diff --git a/.zuul.yaml b/.zuul.yaml
index cf6cbd14..18730409 100644
--- a/.zuul.yaml
+++ b/.zuul.yaml
@@ -34,8 +34,9 @@
         pass-to-parent: true
 
 - job:
-    name: ansible-collection-commons-molecule-certificates
+    name: abstract-ansible-collection-commons-molecule
     parent: ansible-molecule
+    abstract: true
     nodeset:
       nodes:
         - name: ubuntu-jammy-large
@@ -43,85 +44,58 @@
         - name: centos-9-stream
           label: centos-9-stream
     vars:
-      ansible_role: certificates
       ansible_molecule_ansible_version: "9.3.0"
     files:
-      - '^roles\/certificates\/.*$'
-      - '^molecule\/delegated\/tests\/certificates.*$'
+      - '^.zuul.yaml$'
       - '^molecule\/delegated\/[^\/]*yml$'
       - '^molecule\/requirements\.txt$'
 
+- job:
+    name: ansible-collection-commons-molecule-certificates
+    parent: abstract-ansible-collection-commons-molecule
+    vars:
+      ansible_role: certificates
+    files:
+      - '^roles\/certificates\/.*$'
+      - '^molecule\/delegated\/tests\/certificates.*$'
+
 - job:
     name: ansible-collection-commons-molecule-cleanup
-    parent: ansible-molecule
-    nodeset:
-      nodes:
-        - name: ubuntu-jammy-large
-          label: ubuntu-jammy-large
-        - name: centos-9-stream
-          label: centos-9-stream
+    parent: abstract-ansible-collection-commons-molecule
     vars:
       ansible_role: cleanup
-      ansible_molecule_ansible_version: "9.3.0"
     files:
       - '^roles\/cleanup\/.*$'
       - '^molecule\/delegated\/tests\/cleanup.*$'
-      - '^molecule\/delegated\/[^\/]*yml$'
-      - '^molecule\/requirements\.txt$'
 
 - job:
     name: ansible-collection-commons-molecule-configfs
-    parent: ansible-molecule
-    nodeset:
-      nodes:
-        - name: ubuntu-jammy-large
-          label: ubuntu-jammy-large
-        - name: centos-9-stream
-          label: centos-9-stream
+    parent: abstract-ansible-collection-commons-molecule
     vars:
       ansible_role: configfs
-      ansible_molecule_ansible_version: "9.3.0"
     files:
       - '^roles\/configfs\/.*$'
       - '^molecule\/delegated\/tests\/configfs.*$'
-      - '^molecule\/delegated\/[^\/]*yml$'
-      - '^molecule\/requirements\.txt$'
 
 - job:
     name: ansible-collection-commons-molecule-configuration
-    parent: ansible-molecule
-    nodeset:
-      nodes:
-        - name: ubuntu-jammy-large
-          label: ubuntu-jammy-large
-        - name: centos-9-stream
-          label: centos-9-stream
+    parent: abstract-ansible-collection-commons-molecule
     vars:
       ansible_role: configuration
-      ansible_molecule_ansible_version: "9.3.0"
     files:
-      - '^roles\/configuraion\/.*$'
+      - '^roles\/configuration\/.*$'
       - '^molecule\/delegated\/tests\/configuration.*$'
-      - '^molecule\/delegated\/[^\/]*yml$'
-      - '^molecule\/requirements\.txt$'
 
 - job:
     name: ansible-collection-commons-molecule-docker_compose
-    parent: ansible-molecule
-    nodeset:
-      nodes:
-        - name: ubuntu-jammy-large
-          label: ubuntu-jammy-large
-        - name: centos-9-stream
-          label: centos-9-stream
+    parent: abstract-ansible-collection-commons-molecule
     vars:
       ansible_role: docker_compose
-      ansible_molecule_ansible_version: "9.3.0"
     files:
       - '^roles\/docker_compose\/.*$'
       - '^molecule\/delegated\/tests\/docker_compose.*$'
-      - '^molecule\/delegated\/[^\/]*yml$'
-      - '^molecule\/requirements\.txt$'
+
+# TODO: use abstract job & enable CentOS 9 Stream
 
 - job:
     name: ansible-collection-commons-molecule-docker_login
@@ -130,7 +104,6 @@
       nodes:
         - name: ubuntu-jammy-large
           label: ubuntu-jammy-large
-# not implemented yet
 #        - name: centos-9-stream
 #          label: centos-9-stream
     vars:
@@ -144,327 +117,167 @@
 
 - job:
     name: ansible-collection-commons-molecule-facts
-    parent: ansible-molecule
-    nodeset:
-      nodes:
-        - name: ubuntu-jammy-large
-          label: ubuntu-jammy-large
-        - name: centos-9-stream
-          label: centos-9-stream
+    parent: abstract-ansible-collection-commons-molecule
     vars:
       ansible_role: facts
-      ansible_molecule_ansible_version: "9.3.0"
     files:
       - '^roles\/facts\/.*$'
       - '^molecule\/delegated\/tests\/facts.*$'
-      - '^molecule\/delegated\/[^\/]*yml$'
-      - '^molecule\/requirements\.txt$'
 
 - job:
     name: ansible-collection-commons-molecule-firewall
-    parent: ansible-molecule
-    nodeset:
-      nodes:
-        - name: ubuntu-jammy-large
-          label: ubuntu-jammy-large
-        - name: centos-9-stream
-          label: centos-9-stream
+    parent: abstract-ansible-collection-commons-molecule
     vars:
       ansible_role: firewall
-      ansible_molecule_ansible_version: "9.3.0"
     files:
       - '^roles\/firewall\/.*$'
       - '^molecule\/delegated\/tests\/firewall.*$'
-      - '^molecule\/delegated\/[^\/]*yml$'
-      - '^molecule\/requirements\.txt$'
 
 - job:
     name: ansible-collection-commons-molecule-hostname
-    parent: ansible-molecule
-    nodeset:
-      nodes:
-        - name: ubuntu-jammy-large
-          label: ubuntu-jammy-large
-        - name: centos-9-stream
-          label: centos-9-stream
+    parent: abstract-ansible-collection-commons-molecule
     vars:
       ansible_role: hostname
-      ansible_molecule_ansible_version: "9.3.0"
     files:
       - '^roles\/hostname\/.*$'
       - '^molecule\/delegated\/tests\/hostname.*$'
-      - '^molecule\/delegated\/[^\/]*yml$'
-      - '^molecule\/requirements\.txt$'
 
 - job:
     name: ansible-collection-commons-molecule-hosts
-    parent: ansible-molecule
-    nodeset:
-      nodes:
-        - name: ubuntu-jammy-large
-          label: ubuntu-jammy-large
-        - name: centos-9-stream
-          label: centos-9-stream
+    parent: abstract-ansible-collection-commons-molecule
     vars:
       ansible_role: hosts
-      ansible_molecule_ansible_version: "9.3.0"
     files:
       - '^roles\/hosts\/.*$'
       - '^molecule\/delegated\/tests\/hosts.*$'
-      - '^molecule\/delegated\/[^\/]*yml$'
-      - '^molecule\/requirements\.txt$'
 
 - job:
     name: ansible-collection-commons-molecule-ipmitool
-    parent: ansible-molecule
-    nodeset:
-      nodes:
-        - name: ubuntu-jammy-large
-          label: ubuntu-jammy-large
-        - name: centos-9-stream
-          label: centos-9-stream
+    parent: abstract-ansible-collection-commons-molecule
     vars:
       ansible_role: ipmitool
-      ansible_molecule_ansible_version: "9.3.0"
     files:
       - '^roles\/ipimtool\/.*$'
       - '^molecule\/delegated\/tests\/ipmitool.*$'
-      - '^molecule\/delegated\/[^\/]*yml$'
-      - '^molecule\/requirements\.txt$'
 
 - job:
     name: ansible-collection-commons-molecule-kernel_modules
-    parent: ansible-molecule
-    nodeset:
-      nodes:
-        - name: ubuntu-jammy-large
-          label: ubuntu-jammy-large
-        - name: centos-9-stream
-          label: centos-9-stream
+    parent: abstract-ansible-collection-commons-molecule
     vars:
       ansible_role: kernel_modules
-      ansible_molecule_ansible_version: "9.3.0"
     files:
       - '^roles\/kernel_modules\/.*$'
       - '^molecule\/delegated\/tests\/kernel_modules.*$'
-      - '^molecule\/delegated\/[^\/]*yml$'
-      - '^molecule\/requirements\.txt$'
 
 - job:
     name: ansible-collection-commons-molecule-known_hosts
-    parent: ansible-molecule
-    nodeset:
-      nodes:
-        - name: ubuntu-jammy-large
-          label: ubuntu-jammy-large
-        - name: centos-9-stream
-          label: centos-9-stream
+    parent: abstract-ansible-collection-commons-molecule
     vars:
       ansible_role: known_hosts
-      ansible_molecule_ansible_version: "9.3.0"
     files:
       - '^roles\/known_hosts\/.*$'
       - '^molecule\/delegated\/tests\/known_hosts.*$'
-      - '^molecule\/delegated\/[^\/]*yml$'
-      - '^molecule\/requirements\.txt$'
 
 - job:
     name: ansible-collection-commons-molecule-kompose
-    parent: ansible-molecule
-    nodeset:
-      nodes:
-        - name: ubuntu-jammy-large
-          label: ubuntu-jammy-large
-        - name: centos-9-stream
-          label: centos-9-stream
+    parent: abstract-ansible-collection-commons-molecule
     vars:
       ansible_role: kompose
-      ansible_molecule_ansible_version: "9.3.0"
     files:
       - '^roles\/kompose\/.*$'
       - '^molecule\/delegated\/tests\/kompose.*$'
-      - '^molecule\/delegated\/[^\/]*yml$'
-      - '^molecule\/requirements\.txt$'
 
 - job:
     name: ansible-collection-commons-molecule-kubectl
-    parent: ansible-molecule
-    nodeset:
-      nodes:
-        - name: ubuntu-jammy-large
-          label: ubuntu-jammy-large
-        - name: centos-9-stream
-          label: centos-9-stream
+    parent: abstract-ansible-collection-commons-molecule
     vars:
       ansible_role: kubectl
-      ansible_molecule_ansible_version: "9.3.0"
     files:
       - '^roles\/kubectl\/.*$'
       - '^molecule\/delegated\/tests\/kubectl.*$'
-      - '^molecule\/delegated\/[^\/]*yml$'
-      - '^molecule\/requirements\.txt$'
 
 - job:
     name: ansible-collection-commons-molecule-limits
-    parent: ansible-molecule
-    nodeset:
-      nodes:
-        - name: ubuntu-jammy-large
-          label: ubuntu-jammy-large
-        - name: centos-9-stream
-          label: centos-9-stream
+    parent: abstract-ansible-collection-commons-molecule
     vars:
       ansible_role: limits
-      ansible_molecule_ansible_version: "9.3.0"
     files:
       - '^roles\/limits\/.*$'
       - '^molecule\/delegated\/tests\/limits.*$'
-      - '^molecule\/delegated\/[^\/]*yml$'
-      - '^molecule\/requirements\.txt$'
 
 - job:
     name: ansible-collection-commons-molecule-lynis
-    parent: ansible-molecule
-    nodeset:
-      nodes:
-        - name: ubuntu-jammy-large
-          label: ubuntu-jammy-large
-        - name: centos-9-stream
-          label: centos-9-stream
+    parent: abstract-ansible-collection-commons-molecule
     vars:
       ansible_role: lynis
-      ansible_molecule_ansible_version: "9.3.0"
     files:
       - '^roles\/lynis\/.*$'
       - '^molecule\/delegated\/tests\/lynis.*$'
-      - '^molecule\/delegated\/[^\/]*yml$'
-      - '^molecule\/requirements\.txt$'
 
 - job:
     name: ansible-collection-commons-molecule-microcode
-    parent: ansible-molecule
-    nodeset:
-      nodes:
-        - name: ubuntu-jammy-large
-          label: ubuntu-jammy-large
-        - name: centos-9-stream
-          label: centos-9-stream
+    parent: abstract-ansible-collection-commons-molecule
     vars:
       ansible_role: microcode
-      ansible_molecule_ansible_version: "9.3.0"
     files:
       - '^roles\/microcode\/.*$'
       - '^molecule\/delegated\/tests\/microcode.*$'
-      - '^molecule\/delegated\/[^\/]*yml$'
-      - '^molecule\/requirements\.txt$'
 
 - job:
     name: ansible-collection-commons-molecule-motd
-    parent: ansible-molecule
-    nodeset:
-      nodes:
-        - name: ubuntu-jammy-large
-          label: ubuntu-jammy-large
-        - name: centos-9-stream
-          label: centos-9-stream
+    parent: abstract-ansible-collection-commons-molecule
     vars:
       ansible_role: motd
-      ansible_molecule_ansible_version: "9.3.0"
     files:
       - '^roles\/motd\/.*$'
       - '^molecule\/delegated\/tests\/motd.*$'
-      - '^molecule\/delegated\/[^\/]*yml$'
-      - '^molecule\/requirements\.txt$'
 
 - job:
     name: ansible-collection-commons-molecule-operator
-    parent: ansible-molecule
-    nodeset:
-      nodes:
-        - name: ubuntu-jammy-large
-          label: ubuntu-jammy-large
-        - name: centos-9-stream
-          label: centos-9-stream
+    parent: abstract-ansible-collection-commons-molecule
     vars:
       ansible_role: operator
-      ansible_molecule_ansible_version: "9.3.0"
     files:
       - '^roles\/operator\/.*$'
       - '^molecule\/delegated\/tests\/operator.*$'
-      - '^molecule\/delegated\/[^\/]*yml$'
-      - '^molecule\/requirements\.txt$'
 
 - job:
     name: ansible-collection-commons-molecule-packages
-    parent: ansible-molecule
-    nodeset:
-      nodes:
-        - name: ubuntu-jammy-large
-          label: ubuntu-jammy-large
-        - name: centos-9-stream
-          label: centos-9-stream
+    parent: abstract-ansible-collection-commons-molecule
     vars:
       ansible_role: packages
-      ansible_molecule_ansible_version: "9.3.0"
     files:
       - '^roles\/packages\/.*$'
       - '^molecule\/delegated\/tests\/packages.*$'
-      - '^molecule\/delegated\/[^\/]*yml$'
-      - '^molecule\/requirements\.txt$'
 
 - job:
     name: ansible-collection-commons-molecule-podman
-    parent: ansible-molecule
-    nodeset:
-      nodes:
-        - name: ubuntu-jammy-large
-          label: ubuntu-jammy-large
-        - name: centos-9-stream
-          label: centos-9-stream
+    parent: abstract-ansible-collection-commons-molecule
     vars:
       ansible_role: podman
-      ansible_molecule_ansible_version: "9.3.0"
     files:
       - '^roles\/podman\/.*$'
       - '^molecule\/delegated\/tests\/podman.*$'
-      - '^molecule\/delegated\/[^\/]*yml$'
-      - '^molecule\/requirements\.txt$'
 
 - job:
     name: ansible-collection-commons-molecule-proxy
-    parent: ansible-molecule
-    nodeset:
-      nodes:
-        - name: ubuntu-jammy-large
-          label: ubuntu-jammy-large
-        - name: centos-9-stream
-          label: centos-9-stream
+    parent: abstract-ansible-collection-commons-molecule
     vars:
       ansible_role: proxy
-      ansible_molecule_ansible_version: "9.3.0"
     files:
       - '^roles\/proxy\/.*$'
       - '^molecule\/delegated\/tests\/proxy.*$'
-      - '^molecule\/delegated\/[^\/]*yml$'
-      - '^molecule\/requirements\.txt$'
 
 - job:
     name: ansible-collection-commons-molecule-repository
-    parent: ansible-molecule
-    nodeset:
-      nodes:
-        - name: ubuntu-jammy-large
-          label: ubuntu-jammy-large
-        - name: centos-9-stream
-          label: centos-9-stream
+    parent: abstract-ansible-collection-commons-molecule
     vars:
       ansible_role: repository
-      ansible_molecule_ansible_version: "9.3.0"
     files:
       - '^roles\/repository\/.*$'
       - '^molecule\/delegated\/tests\/repository.*$'
-      - '^molecule\/delegated\/[^\/]*yml$'
-      - '^molecule\/requirements\.txt$'
+
+# TODO: use abstract job & enable CentOS 9 Stream
 
 - job:
     name: ansible-collection-commons-molecule-resolvconf
@@ -473,7 +286,6 @@
       nodes:
         - name: ubuntu-jammy-large
           label: ubuntu-jammy-large
-# not implemented yet
 #        - name: centos-9-stream
 #          label: centos-9-stream
     vars:
@@ -487,165 +299,84 @@
 
 - job:
     name: ansible-collection-commons-molecule-runc
-    parent: ansible-molecule
-    nodeset:
-      nodes:
-        - name: ubuntu-jammy-large
-          label: ubuntu-jammy-large
-        - name: centos-9-stream
-          label: centos-9-stream
+    parent: abstract-ansible-collection-commons-molecule
     vars:
       ansible_role: runc
-      ansible_molecule_ansible_version: "9.3.0"
     files:
       - '^roles\/runc\/.*$'
       - '^molecule\/delegated\/tests\/runc.*$'
-      - '^molecule\/delegated\/[^\/]*yml$'
-      - '^molecule\/requirements\.txt$'
 
 - job:
     name: ansible-collection-commons-molecule-services
-    parent: ansible-molecule
-    nodeset:
-      nodes:
-        - name: ubuntu-jammy-large
-          label: ubuntu-jammy-large
-        - name: centos-9-stream
-          label: centos-9-stream
+    parent: abstract-ansible-collection-commons-molecule
     vars:
       ansible_role: services
-      ansible_molecule_ansible_version: "9.3.0"
     files:
       - '^roles\/services\/.*$'
       - '^molecule\/delegated\/tests\/services.*$'
-      - '^molecule\/delegated\/[^\/]*yml$'
-      - '^molecule\/requirements\.txt$'
 
 - job:
     name: ansible-collection-commons-molecule-sosreport
-    parent: ansible-molecule
-    nodeset:
-      nodes:
-        - name: ubuntu-jammy-large
-          label: ubuntu-jammy-large
-        - name: centos-9-stream
-          label: centos-9-stream
+    parent: abstract-ansible-collection-commons-molecule
     vars:
       ansible_role: sosreport
-      ansible_molecule_ansible_version: "9.3.0"
     files:
       - '^roles\/sosreport\/.*$'
       - '^molecule\/delegated\/tests\/sosreport.*$'
-      - '^molecule\/delegated\/[^\/]*yml$'
-      - '^molecule\/requirements\.txt$'
 
 - job:
     name: ansible-collection-commons-molecule-sshconfig
-    parent: ansible-molecule
-    nodeset:
-      nodes:
-        - name: ubuntu-jammy-large
-          label: ubuntu-jammy-large
-        - name: centos-9-stream
-          label: centos-9-stream
+    parent: abstract-ansible-collection-commons-molecule
     vars:
       ansible_role: sshconfig
-      ansible_molecule_ansible_version: "9.3.0"
     files:
       - '^roles\/sshconfig\/.*$'
       - '^molecule\/delegated\/tests\/sshconfig.*$'
-      - '^molecule\/delegated\/[^\/]*yml$'
-      - '^molecule\/requirements\.txt$'
 
 - job:
     name: ansible-collection-commons-molecule-state
-    parent: ansible-molecule
-    nodeset:
-      nodes:
-        - name: ubuntu-jammy-large
-          label: ubuntu-jammy-large
-        - name: centos-9-stream
-          label: centos-9-stream
+    parent: abstract-ansible-collection-commons-molecule
     vars:
       ansible_role: state
-      ansible_molecule_ansible_version: "9.3.0"
     files:
       - '^roles\/state\/.*$'
       - '^molecule\/delegated\/tests\/state.*$'
-      - '^molecule\/delegated\/[^\/]*yml$'
-      - '^molecule\/requirements\.txt$'
 
 - job:
     name: ansible-collection-commons-molecule-sysctl
-    parent: ansible-molecule
-    nodeset:
-      nodes:
-        - name: ubuntu-jammy-large
-          label: ubuntu-jammy-large
-        - name: centos-9-stream
-          label: centos-9-stream
+    parent: abstract-ansible-collection-commons-molecule
     vars:
       ansible_role: sysctl
-      ansible_molecule_ansible_version: "9.3.0"
     files:
       - '^roles\/sysctl\/.*$'
       - '^molecule\/delegated\/tests\/sysctl.*$'
-      - '^molecule\/delegated\/[^\/]*yml$'
-      - '^molecule\/requirements\.txt$'
 
 - job:
     name: ansible-collection-commons-molecule-systohc
-    parent: ansible-molecule
-    nodeset:
-      nodes:
-        - name: ubuntu-jammy-large
-          label: ubuntu-jammy-large
-        - name: centos-9-stream
-          label: centos-9-stream
+    parent: abstract-ansible-collection-commons-molecule
     vars:
       ansible_role: systohc
-      ansible_molecule_ansible_version: "9.3.0"
     files:
       - '^roles\/systohc\/.*$'
       - '^molecule\/delegated\/tests\/systohc.*$'
-      - '^molecule\/delegated\/[^\/]*yml$'
-      - '^molecule\/requirements\.txt$'
 
 - job:
     name: ansible-collection-commons-molecule-timezone
-    parent: ansible-molecule
-    nodeset:
-      nodes:
-        - name: ubuntu-jammy-large
-          label: ubuntu-jammy-large
-        - name: centos-9-stream
-          label: centos-9-stream
+    parent: abstract-ansible-collection-commons-molecule
     vars:
       ansible_role: timezone
-      ansible_molecule_ansible_version: "9.3.0"
     files:
       - '^roles\/timezone\/.*$'
       - '^molecule\/delegated\/tests\/timezone.*$'
-      - '^molecule\/delegated\/[^\/]*yml$'
-      - '^molecule\/requirements\.txt$'
 
 - job:
     name: ansible-collection-commons-molecule-trivy
-    parent: ansible-molecule
-    nodeset:
-      nodes:
-        - name: ubuntu-jammy-large
-          label: ubuntu-jammy-large
-        - name: centos-9-stream
-          label: centos-9-stream
+    parent: abstract-ansible-collection-commons-molecule
     vars:
       ansible_role: trivy
-      ansible_molecule_ansible_version: "9.3.0"
     files:
       - '^roles\/trivy\/.*$'
       - '^molecule\/delegated\/tests\/trivy.*$'
-      - '^molecule\/delegated\/[^\/]*yml$'
-      - '^molecule\/requirements\.txt$'
 
 - project:
     merge-mode: squash-merge