# prompt, simulating the behavior when the user confirms interactively.
# All other automated use of this script should explicitly specify a version.
if [[ "${master_upgrade}" == "true" ]]; then
  if [[ -z "${ETCD_IMAGE:-}" && -z "${TEST_ETCD_IMAGE:-}" ]] || [[ -z "${ETCD_VERSION:-}" && -z "${TEST_ETCD_VERSION:-}" ]]; then
    echo
    echo "***WARNING***"

export KUBE_GCE_ENABLE_IP_ALIASES=true
export SECONDARY_RANGE_NAME="pods-default"
export STORAGE_BACKEND="etcd3"
export STORAGE_MEDIA_TYPE="application/vnd.kubernetes.protobuf"
export ETCD_IMAGE=3.5.14-0
export ETCD_VERSION=3.5.14

# Upgrade master with updated kube envs
"${KUBE_ROOT}/cluster/gce/upgrade.sh" -M -l

delete-k8s-node-routes

  # etcd
  - name: "etcd"
    version: 3.5.14
    refPaths:
    - path: cluster/gce/manifests/etcd.manifest
      match: etcd_docker_tag|etcd_version
    - path: cluster/gce/upgrade-aliases.sh
      match: ETCD_IMAGE|ETCD_VERSION
    - path: cmd/kubeadm/app/constants/constants.go
      match: DefaultEtcdVersion =
    - path: hack/lib/etcd.sh
      match: ETCD_VERSION=

NUM_ADDITIONAL_NODES=${NUM_ADDITIONAL_NODES:-}
ADDITIONAL_MACHINE_TYPE=${ADDITIONAL_MACHINE_TYPE:-}

# Set etcd image (e.g. registry.k8s.io/etcd) and version (e.g. v3.5.1-0) if you need
# non-default version.
export ETCD_IMAGE=${TEST_ETCD_IMAGE:-}
export ETCD_DOCKER_REPOSITORY=${TEST_ETCD_DOCKER_REPOSITORY:-}
export ETCD_VERSION=${TEST_ETCD_VERSION:-}

      cat >>"$file" <<EOF
KUBE_APISERVER_GODEBUG: $(yaml-quote "${KUBE_APISERVER_GODEBUG}")
EOF
    fi
    # ETCD_IMAGE (if set) allows to use a custom etcd image.
    if [ -n "${ETCD_IMAGE:-}" ]; then
      cat >>"$file" <<EOF
ETCD_IMAGE: $(yaml-quote "${ETCD_IMAGE}")
EOF
    fi
    # ETCD_DOCKER_REPOSITORY (if set) allows to use a custom etcd docker repository to pull the etcd image from.

  else
    sed -i -e "s@{{ *quota_bytes *}}@@g" "${temp_file}"
  fi
  sed -i -e "s@{{ *cluster_state *}}@$cluster_state@g" "${temp_file}"
  if [[ -n "${ETCD_IMAGE:-}" ]]; then
    sed -i -e "s@{{ *pillar\.get('etcd_docker_tag', '\(.*\)') *}}@${ETCD_IMAGE}@g" "${temp_file}"
  else
    sed -i -e "s@{{ *pillar\.get('etcd_docker_tag', '\(.*\)') *}}@\1@g" "${temp_file}"
  fi
  if [[ -n "${ETCD_DOCKER_REPOSITORY:-}" ]]; then