[Improvement] Run static fleet checks only if there are static nodes

cookbooks/aws-parallelcluster-computefleet/templates/compute_fleet_status/is_fleet_ready.erb

@@ -1,7 +1,16 @@
 #!/bin/bash
 
-sinfo_output=$(<%= node['cluster']['slurm']['install_dir'] %>/bin/sinfo -h -o '%N %t' | grep -v -E '(idle|alloc|mix|maint)$')
-while IFS= read -r line; do
-    nodelist=$(echo "$line" | awk '{print $1}')
-    <%= node['cluster']['slurm']['install_dir'] %>/bin/scontrol show hostnames "$nodelist" | { grep -E '^[a-z0-9\-]+\-st\-[a-z0-9\-]+\-[0-9]+.*' || true; }
-done <<< "$sinfo_output"
+
+
+cluster_static_node_count=$1
+if [[ -z "$cluster_static_node_count" ]]; then
+ cluster_static_node_count=1
+fi
+
+if [[ "$cluster_static_node_count" -ge "1" ]]; then
+  sinfo_output=$(<%= node['cluster']['slurm']['install_dir'] %>/bin/sinfo -h -o '%N %t' | grep -v -E '(idle|alloc|mix|maint)$')
+  while IFS= read -r line; do
+      nodelist=$(echo "$line" | awk '{print $1}')
+      <%= node['cluster']['slurm']['install_dir'] %>/bin/scontrol show hostnames "$nodelist" | { grep -E '^[a-z0-9\-]+\-st\-[a-z0-9\-]+\-[0-9]+.*' || true; }
+  done <<< "$sinfo_output"
+fi

cookbooks/aws-parallelcluster-slurm/libraries/helpers.rb

@@ -178,6 +178,21 @@ def wait_cluster_ready
   end
 end
 
+def get_static_node_count
+  require 'yaml'
+  cluster_config = YAML.safe_load(File.read(node['cluster']['cluster_config_path']))
+  total_min_count = 0
+  slurm_queues_section = cluster_config.dig("Scheduling", "SlurmQueues")
+  if slurm_queues_section
+    slurm_queues_section.each do |queue_config|
+      queue_config['ComputeResources'].each do |compute_resource_config|
+        total_min_count += compute_resource_config['MinCount'].to_i
+      end
+    end
+  end
+  total_min_count
+end
+
 def wait_static_fleet_running
   ruby_block "wait for static fleet capacity" do
     block do
@@ -203,11 +218,15 @@ def check_for_protected_mode(fleet_status_command) # rubocop:disable Lint/Nested
       fleet_status_command = Shellwords.escape(
         "/usr/local/bin/get-compute-fleet-status.sh"
       )
+
+      total_static_node_count = get_static_node_count
+      Chef::Log.info("Count of cluster static nodes is #{total_static_node_count}")
+
       # Example output for sinfo
       # sinfo -h -o '%N %t'
       # queue-0-dy-compute-resource-g4dn-0-[1-10],queue-1-dy-compute-resource-g4dn-1-[1-10] idle~
       # queue-2-dy-compute-resource-g4dn-2-[1-10],queue-3-dy-compute-resource-g4dn-3-[1-10] idle
-      until shell_out!("/bin/bash -c /usr/local/bin/is_fleet_ready.sh").stdout.strip.empty?
+      until shell_out!("/bin/bash /usr/local/bin/is_fleet_ready.sh #{total_static_node_count}").stdout.strip.empty?
         check_for_protected_mode(fleet_status_command)
 
         Chef::Log.info("Waiting for static fleet capacity provisioning")