copr-be: centralize aws/spot/hypervisor config in inventory

inventory/group_vars/copr_aws

@@ -38,4 +38,16 @@ builders:
         s390x: [0,0,0]
         aarch64: [0,2,2]
 
+    #x86_hypervisor_01:
+    #    x86_64: [2,1,1]
+
+    x86_hypervisor_02:
+        x86_64: [20,3,20]
+
+    x86_hypervisor_03:
+        x86_64: [20,3,20]
+
+    x86_hypervisor_04:
+        x86_64: [20,3,20]
+
 rpm_vendor_copr_name: Fedora Copr

inventory/group_vars/copr_dev_aws

@@ -39,4 +39,16 @@ builders:
         s390x: [1,0,0]
         aarch64: [5,2,2]
 
+    #x86_hypervisor_01:
+    #    x86_64: [2,1,1]
+
+    x86_hypervisor_02:
+        x86_64: [2,1,1]
+
+    x86_hypervisor_03:
+        x86_64: [2,1,1]
+
+    x86_hypervisor_04:
+        x86_64: [2,1,1]
+
 rpm_vendor_copr_name: Fedora Copr (devel)

roles/copr/backend/tasks/main.yml

@@ -162,6 +162,31 @@
 #  - library
 #  tags:
 #  - provision_config
+#
+- name: calculate the maximum resalloc workers per architecture
+  set_fact: "max_{{ item }}_workers={{ builders | community.general.json_query('*.'+item+'[0]') | sum() }}"
+  with_items:
+    - x86_64
+    - armhfp
+    - s390x
+    - aarch64
+  tags:
+  - provision_config
+
+- name: calculate max number of workers
+  set_fact: "max_workers={{ max_x86_64_workers|int + max_armhfp_workers|int + max_s390x_workers|int + max_aarch64_workers|int }}"
+  tags:
+  - provision_config
+
+- name: print max arch workers
+  debug: "var=max_{{ item }}_workers"
+  with_items:
+    - x86_64
+    - armhfp
+    - s390x
+    - aarch64
+  tags:
+  - provision_config
 
 - name: resalloc
   import_tasks: resalloc.yml

roles/copr/backend/templates/copr-be.conf.j2

@@ -38,13 +38,14 @@ sleeptime=20
 # This option basically controls the amount of RAM allocated for
 # processing builds on copr backend, and how many resalloc tickets can
 # be taken at the same time.
-builds_max_workers={{ builders.aws.x86_64[0] + builders.aws.aarch64[0] + builders.aws.armhfp[0] }}
+builds_max_workers={{ max_workers }}
 
 # Maximum number of concurrently running tasks per architecture.
 builds_max_workers_arch=
-    x86_64={{ builders.aws.x86_64[0] }},
-    aarch64={{ builders.aws.aarch64[0]}},
-    armhfp={{ builders.aws.armhfp[0] }}
+    x86_64={{ max_x86_64_workers }},
+    aarch64={{ max_aarch64_workers }},
+    armhfp={{ max_armhfp_workers }},
+    s390x={{ max_s390x_workers }}
 
 # Maximum number of concurrently running tasks per project owner.
 {% if env == 'production' %}

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

@@ -49,17 +49,12 @@ aws_aarch64_{% if spot %}spot{% else %}normal{% endif %}_{% if devel %}dev{% els
 {% endmacro %}
 
 # x86_64 hypervisors
-{% for hv in ["02", "03", "04"] %}
+{% for hv in ["01", "02", "03", "04"] %}
+{% if "x86_hypervisor_" + hv in builders %}
 copr_hv_x86_64_{{ hv }}_{% if devel %}dev{% else %}prod{% endif %}:
-{% if devel %}
-    max: 3
-    max_starting: 1
-    max_prealloc: 1
-{% else %}
-    max: 20
-    max_starting: 4
-    max_prealloc: 20
-{% endif %}
+    max: {{ builders["x86_hypervisor_" + hv]["x86_64"][0] }}
+    max_starting: {{ builders["x86_hypervisor_" + hv]["x86_64"][1] }}
+    max_prealloc: {{ builders["x86_hypervisor_" + hv]["x86_64"][2] }}
     tags:
     - copr_builder
     - arch_x86_64
@@ -85,6 +80,11 @@ copr_hv_x86_64_{{ hv }}_{% if devel %}dev{% else %}prod{% endif %}:
     reuse_opportunity_time: 180
     reuse_max_count: 8
     reuse_max_time: 1800
+{% else %}
+#
+# x86_hypervisor_{{ hv }} not configured in group_vars
+#
+{% endif %}
 {% endfor %}
 
 {% macro hw_aarch64(id, inst, max, max_starting, max_prealloc) %}