K8SPS-110 fix orc restart (#911)

* K8SPS-110 fix orc restart

* Apply suggestions from code review

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

* fix restarts

---------

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: Natalia Marukovich <nataliamarukovich@Natalias-MacBook-Pro.local>
Co-authored-by: Viacheslav Sarzhan <slava.sarzhan@percona.com>

Author: 4 people

build/orc-entrypoint.sh

@@ -14,8 +14,9 @@ if [ -f ${OPERATOR_BINDIR}/orchestrator.conf.json ]; then
 fi
 
 sleep 10 # give time for SRV records to update
-
 NAMESPACE=$(</var/run/secrets/kubernetes.io/serviceaccount/namespace)
+
+tmp=$(mktemp)
 jq -M ". + {
         HTTPAdvertise:\"http://$HOSTNAME.$NAMESPACE:3000\",
         RaftAdvertise:\"$HOSTNAME.$NAMESPACE\",
@@ -27,7 +28,8 @@ jq -M ". + {
         MySQLTopologySSLCertFile:\"${ORC_CONF_PATH}/ssl/tls.crt\",
         MySQLTopologySSLCAFile:\"${ORC_CONF_PATH}/ssl/ca.crt\",
         RaftNodes:[]
-    }" "${ORC_CONF_FILE}" 1<>"${ORC_CONF_FILE}"
+    }" "$ORC_CONF_FILE" > "$tmp"
+    cat "$tmp" > "$ORC_CONF_FILE"
 
 if [ -f "${CUSTOM_CONF_FILE}" ]; then
 	jq -M -s ".[0] * .[1]" "${ORC_CONF_FILE}" "${CUSTOM_CONF_FILE}" 1<>"${ORC_CONF_FILE}"