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Merge pull request #86316 from pierewoj/master

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Use private master IP in GCE kubemark tests
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Kubernetes Prow Robot 2019-12-17 19:47:57 -08:00 committed by GitHub
commit eaa68dd247
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3 changed files with 46 additions and 7 deletions
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28
test/kubemark/gce/util.sh
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@ -40,6 +40,7 @@ function create-kubemark-master {
export KUBE_TEMP="${KUBE_TEMP}"
export KUBECONFIG="${RESOURCE_DIRECTORY}/kubeconfig.kubemark"
export KUBECONFIG_INTERNAL="${RESOURCE_DIRECTORY}/kubeconfig-internal.kubemark"
export CLUSTER_NAME="${CLUSTER_NAME}-kubemark"
export KUBE_CREATE_NODES=false
export KUBE_GCE_INSTANCE_PREFIX="${KUBE_GCE_INSTANCE_PREFIX}-kubemark"
@ -80,6 +81,33 @@ function create-kubemark-master {
"${KUBE_ROOT}/hack/e2e-internal/e2e-grow-cluster.sh"
done
fi
# The e2e-up.sh script is not sourced, so we don't have access to variables that
# it sets. Instead, we read data which was written to the KUBE_TEMP directory.
# The cluster-location is either ZONE (say us-east1-a) or REGION (say us-east1).
# To get REGION from location, only first two parts are matched.
REGION=$(grep -o "^[a-z]*-[a-z0-9]*" "${KUBE_TEMP}"/cluster-location.txt)
MASTER_NAME="${KUBE_GCE_INSTANCE_PREFIX}"-master
MASTER_INTERNAL_IP=$(gcloud compute addresses describe "${MASTER_NAME}-internal-ip" \
--project "${PROJECT}" --region "${REGION}" -q --format='value(address)')
MASTER_IP=$(gcloud compute addresses describe "${MASTER_NAME}-ip" \
--project "${PROJECT}" --region "${REGION}" -q --format='value(address)')
# If cluster uses private master IP, two kubeconfigs are created:
# - kubeconfig with public IP, which will be used to connect to the cluster
# from outside of the cluster network
# - kubeconfig with private IP (called internal kubeconfig), which will be
# used to create hollow nodes.
#
# Note that hollow nodes might use either of these kubeconfigs, but
# using internal one is better from performance and cost perspective, since
# traffic does not need to go through Cloud NAT.
if [[ -n "${MASTER_INTERNAL_IP:-}" ]]; then
echo "Writing internal kubeconfig to '${KUBECONFIG_INTERNAL}'"
ip_regexp=${MASTER_IP//./\\.} # escape ".", so that sed won't treat it as "any char"
sed "s/${ip_regexp}/${MASTER_INTERNAL_IP}/g" "${KUBECONFIG}" > "${KUBECONFIG_INTERNAL}"
fi
)
}

4
test/kubemark/skeleton/util.sh
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@ -26,6 +26,10 @@ function authenticate-docker {
# This function should create kubemark master and write kubeconfig to
# "${RESOURCE_DIRECTORY}/kubeconfig.kubemark".
# If a cluster uses private master IP, create-kubemark-master might also write
# a second kubeconfig to "${RESOURCE_DIRECTORY}/kubeconfig-internal.kubemark".
# The difference between these two kubeconfigs is that the internal one uses
# private master IP, which might be better suited for setting up hollow nodes.
function create-kubemark-master {
echo "Creating cluster..."
}

21
test/kubemark/start-kubemark.sh
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@ -38,6 +38,7 @@ KUBECTL="${KUBE_ROOT}/cluster/kubectl.sh"
KUBEMARK_DIRECTORY="${KUBE_ROOT}/test/kubemark"
RESOURCE_DIRECTORY="${KUBEMARK_DIRECTORY}/resources"
LOCAL_KUBECONFIG="${RESOURCE_DIRECTORY}/kubeconfig.kubemark"
INTERNAL_KUBECONFIG="${RESOURCE_DIRECTORY}/kubeconfig-internal.kubemark"
# Generate a random 6-digit alphanumeric tag for the kubemark image.
# Used to uniquify image builds across different invocations of this script.
@ -96,12 +97,12 @@ function create-kube-hollow-node-resources {
# It's bad that all component shares the same kubeconfig.
# TODO(https://github.com/kubernetes/kubernetes/issues/79883): Migrate all components to separate credentials.
"${KUBECTL}" create secret generic "kubeconfig" --type=Opaque --namespace="kubemark" \
--from-file=kubelet.kubeconfig="${LOCAL_KUBECONFIG}" \
--from-file=kubeproxy.kubeconfig="${LOCAL_KUBECONFIG}" \
--from-file=npd.kubeconfig="${LOCAL_KUBECONFIG}" \
--from-file=heapster.kubeconfig="${LOCAL_KUBECONFIG}" \
--from-file=cluster_autoscaler.kubeconfig="${LOCAL_KUBECONFIG}" \
--from-file=dns.kubeconfig="${LOCAL_KUBECONFIG}"
--from-file=kubelet.kubeconfig="${HOLLOWNODE_KUBECONFIG}" \
--from-file=kubeproxy.kubeconfig="${HOLLOWNODE_KUBECONFIG}" \
--from-file=npd.kubeconfig="${HOLLOWNODE_KUBECONFIG}" \
--from-file=heapster.kubeconfig="${HOLLOWNODE_KUBECONFIG}" \
--from-file=cluster_autoscaler.kubeconfig="${HOLLOWNODE_KUBECONFIG}" \
--from-file=dns.kubeconfig="${HOLLOWNODE_KUBECONFIG}"
# Create addon pods.
# Heapster.
@ -227,7 +228,13 @@ function start-hollow-nodes {
detect-project &> /dev/null
create-kubemark-master
MASTER_IP=$(grep server "$LOCAL_KUBECONFIG" | awk -F "/" '{print $3}')
if [ -f "${INTERNAL_KUBECONFIG}" ]; then
HOLLOWNODE_KUBECONFIG="${INTERNAL_KUBECONFIG}"
else
HOLLOWNODE_KUBECONFIG="${LOCAL_KUBECONFIG}"
fi
MASTER_IP=$(grep server "${HOLLOWNODE_KUBECONFIG}" | awk -F "/" '{print $3}')
start-hollow-nodes