diff --git a/.zuul.d/jobs.yaml b/.zuul.d/jobs.yaml
index 538e3800..08ddea20 100644
--- a/.zuul.d/jobs.yaml
+++ b/.zuul.d/jobs.yaml
@@ -196,13 +196,17 @@
     nodeset: ubuntu-bionic-arm64
     parent: dib-functests-arm64
 
+#
 # Build and boot functional tests
+#
+
 - job:
     name: dib-nodepool-functional-src-base
     description: |
-      Base job for DIB functional tests, which build and boot a node under
-      nodepool
-    parent: nodepool-functional-openstack-src-base
+      Base job for DIB functional tests, which build and boot a node
+      under nodepool, using source versions of dependencies such as
+      nodepool, dib, openstacksdk and glean.
+    parent: nodepool-functional-container-openstack-siblings-base
     vars:
       nodepool_debug: true
 
@@ -212,9 +216,6 @@
       Test building and booting a Centos 7 image with Nodepool and OpenStack
     parent: dib-nodepool-functional-src-base
     vars:
-      nodepool_extra_packages:
-        - rpm
-        - yum-utils
       nodepool_diskimage:
         base_element: centos-minimal
         release: '7'
@@ -226,9 +227,6 @@
       Test building and booting a Centos 8 image with Nodepool and OpenStack
     parent: dib-nodepool-functional-src-base
     vars:
-      nodepool_extra_packages:
-        - rpm
-        - yum-utils
       nodepool_diskimage:
         base_element: centos-minimal
         release: '8'
@@ -240,9 +238,6 @@
       Test building and booting a Fedora 30 image with Nodepool and OpenStack
     parent: dib-nodepool-functional-src-base
     vars:
-      nodepool_extra_packages:
-        - rpm
-        - yum-utils
       nodepool_diskimage:
         base_element: fedora-minimal
         release: '30'
@@ -253,9 +248,6 @@
       Test building and booting a Fedora 31 image with Nodepool and OpenStack
     parent: dib-nodepool-functional-src-base
     vars:
-      nodepool_extra_packages:
-        - rpm
-        - yum-utils
       nodepool_diskimage:
         base_element: fedora-minimal
         release: '31'
@@ -268,8 +260,6 @@
     parent: dib-nodepool-functional-src-base
     pre-run: playbooks/dib-nodepool/debootstrap.yaml
     vars:
-      nodepool_extra_packages:
-        - debootstrap
       nodepool_diskimage:
         base_element: ubuntu-minimal
         release: 'xenial'
@@ -307,8 +297,6 @@
     parent: dib-nodepool-functional-src-base
     pre-run: playbooks/dib-nodepool/debootstrap.yaml
     vars:
-      nodepool_extra_packages:
-        - debootstrap
       nodepool_diskimage:
         base_element: ubuntu-minimal
         release: 'bionic'
@@ -338,8 +326,6 @@
     parent: dib-nodepool-functional-src-base
     pre-run: playbooks/dib-nodepool/debootstrap.yaml
     vars:
-      nodepool_extra_packages:
-        - debootstrap
       nodepool_diskimage:
         base_element: debian-minimal
         release: 'stretch'
@@ -357,8 +343,6 @@
     parent: dib-nodepool-functional-src-base
     pre-run: playbooks/dib-nodepool/debootstrap.yaml
     vars:
-      nodepool_extra_packages:
-        - debootstrap
       nodepool_diskimage:
         base_element: debian-minimal
         release: 'buster'
@@ -376,9 +360,6 @@
     parent: dib-nodepool-functional-src-base
     nodeset: ubuntu-xenial  # Bionic lacks zypper
     vars:
-      nodepool_extra_packages:
-        - zypper
-        - gnupg2
       nodepool_diskimage:
         base_element: opensuse-minimal
         release: '15.1'
@@ -392,9 +373,6 @@
     parent: dib-nodepool-functional-src-base
     nodeset: ubuntu-xenial  # Bionic lacks zypper
     vars:
-      nodepool_extra_packages:
-        - zypper
-        - gnupg2
       nodepool_diskimage:
         base_element: opensuse-minimal
         release: 'tumbleweed'
diff --git a/.zuul.d/project.yaml b/.zuul.d/project.yaml
index 376efb17..ff6cd9de 100644
--- a/.zuul.d/project.yaml
+++ b/.zuul.d/project.yaml
@@ -10,11 +10,12 @@
     check:
       jobs:
         - openstack-tox-pylint
+        - opendev-buildset-registry
+        - nodepool-build-image-siblings
         - dib-nodepool-functional-openstack-centos-7-src
         - dib-nodepool-functional-openstack-centos-8-src
         - dib-nodepool-functional-openstack-fedora-31-src
         - dib-nodepool-functional-openstack-ubuntu-xenial-src
-        - dib-nodepool-functional-openstack-ubuntu-bionic
         - dib-nodepool-functional-openstack-ubuntu-bionic-src
         - dib-functests-centos7-python2
         - dib-functests-centos7-python2-image
@@ -45,11 +46,12 @@
     gate:
       jobs:
         - openstack-tox-pylint
+        - opendev-buildset-registry
+        - nodepool-build-image-siblings
         - dib-nodepool-functional-openstack-centos-7-src
         - dib-nodepool-functional-openstack-centos-8-src
         - dib-nodepool-functional-openstack-fedora-31-src
         - dib-nodepool-functional-openstack-ubuntu-xenial-src
-        - dib-nodepool-functional-openstack-ubuntu-bionic
         - dib-nodepool-functional-openstack-ubuntu-bionic-src
         - dib-functests-xenial-python3
         - dib-functests-centos7-python2