installer: Bump to Kubernetes 1.5.7

[Quentin-M]

• kube-apiserver now drops unneeded path information if an older version of Windows kubectl sends it. (#44585, @mml)
• Fix for kube-proxy healthcheck handling an update that simultaneously removes one port and adds another. (#44365, @MrHohn)
• Fix broken service accounts when using dedicated service account key. (#44169, @mikedanese)
• Update to fluentd-gcp:1.28.3, rebased on ubuntu-slim:0.8 (#43928, @ixdy)
• Fix polarity of NodePort logic to avoid leaked ports (#43259, @thockin)
• Upgrade golang versions to 1.7.5 (#41771, @cblecker)

[coreosbot]

Can one of the admins verify this patch?

[Quentin-M]

We still need to figure out what to do regarding to that bump (tag/release/nothing). Keep it there for now. Do not merge, do not release payload.

[alexsomesan]

A bit confused by this. Aren't we already at 1.6 ?
What am I missing here?

[Quentin-M]

We officially support 1.5 and therefore must ship an update payload. This might actually be done using the old repository.

…

On Apr 28, 2017, at 06:19, Alex Somesan ***@***.***> wrote: A bit confused by this. Aren't we already at 1.6 ? What am I missing here? — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub, or mute the thread.

[alexsomesan]

Got it, that makes sense. I wasn't sure what's the plan for updates to previous versions. On Fri, Apr 28, 2017 at 4:56 PM, Quentin Machu <notifications@github.com> wrote:

…

We officially support 1.5 and therefore must ship an update payload. This might actually be done using the old repository. > On Apr 28, 2017, at 06:19, Alex Somesan ***@***.***> wrote: > > A bit confused by this. Aren't we already at 1.6 ? > What am I missing here? > > — > You are receiving this because you authored the thread. > Reply to this email directly, view it on GitHub, or mute the thread. > — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#410 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/ABC-mzdV5ORV6tc9AdJI4hs5VxHsK2SOks5r0f4CgaJpZM4NKy9I> .

[yifan-gu]

new tco hash: 04ff675e2c28e6d706e431eb80cb5a181ceb50dc
Changes:

• Bumped operator-client.
• Fixed goroutine leaks.
• Add optional payload signature verification.

[Quentin-M]

Sorry for confusion, this is happening from the old repository!