Fix older bash failing on unbound array variables

Older bash versions fail when trying to expand array variables
when the array is empty.

Signed-off-by: Mrunal Patel <mpatel@redhat.com>
This commit is contained in:
Mrunal Patel 2019-04-01 17:05:40 -07:00
parent dd96b15e5d
commit 8c9b169f17

View File

@ -638,7 +638,7 @@ function start_controller_manager {
--cluster-signing-cert-file="${CLUSTER_SIGNING_CERT_FILE}" \
--cluster-signing-key-file="${CLUSTER_SIGNING_KEY_FILE}" \
--enable-hostpath-provisioner="${ENABLE_HOSTPATH_PROVISIONER}" \
"${node_cidr_args[@]}" \
${node_cidr_args[@]+"${node_cidr_args[@]}"} \
--pvclaimbinder-sync-period="${CLAIM_BINDER_SYNC_PERIOD}" \
--feature-gates="${FEATURE_GATES}" \
"${cloud_config_arg[@]}" \
@ -770,13 +770,13 @@ function start_kubelet {
"--eviction-pressure-transition-period=${EVICTION_PRESSURE_TRANSITION_PERIOD}"
"--pod-manifest-path=${POD_MANIFEST_PATH}"
"--fail-swap-on=${FAIL_SWAP_ON}"
"${auth_args[@]}"
"${dns_args[@]}"
"${cni_conf_dir_args[@]}"
"${cni_bin_dir_args[@]}"
"${net_plugin_args[@]}"
"${container_runtime_endpoint_args[@]}"
"${image_service_endpoint_args[@]}"
${auth_args[@]+"${auth_args[@]}"}
${dns_args[@]+"${dns_args[@]}"}
${cni_conf_dir_args[@]+"${cni_conf_dir_args[@]}"}
${cni_bin_dir_args[@]+"${cni_bin_dir_args[@]}"}
${net_plugin_args[@]+"${net_plugin_args[@]}"}
${container_runtime_endpoint_args[@]+"${container_runtime_endpoint_args[@]}"}
${image_service_endpoint_args[@]+"${image_service_endpoint_args[@]}"}
"--port=${KUBELET_PORT}"
${KUBELET_FLAGS}
)