Add TOTAL_MIN_COUNT of a cluster as comment

* Run static fleet checks if there are any static nodes

Author: Himani Anil Deshpande

cookbooks/aws-parallelcluster-slurm/files/default/head_node_slurm/slurm/templates/slurm_parallelcluster.conf

@@ -36,16 +36,20 @@ include {{ output_dir }}/pcluster/slurm_parallelcluster_{{ queue.Name }}_partiti
 {% endfor %}
 
 {% if ns.has_static %}
+{%- set ns.total_min_count = 0 %}
 SuspendExcNodes=
     {%- set ns.is_first = True %}
     {%- for queue in queues %}
         {% for compute_resource in queue.ComputeResources %}
             {% if compute_resource.MinCount > 0 %}
 {{- "," if not ns.is_first else "" -}}
 {{ queue.Name }}-st-{{ compute_resource.Name }}-[1-{{ compute_resource.MinCount }}]
+                {%- set ns.total_min_count = ns.total_min_count +  compute_resource.MinCount %}
                 {%- set ns.is_first = False %}
             {%- endif %}
         {% endfor %}
     {% endfor %}
 
 {% endif %}
+
+#TOTAL_MIN_COUNT={{ ns.total_min_count }}

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

@@ -178,6 +178,11 @@ def wait_cluster_ready
   end
 end
 
+def get_static_node_count
+  cmd = Mixlib::ShellOut.new("cat #{node['cluster']['slurm']['install_dir']}/etc/slurm_parallelcluster.conf | grep -o '#TOTAL_MIN_COUNT=\([0-9]*\)' | cut -d'=' -f2")
+  cmd.run_command.stdout.strip
+end
+
 def wait_static_fleet_running
   ruby_block "wait for static fleet capacity" do
     block do
@@ -203,6 +208,7 @@ 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"
       )
+
       # 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~
@@ -215,6 +221,7 @@ def check_for_protected_mode(fleet_status_command) # rubocop:disable Lint/Nested
       end
       Chef::Log.info("Static fleet capacity is ready")
     end
+    only_if { get_static_node_count.to_i > 0 }
   end
 end