Switch to c9-stream image in standalone libvirt env

Master no longer runs with c8-stream, this
env file is used in oooq centos ci gate job,
so switch to 9-stream image.

Also use image from cloud.centos.org as image
at images.rdoproject.org is quite old and have
issues. Add md5sum in image as md5sum for centos9
images shipped at different location.

Also update container image for c9-stream.

Change-Id: I34b8872f68025118d1d1ca727c78ec312e57ea61

config/environments/standalone_centos_libvirt.yml

@@ -2,17 +2,19 @@
 # instead of the default pre-built undercloud qcow2
 
 # baseos undercloud settings
-undercloud_image_url: https://images.rdoproject.org/CentOS-8-Stream-x86_64-GenericCloud.qcow2
+undercloud_image_url: https://cloud.centos.org/centos/9-stream/x86_64/images/CentOS-Stream-GenericCloud-9-20220509.0.x86_64.qcow2
 
 # Libvirt environments do not yet support whole-disk images, for example
 # https://bugs.launchpad.net/tripleo/+bug/1950383
 whole_disk_images: false
 
 # this must be named undercloud
+# Update md5sum whenever updating undercloud_image_url
 images:
     - name: undercloud
       url: "{{ undercloud_image_url }}"
       type: qcow2
+      md5sum: "15f11323b812a9a0b7c5fa08c97ff42d  CentOS-Stream-GenericCloud-9-20220509.0.x86_64.qcow2"
 
 inject_images: []
 
@@ -37,7 +39,7 @@ standalone_neutron_bridge_mappings: "datacentre:br-ctlplane"
 standalone_libvirt_type: qemu
 build_container_images: true
 # https://bugs.launchpad.net/tripleo/+bug/1902846
-containers_base_image: "ubi8:8.2"
+containers_base_image: "quay.io/centos/centos:stream9"
 
 # having connectivity with external world.
 tempest_public_net_physical_name: datacentre