hack/build-go.sh --use_go_build would fail because e2e.test was not being
excluded from the set of things that we were "go build"ing
Instead of walking all binaries, only walk static and nonstatic
```
$ hack/build-go.sh
+++ [0524 18:09:51] Building go targets for linux/amd64:
cmd/kube-proxy
cmd/kube-apiserver
cmd/kube-controller-manager
cmd/kubelet
cmd/hyperkube
cmd/kubernetes
plugin/cmd/kube-scheduler
cmd/kubectl
cmd/integration
cmd/gendocs
cmd/genman
cmd/genbashcomp
examples/k8petstore/web-server
github.com/onsi/ginkgo/ginkgo
test/e2e/e2e.test
+++ [0524 18:09:51] +++ Warning: stdlib pkg with cgo flag not found.
+++ [0524 18:09:51] +++ Warning: stdlib pkg cannot be rebuilt since /usr/lib/golang/pkg is not writable by eparis
+++ [0524 18:09:51] +++ Warning: Make /usr/lib/golang/pkg writable for eparis for a one-time stdlib install, Or
+++ [0524 18:09:51] +++ Warning: Rebuild stdlib using the command 'CGO_ENABLED=0 go install -a -installsuffix cgo std'
+++ [0524 18:09:51] +++ Falling back to go build, which is slower
**************can't load package: package github.com/GoogleCloudPlatform/kubernetes/test/e2e/e2e.test: cannot find package "github.com/GoogleCloudPlatform/kubernetes/test/e2e/e2e.test" in any of:
/usr/lib/golang/src/github.com/GoogleCloudPlatform/kubernetes/test/e2e/e2e.test (from $GOROOT)
/storage/kubernetes/_output/local/go/src/github.com/GoogleCloudPlatform/kubernetes/test/e2e/e2e.test (from $GOPATH)
/storage/kubernetes/Godeps/_workspace/src/github.com/GoogleCloudPlatform/kubernetes/test/e2e/e2e.test
!!! Error in /storage/kubernetes/hack/lib/golang.sh:339
'go build -o "${outfile}" "${goflags[@]:+${goflags[@]}}" -ldflags "${version_ldflags}" "${binary}"' exited with status 1
Call stack:
1: /storage/kubernetes/hack/lib/golang.sh:339 kube::golang::build_binaries_for_platform(...)
2: /storage/kubernetes/hack/lib/golang.sh:488 kube::golang::build_binaries(...)
3: hack/build-go.sh:26 main(...)
Exiting with status 1
!!! Error in /storage/kubernetes/hack/lib/golang.sh:406
'( kube::golang::setup_env; local version_ldflags; version_ldflags=$(kube::version::ldflags); local host_platform; host_platform=$(kube::golang::host_platform); local goflags; eval "goflags=(${KUBE_GOFLAGS:-})"; local use_go_build; local -a targets=(); local arg; for arg in "$@";
do
if [[ "${arg}" == "--use_go_build" ]]; then
use_go_build=true;
else
if [[ "${arg}" == -* ]]; then
goflags+=("${arg}");
else
targets+=("${arg}");
fi;
fi;
done; if [[ ${#targets[@]} -eq 0 ]]; then
targets=("${KUBE_ALL_TARGETS[@]}");
fi; local -a platforms=("${KUBE_BUILD_PLATFORMS[@]:+${KUBE_BUILD_PLATFORMS[@]}}"); if [[ ${#platforms[@]} -eq 0 ]]; then
platforms=("${host_platform}");
fi; local binaries; binaries=($(kube::golang::binaries_from_targets "${targets[@]}")); local parallel=false; if [[ ${#platforms[@]} -gt 1 ]]; then
local gigs; gigs=$(kube::golang::get_physmem); if [[ ${gigs} -gt ${KUBE_PARALLEL_BUILD_MEMORY} ]]; then
kube::log::status "Multiple platforms requested and available ${gigs}G > threshold ${KUBE_PARALLEL_BUILD_MEMORY}G, building platforms in parallel"; parallel=true;
else
kube::log::status "Multiple platforms requested, but available ${gigs}G < threshold ${KUBE_PARALLEL_BUILD_MEMORY}G, building platforms in serial"; parallel=false;
fi;
fi; if [[ "${parallel}" == "true" ]]; then
kube::log::status "Building go targets for ${platforms[@]} in parallel (output will appear in a burst when complete):" "${targets[@]}"; local platform; for platform in "${platforms[@]}";
do
( kube::golang::set_platform_envs "${platform}"; kube::log::status "${platform}: go build started"; kube::golang::build_binaries_for_platform ${platform} ${use_go_build:-}; kube::log::status "${platform}: go build finished" ) &> "/tmp//${platform//\//_}.build" &
done; local fails=0; for job in $(jobs -p);
do
wait ${job} || let "fails+=1";
done; for platform in "${platforms[@]}";
do
cat "/tmp//${platform//\//_}.build";
done; exit ${fails};
else
for platform in "${platforms[@]}";
do
kube::log::status "Building go targets for ${platform}:" "${targets[@]}"; kube::golang::set_platform_envs "${platform}"; kube::golang::build_binaries_for_platform ${platform} ${use_go_build:-};
done;
fi )' exited with status 1
Call stack:
1: /storage/kubernetes/hack/lib/golang.sh:406 kube::golang::build_binaries(...)
2: hack/build-go.sh:26 main(...)
Exiting with status 1
```
Not doing so breaks e2e tests and people that may be using them,
even though we will eventually want to stop supporting this now
that we have better alternatives for typical use cases (NodePort)
A service with a NodePort set will listen on that port, on every node.
This is both handy for some load balancers (AWS ELB) and for people
that want to expose a service without using a load balancer.
