diff --git a/centos/SPECS/polemarch.spec b/centos/SPECS/polemarch.spec
new file mode 100644
index 0000000..012ad15
--- /dev/null
+++ b/centos/SPECS/polemarch.spec
@@ -0,0 +1,121 @@
+# Attention: Before you can build this package, you must install venvctrl package through pip:
+# pip install venvctrl
+
+# Globals
+%global __os_install_post %{nil}
+# prevents the building of /usr/lib/.build-id directories and files:
+# this only happens, if you are using python virtualenv
+%global _build_id_links none
+# don't check for rpath:
+%global __arch_install_post   /usr/lib/rpm/check-buildroot
+
+# Macros
+%define pyversion 3.8
+%define name polemarch
+%define shortname polemarch
+%define namebase polemarch
+%define user polemarch
+%define datad poledata
+%define version 2.0.0b1
+%define release 1
+%define __prelink_undo_cmd %{nil}
+%define _binaries_in_noarch_packages_terminate_build   0
+%define unmangled_version %{version}
+
+Name: %{name}
+Version: %{version}
+Release: %{release}%{?dist}
+Summary: Infrastructure Heat Service for orchestration infrastructure by ansible.
+Group: Application/System
+Vendor: VST Consulting <sergey.k@vstconsulting.net>
+License: AGPL-3+
+AutoReq: No
+AutoProv: No
+# compiled binary tree:
+Source0: %name-%{version}-bin.tar.gz
+Source1:  %name-settings
+Source2:  %name.service
+Source3:  %name.tmpfiles.conf
+
+# Note: these two packages must not be installed by distribution (fedora): python3-pyyaml, python3-blockdiag-devel
+# Build fails, if these two packages are installed!
+Requires: python38, openssl-devel, libxcrypt
+Requires: python38-PyMySQL
+Requires: git
+Requires: krb5-devel, krb5-libs, openldap-devel
+Requires: mailcap
+
+%description
+Polemarch is service for orchestration infrastructure by ansible.
+Simply WEB gui for orchestration infrastructure by ansible playbooks.
+
+%prep
+
+%install
+#/usr/bin/make BUILD_DIR=%{buildroot}
+# Install binary package (compiling does not work here! You need to compile it first!)
+# cd BUILD/polemarch-1.7.3
+# /usr/bin/patch --no-backup-if-mismatch -p0 -b --suffix ~/rpmbuild/SOURCES/venvctrl-patch --fuzz=0
+# /usr/bin/make BUILD_DIR=/root/rpmbuild/BUILDROOT/polemarch
+# cd /root/rpmbuild/BUILDROOT/polemarch
+# tar czf ~/rpmbuild/SOURCES/polemarch-bin-1.7.3.tgz .
+# don't forget to replace version and release number!
+tar xzf %{S:0} -C %{buildroot}
+install -D %{S:1} %{buildroot}%{_sysconfdir}/%{namebase}/settings.ini
+install -D %{S:1} %{buildroot}%{_sysconfdir}/%{namebase}/settings.ini.template
+# fix for fedora rundir config:
+install -d %{buildroot}/run/%name
+install -D %{S:2} %{buildroot}%{_sysconfdir}/systemd/system/%{name}.service
+install -d %{buildroot}%{_var}/lock/%{name}
+install -D %{S:3} %{buildroot}%{_sysconfdir}/tmpfiles.d/%{name}.conf
+# create additional directories:
+install -d %{buildroot}/%{_var}/log/%{name}
+install -d %{buildroot}/opt/%{datad}
+# remove buildroot path in opt/polemarch/bin/activate.csh:
+sed -i -e 's|/root/rpmbuild/BUILDROOT/polemarch.*x86_64||' %{buildroot}/opt/polemarch/bin/activate.csh
+# remove .gitignore file:
+rm -f %{buildroot}/opt/polemarch/.gitignore
+
+%pre
+getent group %{user} >/dev/null || \
+    groupadd -r %{user}
+getent passwd %{user} >/dev/null || \
+    useradd -r -g %{user} -d /opt/%{user} \
+    -s /sbin/nologin -c "%{user} user" %{user}
+exit 0
+
+%post
+%systemd_post %{name}.service
+sudo -u %{user} /opt/%{name}/bin/%{shortname}ctl migrate
+
+%preun
+%systemd_preun %{name}.service
+
+%postun
+%systemd_postun_with_restart %{name}.service
+
+%files
+%defattr(-,%{user},%{user},-)
+%dir %attr(-,%{user},%{user}) /opt/%{namebase}
+%dir %attr(-,%{user},%{user}) /opt/%{datad}
+%dir %attr(-,%{user},%{user}) %{_var}/log/%{namebase}
+%attr(-,%{user},%{user}) /opt/%{namebase}/bin/*
+%attr(-,%{user},%{user}) /opt/%{namebase}/lib/*
+/opt/%{namebase}/lib64
+/opt/%{namebase}/*.cfg
+%dir %{_sysconfdir}/%{namebase}
+%{_rundir}/%{namebase}
+%{_var}/lock/%{namebase}
+%attr(755,%{user},%{user}) %{_sysconfdir}/systemd/system/%{name}.service
+%attr(755,root,root) %{_sysconfdir}/tmpfiles.d/%{namebase}.conf
+%config(noreplace) %{_sysconfdir}/%{namebase}/settings.ini
+%config(noreplace) %{_sysconfdir}/%{namebase}/settings.ini.template
+
+%clean
+[ "%{buildroot}" != "/" ] && [ -d "%{buildroot}" ] && rm -rf %{buildroot}
+[ "%{_builddir}" != "/" ] && [ -d "%{_builddir}" ] && rm -rf %{_builddir}/*
+
+%changelog
+* Mon Jul 18 2022 Daniel Steiner <daniel.steiner@dsteiner.ch>
+- First 2.0.0 build on Almalinux 8.
+