# https://github.com/tcolgate/exporter_exporter
%global goname		exporter_exporter
%global goipath		github.com/tcolgate/%{goname}
%global golicenses	LICENSE
# user the service is running under
%global user	expexp

Version:	0.6.1

%gometa -L -f

Name:           exporter-exporter
Release:        1%{?dist}
Summary:        A reverse proxy designed for Prometheus exporters
Group:          System Environment/Daemons

License:        ASL 2.0
URL:            %{gourl}
Source0:        %{gosource}
Source1:        %{goname}.service
Source2:        %{goname}.conf

BuildRequires:	go-vendor-tools
BuildRequires:  compiler(go-compiler)
BuildRequires:  systemd-rpm-macros

%{?systemd_requires}

%description
exporter_exporter provides a simple reverse proxy for Prometheus exporters. 
It is intended as a single binary alternative to Nginx or Apache for use 
in environments where opening multiple TCP ports to all servers might be 
difficult due to firewalls or policy constraints.

%prep
%autosetup -n %{goname}-%{version}

%build
export GO111MODULE=on
%gobuild -o %{goname} .

%install
install -D -p -m 0755 %{goname} %{buildroot}%{_sbindir}/%{goname}

mkdir -p -m 0750 %{buildroot}%{_sysconfdir}/prometheus/%{goname}.d
install -D -p -m 0640 %{SOURCE2} %{buildroot}%{_sysconfdir}/prometheus/%{goname}.conf
install -D -p -m 0640 expexp.yaml %{buildroot}%{_sysconfdir}/prometheus/expexp.yaml

install -D -p -m 0644 %{SOURCE1} %{buildroot}%{_unitdir}/%{name}.service
ln -sf %{name}.service %{buildroot}%{_unitdir}/%{goname}.service

%pre
getent group %{user} >/dev/null || groupadd -r %{user} || :
getent passwd %{user} >/dev/null || \
    useradd -r -g %{user} -d /var/lib/prometheus -s /sbin/nologin \
    -c "Prometheus exporter_exporter proxy user" %{user} || :

%post
%systemd_post %{name}.service

%preun
%systemd_preun %{name}.service

%postun
%systemd_postun_with_restart %{name}.service

%files
%license LICENSE NOTICE
%doc README.md AUTHORS
%{_sbindir}/%{goname}
%{_unitdir}/%{name}.service
%{_unitdir}/%{goname}.service
%dir %attr(0755, root, root) %{_sysconfdir}/prometheus
%dir %attr(0750, root, %{user}) %{_sysconfdir}/prometheus/%{goname}.d
%config(noreplace) %attr(0640, root, %{user}) %{_sysconfdir}/prometheus/expexp.yaml
%config(noreplace) %attr(0640, root, %{user}) %{_sysconfdir}/prometheus/%{goname}.conf

%changelog
* Sat Oct 17 2026 Andreas Haupt <andreas.haupt@desy.de> - 0.6.1-1
- Initial package for exporter-exporter