Add new container element - Rocky Linux

Introduce new container image for Rocky Linux, a downstream clone of Red
Hat Enterprise Linux.

Keep non-voting in Check for a while before adding to any gate checks

Signed-off-by: Neil Hanlon <neil@shrug.pw>
Change-Id: Ib383f60bc23b434b400f85c376840a000cafc697
Related-Bug: https://review.opendev.org/805800/

.zuul.d/jobs.yaml

@@ -132,6 +132,19 @@
         base_element: fedora-container
         release: '35'
 
+- job:
+    name: dib-nodepool-functional-openstack-rockylinux-8-containerfile-src
+    description: |
+      Test building and booting a Rocky Linux image from a
+      containerfile with Nodepool and OpenStack (using released
+      libraries)
+    parent: dib-nodepool-functional-src-base
+    vars:
+      nodepool_debug: true
+      nodepool_diskimage:
+        base_element: rocky-container
+        release: '8'
+
 - job:
     name: dib-nodepool-functional-openstack-ubuntu-xenial-src
     description: |

.zuul.d/project.yaml

@@ -19,6 +19,8 @@
         - dib-nodepool-functional-openstack-centos-8-stream-src
         - dib-nodepool-functional-openstack-centos-9-stream-src
         - dib-nodepool-functional-openstack-fedora-35-containerfile-src
+        - dib-nodepool-functional-openstack-rockylinux-8-containerfile-src:
+            voting: false
         - dib-nodepool-functional-openstack-ubuntu-xenial-src
         - dib-nodepool-functional-openstack-ubuntu-bionic-src
         - dib-nodepool-functional-openstack-ubuntu-focal-src

diskimage_builder/elements/pkg-map/bin/pkg-map

@@ -26,7 +26,8 @@ log = logging.getLogger()
 
 def os_family(distro):
     family = None
-    if distro in ['fedora', 'rhel', 'rhel7', 'centos', 'centos7', 'openeuler']:
+    if distro in ['fedora', 'rhel', 'rhel7', 'centos', 'centos7', 'openeuler',
+                    'rocky']:
         family = 'redhat'
     elif distro in ['debian', 'ubuntu']:
         family = 'debian'

diskimage_builder/elements/rocky-container/README.rst

@@ -0,0 +1,9 @@
+================
+rocky-container
+================
+
+Create a minimal image based on Rocky Linux container image
+
+This element sets the ``DISTRO_NAME`` var to 'rocky'. The release of
+rocky to be installed can be controlled through the ``DIB_RELEASE``
+variable, which defaults the latest supported release.

diskimage_builder/elements/rocky-container/containerfiles/8

@@ -0,0 +1,7 @@
+FROM docker.io/library/rockylinux:8
+
+RUN dnf install -y findutils util-linux sudo python3 NetworkManager
+
+RUN systemctl unmask console-getty.service dev-hugepages.mount \
+    getty.target sys-fs-fuse-connections.mount systemd-logind.service \
+    systemd-remount-fs.service

diskimage_builder/elements/rocky-container/element-deps

@@ -0,0 +1,8 @@
+cache-url
+containerfile
+package-installs
+redhat-common
+rpm-distro
+source-repositories
+vm
+yum

diskimage_builder/elements/rocky-container/environment.d/10-01-rocky-distro-name.bash

@@ -0,0 +1,4 @@
+export DISTRO_NAME=rocky
+export DIB_RELEASE=${DIB_RELEASE:-8} # always the most recent major
+export EFI_BOOT_DIR="EFI/rocky"
+export DIB_YUM_MINIMAL_CREATE_INTERFACES=0

diskimage_builder/elements/rocky-container/environment.d/11-yum-dnf.bash

@@ -0,0 +1 @@
+export YUM=dnf

diskimage_builder/elements/rocky-container/package-installs.yaml

@@ -0,0 +1,13 @@
+audit:
+dnf-plugins-core:
+dracut:
+dracut-config-generic:
+grubby:
+kernel:
+initscripts:
+man-pages:
+redhat-rpm-config:
+linux-firmware:
+    uninstall: true
+linux-firmware-whence:
+    uninstall: true

diskimage_builder/elements/rocky-container/test-elements/build-succeeds/README.rst

@@ -0,0 +1 @@
+Verify we can build a rocky-container image.

diskimage_builder/elements/rocky-container/test-elements/build-succeeds/element-deps

@@ -0,0 +1,2 @@
+openstack-ci-mirrors
+vm