VTWO-14496 : allow running scripts on a subset of the nodes

README.md

@@ -16,10 +16,10 @@ vagrant up
 
 - setup a container runtime
 ```sh
-./scripts/run_script_on_all_nodes install_container_runtime
+./scripts/run_script_on_nodes install_container_runtime
 ```
 
 - download kubernetes
 ```sh
-./scripts/run_script_on_all_nodes download_node_binaries
+./scripts/run_script_on_nodes download_node_binaries
 ```

scripts/node_names

@@ -1,3 +1,3 @@
 #!/usr/bin/env bash
 
-vagrant status --machine-readable | grep ,state, | cut -d, -f2 | sort | uniq
+vagrant status --machine-readable | grep ,state, | cut -d, -f2 | sort | uniq | grep "$1"

scripts/run_script_on_nodes

@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 SCRIPTS_DIR=$(dirname $0)
 SCRIPT_NAME=$1
-NODE_NAMES=$($SCRIPTS_DIR/node_names)
+NODE_NAMES="$($SCRIPTS_DIR/node_names $2)"
 
 cat $SCRIPTS_DIR/$SCRIPT_NAME