Hi Tim,
That's very close to where I am now, except we use mercurial instead
of svn. :)
However, I'm more searching for non-same hosts (i.e. no SAN). I'm
basically asking the question of puppet managed ( file
{ source=>"puppet://.... } ) vs. another scheme.
My hunch is I do NOT want puppet managing 1000's of files and
propagating them. Maybe have puppet monitor a version file, and when
that changes, execute an rsync to bring the directories into sync.
Thanks for the response!
Mike
On Jun 14, 7:06 pm, Tim Allingham <[email protected]> wrote:
> Hi Mike,
>
> I'm not sure if your after puppet-specific methods, or just general
> systems for this?
>
> When we set up our load balancing and DR, we preferred to keep it
> simple, the methods used are outlined below.
>
> 1) Site code - This is managed but subversion, we maintain separate
> repositories for testing and production environments - when a change is
> ready to go live it is merged into the stable codebase.
> - To then update the production servers, a number of methods are
> available
> 1) For minor updates, there is a nightly cronjob that updates
> all the live servers, and DR setup
> 2) For critical fixes. I usually use cssh to trigger the update
> immediately, alternatively we have an authenticating email daemon that
> can be used to trigger the update cron at any time.
>
> - For user contributed files (ie image/video uploads, pdf
> attachments etc) We use a centralised SAN store for the upload
> locations. All uploads are also written to a temporary location and then
> rsync'd to the DR location every 15 minutes.
>
> - For SQL - we use MySQL replication, in a Master-Master setup
> between live and DR locations, with each master then having slaves to
> balance the load
>
> Cheers
>
> Tim
>
>
>
> -----Original Message-----
> From: drmikecrowe <[email protected]>
>
> Reply-to: [email protected]
> To: Puppet Users <[email protected]>
> Subject: [Puppet Users] POLL: Migrating web changes across load-balanced
> servers
> Date: Sun, 14 Jun 2009 14:05:24 -0700 (PDT)
>
> Hi folks,
>
> I'm polling the group to see what some basic techniques are that
> people use to migrate web sites to load-balanced servers.
>
> In the past, IRC folks have mentioned rsysnc as the way.
>
> I'm specifically curious if people are:
>
> 1) Letting puppet MD5 a website via a file{} tag? Could that be done?
> 2) Using version control somehow? I've been toying with creating a
> mercurial plugin somehow. If you push some changes to a production
> machine, you can configure mercurial to auto-update.
>
> What's some ideas? Any pointers?
>
> TIA
> Mike
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