Re: Juju devel 1.26-alpha2 is available for testing

2015-11-30 Thread Curtis Hovey-Canonical 
There are other options to play with juju+lxd on trusty...

On Fri, Nov 27, 2015 at 2:26 PM, Rick Harding
 wrote:
>
> On Fri, Nov 27, 2015 at 11:35 AM Mark Shuttleworth  wrote:
>>
>> On 27/11/15 16:21, Aaron Bentley wrote:
>>
>> It's dependent on what compiler was used to create the jujud binary.
>> AIUI, the Ubuntu policy is that nothing goes into a distroseries which
>> cannot be compiled with the tools in that distroseries.  Thus the
>> jujud for Trusty is compiled with the version of Go provided by that
>> platform.
>>
>>
>> My understanding is that a Go 1.5 backport to Trusty is part of the
>> current cycle planned work.
>
>
> Yes, the work for Go 1.5 into Trusty moves forward. For this alpha it's not
> yet ready to provide the build so my understanding is that the alpha build
> for Trusty is done with the current outdated tool chain. Once the Go
> toolchain is updated for Trusty the builds released will be in order.
>
> Aaron, please correct me if I'm mistaken there.

The Juju clients and agents built with Go lang are statically
compiled. They are Ubuntu release agnostic. The wily-built Juju runs
fine on Trusty and Precise (and Centos 7). You can install the wily
juju-core and juju-local packages to play with the lxd feature now.

Per the conversation above, the Juju PPAs build with a deps that
provides the Juju teams minimum and preferred Golang. We used this to
get newer Gos for precise without waiting on Ubuntu. We plan to switch
to switch to Go 1.5 soon at a part of our plan to change Juju's
minimum version of Go.


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Re: Juju devel 1.26-alpha2 is available for testing

2015-11-27 Thread Marco Ceppi 
Okay, but I've added the LXD daily/stable PPA which installed `go version
go1.5.1 linux/amd64`. My question is, are the LXD features locked to an
Ubuntu release or is it dependent on checking platform ability at run time?
My point being, I have a trusty machine which has a more recent version of
golang and the latest stable LXD software installed. If Juju won't work
simply because it's trusty then I need to file a bug before 1.26.0 lands.

Marco

On Fri, Nov 27, 2015 at 11:04 AM Aaron Bentley 
wrote:

> -BEGIN PGP SIGNED MESSAGE-
> Hash: SHA256
>
> On 2015-11-27 11:00 AM, Marco Ceppi wrote:
> > - Running Wily (LXD is installed by default)
> >
> >
> > For the LXD provider, I have the latest LXD installed on trusty,
> > will that work or is it hard-coded to wily+ ?
>
> It will not work.  Only platforms with Go 1.3 will work, because the
> LXD provider only builds with Go 1.3+.  See "Upgrading minimum Go
> version" in juju-dev for more discussion.
>
> Aaron
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Re: Juju devel 1.26-alpha2 is available for testing

2015-11-27 Thread Eric Snow 
On Fri, Nov 27, 2015 at 9:00 AM, Marco Ceppi  wrote:
> On Fri, Nov 27, 2015 at 9:37 AM Aaron Bentley 
> wrote:
>>  Requirements
>>
>> - Running Wily (LXD is installed by default)
>>
>
> For the LXD provider, I have the latest LXD installed on trusty, will that
> work or is it hard-coded to wily+ ?

It will work fine if using a juju built with Go 1.3+ (e.g. the juju
package on wily or building locally and using --upload-tools).  The
provider uses the LXD Go bindings which require Go 1.3+.  It is a
compile-time issue rather than a run-time check.

Until trusty ships with Go 1.3+ we cannot ship a Juju that depends on
the LXD Go bindings, thus the LXD provider is disabled if Juju is
compiled with anything older than Go 1.3.  As Aaron said, there's a
separate thread discussing how to solve the problem of getting the
latest full-featured Juju on trusty.

-eric

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Re: Juju devel 1.26-alpha2 is available for testing

2015-11-27 Thread Aaron Bentley 
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Hash: SHA256

On 2015-11-27 11:10 AM, Marco Ceppi wrote:
> Okay, but I've added the LXD daily/stable PPA which installed `go 
> version go1.5.1 linux/amd64`. My question is, are the LXD features 
> locked to an Ubuntu release or is it dependent on checking
> platform ability at run time?

It's dependent on what compiler was used to create the jujud binary.
AIUI, the Ubuntu policy is that nothing goes into a distroseries which
cannot be compiled with the tools in that distroseries.  Thus the
jujud for Trusty is compiled with the version of Go provided by that
platform.

> My point being, I have a trusty machine which has a more recent
> version of golang and the latest stable LXD software installed. If
> Juju won't work simply because it's trusty then I need to file a
> bug before 1.26.0 lands.

I recommend contributing to the "Upgrading minimum Go version" thread.

Aaron
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Re: Juju devel 1.26-alpha2 is available for testing

2015-11-27 Thread Rick Harding 
On Fri, Nov 27, 2015 at 11:35 AM Mark Shuttleworth  wrote:

> On 27/11/15 16:21, Aaron Bentley wrote:
>
> It's dependent on what compiler was used to create the jujud binary.
> AIUI, the Ubuntu policy is that nothing goes into a distroseries which
> cannot be compiled with the tools in that distroseries.  Thus the
> jujud for Trusty is compiled with the version of Go provided by that
> platform.
>
>
> My understanding is that a Go 1.5 backport to Trusty is part of the
> current cycle planned work.
>

Yes, the work for Go 1.5 into Trusty moves forward. For this alpha it's not
yet ready to provide the build so my understanding is that the alpha build
for Trusty is done with the current outdated tool chain. Once the Go
toolchain is updated for Trusty the builds released will be in order.

Aaron, please correct me if I'm mistaken there.
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Re: Juju devel 1.26-alpha2 is available for testing

2015-11-27 Thread Marco Ceppi 
On Fri, Nov 27, 2015 at 9:37 AM Aaron Bentley 
wrote:

> # juju-core 1.26-alpha2
>

This is probably the most anticipated release of the year. Looking forward
to trying out all the new features!


> ### LXD Provider
>
> The new LXD provider is the best way to use Juju locally.
>
> The state-server is no longer your host machine; it is now a LXC
> container. This keeps your host machine clean and allows you to utilize
> your local environment more like a traditional Juju environment. Because
> of this, you can test things like Juju high-availability without needing
> to utilize a cloud provider.
>
> The previous local provider remains functional for backwards
> compatibility.
>
>  Requirements
>
> - Running Wily (LXD is installed by default)
>
>
For the LXD provider, I have the latest LXD installed on trusty, will that
work or is it hard-coded to wily+ ?


> - Import the LXD cloud-images that you intend to deploy and register
>   an alias:
>
>   lxd-images import ubuntu trusty --alias ubuntu-trusty
>   lxd-images import ubuntu wily --alias ubuntu-wily
>
>   or register an alias for your existing cloud-images
>
>   lxc image alias create ubuntu-trusty 
>   lxc image alias create ubuntu-wily 
>
> - For alpha2, you must specify the "--upload-tools" flag when
>   bootstrapping the environment that will use trusty cloud-images.
>   This is because most of Juju's charms are for Trusty, and the
>   agent-tools for Trusty don't yet have LXD support compiled in.
>
> juju bootstrap --upload-tools
>
> "--upload-tools" is not required for deploying a wily state-server and
> wily services.
>
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Re: Juju devel 1.26-alpha2 is available for testing

2015-11-27 Thread Aaron Bentley 
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Hash: SHA256

On 2015-11-27 11:00 AM, Marco Ceppi wrote:
> - Running Wily (LXD is installed by default)
> 
> 
> For the LXD provider, I have the latest LXD installed on trusty,
> will that work or is it hard-coded to wily+ ?

It will not work.  Only platforms with Go 1.3 will work, because the
LXD provider only builds with Go 1.3+.  See "Upgrading minimum Go
version" in juju-dev for more discussion.

Aaron
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