Hi Jono, While Robert is sleeping, here's my take at your clarification questions based on our conversation.
On August 3, 2010, Jonathan Lange wrote: > On Tue, Aug 3, 2010 at 11:40 AM, Robert Collins > > <[email protected]> wrote: > > This one time, at weekly catchup call, Francis and I spoke about this > > plan ... :) > > > > We both think that its going to take significant time to get all the > > pieces in place, so we're proposing to make this whole thing even more > > incrementally adoptable. > > I'm going to try to condense this to see if I understand properly. > I'll indent my own clarification questions. > > 1. Set up a daily staging environment which has stable branch and > production schema. > Kind of like our current staging, but without the unreleased > database changes? Yes. > > 2. Rollout stable to just the appservers only when it's completely QAd > How do we know it's completely QAd? The QA team is working on qa-shepherd, a script that will report on revisions that still need QA and such. > Is there a facility to roll out just the QAd stuff? No. Un-qaed revisions blocks deployment. > This depends on fixing a deployment icing issue, right? Yes, otherwise this creates problem during the deployment. > Does this also depend on a one-button rollout to all appservers > script? > No, we already have that. It's like running the cherry-pick deployment script to all app servers, or running the automatic 'formerly-edge' update script on demand. > 3. Get rid of edge. Set up a redirect for legacy edge URLs. Rely on > feature flags to hide in-development features. > > Now at this point, how often will we be rolling out production > appserver-only changes? As often as we can. Once the process is smooth, we'll remove the 'push-button' aspect of it and deploy automatically when a new stretch of QA-ed revisions is available. > How much downtime does such a rollout cause? Once the static icing issue is resolved, none. (That's like current edge deployment) -- Francis J. Lacoste [email protected]
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