x/build/builders: move FreeBSD builders to GCE

[bradfitz]

This bug is about moving the FreeBSD builders to GCE per the document
http://golang.org/s/builderplan

For FreeBSD it looks like we can use http://mfsbsd.vx.sk/ to prepare a FreeBSD image
that boots, does a single build (in memory), and then shuts down.

See:
https://groups.google.com/forum/#!msg/gce-discussion/YWoa3Aa_49U/1MfTsmgoaNkJ

[bradfitz]

Comment 1:

More details are in issue #8642 about OpenBSD, which will be the same thing essentially.
mfsBSD is just the tool we'll use to prepare the bootable image described in issue #8642.

[bradfitz]

Comment 2:

Labels changed: added builder.

[wathiede]

Is the goal to have all the FreeBSD versions Go supports running as builders? I know GCE had (has?) some problems with versions prior to 10, largely disk related. Building from RAM might make pre-10 FreeBSD usable, but there could still be challenges getting it to booted far enough to build.

[adg]

I'm happy to just build against FreeBSD 10+, although the current builders
are running 9.1.

For the older versions, maybe we could run them (really slowly) inside qemu
on gce?

On 18 January 2015 at 16:36, Bill notifications@github.com wrote:

Is the goal to have all the FreeBSD versions Go supports running as
builders? I know GCE had (has?) some problems with versions prior to 10,
largely disk related. Building from RAM might make pre-10 FreeBSD usable,
but there could still be challenges getting it to booted far enough to
build.

—
Reply to this email directly or view it on GitHub
#8639 (comment).

[bradfitz]

Let's start with FreeBSD 10 on GCE running the buildlet. We can run older versions elsewhere (RootBSD, AWS) too, but they won't be available via gomote and such.

[bradfitz]

@wathiede sent https://go-review.googlesource.com/#/c/3053/