%define _systemd_confdir /usr/lib/systemd/system.conf.d
%define _systemd_user_confdir /usr/lib/systemd/user.conf.d

Summary:	Set kernel limits
Name:		limits
Version:	2
Release:	1
License:	BSD
Group:		System/Configuration/Boot and Init
Url:		https://abf.io/import/limits
BuildArch:	noarch

%description
Set kernel limits

#------------------------------------------------------------------

%package big
Summary:	Set big enough kernel limits

%description big
Set big enough kernel limits

%files big
%config(noreplace) %{_sysconfdir}/security/limits.d/95-%{name}-big.conf
# no %%config(noreplace), it can be overriden in /etc/systemd/system.conf.d/
%{_systemd_confdir}/10-%{name}-big.conf
%{_systemd_user_confdir}/10-%{name}-big.conf

#------------------------------------------------------------------

%prep

%install
set -e
set -u

mkdir -p %{buildroot}
mkdir -p %{buildroot}%{_sysconfdir}/security/limits.d
mkdir -p %{buildroot}%{_systemd_confdir}
mkdir -p %{buildroot}%{_systemd_user_confdir}

# took some ideas from https://packages.altlinux.org/ru/sisyphus/srpms/pam-limits-desktop/

# the same as default config in the "pam" package
NPROC_SOFT=4096
# 2^16
NOFILE_SOFT=65536
# 512*1024, as default @HIGH_RLIMIT_NOFILE@ in systemd
NOFILE_HARD=524288

cat > %{buildroot}%{_sysconfdir}/security/limits.d/95-%{name}-big.conf << EOF
# limits.conf(5)
* soft nproc $NPROC_SOFT
* hard nproc unlimited
* soft nofile $NOFILE_SOFT
* hard nofile $NOFILE_HARD
EOF

# https://github.com/systemd/systemd/issues/25478
cat > %{buildroot}%{_systemd_confdir}/10-%{name}-big.conf << EOF
# system.conf.d(5), systemd.exec(5)
# Example commands to read current values:
# systemd-analyze cat-config systemd/system.conf
# systemctl show -p DefaultLimitNOFILESoft
# cat /proc/PID/limits
[Manager]
DefaultLimitNPROC=$NPROC_SOFT:infinity
DefaultLimitNOFILE=$NOFILE_SOFT:$NOFILE_HARD
EOF

cp %{buildroot}%{_systemd_confdir}/10-%{name}-big.conf %{buildroot}%{_systemd_user_confdir}

set +u