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Remove vendored kube2sky, Add kube-dns as cluster addon #738

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merged 2 commits into from
Oct 26, 2016

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r2d4
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@r2d4 r2d4 commented Oct 21, 2016

Removes the vendored in kube2sky built into the minikube binary and
replaces the dns solution with kube-dns cluster addon. This will allow
users to swap out DNS implementations by simply turning off the
kube-dns addon.

TBD: How to handle older localkube versions?

These versions will try to run their own DNS unless --enable-dns=false is passed into localkube. This will conflict with the addon's clusterIP.

Proposed fix in this PR
I deprecated the flag in newer versions of localkube, and made minikube always pass in enable-dns=false. This will be a no-op in new versions of localkube and disable DNS in favor of the cluster addon in older versions. We won't need to rebuild any old versions of localkube, but are stuck with a deprecated flag.

PTAL a look at the first commit which contains the changes. The second is only removing the unused vendor packages.

Fixes #55

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codecov-io commented Oct 21, 2016

Current coverage is 33.95% (diff: 100%)

Merging #738 into master will increase coverage by 2.66%

@@             master       #738   diff @@
==========================================
  Files            43         42     -1   
  Lines          1975       1820   -155   
  Methods           0          0          
  Messages          0          0          
  Branches          0          0          
==========================================
  Hits            618        618          
+ Misses         1228       1073   -155   
  Partials        129        129          

Powered by Codecov. Last update bdfaf1e...91b1155

@@ -51,7 +50,7 @@ func NewLocalkubeServer() *localkube.LocalkubeServer {
// AddFlags adds flags for a specific LocalkubeServer
func AddFlags(s *localkube.LocalkubeServer) {
flag.BoolVar(&s.Containerized, "containerized", s.Containerized, "If kubelet should run in containerized mode")
flag.BoolVar(&s.EnableDNS, "enable-dns", s.EnableDNS, "If dns should be enabled")
flag.BoolVar(&s.EnableDNS, "enable-dns", s.EnableDNS, "DEPRECATED: Please run kube-dns as an cluster addon")
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@aaron-prindle aaron-prindle Oct 21, 2016

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Should we just remove this flag? It seems as though it does nothing now. Just a suggestion though, either way seems fine.

EDIT: Talked about this offline, flag is there for compatibility with previous versions of localkube

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dlorenc commented Oct 21, 2016

@minikube-bot test this please

@r2d4 r2d4 mentioned this pull request Oct 24, 2016
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dlorenc commented Oct 24, 2016

Would you mind rebasing onto master and rerunning tests?

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r2d4 commented Oct 24, 2016

Rebased, test rerunning now

Removes the vendored in kube2sky built into the minikube binary and
replaces the dns solution with kube-dns cluster addon.  This will allow
users to swap out DNS implementations by simply turning off the
kube-dns addon.
These were referenced by kube2sky and our dns implementation
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Thanks for doing this!

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dlorenc commented Oct 26, 2016

This should fix #55 by making it obsolete.

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philips commented Oct 28, 2016

Nice!

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Localkube should vendor kube-dns instead of the current kube2sky solution
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