[ubuntu] Add lerna (#2763)

* Add lerna to linux images

* Add a comment about netlify-cli

* remove Node.js tests from Tools.Tests.ps1

* fix tabs

* revert empty lines

* fix code style

images/linux/scripts/installers/nodejs.sh

@@ -4,14 +4,28 @@
 ##  Desc:  Installs Node.js LTS and related tooling (Gulp, Grunt)
 ################################################################################
 
+# Source the helpers for use with the script
+source $HELPER_SCRIPTS/install.sh
+
 # Install LTS Node.js and related build tools
 curl -sL https://raw.githubusercontent.com/mklement0/n-install/stable/bin/n-install | bash -s -- -ny -
 ~/n/bin/n lts
-npm install -g grunt gulp n parcel-bundler typescript newman vercel
-npm install -g --save-dev webpack webpack-cli
+# Install node modules
+node_modules=$(get_toolset_value '.node_modules[].name')
 
-# Install the Netlify CLI using --unsafe-perm=true options to avoid permission issues
-npm install -g --unsafe-perm=true netlify-cli
+# remove commenting out of this line as nmp migrated to v7
+# npm install -g $node_modules
+
+# TODO: workaround for Netlify CLI with npm6. Remove 19-28 and uncomment 17 if migration to npm7 compelted
+for module in $node_modules; do
+    echo "Installing node module $module"
+    if [ $module = "netlify-cli" ];then
+      # Install the Netlify CLI using --unsafe-perm=true options to avoid permission issues
+      npm install -g --unsafe-perm=true $module
+    else    
+      npm install -g $module
+    fi
+done
 
 echo "Creating the symlink for [now] command to vercel CLI"
 ln -s /usr/local/bin/vercel /usr/local/bin/now
@@ -26,4 +40,4 @@ apt-get update
 # Install yarn
 apt-get install -y --no-install-recommends yarn
 
-invoke_tests "Tools" "Node.js"
+invoke_tests "Node" "Node.js"