copr-be: start at most 2 powerful s390x instances

roles/copr/backend/templates/resalloc/ibm-cloud-vm.j2

@@ -14,7 +14,14 @@ case $RESALLOC_NAME in
         vpc_id=r014-e90f14b0-a9c0-4c0b-bc81-207904b2d19e
         security_group_id=r014-941706bd-062c-4d4c-9512-9a31b8f257d7
         ssh_key_id=r014-fc1c1b90-5a7f-4cc6-a6d4-b273bd19be99
-        instance_type=mz2-2x16
+        case $RESALLOC_NAME in
+        *powerful*)
+            instance_type=bz2-16x64
+            ;;
+        *)
+            instance_type=mz2-2x16
+            ;;
+        esac
         image_uuid="{{ copr_builder_images.ibm_cloud.s390x.us_east }}"
         subnets_ids="us-east-1:0757-df8209fd-e4e4-4659-bcca-b60c9eddfb35 us-east-2:0767-4cb7e11d-14db-48a8-9d1d-c59679112cd5 us-east-3:0777-bc697f15-4f13-4843-b338-d8950e3d23c0"
         zone=us-east

roles/copr/backend/templates/resalloc/pools.yaml

@@ -210,23 +210,32 @@ copr_ibm_cloud_s390x_tokyo_{% if devel %}dev{% else %}prod{% endif %}:
 
 
 # Z Cloud instances in Washington
-copr_ic_s390x_us_east_{% if devel %}dev{% else %}prod{% endif %}:
+{% for t in ['', 'powerful'] %}
+copr_ic_s390x_{{ t + '_' if t or '' }}us_east_{% if devel %}dev{% else %}prod{% endif %}:
+{% if not t %}
   max: {{ builders.ibm_cloud_us_east.s390x[0] }}
 {% if not devel %}
   max_prealloc: {{ builders.ibm_cloud_us_east.s390x[1] }}
 {% endif %}
   max_starting: {{ builders.ibm_cloud_us_east.s390x[2] }}
+{% else %}
+  max: 2
+  max_starting: 2
+{% endif %}
   tags:
     - copr_builder
     - name: arch_noarch
       priority: -30
     - ibm_cloud
     - us_east
-{% if devel %}
+{% if devel or t == 'powerful' %}
   tags_on_demand:
 {% endif %}
     - arch_s390x
     - arch_s390x_native
+{% if t == 'powerful' %}
+    - on_demand_powerful
+{% endif %}
   cmd_new: '/var/lib/resallocserver/resalloc_provision/ibm-cloud-vm create "$RESALLOC_NAME"'
   cmd_delete: "/var/lib/resallocserver/resalloc_provision/vm-delete"
   cmd_livecheck: "resalloc-check-vm-ip"
@@ -237,6 +246,7 @@ copr_ic_s390x_us_east_{% if devel %}dev{% else %}prod{% endif %}:
   reuse_max_count: 8
   reuse_max_time: 1800
 
+{% endfor %}
 
 # Power9 VMs in openpower-controller.osuosl.org
 copr_osuosl_p09_{% if devel %}dev{% else %}prod{% endif %}: