Build Docker with Go 1.4

[crawford]

Right now we are building Docker with Go 1.5 while upstream is still using Go 1.4. We cannot expect to have builds that are at least as stable as upstream until we use the same compiler.

[carmstrong]

@crawford Is this a prerequisite for getting Docker 1.9 in alpha? Just noticed #1623 and no PR yet for Docker 1.9.

[mischief]

@carmstrong no plans for 1.9 yet.

[carmstrong]

no plans for 1.9 yet.

:( We are hoping to get on 1.9 and test it out to hopefully get rid of the ridiculous flocks we had to introduce everywhere to work around the simultaneous layer issue on docker pull. This bit us several times: deis/deis#4590 deis/deis#4609 and is also the reason why we stayed pinned to Docker 1.5 for so long, even though it has a large memory leak.

The Docker team claims it'll be fixed in 1.9 after we complained about it: https://twitter.com/gabrtv/status/652294334960656384

So we're hoping for 1.9. Is there a major reason not to try it on alpha, @mischief? Other than the expected myriad of new issues that we don't yet know about?

[marineam]

@carmstrong the rollback is just for the 835.x.x branch which will be sticking to docker 1.8.x

Getting the 835 branch stabilized is a high priority right now but 1.9 should land in alpha soon, we just haven't had a chance to look at it yet.

[carmstrong]

@marineam Understood, thanks for the update.

[mischief]

fixed by coreos/coreos-overlay#1623

[hosh]

👍 woot! I can come off of the alpha channel now and don't have to use the bind-mount hack :-D