Build release tarballs in bazel and add make bazel-release rule

hack/lib/golang.sh

@@ -21,6 +21,7 @@ readonly KUBE_GOPATH="${KUBE_OUTPUT}/go"
 # The set of server targets that we are only building for Linux
 # Note: if you are adding something here, you might need to add it to
 # kube::build::source_targets in build/common.sh as well.
+# If you update this list, please also update build/release-tars/BUILD.
 kube::golang::server_targets() {
   local targets=(
     cmd/kube-proxy
@@ -40,6 +41,7 @@ readonly KUBE_SERVER_TARGETS=($(kube::golang::server_targets))
 readonly KUBE_SERVER_BINARIES=("${KUBE_SERVER_TARGETS[@]##*/}")
 
 # The set of server targets that we are only building for Kubernetes nodes 
+# If you update this list, please also update build/release-tars/BUILD.
 kube::golang::node_targets() {
   local targets=(
     cmd/kube-proxy
@@ -122,6 +124,7 @@ else
 fi
 
 # The set of client targets that we are building for all platforms
+# If you update this list, please also update build/release-tars/BUILD.
 readonly KUBE_CLIENT_TARGETS=(
   cmd/kubectl
   federation/cmd/kubefed
@@ -130,6 +133,7 @@ readonly KUBE_CLIENT_BINARIES=("${KUBE_CLIENT_TARGETS[@]##*/}")
 readonly KUBE_CLIENT_BINARIES_WIN=("${KUBE_CLIENT_BINARIES[@]/%/.exe}")
 
 # The set of test targets that we are building for all platforms
+# If you update this list, please also update build/release-tars/BUILD.
 kube::golang::test_targets() {
   local targets=(
     cmd/gendocs
@@ -149,6 +153,7 @@ kube::golang::test_targets() {
 readonly KUBE_TEST_TARGETS=($(kube::golang::test_targets))
 readonly KUBE_TEST_BINARIES=("${KUBE_TEST_TARGETS[@]##*/}")
 readonly KUBE_TEST_BINARIES_WIN=("${KUBE_TEST_BINARIES[@]/%/.exe}")
+# If you update this list, please also update build/release-tars/BUILD.
 readonly KUBE_TEST_PORTABLE=(
   test/e2e/testing-manifests
   test/kubemark
@@ -164,6 +169,7 @@ readonly KUBE_TEST_PORTABLE=(
 # Test targets which run on the Kubernetes clusters directly, so we only
 # need to target server platforms.
 # These binaries will be distributed in the kubernetes-test tarball.
+# If you update this list, please also update build/release-tars/BUILD.
 readonly KUBE_TEST_SERVER_TARGETS=(
   cmd/kubemark
   vendor/github.com/onsi/ginkgo/ginkgo