diff --git a/SOURCES/CENTOS-use-centos-syspurposes.patch b/SOURCES/CENTOS-use-centos-syspurposes.patch
new file mode 100644
index 0000000..52d2e66
--- /dev/null
+++ b/SOURCES/CENTOS-use-centos-syspurposes.patch
@@ -0,0 +1,20 @@
+diff --git a/etc-conf/syspurpose/valid_fields.json b/etc-conf/syspurpose/valid_fields.json
+index 1ac7ea0e..305ec4b9 100644
+--- a/etc-conf/syspurpose/valid_fields.json
++++ b/etc-conf/syspurpose/valid_fields.json
+@@ -1,12 +1,10 @@
+ {
+     "role": [
+-      "Red Hat Enterprise Linux Server",
+-      "Red Hat Enterprise Linux Workstation",
+-      "Red Hat Enterprise Linux Compute Node"
++      "CentOS Linux Server",
++      "CentOS Linux Workstation",
++      "CentOS Linux Compute Node"
+     ],
+     "service_level_agreement": [
+-      "Premium",
+-      "Standard",
+       "Self-Support"
+     ],
+     "usage": [
diff --git a/SOURCES/subscription-manager-centos-remove-redhat.repo.patch b/SOURCES/subscription-manager-centos-remove-redhat.repo.patch
new file mode 100644
index 0000000..d474938
--- /dev/null
+++ b/SOURCES/subscription-manager-centos-remove-redhat.repo.patch
@@ -0,0 +1,11 @@
+diff -uNrp subscription-manager-1.23.8.orig/src/subscription_manager/repofile.py subscription-manager-1.23.8/src/subscription_manager/repofile.py
+--- subscription-manager-1.23.8.orig/src/subscription_manager/repofile.py	2019-03-06 08:15:21.000000000 -0600
++++ subscription-manager-1.23.8/src/subscription_manager/repofile.py	2019-07-10 12:03:11.266030982 -0500
+@@ -340,6 +340,7 @@ class RepoFileBase(object):
+         return self.path_exists(self.path)
+ 
+     def create(self):
++        return
+         if self.path_exists(self.path) or not self.manage_repos:
+             return
+         with open(self.path, 'w') as f:
diff --git a/SPECS/subscription-manager.spec b/SPECS/subscription-manager.spec
index 6cb273e..a2ecfd9 100644
--- a/SPECS/subscription-manager.spec
+++ b/SPECS/subscription-manager.spec
@@ -253,6 +253,9 @@ Source2: subscription-manager-rpmlintrc
 BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
 %endif
 
+Patch100: CENTOS-use-centos-syspurposes.patch
+Patch101: subscription-manager-centos-remove-redhat.repo.patch
+
 # The following macro examples are preceeded by '%' to stop macro expansion
 # in the comments. (See https://bugzilla.redhat.com/show_bug.cgi?id=1224660 for
 # why this is necessary)
@@ -558,9 +561,11 @@ Group: System Environment/Base
 Requires: rhsm-gtk = %{version}-%{release}
 Requires: initial-setup-gui >= 0.3.9.24-1
 Obsoletes: subscription-manager-firstboot < 1.15.3-1
+%if %{undefined centos}
 %if (0%{?rhel} >= 8)
 Supplements: initial-setup-gui
 %endif
+%endif
 
 %description -n subscription-manager-initial-setup-addon
 This package contains the initial-setup screens for subscription-manager.
@@ -713,6 +718,8 @@ subscription-manager-initial-setup-addon, and subscription-manager-cockpit-plugi
 
 %prep
 %setup -q
+%patch100 -p1
+%patch101 -p1
 
 %build
 make -f Makefile VERSION=%{version}-%{release} CFLAGS="%{optflags}" \
@@ -794,7 +801,9 @@ desktop-file-validate %{buildroot}/usr/share/applications/subscription-manager-c
 # fake out the redhat.repo file
 %if %{use_yum} || %{use_dnf}
     mkdir %{buildroot}%{_sysconfdir}/yum.repos.d
+    %if %{undefined centos}
     touch %{buildroot}%{_sysconfdir}/yum.repos.d/redhat.repo
+    %endif
 %endif
 
 # fake out the certificate directories
@@ -804,13 +813,19 @@ mkdir -p %{buildroot}%{_sysconfdir}/pki/entitlement
 %if %{use_container_plugin}
 # Setup cert directories for the container plugin:
 mkdir -p %{buildroot}%{_sysconfdir}/docker/certs.d/
+%if %{undefined centos}
 mkdir %{buildroot}%{_sysconfdir}/docker/certs.d/cdn.redhat.com
 install -m 644 %{_builddir}/%{buildsubdir}/etc-conf/redhat-entitlement-authority.pem %{buildroot}%{_sysconfdir}/docker/certs.d/cdn.redhat.com/redhat-entitlement-authority.crt
 %endif
+%endif
 
+%if %{undefined centos}
 mkdir -p %{buildroot}%{_sysconfdir}/etc/rhsm/ca
 install -m 644 %{_builddir}/%{buildsubdir}/etc-conf/redhat-entitlement-authority.pem %{buildroot}/%{_sysconfdir}/rhsm/ca/redhat-entitlement-authority.pem
 install -m 644 %{_builddir}/%{buildsubdir}/etc-conf/redhat-uep.pem %{buildroot}/%{_sysconfdir}/rhsm/ca/redhat-uep.pem
+%else
+rm %{buildroot}/%{_sysconfdir}/rhsm/ca/redhat-entitlement-authority.pem
+%endif
 
 %if %use_cockpit
     # install cockpit dist targz
@@ -836,6 +851,10 @@ find %{buildroot} -name \*.py* -exec touch -r %{SOURCE0} '{}' \;
     %endif
 %endif
 
+%if %{defined centos}
+sed -e '/^enabled=/ s/1/0/' -i %{buildroot}%{_sysconfdir}/dnf/plugins/subscription-manager.conf
+%endif
+
 # base/cli tools use the gettext domain 'rhsm', while the
 # gnome-help tools use domain 'subscription-manager'
 %files -f rhsm.lang
@@ -1212,10 +1231,12 @@ find %{buildroot} -name \*.py* -exec touch -r %{SOURCE0} '{}' \;
 %endif
 %{python_sitearch}/subscription_manager/plugin/container/*.py*
 
+%if %{undefined centos}
 # Copying Red Hat CA cert into each directory:
 %attr(755,root,root) %dir %{_sysconfdir}/docker/certs.d/cdn.redhat.com
 %attr(644,root,root) %{_sysconfdir}/docker/certs.d/cdn.redhat.com/redhat-entitlement-authority.crt
 %endif
+%endif
 
 %if %has_ostree
 %files -n subscription-manager-plugin-ostree
@@ -1270,8 +1291,10 @@ find %{buildroot} -name \*.py* -exec touch -r %{SOURCE0} '{}' \;
 %attr(755,root,root) %dir %{_sysconfdir}/rhsm
 %attr(755,root,root) %dir %{_sysconfdir}/rhsm/ca
 
+%if %{undefined centos}
 %attr(644,root,root) %{_sysconfdir}/rhsm/ca/redhat-entitlement-authority.pem
 %attr(644,root,root) %{_sysconfdir}/rhsm/ca/redhat-uep.pem
+%endif
 
 %if %use_cockpit
 %files -n subscription-manager-cockpit