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Merge pull request #25504 from andyzheng0831/binary

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GCI: Ensure that the right version of kubelet is used
This commit is contained in:
Daniel Smith 2016-05-18 15:04:32 -07:00
commit 01cf9869fc
1 changed files with 23 additions and 6 deletions
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29
cluster/gce/trusty/configure.sh
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@ -122,17 +122,34 @@ install_kube_binary_config() {
# a test cluster.
readonly BIN_PATH="/usr/bin"
if ! which kubelet > /dev/null || ! which kubectl > /dev/null; then
# This should be the case of trusty.
cp "${src_dir}/kubelet" "${BIN_PATH}"
cp "${src_dir}/kubectl" "${BIN_PATH}"
elif [ "${TEST_CLUSTER:-}" = "true" ]; then
kube_bin="${kube_home}/bin"
else
# This should be the case of GCI.
readonly kube_bin="${kube_home}/bin"
mkdir -p "${kube_bin}"
mount --bind "${kube_bin}" "${kube_bin}"
mount -o remount,rw,exec "${kube_bin}"
cp "${src_dir}/kubelet" "${kube_bin}"
cp "${src_dir}/kubectl" "${kube_bin}"
mount --bind "${kube_bin}/kubelet" "${BIN_PATH}/kubelet"
mount --bind -o remount,ro,^noexec "${BIN_PATH}/kubelet" "${BIN_PATH}/kubelet"
mount --bind "${kube_bin}/kubectl" "${BIN_PATH}/kubectl"
mount --bind -o remount,ro,^noexec "${BIN_PATH}/kubectl" "${BIN_PATH}/kubectl"
chmod 544 "${kube_bin}/kubelet"
chmod 544 "${kube_bin}/kubectl"
# If the built-in binary version is different from the expected version, we use
# the downloaded binary. The simplest implementation is to always use the downloaded
# binary without checking the version. But we have another version guardian in GKE.
# So, we compare the versions to ensure this run-time binary replacement is only
# applied for OSS kubernetes.
readonly builtin_version="$(/usr/bin/kubelet --version=true | cut -f2 -d " ")"
readonly required_version="$(/home/kubernetes/bin/kubelet --version=true | cut -f2 -d " ")"
if [ "${TEST_CLUSTER:-}" = "true" ] || [ "${builtin_version}" != "${required_version}" ]; then
mount --bind "${kube_bin}/kubelet" "${BIN_PATH}/kubelet"
mount --bind "${kube_bin}/kubectl" "${BIN_PATH}/kubectl"
else
# Remove downloaded binary just to prevent misuse.
rm -f "${kube_bin}/kubelet"
rm -f "${kube_bin}/kubectl"
fi
fi
# Put kube-system pods manifests in /home/kubernetes/kube-manifests/.