Prepare for easy change to etcd3 storage backend
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		@@ -146,7 +146,7 @@ ADMISSION_CONTROL=NamespaceLifecycle,LimitRanger,ServiceAccount,PersistentVolume
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KUBE_UP_AUTOMATIC_CLEANUP=${KUBE_UP_AUTOMATIC_CLEANUP:-false}
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# Storage backend. 'etcd2' supported, 'etcd3' experimental.
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STORAGE_BACKEND=${STORAGE_BACKEND:-etcd2}
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STORAGE_BACKEND=${STORAGE_BACKEND:-}
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# Networking plugin specific settings.
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NETWORK_PROVIDER="${NETWORK_PROVIDER:-kubenet}" # none, opencontrail, kubenet
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@@ -178,7 +178,7 @@ KUBE_UP_AUTOMATIC_CLEANUP=${KUBE_UP_AUTOMATIC_CLEANUP:-false}
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TEST_CLUSTER="${TEST_CLUSTER:-true}"
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# Storage backend. 'etcd2' supported, 'etcd3' experimental.
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STORAGE_BACKEND=${STORAGE_BACKEND:-etcd2}
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STORAGE_BACKEND=${STORAGE_BACKEND:-}
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# OpenContrail networking plugin specific settings
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NETWORK_PROVIDER="${NETWORK_PROVIDER:-kubenet}" # none, opencontrail, kubenet
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@@ -443,7 +443,6 @@ dns_replicas: '$(echo "$DNS_REPLICAS" | sed -e "s/'/''/g")'
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dns_server: '$(echo "$DNS_SERVER_IP" | sed -e "s/'/''/g")'
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dns_domain: '$(echo "$DNS_DOMAIN" | sed -e "s/'/''/g")'
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admission_control: '$(echo "$ADMISSION_CONTROL" | sed -e "s/'/''/g")'
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storage_backend: '$(echo "$STORAGE_BACKEND" | sed -e "s/'/''/g")'
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network_provider: '$(echo "$NETWORK_PROVIDER" | sed -e "s/'/''/g")'
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prepull_e2e_images: '$(echo "$PREPULL_E2E_IMAGES" | sed -e "s/'/''/g")'
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hairpin_mode: '$(echo "$HAIRPIN_MODE" | sed -e "s/'/''/g")'
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@@ -460,6 +459,11 @@ kube_uid: '$(echo "${KUBE_UID}" | sed -e "s/'/''/g")'
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initial_etcd_cluster: '$(echo "${INITIAL_ETCD_CLUSTER:-}" | sed -e "s/'/''/g")'
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hostname: $(hostname -s)
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EOF
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    if [ -n "${STORAGE_BACKEND:-}" ]; then
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      cat <<EOF >>/srv/salt-overlay/pillar/cluster-params.sls
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storage_backend: '$(echo "$STORAGE_BACKEND" | sed -e "s/'/''/g")'
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EOF
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    fi
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    if [ -n "${ADMISSION_CONTROL:-}" ] && [ ${ADMISSION_CONTROL} == *"ImagePolicyWebhook"* ]; then
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      cat <<EOF >>/srv/salt-overlay/pillar/cluster-params.sls
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admission-control-config-file: /etc/admission_controller.config
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@@ -51,7 +51,7 @@ TERMINATED_POD_GC_THRESHOLD=${TERMINATED_POD_GC_THRESHOLD:-100}
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ETCD_IMAGE="${TEST_ETCD_IMAGE:-}"
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ETCD_VERSION="${TEST_ETCD_VERSION:-}"
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# Storage backend. 'etcd2' supported, 'etcd3' experimental.
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STORAGE_BACKEND=${STORAGE_BACKEND:-etcd2}
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STORAGE_BACKEND=${STORAGE_BACKEND:-}
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# Default Log level for all components in test clusters and variables to override it in specific components.
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TEST_CLUSTER_LOG_LEVEL="${TEST_CLUSTER_LOG_LEVEL:---v=2}"
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