Hi Nicolas

If you want to go with a decoration approach (whether it is via a
resource provider or decorator), a few classes I put into the
whiteboard a while ago might help [1]. I once used them to "mount"
repetitive and/or dynamic parts of AEM dialog definitions into a
static AEM dialog definition.

Regards
Julian

[1] https://github.com/apache/sling-whiteboard/tree/feature/sling-resource-graft

On Thu, Mar 10, 2022 at 10:55 AM Konrad Windszus <[email protected]> wrote:
>
> Hi Nicolas, anything which eases the process of content migration for 
> blue/green deployments will be highly appreciated. Hiding the differences on 
> the resource level sounds like a good idea although you probably have to 
> distinguish between read/write access. Looking forward to your proposal.
> Konrad
>
> > Am 10.03.2022 um 10:51 schrieb Nicolas Peltier <[email protected]>:
> >
> > Hey,
> >
> > i've been discussing here & there several times about having sling pipes in
> > a CI/CD pipeline as part of a new application deployment where content
> > handling changed substantially and application v(n+1) can't work with
> > content v(n).
> > pipes responsibility would be to handle the switch of content to v(n+1).
> >
> > thinking/discussing about it, it does not sound right to me if there is no
> > possibility to serve 2 versions of the content at the same time and to
> > quickly validate that everything is correct, as it ends up being non
> > validated code (pipe on specific prod content is new).
> >
> > The other alternative is to have code handling both versions of the
> > content, when no occurrence of the v(n) content is there anymore (which can
> > be done by code, or accelerated eventually sling pipe execution), switch to
> > a simpler version. To make that approach less expensive, i was thinking
> > about something at sling level (resource provider and decorator) that would
> > help doing those things quicker, through some annotations.
> >
> > Any thoughts / feedbacks / concerns before i dig deeper ?
> >
> > Nicolas
>

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