help developers bootstrap
a XenServer 6.2 (older versions may also work) + OpenStack *development
environment*.

So i'm wondering that if there is a better way to deploy openstack on
XenServer for production???

Thanks in advance! :)
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