base: Drop usage of Ceph Nautilus from RDO

This was temporary due to missing Ceph Nautilus
repo on CentOS mirrors (after removing CentOS Linux
content on EOL date).

Change-Id: I86aa697b8def34e0cfb11d2f5ad903dd54e975ef
(cherry picked from commit 7f38bce)

Author: mnasiadka

docker/base/Dockerfile.j2

@@ -223,13 +223,6 @@ RUN rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
 
 RUN {{ macros.install_packages(base_centos_yum_repo_packages | customizable("centos_yum_repo_packages"), chain=True, clean=False) }}
 
-{# TODO(mnasiadka): Remove me once Nautilus C8S lands on mirror.centos.org #}
-
-RUN sed -i \
-        -e "s|^\(mirrorlist.*\)|#\1|" \
-        -e "s|^#baseurl=http://mirror.centos.org.*|baseurl=https://trunk.rdoproject.org/centos8-master/deps/storage/nautilus/|" \
-        /etc/yum.repos.d/CentOS-Ceph-Nautilus.repo
-
 {%- for repo in base_centos_yum_repos_to_enable | customizable('centos_yum_repos_to_enable') %} && dnf config-manager --enable {{ repo }} {% endfor -%}
 
 {%- for repo in base_centos_yum_repos_to_disable | customizable('centos_yum_repos_to_disable') %} && dnf config-manager --disable {{ repo }} {% endfor -%}

tests/templates/template_overrides.j2

@@ -36,6 +36,12 @@ RUN sed -i \
 
 {% block base_centos_repo_overrides_post_yum -%}
 {%- endraw -%}
+{# TODO(mnasiadka): Drop this line once baseurl in centos-ceph-nautilus has $stream instead of #}
+{# pointing to centos8 #}
+    && sed -i \
+        -e "s|^\(mirrorlist.*\)|#\1|" \
+        -e "s|^#baseurl=http://mirror.centos.org/\$contentdir/\$releasever|baseurl=http://{{ nodepool_mirror_host }}/\$contentdir/\$stream|" \
+        /etc/yum.repos.d/CentOS-Ceph*.repo \
     && sed -i \
         -e "s|^\(mirrorlist.*\)|#\1|" \
         -e "s|^#baseurl=http://mirror.centos.org|baseurl=http://{{ nodepool_mirror_host }}|" \