fix create_certs function

opensearch-1.x-node-installer.sh

@@ -35,7 +35,7 @@ install_if_not() {
         grep -c "ok installed")" == "1" ]; then
         echo " $1 is installed, skipping..."
     else
-        printf "\n---- Installing %s ----" "$1"
+        printf "\n---- Installing %s ----\n" "$1"
         apt-get -yq2 install "$1"
     fi
 }
@@ -61,11 +61,12 @@ fi
 dig_dns_ip() {
     dig -4 +short "$1"||awk -v RS='([0-9]+\\.){3}[0-9]+' 'RT{print RT}'
 }
-create_certs(){
+create_certs() {
     cp static/opensearch_certs.sh "$OPNSDIR"
     sed -i "s|__FTSDOMAIN__|$1|" "$OPNSDIR"/opensearch_certs.sh
-    cp "$OPNSDIR"
+    cd "$OPNSDIR"
     bash opensearch_certs.sh
+    rm -f "$OPNSDIR"/opensearch_certs.sh
 }
 countdown() {
 printwc "$Cyan" "$1"
@@ -330,4 +331,4 @@ docker-compose exec fts_os-node \
 
 docker logs $fts_node
 
-echo "You can now use: \"http://${INDEX_USER}:${OPNSREST}@localhost:9200\""
+printwc "$Green" "\n\nYou can now use: \"http://${INDEX_USER}:${OPNSREST}@localhost:9200\"\n"